WO2015188345A1 - Communication resource management method, user equipment, base station and system - Google Patents

Abstract

Provided are a communication resource management method, a user equipment (UE), a base station and a system, the method comprising: a first UE sends a discovery message to at least one second UE in a wireless network, the discovery message carrying a group identifier of a D2D (device to device) (D2D) communication group and a service identifier corresponding to the D2D communication group; the first UE receives a first application message sent by the second UE, the first application message carrying a user identifier of the second UE; according to the first application message sent by the second UE, the first UE obtains a communication resource for the D2D communication group to perform communication; according to the user identifier of the second UE, the first UE sends the communication resource to the second UE in the D2D communication group, in order to notify each UE in the D2D communication group to perform D2D communication service corresponding to the service identifier using the communication resource. The present invention provides a technical solution enabling the D2D communication to proceed smoothly and reducing or avoiding interference toof cellular network communication.

Description

 Communication resource management method, user equipment, base station, and system

 The present invention relates to communication technologies, and in particular, to a communication resource management method, a user equipment, a base station, and a system. Background technique

 At present, mobile communication networks are moving towards higher transmission rates, resource utilization and network capacity, which puts higher demands on future wireless spectrum resources. Device to Device (D2D) communication refers to direct communication between devices on a data plane that does not pass through a relay device (such as a base station or an access point, etc.) in wireless communication, thereby reducing the load on the cell site.

 In the prior art, the resources used by the D2D communication are the same as those used by the cellular network communication. In order to avoid the interference of the D2D communication to the cellular communication, the cellular network node, such as the base station, is required to coordinate and control the resources available for the D2D communication. However, since there are multiple D2D communication devices that may be located under different base stations; or D2D devices move from one base station to another; or move out of the coverage area of the cellular network, the load of the base station may change, or resources Changes in usage can cause changes in D2D communication resources.

 How to effectively deal with the above situation, making D2D communication smooth and reducing or avoiding interference to cellular communication is an urgent problem to be solved. Summary of the invention

 Embodiments of the present invention provide a communication resource management method, a user equipment, a base station, and a system, which are used to provide a technical solution capable of smoothly performing D2D communication and reducing or avoiding interference to cellular network communication.

In a first aspect, the embodiment of the present invention provides a communication resource management method, including: the first user equipment UE sends a discovery message to at least one second UE in the wireless network, where the discovery message is used to send the at least one The second UE indicates that the first UE supports the device-to-device D2D communication service; the discovery message carries the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group; The first UE receives the first application message sent by the second UE, where the first application message carries the user identifier of the second UE, and the first application message is used by the second UE to apply for joining. The D2D communication group;

 Obtaining, by the first UE, a communication resource used by the D2D communication group to perform communication according to the first application message sent by the second UE;

 Transmitting, by the first UE, a communication resource for performing communication by the D2D communication group to the second UE in the D2D communication group according to a user identifier of the second UE, to notify the D2D communication group Each UE performs the D2D communication service corresponding to the service identifier by using the communication resource.

 With reference to the first aspect, in a first possible implementation manner of the first aspect, the first UE acquires a communication for the D2D communication group to perform communication according to the first application message sent by the second UE Resources, including:

 Transmitting, by the first UE, a first resource request message to the first base station according to the first application message sent by the second UE, where the first UE is within a cell coverage area covered by the first base station, Carrying a group identifier of the D2D communication group in a resource request message;

 Receiving, by the first UE, a first resource response message sent by the first base station, where the first resource response message carries a first communication resource used for performing communication by the D2D communication group; Determining, by the first base station, a group identity of the D2D communication group and a network resource condition of each cell in the current first base station; or, the first communication resource is the first base station according to the D2D communication The group identity of the group is determined after being negotiated by the base station adjacent to the first base station.

 With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the first resource response message further includes a first cell list, where the first cell list includes at least a cell identifier corresponding to a cell, where the first cell list is used to indicate a cell where the first reserved resource used by the D2D communication group to perform communication; the first cell list is determined by the first base station, Or the first cell list is determined after the first base station and the base station adjacent to the first base station jointly negotiate.

 In conjunction with the second possible implementation of the first aspect, in a third possible implementation of the first aspect, the method further includes:

The first UE receives the second application message sent by the third UE, and the second application message carries the user identifier of the third UE and the cell identifier of the cell where the third UE is located; If the cell identifier of the cell where the third UE is located is included in the first cell list, the first UE notifies the third UE to perform D2D communication corresponding to the service identifier by using the first reserved resource. Traffic, and the first UE manages the third UE as one of the second UEs in the D2D communication group.

 In conjunction with the second possible implementation of the first aspect, in a fourth possible implementation manner of the first aspect, the method further includes:

 The first UE receives the second application message sent by the third UE, and the second application message carries the user identifier of the third UE and the cell identifier of the cell where the third UE is located;

 If the cell identifier of the cell where the third UE is located is not included in the first cell list, the first UE sends a second resource request message to the first base station; a group identifier of the D2D communication group and a cell identifier of a cell where the third UE is located, to request the first base station to re-allocate communication resources for the D2D communication group according to a cell identifier of a cell where the third UE is located, and The first UE manages the third UE as one of the second UEs in the D2D communication group;

 Receiving, by the first UE, a second resource response message sent by the first base station, where the second resource response message carries a second communication resource and a second cell list for performing communication by the D2D communication group; The second cell list includes a cell identifier of a cell where the third UE is located;

 Transmitting, by the first UE, a second communication resource for performing communication by the D2D communication group to the second UE in the D2D communication group, to notify each UE in the D2D communication group to utilize the second communication The resource performs the D2D communication service corresponding to the service identifier.

 With reference to any one of the first to fourth possible implementations of the first aspect, in a fifth possible implementation manner of the first aspect, the first application message further carries the second UE a cell identifier of the cell; the method further includes:

 The first UE measures network signal strength and/or network signal quality of a cell where the first UE is located in the process of performing the D2D communication;

 If the network signal strength of the cell where the first UE is located meets the first condition, and/or the network signal quality meets the second condition, the first UE is determined according to the cell identifier of the cell where the second UE is located. Selecting one UE as the fourth UE in the second UE;

If the network signal strength of the cell where the first UE is located is lower than the first signal strength threshold, and/or the network signal quality is lower than the first signal quality threshold, the first UE is small according to each of the second UEs. The cell identifier of the area is selected from each of the second UEs as a fourth UE;

 The first UE sends a first D2D communication resource interface UE change message to the first base station, where the first D2D communication resource interface UE change message carries the group identifier of the D2D communication group, and the D2D communication group a user identifier of each UE and a cell identifier of a cell in which the fourth UE is located; to notify the first base station that the fourth UE is used as a communication representative to manage the first communication resource corresponding to the subsequent D2D communication group ; and / or,

 Transmitting, by the first UE, a second D2D communication resource interface UE change message to the fourth UE, where the second D2D communication resource interface UE change message carries the group identifier of the D2D communication group, and the D2D communication group The user identifier of each UE and the cell identifier of the cell where the first UE is located; to notify the fourth UE to manage the first communication resource corresponding to the subsequent D2D communication group by using the communication unit as the communication representative.

 With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the first UE, according to a cell identifier of a cell in which the second UE is located, from each of the second Selecting one UE as the fourth UE in the UE includes:

 Sending, by the first UE, a query request to the second UE in the D2D communication group according to a cell identifier of a cell where the second UE is located;

 Receiving, by the first UE, a query response sent by the second UE, where the query response carries network signal strength and/or network signal quality of a cell where the second UE is located;

 The first UE selects, as the fourth UE, the second UE that has the strongest network signal strength or the network signal quality of the cell in the second UE, or the first UE from each of the second UEs. The second UE that selects one of the second UEs has the strongest integrated network signal strength and network signal quality as the fourth UE.

 With reference to the first aspect, in a seventh possible implementation manner of the first aspect, the first application message further carries a cell identifier of a cell where the second UE is located;

 Obtaining, by the first UE, according to the first application message sent by the second UE,

Communication resources for communication by the D2D communication group, including:

The first UE measures the network signal strength and/or the network signal quality of the cell where the second UE is located according to the cell identifier of the cell where the second UE is located, and selects one UE from each of the second UEs according to the measurement result. And as the fifth UE, sending the first resource request message to the fifth UE, to notify the fifth UE to enter the communication resource of the D2D communication group by using the fifth UE as a communication representative And the fifth UE is instructed to forward the first resource request message to the base station to which the cell where the fifth UE belongs, and then request the base station to which the cell where the fifth UE belongs to allocate the D2D communication group. Performing communication resources of the D2D communication service corresponding to the service identifier;

 The first UE receives a communication resource sent by the fifth UE for performing communication by the D2D communication group.

 With reference to any one of the first to fourth possible embodiments of the first aspect, in an eighth possible implementation manner of the first aspect, the method further includes:

 The first UE, in the process of performing the D2D communication, measures network signal strength and/or network signal quality of the cell where the first UE is located and the neighboring cell of the cell where the first UE is located, and according to the measurement result Select or switch to a new cell;

 Determining, by the first UE, a base station to which the new cell in which the first UE belongs is the new first base station, and transmitting a D2D communication resource cell change message to the first base station; the D2D communication resource The cell change message carries the group identifier of the D2D communication group and the user identifier of the first UE, to notify the first base station that the first UE under the new cell continues to be the communication representative for the subsequent The communication resources of the D2D communication group are managed; or

 Sending, by the base station to which the original cell belongs, the D2D communication resource cell change message to the first base station to which the new cell belongs, in the process of the reselection or handover, to notify the first base station The first UE under the new cell continues to manage the communication resources of the subsequent D2D communication group as a communication representative.

 With reference to any one of the first to fourth possible embodiments of the first aspect, in a ninth possible implementation manner of the first aspect, the method further includes:

 Receiving, by the first UE, the first resource change message sent by the first base station in the process of performing the D2D communication; the first resource change message carrying the first change communication resource;

 Transmitting, by the first UE, the first change communication resource carried in the first resource change message to the second UE in the D2D communication group, so that each of the D2D communication groups The second UE uses the first change communication resource to perform the D2D communication service corresponding to the service identifier; and the first UE updates the cell identifier of the cell where the first change communication resource is located to the corresponding location of the D2D communication group. In the first cell list.

With reference to the fifth possible implementation manner of the first aspect, in a tenth possible implementation manner of the first aspect, the foregoing, by the fourth UE as a communication representative, corresponding to the D2D communication group After the communication resource is managed, and the first UE performs the D2D communication, the method further includes:

 Receiving, by the first UE, a second resource change message sent by the fourth UE, where the second resource change message carries a second change communication resource;

 The first UE performs the D2D communication service corresponding to the service identifier by using the second change communication resource.

 With reference to the seventh possible implementation of the first aspect, in a first possible implementation manner of the first aspect, the communication resource of the D2D communication group by the fifth UE as a communication representative After the management, the first UE, in the process of performing the D2D communication, further includes: the first UE receiving a third resource change message sent by the fifth UE; and the third resource change message Carrying a third change communication resource;

 The first UE performs the D2D communication service corresponding to the service identifier by using the third change communication resource.

 In a second aspect, the embodiment of the present invention provides another communication resource management method, including: the second user equipment UE receives a discovery message sent by the first UE from the wireless network; and the discovery message carries the device-to-device D2D communication group. The group identifier and the service identifier corresponding to the D2D communication group;

 The second UE sends a first application message to the first UE according to the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group, where the first application message carries the second UE a user identifier; the first application message is used by the second UE to join the D2D communication group;

 The second UE receives a communication resource that is sent by the first UE according to the user identifier of the second UE for performing communication by the D2D communication group, and performs D2D communication corresponding to the service identifier by using the communication resource. business.

 With reference to the second aspect, in a first possible implementation manner of the second aspect, the method further includes: the second UE receiving, by the first UE, the D2D communication sent by the first UE in a process of performing the D2D communication The group performs the communication change communication resource, and executes the D2D communication service corresponding to the service identifier by using the changed communication resource.

With the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the first application message further carries a small cell of the second UE Area identification; the method further includes:

 The second UE receives, as a fourth UE, a second D2D communication resource interface UE change message sent by the first UE in the process of performing the D2D communication, where the second D2D communication resource interface UE change message carries a group identifier of the D2D communication group, a user identifier of each UE in the D2D communication group, and a cell identifier of a cell where the first UE is located; • the fourth UE is the first UE according to the D2D communication group a cell identifier of a cell in which the second UE is located, and one UE selected from each of the second UEs;

 Transmitting, by the second UE that is the fourth UE, the second D2D communication resource interface UE change message to the second base station to which the second UE is located, to indicate that the second base station is used as the first The second UE of the four UEs manages the communication resources of the subsequent D2D communication group as a communication representative.

 With reference to the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the second UE receives the first UE as a fourth UE in the process of performing the D2D communication Before the second D2D communication resource interface UE changes the message sent by the UE, the method further includes:

 The second UE that is the fourth UE receives the query request sent by the first UE, and the second UE that is the fourth UE sends a query response to the first UE, where the query response is Carrying network signal strength and/or network signal quality of the cell where the second UE is located.

 With reference to the second or third possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, the second UE, as the communication representative, corresponds to the D2D communication group After the communication resource is managed, and the second UE is in the process of performing the D2D communication, the method further includes:

 The second UE receives the second resource change message sent by the second base station to which the second UE is located; the second resource change message carries the second change communication resource;

 And transmitting, by the second UE, the second change communication resource to each UE in the D2D communication group, to notify each UE to perform the D2D communication service corresponding to the service identifier by using the second change communication resource.

In a third aspect, the embodiment of the present invention provides a communication resource management method, including: the second user equipment UE receives a discovery message sent by the first UE from the wireless network; and the discovery message carries the device-to-device D2D communication group. The group identifier and the service identifier corresponding to the D2D communication group; The second UE sends a first application message to the first UE according to the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group, where the first application message carries the second UE a user identifier and a cell identifier of a cell where the second UE is located; the first application message is used by the second UE to join the D2D communication group;

 Receiving, by the second UE, the first resource request message sent by the first UE, where the first resource request message carries the group identifier of the D2D communication group and each UE in the D2D communication group. a user identifier, to notify the fifth UE to manage the communication resource of the D2D communication group by the communication UE; the fifth UE is the first UE according to the cell where each second UE is located a cell identifier selected from each of the second UEs;

 The second UE that is the fifth UE forwards the first resource request message to the second base station to which the cell to which the cell belongs, to request the second base station to allocate the service identifier for the D2D communication group to be executed. Corresponding communication resources of the D2D communication service;

 Receiving, by the second UE of the fifth UE, a first resource response message sent by the second base station, where the first resource response message carries a communication resource used by the D2D communication group to perform communication; The communication resource is determined by the second base station according to the group identifier of the D2D communication group and the network resource condition of each cell under the current second base station; or, the communication resource is the second base station according to the D2D The group identifier of the communication group is determined after being negotiated by the base station adjacent to the second base station;

 Transmitting, by the second UE, the second UE, a communication resource for performing communication by the D2D communication group to each UE in the D2D communication group according to a user identifier of each UE in the D2D communication group, to notify each The UE performs the D2D communication service corresponding to the service identifier by using the communication resource.

 With reference to the third aspect, in a first possible implementation manner of the third aspect, the first resource response message further includes a cell list, where the cell list includes a cell identifier corresponding to the at least one cell, where the cell list is used by a cell indicating that the reserved resource utilized by the D2D communication group performs communication; the cell list is determined by the second base station, or the cell list is the second base station passing and the second The base stations adjacent to the base station are jointly negotiated and determined.

With reference to the third aspect, or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the fifth UE is used as a communication representative to correspond to the D2D communication group. After the communication resource is managed, and the fifth UE performs the D2D communication, the method further includes: The third UE receives a third resource change message sent by the second base station to which the cell where the fifth UE belongs, and the third resource change message carries the third change communication resource;

 Transmitting, by the fifth UE, the third change communication resource to each UE in the D2D communication group, to notify each UE to perform the fourth aspect of D2D communication corresponding to the service identifier by using the third change communication resource, An embodiment of the present invention provides a communication resource management method, including: receiving, by a first base station, a first resource request message sent by a first UE, where the first UE is within a cell coverage area of the first base station, The first resource request message carries the group identifier of the D2D communication group;

 Determining, by the first base station, a first communication resource used for performing communication by the D2D communication group according to a group identifier of the D2D communication group and a network resource condition of each cell under the first base station; or, the first Determining, by the base station, the first communication resource after being negotiated by the base station adjacent to the first base station according to the group identifier of the D2D communication group;

 The first base station sends a first resource response message to the first UE, where the first resource response message carries the first communication resource used by the D2D communication group to perform communication.

 With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the first resource response message further includes a first cell list, where the first cell list includes a cell identifier corresponding to the at least one cell, where The first cell list is used to indicate a cell where the first reserved resource used by the D2D communication group to perform communication; the first cell list is determined by the first base station, or the first cell list is And determining, by the first base station, the base station adjacent to the first base station to negotiate together.

 With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the method further includes:

 Receiving, by the first base station, a second resource request message sent by the first UE, where the second resource request message carries a group identifier of the D2D communication group and a cell identifier of a cell where the third UE is located, where the third The cell identifier of the cell where the UE is located is not included in the first cell list;

The first base station re-allocates communication resources for the D2D communication group according to the cell identifier of the cell where the third UE is located, the group identifier of the D2D communication group, and the network resource condition of each cell under the current first base station; Or the first base station, after being negotiated by the base station adjacent to the first base station, according to the cell identifier of the cell where the third UE is located and the group identifier of the D2D communication group Redistributing the communication resource for the D2D communication group;

 The first base station sends a second resource response message to the first UE, where the second resource response message carries the communication resource and the second cell list re-allocated for the D2D communication group; The cell list includes a cell identifier of a cell where the third UE is located.

 With reference to the fourth aspect or the first or second possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the first base station sends the foregoing to the first UE After the resource response message or the second resource response message, the method further includes:

 Receiving, by the first base station, a first D2D communication resource interface UE change message sent by the first UE, where the first D2D communication resource interface UE change message carries the group identifier of the D2D communication group, and the D2D communication group a user identifier of each UE in the UE and a cell identifier of a cell where the fourth UE is located; the first D2D communication resource interface UE change message is used to notify the first base station that the fourth UE is used as a communication representative to perform subsequent D2D communication The first communication resource corresponding to the group is managed;

 And transmitting, by the first base station, the first D2D communication resource interface UE change message to the base station to which the fourth UE is located, according to the cell identifier of the cell where the fourth UE is located, to notify the cell where the fourth UE is located The associated base station is used by the fourth UE as a communication representative for the subsequent

The communication resources of the D2D communication group are managed; or

 Receiving, by the first base station, a second D2D communication resource interface UE change message sent by the fourth UE that is sent by the base station to which the fourth UE belongs, where the second D2D communication resource interface UE change message carries the a group identifier of the D2D communication group, a user identifier of the fourth UE, and a cell identifier of a cell where the fourth UE is located, to learn that the fourth UE is used as a communication representative to the communication resource of the subsequent D2D communication group Manage.

 With reference to the fourth aspect or the first or second possible implementation manner of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the method further includes:

 The first base station receives a D2D communication resource cell change message that is sent by the first UE, and the D2D communication resource cell change message carries the group identifier of the D2D communication group and the first UE. The user identifier is configured to enable the first base station to learn that the first UE under the third base station continues to be the communication representative to manage the communication resource of the subsequent D2D communication group.

In combination with the fourth aspect or the first or second possible implementation of the fourth aspect, in the fourth party In a fifth possible implementation manner, the method further includes:

 The first UE sends a first resource change message to the first UE in the process of performing the D2D communication; the first resource change message carries the changed first communication resource; And causing, by the first UE, information about the changed first communication resource to be sent to each UE in the D2D communication group, to notify each UE to perform the D2D communication by using the changed first communication resource. And indicating to the first UE, the cell identifier of the cell where the first change communication resource is located is updated to the first cell list corresponding to the D2D communication group.

 In a fifth aspect, the embodiment of the present invention provides a communication resource management method, including: receiving, by a second base station, a first resource request message sent by a first UE, where the second UE is sent; The first resource request message carries the group identifier of the D2D communication group; the first resource request message is used by the first UE to perform communication resources for the D2D communication group in which the first UE is located. Application;

 Determining, by the second base station, a communication resource used for communication by the D2D communication group according to a group identifier of the D2D communication group and a network resource condition of each cell under the current second base station; or, the second base station is configured according to The group identifier of the D2D communication group determines the communication resource after being mutually negotiated by a base station adjacent to the second base station;

 The second base station sends a first resource response message to the second UE, where the first resource response message carries the communication resource used for performing communication by the D2D communication group.

 With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the first resource response message further includes a cell list, where the cell list includes a cell identifier corresponding to the at least one cell, where the cell list is used by a cell indicating that the reserved resource utilized by the D2D communication group performs communication; the cell list is determined by the second base station, or the cell list is the second base station and the second base station The neighboring base stations are determined after mutual negotiation.

 In a sixth aspect, an embodiment of the present invention provides a user equipment, including:

 a sending module, configured to send a discovery message to the at least one second UE in the wireless network, where the discovery message is used to indicate to the at least one second UE that the first UE supports device-to-device D2D communication service; The message carries the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group;

a receiving module, configured to receive a first application message sent by the second UE, where the first application message carries a user identifier of the second UE, and the first application message is used by the second UE to apply Entering the D2D communication group;

 a processing module, configured to acquire, according to the first application message sent by the second UE, a communication resource used by the D2D communication group to perform communication;

 The sending module is further configured to send, according to the user identifier of the second UE, a communication resource for performing communication by the D2D communication group to the second UE in the D2D communication group, to notify the D2D The UE in the communication group performs the D2D communication industry corresponding to the service identifier by using the communication resource, and combines the sixth aspect. In a first possible implementation manner of the sixth aspect, the processing module is specifically configured to:

 Instructing the sending module to send a first resource request message to the first base station according to the first application message sent by the second UE, where the first UE is within a cell coverage area covered by the first base station, Carrying a group identifier of the D2D communication group in a resource request message;

 Instructing the receiving module to receive the first resource response message sent by the first base station, where the first resource response message carries a first communication resource for performing communication by the D2D communication group; the first communication resource is Determining, by the first base station, a group identity of the D2D communication group and a network resource condition of each cell in the current first base station; or, the first communication resource is the first base station according to the D2D communication The group identity of the group is determined after being negotiated by the base station adjacent to the first base station.

 With reference to the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect, the first resource response message further includes a first cell list, where the first cell list includes at least a cell identifier corresponding to a cell, where the first cell list is used to indicate a cell where the first reserved resource used by the D2D communication group to perform communication; the first cell list is determined by the first base station, Or the first cell list is determined after the first base station and the base station adjacent to the first base station jointly negotiate.

 In conjunction with the second possible implementation of the sixth aspect, in a third possible implementation of the sixth aspect,

The receiving module is further configured to receive a second application message sent by the third UE, where the second application message carries a user identifier of the third UE and a cell identifier of a cell where the third UE is located; The module is further configured to: if the cell identifier of the cell where the third UE is located is included in the first cell list, notify the third UE to perform the service identifier by using the first reserved resource Corresponding D2D communication service, and instructing the first UE to manage the third UE as one of the second UEs in the D2D communication group.

 In conjunction with the second possible implementation of the sixth aspect, in a fourth possible implementation of the sixth aspect,

 The receiving module is further configured to receive a second application message sent by the third UE, where the second application message carries a user identifier of the third UE and a cell identifier of a cell where the third UE is located; The module is further configured to: if the cell identifier of the cell where the third UE is located is not included in the first cell list, instruct the sending module to send a second resource request message to the first base station; The resource request message carries the group identifier of the D2D communication group and the cell identifier of the cell where the third UE is located, to request the first base station to re-create the D2D communication group according to the cell identifier of the cell where the third UE is located. Allocating a communication resource, and instructing the first UE to manage the third UE as one of the second UEs in the D2D communication group;

 The receiving module is further configured to receive a second resource response message that is sent by the first base station, where the second resource response message carries a second communication resource and a second cell list that are used by the D2D communication group to perform communication. The second cell list includes a cell identifier of a cell where the third UE is located; the sending module is further configured to send, to the second UE in the D2D communication group, the D2D communication group to perform The second communication resource of the communication is configured to notify each UE in the D2D communication group to perform the D2D communication service corresponding to the service identifier by using the second communication resource.

 With the possible implementation of any one of the first to fourth aspects of the sixth aspect, in a fifth possible implementation manner of the sixth aspect, the first application message further carries the second UE The cell identity of the cell;

 The processing module is further configured to: when the first UE performs the D2D communication, measure network signal strength and/or network signal quality of a cell where the first UE is located;

 If the network signal strength of the cell where the first UE is located is lower than the first signal strength threshold, and/or the network signal quality is lower than the first signal quality threshold, the processing module is configured according to the cell of each cell where the second UE is located. Identifying, selecting one UE from each of the second UEs as the fourth UE;

The sending module is configured to send, to the first base station, a first D2D communication resource interface UE change message, where the first D2D communication resource interface UE change message carries the group identifier of the D2D communication group, and the D2D communication a user identifier of each UE in the group and a cell identifier of a cell where the fourth UE is located; to notify the first base station that the fourth UE is used as a communication representative to the subsequent D2D communication group pair The first communication resource should be managed; and/or,

 The sending module sends a second D2D communication resource interface UE change message to the fourth UE, where the second D2D communication resource interface UE change message carries the group identifier of the D2D communication group, and each of the D2D communication groups The user identifier of the UE and the cell identifier of the cell where the first UE is located; to notify the fourth UE to manage the first communication resource corresponding to the subsequent D2D communication group by using the same as the communication representative.

 With reference to the fifth possible implementation manner of the sixth aspect, in a sixth possible implementation manner of the sixth aspect, the processing module, according to a cell identifier of a cell in which the second UE is located, from each of the second UEs Selecting one UE as the fourth UE includes:

 And the processing module, according to the cell identifier of the cell where the second UE is located, instructing, by the sending module, to send a query request to the second UE in the D2D communication group;

 The processing module instructs the receiving module to receive a query response sent by the second UE, where the query response carries network signal strength and/or network signal quality of a cell where the second UE is located; And selecting, by the second UE, the second UE that has the strongest network signal strength or the network signal quality of the cell in the second UE as the fourth UE, or the processing module selects one of each of the second UEs. The second UE having the strongest integrated network signal strength and network signal quality of the cell serves as the fourth UE.

 With reference to the sixth aspect, in a seventh possible implementation manner of the sixth aspect, the first application message further includes a cell identifier of a cell where the second UE is located;

 The processing module is further configured to measure network signal strength and/or network signal quality of the cell where the second UE is located according to the cell identifier of the cell where the second UE is located, and use the measurement result from each of the second UEs. Selecting one UE as the fifth UE, and instructing the sending module to send the first resource request message to the fifth UE, to notify the fifth UE that the fifth UE is the communication representative to the D2D communication group. The communication resource is managed; and the fifth UE is instructed to forward the first resource request message to the base station to which the cell where the fifth UE belongs, and then request the base station to which the cell in which the fifth UE belongs to allocate the D2D. The communication group executes the communication resource of the D2D communication service corresponding to the service identifier;

 The processing module instructs the receiving module to receive a communication resource sent by the fifth UE for performing communication by the D2D communication group.

In combination with any of the first to fourth possible embodiments of the sixth aspect, in the sixth aspect In the eighth possible implementation manner,

 The processing module is further configured to: when the first UE performs the D2D communication, measure a network signal strength and/or a network of a cell where the first UE is located and a neighboring cell of a cell where the first UE is located. Signal quality, and reselect or switch to a new cell based on the measurement result;

 The processing module is further configured to determine, by the base station to which the new cell in which the first UE belongs, as the new first base station, and instruct the sending module to send a D2D communication resource cell change message to the first base station. The D2D communication resource cell change message carries the group identifier of the D2D communication group and the user identifier of the first UE, to notify the first base station to continue by the first UE under the new cell. The communication representative manages the communication resources of the subsequent D2D communication group; or

 The processing module instructs the sending module to send the D2D communication resource cell change message to the first base station to which the new cell belongs by using the base station to which the original cell belongs in the process of the reselection or handover, to notify the The first base station continues to manage the communication resources of the subsequent D2D communication group by the first UE under the new cell as a communication representative.

 With reference to any one of the first to fourth possible embodiments of the sixth aspect, in a ninth possible implementation manner of the sixth aspect,

 The receiving module is further configured to receive, by the first UE, a first resource change message sent by the first base station in the process of performing the D2D communication, where the first resource change message carries a first change communication Resource

 The sending module is further configured to send the first change communication resource carried in the first resource change message to the second UE in the D2D communication group, so that each of the D2D communication groups The second UE performs the D2D communication service corresponding to the service identifier by using the first change communication resource; and instructs the processing module to update the cell identifier of the cell where the first change communication resource is located to the D2D communication group. Corresponding to the first cell list.

 In conjunction with the fifth possible implementation of the sixth aspect, in a tenth possible implementation of the sixth aspect,

The receiving module is further configured to: after the fourth UE is used as a communication representative to manage the first communication resource corresponding to the D2D communication group, and the first UE is performing the D2D communication Receiving, by the fourth UE, the second resource change message, where the second resource change message carries the second change communication resource; The processing module is further configured to perform, by using the second change communication resource, a D2D communication service corresponding to the service identifier.

 In conjunction with the seventh possible implementation of the sixth aspect, in a first possible implementation of the sixth aspect,

 The receiving module is further configured to: after the fifth UE is used as a communication representative to manage the communication resource of the D2D communication group, and the first UE is in the process of performing the D2D communication, Receiving, by the fifth UE, a third resource change message, where the third resource change message carries a third change communication resource;

 The processing module is further configured to perform, by using the third change communication resource, a D2D communication service corresponding to the service identifier.

 In a seventh aspect, the embodiment of the present invention provides another user equipment, including:

 a receiving module, configured to receive a discovery message sent by the first UE from the wireless network, where the discovery message carries a group identifier of the device to the device D2D communication group and a service identifier corresponding to the D2D communication group;

 a sending module, configured to send a first application message to the first UE according to the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group, where the first application message carries the user identifier of the second UE The first application message is used by the second UE to apply to join the D2D communication group;

 The receiving module is further configured to receive, by the first UE, a communication resource that is sent by the D2D communication group to perform communication according to the user identifier of the second UE, and instruct the second UE to use the communication resource. Performing a D2D communication service corresponding to the service identifier.

 With reference to the seventh aspect, in a first possible implementation manner of the seventh aspect, the receiving module is further configured to: when the second UE performs the D2D communication, receive, by the first UE, The D2D communication group performs a communication change communication resource, and instructs the second UE to perform the D2D communication service corresponding to the service identifier by using the changed communication resource.

 With reference to the seventh aspect, or the first possible implementation manner of the seventh aspect, in a second possible implementation manner of the seventh aspect, the first application message further carries a cell identifier of a cell where the second UE is located ;

The receiving module is further configured to receive, by the second UE, a second D2D communication resource interface UE change message sent by the first UE when the second UE is in the process of performing the D2D communication, where the The second D2D communication resource interface UE change message carries the group identifier of the D2D communication group, the user identifier of each UE in the D2D communication group, and the cell identifier of the cell where the first UE is located; a first UE selected from each of the second UEs according to a cell identifier of a cell in which the second UE is located in the D2D communication group;

 The sending module is further configured to: when the second UE is the fourth UE, send the second D2D communication resource interface UE change message to the second base station to which the second UE is located, to notify the The second base station is used by the second UE as the fourth UE as a communication representative for the subsequent

The communication resources of the D2D communication group are managed.

 With reference to the second possible implementation manner of the seventh aspect, in a third possible implementation manner of the seventh aspect, the second UE passes the receiving module as a fourth UE in the process of performing the D2D communication Before receiving the second D2D communication resource interface UE change message sent by the first UE, the receiving module is configured to receive a query request sent by the first UE;

 The sending module is configured to send a query response to the first UE, where the query response carries network signal strength and/or network signal quality of a cell where the second UE is located.

 With reference to the second or third possible implementation manner of the seventh aspect, in a fourth possible implementation manner of the seventh aspect, the second UE is used as a communication representative to correspond to the D2D communication group After the communication resource is managed, and the second UE is in the process of performing the D2D communication, the receiving module is further configured to receive a second resource change sent by the second base station to which the second UE is located. The second resource change message carries the second change communication resource;

 The sending module is further configured to send the second change communication resource to each UE in the D2D communication group, to notify each UE to perform the service identifier corresponding to the second change communication resource.

D2D communication service.

 In an eighth aspect, the embodiment of the present invention provides another user equipment, including:

 a receiving module, configured to receive a discovery message sent by the first UE from the wireless network, where the discovery message carries a group identifier of the device to the device D2D communication group and a service identifier corresponding to the D2D communication group;

a sending module, configured to send a first application message to the first UE according to the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group, where the first application message carries the second UE a user identifier and a cell identifier of a cell where the second UE is located; the first application message is used by the second UE to join the D2D communication group; The receiving module is further configured to: when the second UE is used as the fifth UE, receive the first resource request message sent by the first UE, where the first resource request message carries the group identifier of the D2D communication group and a user identifier of each UE in the D2D communication group, to notify the fifth UE to manage the communication resource of the D2D communication group as a communication representative; the fifth UE is the first UE according to the The cell identifier of the cell in which the second UE is located is selected from one of the second UEs, and the sending module is further configured to use, when the second UE is the fifth UE, to the second UE. The second base station to which the cell is located forwards the first resource request message, to request the second base station to allocate a communication resource for the D2D communication group to perform the D2D communication service corresponding to the service identifier;

 The receiving module is further configured to receive, by the second UE, the first resource response message sent by the second base station, where the first resource response message is carried in the D2D communication group. a communication resource that performs communication; the communication resource is determined by the second base station according to the group identifier of the D2D communication group and the network resource status of each cell in the current second base station; or, the communication resource is Determining, by the second base station, that the group identifier of the D2D communication group is jointly negotiated by a base station adjacent to the second base station;

 The sending module is further configured to send, when the second UE is the fifth UE, to the UEs in the D2D communication group to perform the D2D communication group according to user identifiers of UEs in the D2D communication group. And a communication resource of the communication, to notify each of the UEs to perform the D2D communication service corresponding to the service identifier by using the communication resource.

 With reference to the eighth aspect, in a first possible implementation manner of the eighth aspect, the first resource response message further includes a cell list, where the cell list includes a cell identifier corresponding to the at least one cell, where the cell list is used by a cell indicating that the reserved resource utilized by the D2D communication group performs communication; the cell list is determined by the second base station, or the cell list is the second base station passing and the second The base stations adjacent to the base station are jointly negotiated and determined.

 With reference to the eighth aspect, or the first possible implementation manner of the eighth aspect, in a second possible implementation manner of the eighth aspect,

The receiving module is further configured to receive a third resource change message sent by the second base station to which the cell where the fifth UE is located, where the third resource change message carries a third change communication resource; And the third change communication resource is sent to each UE in the D2D communication group, to notify each UE to perform the service identifier corresponding to the third change communication resource. D2D communication service.

 A ninth aspect, the embodiment of the present invention provides a base station, including:

 a receiving module, configured to receive a first resource request message sent by the first UE, where the first UE is in the cell coverage area of the first base station, and the first resource request message carries a group identifier of the D2D communication group;

 a processing module, configured to determine, according to the group identifier of the D2D communication group and a network resource condition of each cell under the first base station, a first communication resource used for performing communication by the D2D communication group; or, the processing module Determining, according to the group identifier of the D2D communication group, the first communication resource after being mutually negotiated by a base station adjacent to the first base station;

 And a sending module, configured to send, to the first UE, a first resource response message, where the first resource response message carries the first communication resource used by the D2D communication group to perform communication.

 With reference to the ninth aspect, in a first possible implementation manner of the ninth aspect, the first resource response message further includes a first cell list, where the first cell list includes a cell identifier corresponding to the at least one cell, where The first cell list is used to indicate a cell in which the first reserved resource used by the D2D communication group to perform communication; the first cell list is determined by the processing module, or the first cell list is The processing module is determined after the negotiation with the base station adjacent to the first base station.

 In conjunction with the first possible implementation of the ninth aspect, in a second possible implementation of the ninth aspect,

 The receiving module is further configured to receive a second resource request message sent by the first UE, where the second resource request message carries a group identifier of the D2D communication group and a cell identifier of a cell where the third UE is located, where The cell identifier of the cell where the third UE is located is not included in the first cell list, and the processing module is further configured to: according to the cell identifier of the cell where the third UE is located, the group identifier of the D2D communication group, and the current The network resource situation of the cells in the first base station is re-allocated communication resources to the D2D communication group; or the processing module is configured according to the cell identifier of the cell where the third UE is located and the group identifier of the D2D communication group. Re-allocating the communication resource for the D2D communication group by co-negotiating with a base station adjacent to the first base station;

The sending module is further configured to send a second resource response message to the first UE, where the second resource response message carries the communication resource and the second cell list that are re-allocated for the D2D communication group; The second cell list includes a cell identifier of a cell where the third UE is located. With reference to the ninth aspect or the first or second possible implementation manner of the ninth aspect, in a third possible implementation manner of the ninth aspect,

 The receiving module is further configured to receive a first D2D communication resource interface UE change message sent by the first UE, where the first D2D communication resource interface UE change message carries the group identifier of the D2D communication group, and the a user identifier of each UE in the D2D communication group and a cell identifier of a cell where the fourth UE is located; the first D2D communication resource interface UE change message is used to notify the first base station that the fourth UE is used as a communication representative to the subsequent station The first communication resource corresponding to the D2D communication group is managed; the sending module is further configured to send, according to the cell identifier of the cell where the fourth UE is located, to the base station to which the fourth UE is located, a D2D communication resource interface UE change message to notify the base station to which the cell in which the fourth UE belongs is managed by the fourth UE as a communication representative to the communication resource of the subsequent D2D communication group; or

 The receiving module receives a second D2D communication resource interface UE change message sent by the fourth UE that is sent by the base station to which the fourth UE belongs, and the second D2D communication resource interface UE change message carries the D2D a group identifier of the communication group, a user identifier of the fourth UE, and a cell identifier of a cell where the fourth UE is located, so that the first base station learns that the fourth UE is used as a communication representative to the subsequent D2D communication group. The communication resources are managed.

 With reference to the ninth aspect or the first or second possible implementation manner of the ninth aspect, in a fourth possible implementation manner of the ninth aspect,

 The receiving module is further configured to receive, by the third base station, a D2D communication resource cell change message that is sent by the first UE, where the D2D communication resource cell change message carries the group identifier of the D2D communication group and the a user identifier of a UE, so that the first base station learns that the first UE under the third base station continues to be a communication representative to manage the communication resource of the subsequent D2D communication group.

With the ninth aspect or the first or second possible implementation manner of the ninth aspect, in a fifth possible implementation manner of the ninth aspect, the first UE is in the process of performing the D2D communication, The sending module is further configured to send a first resource change message to the first UE, where the first resource change message carries the changed first communication resource, so that the first UE changes the first Sending information of a communication resource to each UE in the D2D communication group to notify each UE to perform the service of the D2D communication by using the changed first communication resource; and instructing the first UE to Updating, to the first corresponding to the D2D communication group, the cell identifier of the cell where the first communication resource is located In a cell list.

 The tenth aspect of the present invention provides another base station, including:

 a receiving module, configured to receive, by the second UE, a first resource request message sent by the first UE, where the second UE is within a cell coverage area of the second base station, and the first resource request message carries the D2D communication group The first resource request message is used by the first UE to perform a communication resource application for the D2D communication group in which the first UE is located;

 a processing module, configured to determine a communication resource used for communication by the D2D communication group according to a group identifier of the D2D communication group and a network resource condition of each cell under the current second base station; or, the processing module is configured according to the Determining, by the base station adjacent to the second base station, the communication resource after determining the group identity of the D2D communication group;

 And a sending module, configured to send, to the second UE, a first resource response message, where the first resource response message carries the communication resource used by the D2D communication group to perform communication.

 With reference to the tenth aspect, in a first possible implementation manner of the tenth aspect, the first resource response message further includes a cell list; the cell list includes a cell identifier corresponding to at least one cell, and the cell list is used by a cell indicating that the reserved resource utilized by the D2D communication group performs communication; the cell list is determined by the processing module, or the cell list is adjacent to the second base station by the processing module Determined after the base station has negotiated together.

 In an eleventh aspect, the embodiment of the present invention provides another user equipment, including:

 a transmitter, configured to send a discovery message to the at least one second UE in the wireless network, where the discovery message is used to indicate to the at least one second UE that the first UE supports device-to-device D2D communication service; The message carries the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group;

 a receiver, configured to receive a first application message sent by the second UE, where the first application message carries a user identifier of the second UE, and the first application message is used by the second UE to apply for joining The D2D communication group;

 a processor, configured to acquire, according to the first application message sent by the second UE, a communication resource used by the D2D communication group to perform communication;

The transmitter is further configured to send, according to the user identifier of the second UE, a communication resource for performing communication by the D2D communication group to the second UE in the D2D communication group, to notify the D2D Each UE in the communication group performs the D2D communication industry corresponding to the service identifier by using the communication resource In conjunction with the first aspect, in a first possible implementation of the second aspect, the processor is specifically configured to:

 Instructing the sender to send a first resource request message to the first base station according to the first application message sent by the second UE, where the first UE is within a cell coverage area of the first base station, Carrying a group identifier of the D2D communication group in a resource request message;

 Instructing the receiver to receive the first resource response message sent by the first base station, where the first resource response message carries a first communication resource for performing communication by the D2D communication group; the first communication resource is Determining, by the first base station, a group identity of the D2D communication group and a network resource condition of each cell in the current first base station; or, the first communication resource is the first base station according to the D2D communication The group identity of the group is determined after being negotiated by the base station adjacent to the first base station.

 With reference to the first possible implementation of the first aspect, in a second possible implementation manner of the second aspect, the first resource response message further includes a first cell list; a cell identifier corresponding to the at least one cell, where the first cell list is used to indicate a cell where the first reserved resource used by the D2D communication group to perform communication; and the first cell list is determined by the first base station Or the first cell list is determined after the first base station and the base station adjacent to the first base station jointly negotiate.

 In conjunction with the second possible implementation of the first aspect, in a third possible implementation of the second aspect,

 The receiver is further configured to receive a second application message sent by the third UE, where the second application message carries a user identifier of the third UE and a cell identifier of a cell where the third UE is located; And the third UE is configured to perform the D2D communication corresponding to the service identifier by using the first reserved resource, if the cell identifier of the cell where the third UE is located is included in the first cell list. Traffic, and instructing the first UE to manage the third UE as one of the second UEs in the D2D communication group.

 In conjunction with the second possible implementation of the first aspect, in a fourth possible implementation of the second aspect,

The receiver is further configured to receive a second application message sent by the third UE, where the second application message carries a user identifier of the third UE and a cell identifier of a cell where the third UE is located; The processor is further configured to: if the cell identifier of the cell where the third UE is located is not included in the first cell list, instruct the sender to send a second resource request message to the first base station; The second resource request message carries the group identifier of the D2D communication group and the cell identifier of the cell where the third UE is located, to request the first base station to use the cell identifier of the cell where the third UE is located as the D2D The communication group reallocates a suitable communication resource, and instructs the first UE to manage the third UE as one of the second UEs in the D2D communication group;

 The receiver is further configured to receive a second resource response message returned by the first base station, where the second resource response message carries information and a second information of a second communication resource used for communication by the D2D communication group a cell list; the second cell list includes a cell in which the third UE is located; the transmitter is further configured to send, to the second UE in the D2D communication group, the

The D2D communication group performs the communication of the second communication resource to notify each UE in the D2D communication group to perform the D2D communication service corresponding to the service identifier by using the second communication resource.

 In a fifth possible implementation manner of the first aspect, the first application message further carries the second The cell identifier of the cell where the UE is located;

 The processor is further configured to: when the first UE performs the D2D communication, measure network signal strength and/or network signal quality of a cell where the first UE is located;

 If the network signal strength of the cell where the first UE is located is lower than the first signal strength threshold, and/or the network signal quality is lower than the first signal quality threshold, the processor is configured according to the cell of each cell where the second UE is located. Identifying, selecting one UE from each of the second UEs as the fourth UE;

 The transmitter is configured to send a first D2D communication resource interface UE change message to the first base station, where the first D2D communication resource interface UE change message carries the group identifier of the D2D communication group, and the D2D communication a user identifier of each UE in the group and a cell identifier of a cell in which the fourth UE is located; to notify the first base station that the fourth UE is used as a communication representative to the first communication resource corresponding to the subsequent D2D communication group Manage; and/or,

The transmitter sends a second D2D communication resource interface UE change message to the fourth UE, where the second D2D communication resource interface UE change message carries the group identifier of the D2D communication group, and each of the D2D communication groups The user identifier of the UE and the cell identifier of the cell where the first UE is located; to notify the fourth UE to manage the first communication resource corresponding to the subsequent D2D communication group by using the same as the communication representative. In a sixth possible implementation manner of the second aspect, the processor, according to the cell identifier of the cell where the second UE is located, from each of the Selecting one UE as the fourth UE from the two UEs includes:

 The processor, according to the cell identifier of the cell where the second UE is located, instructs the sender to send a query request to the second UE in the D2D communication group.

 The processor instructs the receiver to receive a query response returned by the second UE, where the query response carries network signal strength and/or network signal quality of a cell where the second UE is located;

 The processor selects, as the fourth UE, the second UE that has the strongest network signal strength or network signal quality of the cell in the second UE, or the processor from each of the second UEs The second UE, which has the strongest combination of the network signal strength and the network signal quality of one of the two UEs, is selected as the fourth UE.

 With reference to the first aspect, in a seventh possible implementation manner of the first aspect, the first application message further carries a cell identifier of a cell where the second UE is located;

 The processor is further configured to measure network signal strength and/or network signal quality of the cell where the second UE is located according to the cell identifier of the cell where the second UE is located, and use the measurement result from each of the second UEs. Selecting one UE as the fifth UE, and instructing the sender to send the first resource request message to the fifth UE, to notify the fifth UE that the fifth UE is the communication representative to the D2D communication group. The communication resource is managed; and the fifth UE is instructed to forward the first resource request message to the base station to which the cell where the fifth UE belongs, and then request the base station to which the cell in which the fifth UE belongs to allocate the D2D. The communication group executes the communication resource of the D2D communication service corresponding to the service identifier;

 The processor instructs the receiver to receive a communication resource sent by the fifth UE for performing communication by the D2D communication group.

 In conjunction with any one of the first to fourth possible embodiments of the first aspect, in an eighth possible implementation of the first aspect,

 The processor, in the process of performing the D2D communication, measuring network signal strength and/or network signal quality of a cell where the first UE is located and a neighboring cell of the cell where the first UE is located, And reselect or switch to a new cell according to the measurement result;

The processor is further configured to determine, by the base station to which the new cell where the first UE belongs, as the new first base station, and instruct the transmitter to send the D2D communication resource cell to the first base station. a message that the group identifier of the D2D communication group and the user identifier of the first UE are carried in the D2D communication resource cell change message, to notify the first base station that the first UE is in the new cell And continuing to manage, as a communication representative, the communication resource of the subsequent D2D communication group; or, the processor instructing, by the processor, to pass the base station to which the original cell belongs to the new in the reselection or handover process The first base station to which the cell belongs sends the D2D communication resource cell change message, to notify the first base station that the first UE under the new cell continues to be a communication representative to the subsequent D2D communication group. The communication resources are managed.

 In conjunction with any of the first to fourth possible embodiments of the first aspect, in a ninth possible implementation of the first aspect,

 The receiver is further configured to receive, by the first UE, a first resource change message sent by the first base station in the process of performing the D2D communication; the first resource change message carries a first change communication Resource

 The transmitter is further configured to send the first change communication resource carried in the first resource change message to the second UE in the D2D communication group, so that each of the D2D communication groups Determining, by the second UE, the D2D communication service corresponding to the service identifier by using the first change communication resource; and instructing the processor to update a cell identifier of a cell where the first change communication resource is located to the D2D communication group Corresponding to the first cell list.

 In conjunction with the fifth possible implementation of the first aspect, in a tenth possible implementation of the first aspect,

 The receiver is further configured to: after the fourth UE is used as a communication representative to manage the first communication resource corresponding to the D2D communication group, and the first UE is performing the D2D communication Receiving, by the receiver, a second resource change message sent by the fourth UE by using the second resource change message;

 The processor is further configured to perform, by using the second change communication resource, a D2D communication service corresponding to the service identifier.

 In conjunction with the seventh possible implementation of the first aspect, in a first possible implementation of the first aspect,

The receiver is further configured to: after the fifth UE is used as a communication representative to manage the communication resource of the D2D communication group, and the first UE is in the process of performing the D2D communication, Receiving, by the fifth UE, a third resource change message, where the third resource change message carries With the third change communication resources;

 The processor is further configured to perform, by using the third change communication resource, the D2D communication service corresponding to the service identifier.

 According to a twelfth aspect, the embodiment of the present invention provides another user equipment, including:

 a receiver, configured to receive a discovery message sent by the first UE from the wireless network; the discovery message carries a group identifier of the device to the device D2D communication group and a service identifier corresponding to the D2D communication group;

 a transmitter, configured to send a first application message to the first UE according to the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group, where the first application message carries a user identifier of the second UE The first application message is used by the second UE to apply to join the D2D communication group;

 The receiver is further configured to receive, by the first UE, a communication resource that is sent by the D2D communication group to perform communication according to the user identifier of the second UE, and instruct the second UE to use the communication resource. Performing a D2D communication service corresponding to the service identifier.

 With reference to the twelfth aspect, in a first possible implementation manner of the twelfth aspect, the receiver is further configured to receive, by the second UE, the first UE, in the process of performing the D2D communication, And a change communication resource used by the D2D communication group to perform communication, and instructing the second UE to perform the D2D communication service corresponding to the service identifier by using the change communication resource.

 With reference to the twelfth aspect, or the first possible implementation manner of the twelfth aspect, in the second possible implementation manner of the twelfth aspect, the first application message further carries the cell where the second UE is located Cell identity;

 The receiver is further configured to receive, by the second UE, a second D2D communication resource interface UE change message sent by the first UE when the second UE is in a process of performing the D2D communication, where the second D2D communication is performed. The resource interface UE change message carries the group identifier of the D2D communication group, the user identifier of each UE in the D2D communication group, and the cell identifier of the cell where the first UE is located; the fourth UE is the first UE And selecting, according to the cell identifier of the cell where the second UE is located in the D2D communication group, one UE selected from each of the second UEs;

The transmitter is further configured to: when the second UE is the fourth UE, send the second D2D communication resource interface UE change message to a second base station to which the second UE is located, to notify the The second base station is used by the second UE as the fourth UE as a communication representative for the subsequent D2D The communication resources of the communication group are managed.

 With reference to the second possible implementation manner of the twelfth aspect, in a third possible implementation manner of the twelfth aspect, the second UE is the fourth UE in the process of performing the D2D communication Before receiving the second D2D communication resource interface UE change message sent by the first UE, the receiver is configured to receive the query request sent by the first UE;

 The transmitter is configured to return a query response to the first UE, where the query response carries network signal strength and/or network signal quality of a cell where the second UE is located.

 With reference to the second or third possible implementation manner of the twelfth aspect, in a fourth possible implementation manner of the twelfth aspect, the second UE is used as a communication representative to the D2D communication group After the corresponding communication resource is managed, and the second UE is in the process of performing the D2D communication,

 The receiver is further configured to receive a second resource change message sent by the second base station to which the second UE is located, where the second resource change message carries the second change communication resource;

 The transmitter is further configured to send the second change communication resource to each UE in the D2D communication group, to notify each UE to perform the D2D communication service corresponding to the service identifier by using the second change communication resource. .

 In a thirteenth aspect, the embodiment of the present invention provides another user equipment, including:

 a receiver, configured to receive a discovery message sent by the first UE from the wireless network; the discovery message carries a group identifier of the device to the device D2D communication group and a service identifier corresponding to the D2D communication group;

 a transmitter, configured to send a first application message to the first UE according to the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group, where the first application message carries the second UE a user identifier and a cell identifier of a cell where the second UE is located; the first application message is used by the second UE to join the D2D communication group;

 The receiver, when the second UE is used as the fifth UE, receives the first resource request message sent by the first UE, where the first resource request message carries the group identifier of the D2D communication group and a user identifier of each UE in the D2D communication group, to notify the fifth UE to manage the communication resource of the D2D communication group as a communication representative; the fifth UE is the first UE according to the first UE a cell identifier of a cell in which the second UE is located, and a UE selected from each of the second UEs;

The transmitter is further configured to: when the second UE is the fifth UE, to the second UE Forwarding, by the second base station to which the cell belongs, the first resource request message, to request the second base station to allocate a communication resource for performing, by the D2D communication group, the D2D communication service corresponding to the service identifier; And receiving, by the second UE, the first resource response message sent by the second base station, where the second resource response message carries a communication resource used by the D2D communication group to perform communication. The communication resource is determined by the second base station according to the group identifier of the D2D communication group and the network resource condition of each cell in the current second base station; or, the communication resource is the second base station according to the The group identifier of the D2D communication group is determined after being negotiated by a base station adjacent to the second base station;

 The transmitter is further configured to send, when the second UE is the fifth UE, to the UEs in the D2D communication group to perform the D2D communication group according to user identifiers of UEs in the D2D communication group. And a communication resource of the communication, to notify each of the UEs to perform the D2D communication service corresponding to the service identifier by using the communication resource.

 In conjunction with the thirteenth aspect, in a first possible implementation manner of the thirteenth aspect, the first resource response message further includes a cell list, where the cell list includes a cell identifier corresponding to the at least one cell, where the cell The list is used to indicate a cell in which the D2D communication group performs the communication to utilize the reserved resource; the cell list is determined by the second base station, or the cell list is the second base station in the pass and the The base stations adjacent to the second base station are jointly negotiated and determined.

 In conjunction with the thirteenth aspect or the first possible implementation of the thirteenth aspect, in a second possible implementation of the thirteenth aspect,

 The receiver is further configured to receive a third resource change message sent by the second base station to which the cell where the fifth UE is located, where the third resource change message carries a third change communication resource; And the third change communication resource is sent to each UE in the D2D communication group, to notify each UE to perform the D2D communication service corresponding to the service identifier by using the third change communication resource.

 According to a fourteenth aspect, an embodiment of the present invention provides a base station, including:

 a receiver, configured to receive a first resource request message sent by the first UE, where the first UE is in a range of cells covered by the first base station, and the first resource request message carries a group identifier of a D2D communication group;

a processor, configured to determine, according to a group identifier of the D2D communication group and a network resource condition of each cell under the first base station, a first communication resource used for performing communication by the D2D communication group; or Determining, by the processor, the first communication resource after being negotiated by a base station adjacent to the first base station according to the group identifier of the D2D communication group;

 And a transmitter, configured to send, to the first UE, a first resource response message, where the first resource response message carries the first communication resource used by the D2D communication group to perform communication.

 In conjunction with the fourteenth aspect, in a first possible implementation manner of the fourteenth aspect, the first resource response message further includes a first cell list, where the first cell list includes a cell identifier corresponding to the at least one cell The first cell list is used to indicate a cell where the first reserved resource used by the D2D communication group to perform communication; the first cell list is determined by the processor, or the first cell list is And determining, by the processor, the base station adjacent to the first base station.

 In conjunction with the first possible implementation of the fourteenth aspect, in a second possible implementation of the fourteenth aspect,

 The receiver is further configured to receive a second resource request message sent by the first UE, where the second resource request message carries a group identifier of the D2D communication group and a cell identifier of a cell where the third UE is located, where The cell identifier of the cell where the third UE is located is not included in the first cell list;

 The processor is further configured to redistribute the D2D communication group according to a cell identifier of a cell where the third UE is located, a group identifier of the D2D communication group, and a network resource condition of each cell in the current first base station. And the processor is configured to be the D2D communication group after being negotiated by the base station adjacent to the first base station according to the cell identifier of the cell where the third UE is located and the group identifier of the D2D communication group. Redistributing the communication resources;

 The transmitter is further configured to send a second resource response message to the first UE, where the second resource response message carries the communication resource and the second cell list that are re-allocated for the D2D communication group; The second cell list includes a cell identifier of a cell where the third UE is located.

 In conjunction with the fourteenth aspect or the first or second possible implementation of the fourteenth aspect, in a third possible implementation of the fourteenth aspect,

The receiver is further configured to receive a first D2D communication resource interface UE change message sent by the first UE, where the first D2D communication resource interface UE change message carries the group identifier of the D2D communication group, and the a user identifier of each UE in the D2D communication group and a cell identifier of a cell where the fourth UE is located; the first D2D communication resource interface UE change message is used to notify the first base station that the fourth UE is used as a communication representative to the subsequent station The first communication resource corresponding to the D2D communication group is managed; The transmitter is further configured to send, according to the cell identifier of the cell where the fourth UE is located, the first D2D communication resource interface UE change message to the base station to which the fourth UE is located, to notify the fourth The base station to which the UE is located is managed by the fourth UE as a communication representative for the communication resources of the subsequent D2D communication group; or

 Receiving, by the receiver, the second D2D communication resource interface UE change message sent by the fourth UE that is sent by the base station to which the fourth UE belongs, and the second D2D communication resource interface UE change message carrying the D2D a group identifier of the communication group, a user identifier of the fourth UE, and a cell identifier of a cell where the fourth UE is located, so that the first base station learns that the fourth UE is used as a communication representative to the subsequent D2D communication group. The communication resources are managed.

 In conjunction with the fourteenth aspect or the first or second possible implementation of the fourteenth aspect, in a fourth possible implementation of the fourteenth aspect,

 The receiver is further configured to receive, by the third base station, a D2D communication resource cell change message that is sent by the first UE, where the D2D communication resource cell change message carries the group identifier of the D2D communication group and the a user identifier of a UE, so that the first base station learns that the first UE under the third base station continues to be a communication representative to manage the communication resource of the subsequent D2D communication group.

 In a fourth possible implementation manner of the fourteenth aspect, the first UE is performing the D2D communication. In the process,

 The transmitter is further configured to send a first resource change message to the first UE, where the first resource change message carries the changed first communication resource, so that the first UE changes the first Sending information of a communication resource to each UE in the D2D communication group to notify each UE to perform the service of the D2D communication by using the changed first communication resource; and instructing the first UE to The cell identifier of the cell in which the first change communication resource is located is updated to the first cell list corresponding to the D2D communication group.

 In a fifteenth aspect, the embodiment of the present invention provides another base station, including:

Receiving, by the receiver, a first resource request message sent by the first UE that is sent by the second UE; the second UE is within a cell coverage area of the second base station; and the first resource request message carries the D2D communication group The first resource request message is used by the first UE to apply for a communication resource for the D2D communication group in which the first UE is located; a processor, configured to determine a communication resource used for communication by the D2D communication group according to a group identifier of the D2D communication group and a network resource condition of each cell under the current second base station; or, the processor according to the Determining, by the base station adjacent to the second base station, the communication resource after determining the group identity of the D2D communication group;

 And a transmitter, configured to send, to the second UE, a first resource response message, where the first resource response message carries the communication resource used by the D2D communication group to perform communication.

 With the fifteenth aspect, in a first possible implementation manner of the fifteenth aspect, the first resource response message further includes a cell list, where the cell list includes a cell identifier corresponding to the at least one cell, where the cell The list is used to indicate a cell in which the D2D communication group performs the communication to utilize the reserved resource; the cell list is determined by the processor, or the cell list is the processor and the second base station The neighboring base stations are determined after mutual negotiation.

 In a sixteenth aspect, the embodiment of the present invention provides a system, where the system includes the user equipment provided by the sixth aspect, the user equipment provided by the seventh aspect, and the user equipment provided by the eighth aspect, where the ninth aspect provides The base station and the base station provided by the tenth aspect.

 The seventeenth aspect, the embodiment of the present invention provides another system, where the system includes the user equipment provided by the eleventh aspect of the present invention, the user equipment provided by the twelfth aspect, and the user equipment provided by the thirteenth aspect, The base station provided in the fourteenth aspect and the base station provided in the fifteenth aspect.

The communication resource management method, the user equipment, the base station, and the system provided by the present invention, the first user equipment UE sends a discovery message to the at least one second UE in the wireless network, where the discovery message is used to indicate the first The UE supports the device-to-device D2D communication service; the discovery message carries the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group; the first UE receives the first application message sent by the second UE, and the first application The message carries the user identifier of the second UE; the first application message is used by the second UE to join the D2D communication group; and the first UE acquires the D2D according to the first application message sent by the second UE. The communication group performs the communication resource of the communication; the first UE sends the communication resource for performing the communication by the D2D communication group to the second UE in the D2D communication group according to the user identifier of the second UE, to notify the D2D communication Each UE in the group performs the D2D communication service corresponding to the service identifier by using the foregoing communication resource. The solution provides a set of solutions that enable D2D communication to proceed smoothly and reduce or avoid interference with cellular communications. DRAWINGS

 In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

 FIG. 1 is a flowchart of a communication resource management method according to an embodiment of the present invention;

 2 is a flowchart of a communication resource management method according to another embodiment of the present invention; FIG. 3 is a flowchart of a communication resource management method according to still another embodiment of the present invention; FIG. 4 is a communication according to still another embodiment of the present invention. FIG. 5 is a flowchart of a communication resource management method according to still another embodiment of the present invention; FIG. 6 is a flowchart of a communication resource management method according to still another embodiment of the present invention; A flowchart of a communication resource management method provided by another embodiment; FIG. 8 is a flowchart of a communication resource management method according to still another embodiment of the present invention; FIG. 9 is a flowchart of a communication resource management method according to still another embodiment of the present invention. Figure 10 is a schematic structural diagram of an apparatus according to an embodiment of the present invention;

 FIG. 11 is a schematic structural diagram of a device according to another embodiment of the present invention;

 FIG. 12 is a schematic structural diagram of a device according to still another embodiment of the present invention;

 FIG. 13 is a schematic structural diagram of a device according to still another embodiment of the present invention;

 FIG. 14 is a schematic structural diagram of a device according to still another embodiment of the present invention;

 FIG. 15 is a schematic structural diagram of a device according to still another embodiment of the present invention;

 16 is a schematic structural diagram of a device according to another embodiment of the present invention;

 FIG. 17 is a schematic structural diagram of a device according to still another embodiment of the present invention;

 FIG. 18 is a schematic structural diagram of a device according to still another embodiment of the present invention;

 FIG. 19 is a schematic structural diagram of a device according to still another embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the present invention. The techniques described herein can be used in a variety of communication systems, such as current 2G, 3G communication systems and next generation communication systems, such as Global System for Mobile Communications (GSM), Code Division Multiple Access (CDMA, Code Division Multiple). Access system, time division multiple access (TDMA, Time Division Multiple Access) system, Wideband Code Division Multiple Access (WCDMA), Frequency Division Multiple Access (FDMA), Frequency Division Multiple Addressing system, Orthogonal Frequency OFDMA (Orthogonal Frequency-Division Multiple Access) system, single carrier FDMA (SC-FDMA) system, General Packet Radio Service (GPRS) system, Long Term Evolution (LTE) system, And other such communication systems.

 The user equipment referred to in this application may be a wireless terminal, which is a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or other processing device connected to the wireless modem. The wireless terminal can communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and with a mobile terminal The computers, for example, can be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices that exchange language and/or data with the wireless access network. For example, Personal Communication Service (PCS), Cordless Phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), etc. . A wireless terminal may also be called a system, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, an Access Point, Remote Terminal Access Terminal, User Terminal, User Agent, User Device, or User Equipment.

A base station (e.g., an access point) referred to in this application may refer to a device in an access network that communicates with a wireless terminal over one or more sectors over an air interface. The base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network. The base station can also coordinate attribute management of the air interface. For example, the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be LTE. The evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) is not limited in this application.

 FIG. 1 is a flowchart of a communication resource management method according to an embodiment of the present invention. The execution body of the method is a user equipment that initiates D2D communication. For each user equipment UE participating in the communication service in a certain D2D communication group, it is specified that the UE that initiated the establishment of the D2D communication group is the first UE; the other UEs that receive the discovery message of the first UE and apply to join the D2D communication group are For the second UE, it is obvious that the number of the second UEs may be one or more. As shown in FIG. 1, the communication resource management method specifically includes:

 The first user equipment UE sends a discovery message to the at least one second UE in the wireless network, where the discovery message is used to indicate to the at least one second UE that the first UE supports the device to the device D2D communication service; the discovery message carries the D2D The group identifier of the communication group and the service identifier corresponding to the D2D communication group; the first user equipment UE in the wireless network may send a discovery message to the wireless network to initiate a D2D communication service and form a D2D communication group corresponding to the D2D communication service. . The one or more second UEs in the wireless network learn that the first UE supports the device to the device D2D communication service and wants to establish a D2D communication group by receiving the discovery message sent by the first UE. The discovery message carries the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group; wherein the group identifier of the D2D communication group as the identifier information that uniquely identifies the D2D communication group may be a group address (Group ID) The group ID may be string information composed of numbers or letters, etc.; the service identifier corresponding to the D2D communication group may be a type of service corresponding to the D2D communication service, such as voice service, data service, Internet service, download Service, high-priority service, and low-priority service; or service quality of service (QoS) requirements, such as delay requirements, packet loss rate requirements, bandwidth or rate requirements, etc.; or characteristics of services, Such as packet size, packet arrival interval, etc.; or the billing method of the service.

 The resource used by the first UE to send the discovery message and the sending manner may be allocated by the cell where the first UE is located, for example, by using a broadcast message or a dedicated message; or may be a fixed resource and a method for sending and receiving information, the fixed The resource is a fixed communication resource reserved for the UE that initiates the D2D communication service in the network. When the first UE does not belong to any cell, the first UE that wants to establish the D2D communication service can use the fixed resource of the protocol and send and receive. The information method sends the above discovery message.

The first UE receives the first application message sent by the second UE, where the first application message carries the user identifier of the second UE. The first application message is used by the second UE to join the D2D communication group. The one or more second UEs in the wireless network learn the D2D communication group that the first UE wants to establish by receiving the discovery message sent by the first UE, and determine whether to join the D2D according to the group identifier and the service identifier in the discovery message. Communication group. The second UE sends a first application message carrying the user identifier to the first UE to inform the first UE that the second UE applies to join the D2D communication group. The user identifier corresponding to the second UE may be a Temporary Mobile Subscriber Identity (TMSI), an International Mobile Equipment Identity (IMEI), or a random number generated by the second UE. , here is not limited. The user identifier of the second UE is used to identify the second UE in the process of the D2D group communication. The first UE organizes and manages each second UE according to the received user identifier included in the first application message sent by each second UE.

 5103. The first UE acquires a communication resource used by the D2D communication group to perform communication according to the first application message sent by the second UE.

 The first UE determines, according to the sending situation that the second UE sends the first application message, the number of UEs that apply to join the D2D communication group, and the amount of communication resources required, and obtains, for example, from existing network resources. The communication resource that the D2D communication group performs communication, and the communication resource may specifically be information such as bandwidth information, resource size, and rate. The manner in which the first UE acquires the communication resource that the D2D communication group communicates from the existing network resource may be obtained by the first UE from the base station to which the cell where the first UE belongs, or may be the cell to which the second UE belongs. Other base station acquisition; the process of obtaining may be by sending a Radio Resource Control (RRC) message, or a Media Access Control (MAC) layer message, or a Physical Layer (PHY) message. carry out.

 Optionally, if the foregoing first application message further carries requirements for communication resources used by the second UE in the D2D communication process, such as resource size, bandwidth requirement, and rate requirement, the first UE is in the network. The process of obtaining D2D communication resources by the side must consider these factors to ensure that the best communication resources are obtained for communication by each UE in the above D2D communication group.

 The first UE sends a communication resource for performing communication by the D2D communication group to the second UE in the D2D communication group according to the user identifier of the second UE, to notify each UE in the D2D communication group to perform service identifier correspondence by using the communication resource. D2D communication service;

After the first UE acquires the communication resources for performing the communication by the D2D communication group from the existing network resources, the first UE sends the foregoing information to each second UE according to the user identifiers of the second UEs that have been learned. The communication resource for communicating in the D2D communication group, the sending process may be sent by, for example, a broadcast message or a dedicated message; or may be sent by means of a protocol fixed resource (in this case, the first UE does not belong to any cell) Each UE in the D2D communication group performs the D2D communication service corresponding to the service identifier by using the communication resource.

 The communication resource management method provided by the present invention, the first user equipment UE sends a discovery message to at least one second UE in the wireless network, where the discovery message is used to indicate to the at least one second UE that the first UE supports the device to the device D2D communication. The foregoing discovery message carries the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group; the first UE receives the first application message sent by the second UE, and the first application message carries the second UE. The first application message is used by the second UE to join the D2D communication group; the first UE acquires a communication resource used by the D2D communication group to perform communication according to the first application message sent by the second UE. Transmitting, by the first UE, the communication resource for performing the communication by the D2D communication group to the second UE in the D2D communication group according to the user identifier of the second UE, to notify each UE in the D2D communication group to use the communication The resource performs the D2D communication service corresponding to the foregoing service identifier. The solution provides a technical solution that enables D2D communication to proceed smoothly and reduces or avoids interference with cellular communications.

 FIG. 2 is a flowchart of a communication resource management method according to another embodiment of the present invention. For each user equipment UE participating in the communication service in a certain D2D communication group, it is provided that the UE that initiated the establishment of the D2D communication group is the first UE; the other UEs that receive the discovery message of the first UE and apply to join the D2D communication group are The second UE, obviously, the number of the second UEs may be one or more. The execution body of the method shown in this embodiment is a second UE in the above D2D communication group. As shown in FIG. 2, the communication resource management method specifically includes:

 S201: The second user equipment receives a discovery message sent by the first UE from the wireless network, where the discovery message carries a group identifier of the device to the device D2D communication group and a service identifier corresponding to the D2D communication group.

The first user equipment UE in the wireless network may send a discovery message to the wireless network to initiate a D2D communication service and form a D2D communication group corresponding to the D2D communication service. The one or more second UEs in the wireless network learn the D2D communication group that the first UE wants to establish by receiving the discovery message sent by the first UE. The discovery message carries the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group; wherein the group identifier of the D2D communication group is uniquely identified. The identification information of the D2D communication group may be a group ID, and the group ID may be string information composed of numbers or letters, etc., and the service identifier corresponding to the D2D communication group may be a type of service corresponding to the D2D communication service, such as voice. Services, data services, Internet services, download services, high-priority services, and low-priority services; or QoS requirements of services, such as delay requirements, packet loss rate requirements, bandwidth or rate requirements, etc.; or characteristics of services , such as packet size, packet arrival interval, etc.; or the billing method of the service.

 The resource and the sending manner used by the first UE to send the discovery message may be allocated by the cell where the first UE is located, for example, by using a broadcast message or a dedicated message; or may be a fixed resource and a method for sending and receiving information, the fixed The resource is a fixed communication resource reserved for the UE that initiates the D2D communication service in the network. When the first UE does not belong to any one of the cells, the first UE that wants to establish the D2D communication service can use the fixed resource of the protocol and send and receive. The information method sends the above discovery message.

 5202. The second UE sends a first application message to the first UE according to the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group, where the first application message carries the user identifier of the second UE. Applying to join the D2D communication group in the second UE;

 The one or more second UEs in the wireless network learn the D2D communication group that the first UE wants to establish by receiving the discovery message sent by the first UE, and determine whether to join the D2D according to the group identifier and the service identifier in the discovery message. Communication group. The second UE informs the first UE to apply to join the D2D communication group by transmitting a first application message carrying the user identifier to the first UE. The user identifier corresponding to the second UE may be a TMSI, an IMEI, or a random number generated by the second UE, and is not limited herein. The user identifier of the second UE is used to identify the second UE in the process of the D2D group communication.

 Optionally, in the foregoing first application message, the requirements of the communication resources used by the second UE in the D2D communication process, such as the resource size, the bandwidth requirement, and the rate requirement, may be carried, so that the first UE is in the following direction. The process of acquiring D2D communication resources by the network side must consider these factors to ensure that the best communication resources are obtained for communication by each UE in the above D2D communication group.

 The second UE receives the communication resource that is sent by the first UE according to the user identifier of the second UE and performs communication for the D2D communication group, and uses the communication resource to perform the D2D communication service corresponding to the service identifier.

After receiving the first application message sent by each second UE, the first UE receives the first application message according to the first application message. The information about the communication resources used for communication by the D2D communication group is obtained in the existing network. For the process, refer to the corresponding content of step 103.

 After the first UE acquires the communication resource for the communication by the D2D communication group from the existing network, the first UE sends the acquired communication for the D2D communication group to each second UE according to the user identifier of each second UE that has been learned. The communication resource may be sent by, for example, a broadcast message or a dedicated message; or may be a fixed resource of the protocol and a method of transmitting and receiving information (in this case, the first UE does not belong to any cell), and the second UE receives the first UE. After the communication resource for the D2D communication group to communicate according to the user identifier of the second UE, the communication resource is used to execute the D2D communication service corresponding to the service identifier.

 The communication resource management method provided by the present invention, the second user equipment UE receives the discovery message sent by the first UE from the wireless network; the discovery message carries the group identifier of the device to the device D2D communication group and the service identifier corresponding to the D2D communication group. The second UE sends a first application message to the first UE according to the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group, where the first application message carries the user identifier of the second UE; An application message is used by the second UE to join the D2D communication group, and the second UE receives the communication resource that is sent by the first UE according to the user identifier of the second UE for performing the communication by using the D2D communication group, and uses the foregoing The communication resource performs the D2D communication service corresponding to the service identifier. The solution provides a technical solution that allows D2D communication to proceed smoothly and reduces or avoids interference with cellular communications.

In the communication resource management method shown in FIG. 1, the first UE sends a discovery message to at least one second UE in the wireless network, and obtains the information from the existing network according to the first application message sent by each second UE. When the D2D communication group performs the communication resource of the communication, the first UE currently has two network states, one is that the first UE is currently connected to a certain cell, and the other is that the first UE is currently not connected. For the former case, the first UE may send the request information for acquiring the communication resource to the base station to which the current access cell belongs, and request the base station to allocate the communication resource for the D2D communication group; In this case, the first UE does not currently access any of the cells, and therefore cannot directly obtain the communication resource by sending the resource request information to the corresponding base station. In this case, the first UE may forward the resource request information by using other second UEs. The way to obtain the communication resources required by the above D2D communication group from the existing network. FIG. 3 is a flowchart of a communication resource management method according to still another embodiment of the present invention. This embodiment is the foregoing first UE pass. The communication resource required by the foregoing D2D communication group is obtained by the foregoing second UE. As shown in FIG. 3, the communication resource management method includes:

 The second user equipment UE receives the discovery message sent by the first UE from the wireless network. The discovery message carries the group identifier of the device to the device D2D communication group and the service identifier corresponding to the D2D communication group. See the corresponding content in step 201.

 The second UE sends a first application message to the first UE according to the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group, where the first application message carries the user identifier of the second UE and the cell where the second UE is located. The cell identifier is used by the second UE to join the D2D communication group. For the specific execution process, refer to the corresponding content of step 202.

 Specifically, the method is different from the step 202, where the first application message in the step further carries the cell identifier of the cell where the second UE is located, and the cell identifier may be a physical-layer cell identity (PCI) or The Evolved Cell Global Identifier (ECGI) and the like are not limited herein. If the current second UE does not access any cell, the corresponding cell identifier in the returned first application message is empty, or is replaced by a special character, that is, the second UE does not currently access any cell.

 The first UE can determine the current network of each second UE by measuring the network signal strength of the corresponding cell and the network signal quality by determining the cell identifier of the cell in which the second UE is currently located in the first application message returned by the second UE. Connection situation.

 Optionally, after the first UE receives the first application message sent by each second UE, the first UE may further send a message confirming joining the D2D communication group to the corresponding second UE.

 5303. The second UE receives, as the fifth UE, a first resource request message sent by the first UE, where the first resource request message carries a group identifier of the D2D communication group and a user identifier of each UE in the D2D communication group, to notify the fifth The UE is configured as a communication representative to manage the communication resources of the D2D communication group; the fifth UE is one UE selected by the first UE according to the cell identifier of the cell where each second UE is located;

If the first UE that initiates the foregoing D2D communication service does not currently access any of the cells, that is, the first UE does not have a base station corresponding to the network to which the access cell belongs, the first UE cannot directly send from the corresponding base station. The above communication resources are obtained by means of resource request information and the like. At this time, the first UE may apply for communication resources required by the D2D communication group to the existing network through other UEs. The specific method is: the first UE may be based on the received cell identification letter in the first application message returned by each second UE. Obtaining information about the current network access cell of each second UE, and comparing and comparing the network (network speed, network bandwidth, load, network resource usage, etc.) of each second UE currently accessing the cell from each second UE by measuring and comparing Selecting one UE as the fifth UE, and sending a first resource request message to the fifth UE by using the fixed resource and the sending and receiving information in the foregoing protocol, where the first resource request message carries the group identifier of the D2D communication group and the D2D A user identifier of each UE in the communication group to notify the fifth UE to manage the communication resources of the D2D communication group by using it as a communication representative. In a D2D communication group, the specific content of the communication representative for managing the above communication resources mainly involves two aspects: on the one hand, receiving communication resource configuration or update information for the D2D communication group on the network side, and transmitting it to other groups in the communication group in time Each UE enables the UEs in the communication group to use the available communication resources for D2D communication in time; on the other hand, when the D2D communication group needs to apply for or change the communication resources (such as the handover/exit of the access cell in the communication group) If there is a new UE to access the communication group, the network is actively requested to newly allocate or redistribute the communication resources applicable to the current D2D communication group.

 Optionally, the foregoing first resource request message may further carry the identifier of the cell where the UE is located in the D2D communication group, the service identifier corresponding to the D2D communication group, and the requested resource size, such as bandwidth requirement, rate requirement, and the like.

 The second UE that is the fifth UE forwards the first resource request message to the second base station to which the cell is located, to request the second base station to allocate the communication resource for the D2D communication service corresponding to the D2D communication group to perform the service identifier. After receiving the first resource request message by the first UE, the fifth UE serves as a communication representative for managing the communication resource of the D2D communication group, and forwards the first resource request message to the second base station to which the access cell belongs.

 The second UE that is the fifth UE receives the first resource response message sent by the second base station, where the first resource response message carries the communication resource used for performing communication by the D2D communication group; the communication resource is the second base station according to the D2D. The group identifier of the communication group and the network resource condition of each cell under the current second base station are determined; or, the communication resource is determined by the second base station according to the group identifier of the D2D communication group after being negotiated by the base station adjacent to the second base station. come out;

 After receiving the first resource request message sent by the fifth UE, the second base station detects the current network load condition, the physical time frequency code of the current network, and the usage of the specific physical resource block PRB. The current network resource usage is known according to the detected result, and the available communication resources are allocated for the D2D group communication in combination with the first resource request.

Specifically, the second base station may be based on the group identifier of the D2D communication group and the current network of each cell under it The network resource situation directly allocates communication resources to the D2D communication group; this allocation method is applicable to each cell in the D2D communication group, which is located in the same network node, that is, each cell under the same base station (including UEs that do not access any cell); However, when the number of UEs in the D2D communication group is large and is located in different network nodes, that is, in different cells of different base stations, the second base station needs to negotiate with the base station to which the other UEs in the D2D communication group belong. Coordinating the communication resources available to the D2D communication group, and in general, the base stations to which the other UEs in the D2D communication group belong are the geographically adjacent base stations of the second base station. For example, the common negotiation process may be that the second base station sends a D2D communication group available resource negotiation request message to the other corresponding base stations, where the request message carries the communication resource set temporarily allocated by the second base station to the D2D communication group; After the communication resource is set, the D2D communication group available resource negotiation confirmation message is sent to the second base station, where the acknowledgment message carries the other neighboring base station selected in the foregoing communication resource set and is applicable to the D2D communication group for allocation by the base station. a communication resource subset of the communication service; the second base station finally determines a communication resource used for performing communication by the D2D communication group by summarizing the communication resource subsets sent by the neighboring base stations.

 For example, the available resource negotiation request message sent by the second base station includes:

 PRB 1 -PRB 10 can be used for the D2D communication group;

 The current D2D group communication requires a total of 2 PRBs (bandwidth or rate requirements);

 Other base stations reply to the available resource negotiation confirmation message including:

 PRB0 2 can be used for this D2D group communication (where PRB0 2 is a subset of PRB1~PRB10). The common negotiation process of the foregoing resources may be performed by each base station through an X2 link interface, or may be performed by a core network node through an S1 link interface. Needless to say here. The communication resources for the D2D communication group are finally determined by the second base station through the above negotiation process.

 Optionally, in the foregoing common negotiation process, the group identifier of the D2D communication group, the user identifier of each UE, the cell identifier of each UE, and the QoS parameters, network rate, bandwidth, and resources of the communication resources required by each UE are also considered. Parameters such as size. These parameters are also used as factors in determining the final communication resources in a specific joint negotiation process.

The second base station returns the information of the communication resource allocated to the D2D communication group to the fifth UE by using the first resource response message, where the first resource response message may be an RRC message, a MAC layer message, or a PHY message; The RRC message, the foregoing first resource response message may be a newly added RRC message, or may be an existing RRC message, such as an RRC connection reconfiguration message. The message formed after the new IE unit information is added, the newly added IE unit information is the information for the communication resource of the D2D communication group.

 S306. The second UE that is the fifth UE sends communication resources for performing communication by the D2D communication group to each UE in the D2D communication group according to the user identifier of each UE in the D2D communication group, to notify each UE to perform service identification by using the communication resource. Corresponding D2D communication service;

 After acquiring the communication resource for performing the communication by the D2D communication group, the fifth UE sends the acquired communication for the D2D communication group to each second UE according to the user identifier of each second UE that has been learned. The communication resource may be sent by, for example, a broadcast message or a dedicated message; or may be sent by a protocol fixed resource (in this case, the first UE does not belong to any cell) and sent to notify each of the D2D communication groups. The UE performs the D2D communication service corresponding to the service identifier by using the foregoing communication resource.

 Optionally, the fifth UE may further send the communication resource that performs communication by the D2D communication group to the first UE, and then forward the resource fixed by the first UE to the other second UE in the D2D communication group by using the fixed resource.

The communication resource management method provided by the present invention, the second user equipment UE receives the discovery message sent by the first UE from the wireless network; the discovery message carries the group identifier of the device to the device D2D communication group and the service identifier corresponding to the D2D communication group. The second UE sends a first application message to the first UE according to the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group, where the first application message carries the user identifier of the second UE and the foregoing The first application message is used by the second UE to join the D2D communication group, and the second UE is used as the fifth UE to receive the first resource request message sent by the first UE, where the first The resource request message carries the group identifier of the D2D communication group and the user identifier of each UE in the D2D communication group, to notify the fifth UE to manage the communication resource of the D2D communication group by using the fifth UE as a communication representative; The UE is one UE selected by each of the foregoing second UEs according to a cell identifier of a cell in which the second UE is located by the first UE; The second UE of the five UEs forwards the first resource request message to the second base station to which the cell to which the cell belongs, to request the second base station to allocate a communication resource for the D2D communication group to perform the D2D communication service corresponding to the service identifier. The second UE that is the fifth UE receives the first resource response message that is sent by the second base station, where the first resource response message carries a communication resource used for performing communication by the D2D communication group; the communication resource is the foregoing Two base stations according to the above D2D pass And determining, by the second base station, the base station adjacent to the second base station according to the group identifier of the D2D communication group. And determining, by the second UE, the second UE as the fifth UE, according to the user identifier of each UE in the D2D communication group, sending, to each UE in the D2D communication group, a communication resource for performing communication by using the D2D communication group, to notify Each of the foregoing UEs uses the communication resource to perform a D2D communication service corresponding to the service identifier. The solution provides a solution that allows D2D communication to proceed smoothly and reduces or avoids interference with cellular communications.

 In the communication resource management method shown in FIG. 1 , when the first UE acquires information about a communication resource used for communication by the D2D communication group from the active network according to the first application message sent by the second UE, The method is as follows: one is obtained by the first UE from the base station to which the cell where the first UE belongs; the other is obtained by the first UE from the other base station to which the second UE belongs; for the two cases, the present invention is The following two embodiments are used to specifically describe the execution process.

 FIG. 4 is a flowchart of a communication resource management method according to another embodiment of the present invention; the method is configured to acquire, by the first UE, a communication resource that is communicated by a D2D communication group from a base station to which the first UE belongs. The base station to which the UE is located, that is, the first base station in the foregoing embodiment is the execution entity, and the process of the communication resource management method in the scenario is specifically described. As shown in FIG. 4, the communication resource management method specifically includes:

 S401: The first base station receives the first resource request message sent by the first UE, where the first UE is in the cell coverage area of the first base station, and the first resource request message carries the group identifier of the D2D communication group.

 After the first UE successfully initiates the D2D communication service through the steps 101-102, if the current first UE has the serving cell, the first UE sends a first resource request message to the first base station to which the cell to which the cell belongs, the first resource. The request message carries the group identifier of the D2D communication group to request the first base station to allocate communication resources for the D2D communication group.

S402, the first base station determines, according to the group identifier of the D2D communication group and the network resource condition of each cell under the current first base station, the first communication resource used for performing communication by the D2D communication group; or the first base station according to the group identifier of the D2D communication group. Determining the first communication resource after the negotiation with the base station adjacent to the first base station; the specific execution process of the step may be performed in step 305, the second base station according to the group identifier of the D2D communication group and the current second base station The network resource condition of the cell; or, the second base station determines to use according to the group identifier of the D2D communication group after being mutually negotiated by the base station adjacent to the second base station The corresponding content of the communication resource for performing communication by the D2D communication group is not described herein.

 S403. The first base station sends a first resource response message to the first UE, where the first resource response message carries the first communication resource used for performing communication by the D2D communication group. For the specific execution process, refer to step 305. The second base station returns the determined communication resource for the D2D communication group to the corresponding content of the fifth UE by using the first resource response message, and details are not described herein.

 The communication resource management method provided by the present invention, the first base station receives the first resource request message sent by the first UE, where the first UE is in the cell coverage area of the first base station, and the first resource request message carries the D2D communication group. The first base station determines, according to the group identifier of the D2D communication group and the network resource condition of each of the cells in the first base station, the first communication resource used for performing communication by the D2D communication group; or, the foregoing first base station Determining, by the group identifier of the D2D communication group, the first communication resource after being negotiated by the base station adjacent to the first base station; the first base station sending a first resource response message to the first UE, where the first resource response is The message carries the first communication resource for performing communication in the D2D communication group. The solution provides a technical solution that allows D2D communication to proceed smoothly and reduces or avoids interference with cellular communications.

 FIG. 5 is a flowchart of a communication resource management method according to another embodiment of the present invention; the method is configured to acquire, by the first UE, a communication resource that is communicated by a D2D communication group from another base station to which the second UE belongs. The base station to which the second UE is located (that is, the second base station in the embodiment shown in FIG. 3) is an execution subject, and the process steps of the foregoing communication resource management method in the scenario are specifically described. As shown in FIG. 5, the communication resource is shown in FIG. The management method specifically includes:

 S501. The second base station receives a first resource request message that is sent by the second UE and is sent by the second UE. The second UE is in a cell range that is covered by the second base station. The first resource request message carries the D2D communication group. The first resource request message is used by the first UE to apply for a communication resource for the D2D communication group in which the first UE is located;

After the first UE successfully initiates the D2D communication service through the step 101 102, if the current first UE does not have the serving cell, that is, the first UE does not have the base station corresponding to the network to which the access cell belongs, the first UE cannot directly The corresponding base station acquires communication resources by sending resource request information and the like. At this time, the first UE may apply for the communication resources required by the D2D communication group from the existing network by using the other second UE, and in this step, the second UE is configured according to the group identifier of the D2D communication group. And the service identifier corresponding to the D2D communication group returns the first application message to the first UE. In addition to the user identifier of the second UE, the cell identifier of the cell where the second UE is located is also carried, that is, step 302. The specific method is: the first UE learns the current network access cell of each second UE according to the cell identity information in the first application message returned by each second UE received in step 302, and compares and compares each second UE by measurement. The current situation of the network of the accessing cell (network speed, network bandwidth, load, network resource usage, etc.) selects one UE from each of the second UEs as the fifth UE (the fifth UE is the second in this embodiment) Transmitting, by the UE, the first resource request message to the fifth UE by using the fixed resource and the sending and receiving information in the foregoing protocol, where the first resource request message carries the group identifier of the D2D communication group and each UE in the D2D communication group The user identifier is used to notify the fifth UE that the communication resources of the D2D communication group are to be managed by the fifth UE as a communication representative. After receiving the first resource request message sent by the first UE, the fifth UE forwards the message to the second base station to which the cell where the fifth UE belongs, to request the second base station to allocate communication resources for communication to the D2D communication group.

 S502, the second base station determines, according to the group identifier of the D2D communication group and the network resource condition of each cell under the current second base station, a communication resource used for communication by the D2D communication group; or, the second base station passes the group identifier according to the D2D communication group. The communication resource is determined by the base station adjacent to the second base station. The specific implementation process can be referred to the corresponding content in step 305.

 The second base station sends a first resource response message to the second UE, where the first resource response message carries a communication resource for performing communication by the D2D communication group. For the specific execution process, refer to step 305 in the second base station. The information of the communication resource allocated for the D2D communication group is transmitted to the corresponding content of the fifth UE through the first resource response message. After receiving the communication resource for performing the communication by the D2D communication group, the second UE sends the communication resource to the first UE to forward the first UE to other UEs in the D2D communication group, or the second UE directly The acquired communication resources are sent to each UE in the D2D communication group to notify each UE to perform communication using the corresponding communication resource.

The communication resource management method provided by the present invention, the second base station receives the first resource request message sent by the second UE and is sent by the second UE; the second UE is within the cell coverage area of the second base station; The message carries the group identifier of the D2D communication group; the first resource request message is used by the first UE to apply for a communication resource for the D2D communication group in which the first UE is located; and the second base station is configured according to the group identifier of the D2D communication group and the current The network resource situation of each cell in the second base station determines a communication resource used for communication by the D2D communication group; or, the second base station negotiates with the base station adjacent to the second base station according to the group identifier of the D2D communication group. Determining the foregoing communication resource; the second base station sending a first resource response message to the second UE, where The first resource response message carries the foregoing communication resource used for performing communication by the D2D communication group. The solution provides a solution that allows D2D communication to proceed smoothly and reduces or avoids interference with cellular communications.

 The methods and examples shown in the above Figures 1 to 5 can be combined, and the following is exemplified according to different scenarios.

 FIG. 6 is a flowchart of a method for managing a communication resource according to another embodiment of the present invention; this embodiment is a specific implementation manner of the method shown in FIG. 1 to FIG. In this embodiment. As shown in FIG. 6, the foregoing method relates to a first UE that initiates a D2D communication service, a second UE that applies to join the D2D communication service, a first base station to which a cell where the first UE is located, and a second cell to which the second UE belongs. The base station; wherein the second UE and its corresponding second base station may be multiple. The application scenario of the foregoing method is that when the first UE establishes the D2D communication group, it has a corresponding serving cell, and the first UE acquires a communication resource for the D2D communication group to perform communication from the first base station to which the cell where the first UE belongs. The communication resource management method in this embodiment specifically includes the following steps.

 S601, the first user equipment UE sends a discovery message to the at least one second UE in the wireless network, where the discovery message is used to indicate to the at least one second UE that the first UE supports the device to the device D2D communication service; the discovery message carries the D2D The group identifier of the communication group and the service identifier corresponding to the D2D communication group;

S602, the first UE receives the first application message sent by the second UE, where the first application message carries the user identifier of the second UE, and the first application message is used by the second UE to join the D2D communication group.

 The above step 601 602 can be referred to step 101 102 in the embodiment shown in FIG. 1, which is not described herein.

 S603, the first UE sends a first resource request message to the first base station according to the first application message sent by the second UE, where the first UE is in the cell coverage area of the first base station, and the first resource request message carries the D2D communication. Group ID of the group;

 The method is a specific implementation of the step 103. After the first UE receives the first application message returned by the second UE, if the first UE currently has an accessing cell, the first UE is located The first base station to which the cell belongs sends a first resource request message, where the first resource request message carries the group identifier of the D2D communication group, to request the first base station to allocate communication resources for the D2D communication group.

S604. The first base station is configured according to the group identifier of the D2D communication group and the network of each cell under the current first base station. And determining, by the first base station, the first communication resource after the negotiation by the base station adjacent to the first base station according to the group identifier of the D2D communication group; For details, refer to the corresponding content in step 402, and no further details are provided herein.

 S605. The first base station sends a first resource response message to the first UE, where the first resource response message carries a first communication resource for performing communication by the D2D communication group. For the specific execution process, refer to step 403. The content is not described here.

 S606. The first UE sends, according to the user identifier of the second UE, a communication resource used by the D2D communication group to perform communication to the second UE in the D2D communication group.

 S607. The second UE performs the D2D communication service corresponding to the service identifier by using the foregoing communication resource. For the specific implementation process of the foregoing step 606 607, refer to the corresponding content in the step 104, which is not described herein.

 Further, in this embodiment, the first resource response message further includes a first cell list; the first cell list includes a cell identifier corresponding to at least one cell, where the first cell list is used to indicate the D2D communication group. a cell in which the first reserved resource is used for performing communication; the first cell list is determined by the first base station, or the first cell list is determined by the first base station and the base station adjacent to the first base station after negotiation of. The first reserved resource may be used to perform communication between UEs in the subsequent D2D communication group.

 The first cell list is not limited to the form of a table. Optionally, in this embodiment, after the step 607, that is, each UE in the D2D communication group performs the communication process, the following steps may be performed:

 S608, the first UE receives the second application message sent by the third UE, where the second application message carries the user identifier of the third UE and the cell identifier of the cell where the third UE is located.

 The third UE, as a UE newly added to the D2D communication group, needs to carry its own user identifier and the cell identifier of the current cell when transmitting the second application message to the first UE.

 S609.1, if the cell identifier of the cell where the third UE is located is included in the first cell list, the first UE notifies the third UE to perform the D2D communication service corresponding to the service identifier by using the first reserved resource, and the first UE The UE is managed as a second UE in the D2D communication group. In this process, the first UE does not need to notify the first base station where the first UE is located to newly allocate communication resources for the D2D communication group.

S609.2, if the cell identifier of the cell where the third UE is located is not included in the first cell list, The UE sends a second resource request message to the first base station; the second resource request message carries the group identifier of the D2D communication group and the cell identifier of the cell where the third UE is located, to request the first base station to use the cell according to the cell where the third UE is located. Identifying that the communication resource is reallocated for the D2D communication group, and the first UE manages the third UE as one of the second UEs in the D2D communication group;

 The third UE that is currently in the D2D communication group cannot use the first reserved resource to perform the corresponding service of the D2D communication group, because the cell in which the third UE is located is not in the first cell list. The first UE sends a second resource request message to the first base station to which the cell where the first UE belongs to notify the first base station to reallocate the communication resource to the D2D communication group according to the cell identifier of the cell where the third UE is located.

 S610. The first base station re-allocates communication resources for the D2D communication group according to the cell identifier of the cell where the third UE is located, the group identifier of the D2D communication group, and the network resource status of each cell under the current first base station; or, the first base station according to the third The cell identifier of the cell where the UE is located and the group identifier of the D2D communication group are re-allocated communication resources for the D2D communication group after being negotiated by the base station adjacent to the first base station;

 For the redistribution process, refer to the corresponding content of step 402. The first base station may find, according to the cell identifier of the cell where the third UE is located, the base station to which the cell where the third UE belongs, in the corresponding relationship table between the locally stored cell identifier and the base station where the cell is located, and may belong to the cell to which the third UE is located. The base stations negotiate together, and may also jointly negotiate with the neighboring base stations of the first base station to finally determine the communication resources for the D2D communication group.

 The first UE receives a second resource response message sent by the first base station, where the second resource response message carries a second communication resource and a second cell list for performing communication by the D2D communication group; the second cell list includes Cell ID of the cell where the third UE is located·'

 The first UE sends a second communication resource for the D2D communication group to perform communication to the second UE in the D2D communication group, to notify each UE in the D2D communication group to perform the D2D communication service corresponding to the service identifier by using the second communication resource;

 For the specific implementation process of the foregoing step 611 612, refer to the content of step 605 607, which is not described herein. The second cell list has the same function as the first cell list, and is used to provide communication resources used in subsequent communication between UEs in the D2D communication group. After receiving the second cell list, the first UE discards the original first cell list content and replaces it with the current second cell list. The second cell list includes a cell identifier of a cell where the third UE is located.

The foregoing step 609.1 and steps 609.2-612 determine whether the cell where the third UE is located is the first UE. The two sets of method steps performed in the first cell list are performed to enable the third UE to be integrated into the D2D communication group to perform the D2D communication service.

 Optionally, in this embodiment, after the foregoing first UE applies for the communication resource used by the D2D communication group to perform communication, and the D2D communication is performed by using the communication resource, the method further includes:

 S613, the first UE receives the first resource change message sent by the first base station; the first resource change message carries the first change communication resource;

 For example, after the D2D communication group is established, and the UEs in the group perform communication, the network side adjusts the communication resources allocated to the D2D communication group according to the change of the network resources, and passes the resource change message. The communication representative in the D2D communication group (such as the first UE in this embodiment) forwards to other UEs in the D2D communication group. For example, the first UE that is the communication representative receives the first resource change message sent by the first base station in the process of performing the D2D communication service, and the first resource change message carries the first change communication resource to indicate The first UE notifies each UE in the D2D communication group to perform a corresponding D2D communication service by using the first changed communication resource.

 614. The first UE sends the first change communication resource carried in the first resource change message to each of the second UEs in the D2D communication group, so that each second UE in the D2D communication group performs service by using the first change communication resource. Identifying the corresponding D2D communication service; and the first UE updates the cell identifier of the cell where the first change communication resource is located to the first cell list corresponding to the D2D communication group.

 For example, after receiving the first resource change message sent by the first base station, the first UE extracts the first changed communication resource from the message, and sends the first changed communication resource to each of the D2D communication groups. Second UE. Each of the second UEs continues to execute the 2D communication service by using the first changed communication resource. At the same time, the first UE updates the cell identifier of the cell where the first change communication resource is located to the first cell list (or the second cell list) corresponding to the D2D communication group.

The communication resource management method provided by the present invention, the first user equipment UE sends a discovery message to at least one second UE in the wireless network, where the discovery message is used to indicate to the at least one second UE that the first UE supports the device to the device D2D communication. The first discovery message carries the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group; the first UE receives the first application message sent by the second UE, where the first application message carries the second UE User ID; The first application message is used by the second UE to join the D2D communication group; the first UE acquires a communication resource used by the D2D communication group to perform communication according to the first application message sent by the second UE; Transmitting, by the UE, the communication resource for performing the communication by the D2D communication group to the second UE in the D2D communication group according to the user identifier of the second UE, to notify each UE in the D2D communication group to perform the foregoing service by using the communication resource. Identify the corresponding D2D communication service. The solution provides a solution that allows D2D communication to proceed smoothly and reduces or avoids interference with cellular communications.

 FIG. 7 is a flowchart of a communication resource management method according to still another embodiment of the present invention. This embodiment is another specific implementation manner of the method shown in FIG. 1 to FIG. 5, and can also be regarded as an implementation manner of the method shown in FIG. 6 in a specific scenario. The scenario in this embodiment is the same as the scenario in the method shown in FIG. 6, that is, after the first UE establishes a D2D communication group, how to further communicate when the network signal or quality of the cell in which the UE is located is decreased. The role of the representative is switched so that the other second UEs continue to manage the communication resources used by the above D2D communication group. It is to be noted that, in the implementation of the method flow shown in this embodiment, the first application message in the embodiment shown in FIG. 6 needs to carry the cell identifier of the cell where the second UE is located (each second UE may also perform D2D communication). In the process, the first UE actively reports the network condition of the cell in which it is located. As shown in FIG. 7, the foregoing communication resource management method specifically includes the following steps:

 S701, the first UE measures network signal strength and/or network signal quality of a cell where the first UE is located in the process of performing D2D communication;

 For example, the first UE, as the communication representative of the D2D communication group, performs real-time or periodic measurement of the network condition of the first UE accessing the current cell in the D2D communication process, including network signal strength and/or network signal quality. .

 S702, if the network signal strength of the cell where the first UE is located is lower than the first signal strength threshold, and/or the network signal quality is lower than the first signal quality threshold, the first UE is configured according to the cell identifier of the cell where each second UE is located. Selecting one UE as the fourth UE in the second UE;

The first signal strength threshold or the first signal quality threshold is a standard parameter for determining whether the signal strength or signal quality of the current network can ensure that the UE can continue to communicate with the network side. The first signal strength threshold and the first signal quality threshold may be set to any integer in the range of 0 to 100; the numerical interval of 0 to 100 represents the meaning: the larger the value, the corresponding signal strength or signal quality The better, the better the service communication; on the contrary, the smaller the value, the corresponding signal strength Or the worse the signal quality, the more unfavorable the service communication. If the network signal strength of the cell where the first UE is located is lower than the first signal strength threshold, and/or the network signal quality is lower than the first signal quality threshold, the current network state of the first UE access is not good, and the first state cannot be guaranteed. The UE performs normal communication with the base station on the network side where it is located. In this case, the first UE selects one UE from each of the second UEs as the fourth UE to replace the location of its own communication representative according to the cell identity of the cell where the second UE is located in the first application message, and continues to manage the foregoing. Communication resources corresponding to the D2D communication group. It is to be noted that the parameter and the specific determining method used in determining whether the current network of the cell in which the first UE is located is beneficial to the service communication is not limited to the manner described in this embodiment. For example, the threshold may be set in an opposite manner, for example, the smaller the value. The worse the representative signal quality, the larger the value represents the better the signal quality, and the threshold of the response, the associated signal strength and the quality of the network signal should be higher than the threshold. In addition, a condition can be satisfied by determining the indication of the signal quality. When the selection step in S702 is triggered, this principle can be applied to other embodiments of the present invention.

 Optionally, the specific method for the first UE to select one UE from each of the second UEs as the fourth UE according to the cell identifier of the cell where the second UE is located includes:

 The first UE sends a query request to the second UE in the D2D communication group according to the cell identifier of the cell in which the second UE is located. Specifically, the first UE may send a query request to the designated second UE according to the cell identifier of the cell where the second UE is located. . The query request is used to query the network signal strength and/or the network signal quality of the cell corresponding to the second UE.

 The first UE receives the query response sent by the second UE, where the query response carries the network signal strength and/or the network signal quality of the cell where the second UE is located. Specifically, after receiving the query request sent by the first UE, the second UE receives the query request. And transmitting, by the measurement, the network signal strength and/or the network signal quality of the cell where the second UE is obtained, by sending a query response to the first UE.

The first UE selects, as the fourth UE, the second UE with the strongest network signal strength or the network signal quality of the cell in the second UE, or the first UE selects a cell from each of the foregoing second UEs. The second UE with the strongest combination of the network signal strength and the network signal quality is used as the fourth UE; specifically, the network signal strength of the cell where the second UE is located, which is carried in the query response returned by the first UE to the second UE. Or comparing the network signal quality, selecting a UE with the strongest network signal strength or network signal quality of the cell in which it is located as the fourth UE; when the cell with the strongest network signal strength and the cell with the strongest network signal quality are not the same In the case of a cell, the network signal strength and the network signal quality of each cell may also be weighted to obtain a comprehensive The value is combined, and the UE corresponding to the cell with the strongest integrated value is determined as the fourth UE.

 Optionally, each of the foregoing second UEs may periodically report the measured value of the network signal strength and/or the network signal quality of the cell in which the cell is located to the first UE that is the communication representative, in the process of performing the foregoing D2D communication. The first UE is configured to grasp the network connection status of each second UE in real time, and select one UE from each of the second UEs as the fourth UE in time.

 S703.1, the first UE sends a first D2D communication resource interface UE change message to the first base station, where the first D2D communication resource interface UE change message carries the group identifier of the D2D communication group and the user identifier of each UE in the D2D communication group. And the cell identifier of the cell where the fourth UE is located; to notify the first base station that the fourth UE is used as the communication representative to manage the first communication resource corresponding to the subsequent D2D communication group; and/or, S703.2, the first UE is fourth. The UE sends a second D2D communication resource interface UE change message, where the second D2D communication resource interface UE change message carries the group identifier of the D2D communication group, the user identifier of each UE in the D2D communication group, and the cell identifier of the cell where the first UE is located; Instructing the fourth UE to manage, by the communication representative, the first communication resource corresponding to the subsequent D2D communication group;

 For example, after the first UE selects one UE from each of the second UEs as the fourth UE to manage the communication resources corresponding to the D2D communication group instead of the location of the communication representative, it is notified that the base station on the network side corresponds to the D2D communication group. The communication representative has been changed; the specific notification method can be as follows: Step 703.1 and/or Step 703.2, wherein the above step 703.1 is specifically:

The first UE may send a first D2D communication resource interface UE change message to the first base station, where the first D2D communication resource interface UE change message carries the group identifier of the D2D communication group, the user identifier of each UE in the D2D communication group, and The cell identifier of the cell where the fourth UE is located is used to notify the first base station that the fourth UE is used as the communication representative to manage the first communication resource corresponding to the subsequent D2D communication group. After receiving the first D2D communication resource interface UE change message, the first base station, according to the cell identifier of the cell where the fourth UE is located, queries the corresponding relationship between the locally stored cell identifier and the corresponding base station to obtain the base station identifier corresponding to the cell identifier. The first base station sends the first D2D communication resource interface UE change message to the fourth UE by using the queried base station corresponding to the fourth UE, to notify the fourth UE that the communication representative corresponding to the D2D communication group has been changed to the fourth UE. And transmitting the group identifier of the D2D communication group and the user identifier of each UE in the D2D communication group to the fourth UE, so as to facilitate the fourth UE as the communication representative to manage the communication resource corresponding to the D2D communication group. When the network side retransmits the message about the communication resource change of the D2D communication group, the base station corresponding to the fourth UE may notify the fourth UE to transmit to the other UEs in the D2D communication group. Corresponding communication resources.

 The above step 703.2 is specifically as follows:

 The first UE may send a second D2D communication resource interface UE change message to the fourth UE, where the second D2D communication resource interface UE change message carries the group identifier of the D2D communication group, the user identifier of each UE in the D2D communication group, and the first The cell identifier of the cell where the UE is located; to notify the fourth UE to manage the first communication resource corresponding to the subsequent D2D communication group by using it as the communication representative. After receiving the second D2D communication resource interface UE change message sent by the first UE, the fourth UE queries the corresponding relationship between the locally stored cell identifier and the corresponding base station according to the cell identifier of the cell where the first UE is located, and obtains the corresponding corresponding to the cell identifier. Base station identification. The fourth UE forwards the second D2D communication resource interface UE change message to the queried base station corresponding to the first UE by using the base station corresponding to the cell in which the cell is located, to notify the base station corresponding to the cell where the first UE is located, and the cell corresponding to the cell where the fourth UE is located. The base station corresponding to the D2D communication group has been changed to the fourth UE, and the group identifier of the D2D communication group is sent to the base station. When the network side retransmits the message about the communication resource change of the D2D communication group, the base station corresponding to the fourth UE may notify the fourth UE to transmit the corresponding communication resource to the other UEs in the D2D communication group.

 Optionally, after the step 703.1 or the step 703.2, and the UEs in the D2D communication group are in communication, the method further includes:

 S704, the second UE that is the fourth UE receives the second resource change message that is sent by the second base station to which the cell is located, and the second resource change message carries the second change communication resource.

 S705, the fourth UE sends the second change communication resource to each UE in the D2D communication group, to notify each UE to perform the D2D communication service corresponding to the service identifier by using the second change communication resource;

After the D2D communication group is established, and the UEs in the group perform communication, the network side base station adjusts the communication resources allocated to the D2D communication group according to the change of the network resources, and passes the resource change message through the D2D. The communication representatives in the communication group are forwarded to other UEs in the D2D communication group. For example, the first UE receives the second resource change message sent by the fourth UE that is the communication representative in the process of performing the normal D2D communication service, and the second resource change message carries the second change communication resource. Specifically, after receiving the second resource change message sent by the fourth UE, the first UE extracts the second changed communication resource from the message, and executes the D2D communication service by using the communication resource corresponding to the information. Optionally, after receiving the second resource change message sent by the network side base station, the fourth UE also updates the cell identifier of the cell where the second change communication resource is included in the first cell list.

 The communication resource management method provided by the present invention, the first UE measures the network signal strength and/or the network signal quality of the cell where the first UE is located in the process of performing the D2D communication; if the network signal strength of the cell where the first UE is located is lower than the first The signal strength threshold, and/or the network signal quality is lower than the first signal quality threshold, the first UE selects one UE from each of the second UEs as the fourth UE according to the cell identifier of the cell where the second UE is located; The first base station sends a first D2D communication resource interface UE change message, where the first D2D communication resource interface UE change message carries the group identifier of the D2D communication group, the user identifier of each UE in the D2D communication group, and the cell of the cell where the fourth UE is located. Identifying, by the first base station, the fourth UE as a communication representative to manage the first communication resource corresponding to the subsequent D2D communication group; and/or, the first UE sends the second D2D communication resource interface UE change message to the fourth UE, The second D2D communication resource interface UE change message carries the group identifier of the D2D communication group, the user identifier of each UE in the D2D communication group, and the cell where the first UE is located. The cell identifier is configured to notify the fourth UE to manage the first communication resource corresponding to the subsequent D2D communication group by using it as a communication representative. The solution provides a solution that allows D2D communication to proceed smoothly and reduces or avoids interference with cellular communications.

 FIG. 8 is a flowchart of a communication resource management method according to still another embodiment of the present invention. This embodiment is another specific implementation manner of the method shown in FIG. 1 to FIG. 5, and can also be regarded as an implementation manner of the method shown in FIG. 6 in a specific scenario. The scenario of this embodiment is different from the scenario of the method shown in FIG. 6 , that is, when the first UE is configured to form a D2D communication group, the first UE does not have a corresponding serving cell, and the first UE cannot obtain the information from the first base station. The D2D communication group communicates the communication resources, and selects one UE from the plurality of second UEs applying for joining the D2D communication group as a communication resource for requesting communication from the network side for the above-mentioned D2D communication group for communication. As shown in FIG. 8, the foregoing communication resource management method specifically includes the following steps:

 S801. The first user equipment UE sends a discovery message to the at least one second UE in the wireless network, where the discovery message is used to indicate to the at least one second UE that the first UE supports the device to the device D2D communication service; the discovery message carries the D2D. The group identifier of the communication group and the service identifier corresponding to the D2D communication group;

S802. The first UE receives a first application message sent by the second UE, where the first application message carries a user identifier of the second UE. The first application message is used by the second UE to join the D2D communication group. The foregoing step 801 802 can be referred to step 101 102 in the embodiment shown in FIG. 1, and details are not described herein. Different from step 102, in step 802, the first application message sent by each second UE further carries the cell identifier of the cell where the second UE is located.

 The first UE calculates the network signal strength and/or the network signal quality of the cell where the second UE is located according to the cell identifier of the cell where the second UE is located, and selects one of the second UEs according to the measurement result.

The UE is used as the fifth UE, and sends the foregoing first resource request message to the fifth UE, to notify the fifth UE to manage the communication resource of the D2D communication group by using the communication terminal as the communication representative;

 For example, after receiving the first application message sent by each second UE, the first UE measures the current network connection status of each second UE according to the cell identifier of the cell where the second UE is located, which is carried in the first application message, and A suitable second UE is selected as the fifth UE, and the second UE has the characteristics that the network signal strength and signal quality are stronger than other second UEs. The first UE sends the first resource request message to the fifth UE by using the fixed resource and the sending and receiving information manner of the foregoing protocol, so that the communication resource of the D2D communication service corresponding to the service identifier is obtained from the network by the fifth UE; The fifth UE is notified to manage the communication resources used by the D2D communication group as a communication representative.

 The second UE that is the fifth UE sends a first resource request message to the second base station to which the cell to which the cell belongs, to request the second base station to allocate a communication resource for the D2D communication service corresponding to the service identity of the D2D communication group.

 S805, the second base station determines, according to the group identifier of the D2D communication group and the network resource condition of each cell under the current second base station, a communication resource used for communication by the D2D communication group; or, the second base station passes the group identifier according to the D2D communication group. Determining, by the base station adjacent to the second base station, the foregoing communication resource;

 S806, the second UE that is the fifth UE receives the first resource response message sent by the second base station, where the first resource response message carries a communication resource used for performing communication by the D2D communication group;

 S807, as the second UE of the fifth UE, transmitting communication resources for performing communication by the D2D communication group to each UE in the D2D communication group according to the user identifier of each UE in the D2D communication group, to notify each UE to perform the foregoing service identifier by using the communication resource. Corresponding D2D communication service.

 For the specific implementation process of the foregoing step 704 707, reference may be made to the process of the first UE acquiring the communication resources used by the D2D communication group from the first base station, which is not described herein.

Specifically, the fifth UE is directly connected to the D2D according to the user identifier of each UE in the D2D communication group. The information of the foregoing communication resource is sent to each UE in the D2D communication group by using the information of the communication resource for the D2D communication group to perform the communication.

 S808.1, the fifth UE sends, to the first UE, a communication resource for performing communication by the D2D communication group; S808.2, the first UE sends, to the second UE in the D2D communication group, the D2D according to the user identifier of the second UE. The communication group performs the communication resource of the communication, to notify each UE in the D2D communication group to perform the D2D communication service corresponding to the service identifier by using the communication resource;

 Specifically, the first UE may receive the communication resource sent by the fifth UE by using the fixed resource and the sending and receiving information manner, and then performing the process of step 104 to send the communication resource to each UE of the D2D communication group. .

 Optionally, the foregoing first resource response message further includes a cell list, where the cell list includes a cell identifier corresponding to the at least one cell, where the cell list is used to indicate a cell where the reserved resource used by the D2D communication group to perform communication is located; The cell list is determined by the second base station, or the cell list is determined by the second base station after being negotiated by the base station adjacent to the second base station. The content of the cell list, the role, and the specific manner of determining the cells in the cell list are the same as those of the first cell list, and are not described herein.

 Optionally, after the step 807, the communication resource corresponding to the D2D communication group is managed by the fifth UE as a communication representative, and the fifth UE further includes:

The third UE receives the third resource change message sent by the second base station to which the cell where the fifth UE belongs, and the third resource change message carries the third change communication resource.

 5810: The fifth UE sends the third change communication resource to each UE in the D2D communication group, to notify each UE to perform the D2D communication industry corresponding to the service identifier by using the third change communication resource, and the execution process of the foregoing step 809 810 may be referred to. The corresponding content of step 704 705 is not described herein.

 Optionally, after receiving the third resource change message sent by the network side base station, the fifth UE also updates the cell identifier of the cell where the third change communication resource is included in the corresponding cell list.

The communication resource management method provided by the present invention, the first user equipment UE sends a discovery message to at least one second UE in the wireless network, where the discovery message is used to indicate the first UE to the at least one second UE. Supporting the device-to-device D2D communication service; the discovery message carries the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group; the first UE receives the first application message sent by the second UE, where the first application message carries the first a user identifier of the second UE; the first application message is used by the second UE to join the D2D communication group; and the first UE measures the network signal strength and/or the network signal quality of the cell where the second UE is located according to the cell identifier of the cell where the second UE is located. And selecting, according to the measurement result, one UE from each of the second UEs as the fifth UE, and sending the first resource request message to the fifth UE, to notify the fifth UE of the communication resource of the D2D communication group by the communication representative Performing management; the fifth UE forwards the first resource request message to the base station to which the cell to which the cell belongs, to request the base station to which the cell in which the fifth UE belongs to allocate the communication resource for the D2D communication group to perform the D2D communication service corresponding to the service identifier; The fifth UE receives the first resource response message sent by the base station to which the cell to which the cell belongs, and the first resource response message carries the communication for the D2D communication group to perform communication. a communication resource; the fifth UE sends a communication resource for performing communication by the D2D communication group to each UE in the D2D communication group according to the user identifier of each UE in the D2D communication group, to notify each UE to perform D2D corresponding to the service identifier by using the communication resource. Communication business. The solution provides a solution that allows D2D communication to proceed smoothly and reduces or avoids interference with cellular communications.

 FIG. 9 is a flowchart of a communication resource management method according to still another embodiment of the present invention. This embodiment is another specific implementation manner of the method shown in FIG. 1 to FIG. 5, and can also be regarded as an implementation manner of the method shown in FIG. 6 in a specific scenario. The scenario in this embodiment is the same as the scenario in the method shown in FIG. 6, that is, after the first UE is set up to complete the D2D communication group, how to further switch to the new cell after the network signal or quality of the cell in which it is located is decreased. , continue to manage the communication resources used by the above D2D communication group. As shown in FIG. 9, the foregoing communication resource management method specifically includes the following steps:

S901. The first UE measures, in a process of performing D2D communication, a network signal strength and/or a network signal quality of a cell where the first UE is located and a neighboring cell of the cell where the first UE is located, and reselects or switches to a new one according to the measurement result. Community

 For example, the first UE, as the communication representative of the D2D communication group, performs real-time or periodic measurement of the network condition of the first UE accessing the current cell and the neighboring cell of the cell where the first UE is located in the process of performing the D2D communication. Network conditions, including network signal strength and/or network signal quality. The network condition of the neighboring cell of the cell where the first UE is located may be assisted by the base station corresponding to the first UE accessing the network.

S902.1. The first UE determines, according to the base station to which the new cell where the first UE belongs, a new a first base station, and sending a D2D communication resource cell change message to the first base station; the D2D communication resource cell change message carries a group identifier of the D2D communication group and a user identifier of the first UE, to notify the first base station that the new base station is under the new cell The first UE continues to manage the communication resources of the subsequent D2D communication group as a communication representative; or

 S902.2, the first UE sends a D2D communication resource cell change message to the first base station to which the new cell belongs by using the base station to which the original cell belongs in the process of reselecting or switching, to notify the first base station that the first cell is the first one of the new cells. The UE continues to manage the communication resources of the subsequent D2D communication group as a communication representative;

 For example, when the first UE is handed over to the new cell by the current access cell, the base station of the network side is notified that the cell corresponding to the communication representative corresponding to the D2D communication group has been changed; the specific notification manner may be as described in step 902.1 or step 902.2. The above step 902.1 is specifically as follows:

 After the first UE selects and completes the handover to the new cell, the third base station to which the new cell belongs is determined as the new first base station, and the D2D communication resource cell change message is sent to the third base station; the D2D communication resource cell is changed. The message carries the group identifier of the D2D communication group and the user identifier of the first UE, to notify the third base station that the first UE accessing the new cell continues to serve as a communication representative for the communication resources of the subsequent D2D communication group. management. Specifically, when receiving the D2D communication resource cell change message, the third base station may determine the current access cell of the first UE by using the network resource used by the first UE to send the information, and determine the access cell as the new cell. Therefore, the cell identity of the new cell may not be carried in the D2D communication resource cell change message. At the same time, the third base station further sends the D2D communication resource cell change message to the first base station where the first UE is located, so that the original first base station learns that the first UE under the third base station continues to be the communication representative for the subsequent The communication resources of the D2D communication group are managed.

 The above step 902.2 is specifically as follows:

The first UE may also send a D2D communication resource cell change message to the first base station to which the new cell belongs by using the base station to which the original cell belongs in the process of reselection or handover, to notify the first base station corresponding to the new cell to be used by the new cell. The first UE continues to manage the communication resources of the subsequent D2D communication group as the communication representative. Specifically, after the first UE determines the new cell to be handed over, the first UE may search for each cell and the corresponding base station by using the original base station. Corresponding relationship table, searching for the base station identifier of the first base station corresponding to the new cell, and passing the base station corresponding to the original cell And transmitting, to the base station corresponding to the new cell, the D2D communication resource cell change message, where the D2D communication resource cell change message carries the cell identity of the new cell. The first base station corresponding to the new cell is notified to continue to manage the communication resources of the subsequent D2D communication group by the first UE under the new cell as the communication representative.

 The communication resource management method provided by the present invention, the first UE measures the network signal strength and/or the network signal quality of the cell where the first UE is located and the neighboring cell of the cell where the first UE is located in the process of performing D2D communication, and according to the measurement result Reselecting or switching to a new cell; the first UE determines the base station to which the new cell in which the first UE belongs to be the new first base station, and sends a D2D communication resource cell change message to the first base station; the D2D communication resource cell The change message carries the group identifier of the D2D communication group and the user identifier of the first UE, to notify the first base station to continue to manage the communication resources of the subsequent D2D communication group by the first UE in the new cell as the communication representative; or, the first The UE sends a D2D communication resource cell change message to the first base station to which the new cell belongs by using the base station to which the original cell belongs in the process of reselection or handover, to notify the first base station to continue as the communication representative pair by the first UE under the new cell. The communication resources of the subsequent D2D communication group are managed. The solution provides a technical solution that enables D2D communication to proceed smoothly and reduces or avoids interference with cellular communications.

 FIG. 10 is a schematic structural diagram of a device (for example, a user equipment UE) according to an embodiment of the present invention. As shown in FIG. 10, the foregoing device may be a user equipment that initiates D2D communication, for example, may be used to perform the method shown in FIG. 1. The following uses the first user equipment UE as an example, details and examples. See also the above-described embodiments of the present invention, such as the embodiment shown in FIG.

The foregoing first user equipment UE includes: a sending module 1001, a receiving module 1002, and a processing module 1003, where: the sending module 1001 is configured to send a discovery message to at least one second UE in the wireless network, where the discovery message is used to send the at least one The second UE indicates that the first UE supports the device-to-device D2D communication service; the discovery message carries the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group; and the receiving module 1002 is configured to receive the second UE An application message, where the first application message carries the user identifier of the second UE; the first application message is used by the second UE to join the D2D communication group; and the processing module 1003 is configured to send according to the second UE. The foregoing first application message acquires a communication resource for performing communication by the D2D communication group; the sending module 1001 is further configured to: according to the user identifier of the second UE, The second UE in the D2D communication group transmits a communication resource for performing communication by the D2D communication group to notify each UE in the D2D communication group to execute the D2D communication service corresponding to the service identifier by using the communication resource.

 On the basis of the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

 The foregoing processing module 1003 is specifically configured to:

 Instructing the sending module 1001 to send a first resource request message to the first base station according to the first application message sent by the second UE, where the first UE is in the first resource request message in the cell coverage area of the first base station. Carrying the group identifier of the D2D communication group; instructing the receiving module 1002 to receive the first resource response message sent by the first base station, where the first resource response message carries the first communication resource used for performing communication by the D2D communication group; The first communication resource is determined by the first base station according to the group identifier of the D2D communication group and the current network resource status of each of the cells in the first base station; or, the first communication resource is the first base station according to the D2D communication group. The group identity is determined after being negotiated by the base station adjacent to the first base station.

 On the basis of the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

 The first resource response message further includes a first cell list, where the first cell list includes a cell identifier corresponding to the at least one cell, where the first cell list is used to indicate the first reserved resource used by the D2D communication group to perform communication. The first cell list is determined by the first base station, or the first cell list is determined by the first base station and the base station adjacent to the first base station.

 Based on the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

 The receiving module 1002 is further configured to receive a second application message sent by the third UE, where the second application message carries a user identifier of the third UE and a cell identifier of a cell where the third UE is located;

The foregoing processing module 1003 is further configured to: if the cell identifier of the cell where the third UE is located is included in the first cell list, notify the third UE to perform, by using the first reserved resource, the service identifier D2D communication service, and instructing the first UE to use the third UE as the D2D One of the second UEs in the communication group is managed.

 Based on the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

 The receiving module 1002 is further configured to receive a second application message sent by the third UE, where the second application message carries the user identifier of the third UE and the cell identifier of the cell where the third UE is located; the processing module 1003 is further used by And if the cell identifier of the cell where the third UE is located is not included in the first cell list, the sending module 1001 is configured to send a second resource request message to the first base station; and the second resource request message carries the D2D communication group. The group identifier and the cell identifier of the cell where the third UE is located, to request the first base station to re-allocate communication resources to the D2D communication group according to the cell identifier of the cell where the third UE is located, and instruct the first UE to use the third UE. The UE is managed as one of the foregoing second UEs in the D2D communication group;

 The receiving module 1002 is further configured to receive the second resource response message sent by the first base station, where the second resource response message carries a second communication resource and a second cell list used for performing communication by the D2D communication group; The cell list includes the cell identifier of the cell where the third UE is located;

 The transmitting module 1001 is further configured to send, to the second UE in the D2D communication group, a second communication resource that is used by the D2D communication group to perform communication, to notify each UE in the D2D communication group to perform the foregoing by using the second communication resource. The D2D communication service corresponding to the service identifier.

 Based on the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

 The first application message further includes the cell identifier of the cell where the second UE is located. The processing module 1003 is further configured to: when the first UE performs the D2D communication, measure the network signal strength of the cell where the first UE is located, and/or Or network signal quality;

If the network signal strength of the cell where the first UE is located is lower than the first signal strength threshold, and/or the network signal quality is lower than the first signal quality threshold, the processing module 1003 is configured according to the cell identifier of the cell where the second UE is located. One of the foregoing second UEs is selected as the fourth UE. The sending module 1001 is configured to send a first D2D communication resource interface UE change message to the first base station, where the first D2D communication resource interface UE change message carries the D2D. a group identifier of the communication group, a user identifier of each UE in the D2D communication group, and a cell identifier of a cell in which the fourth UE is located; to notify the first base station that the fourth UE is used as a communication representative to the subsequent D2D communication group Corresponding to the foregoing first communication resource for management; and/or,

 The sending module 1001 sends a second D2D communication resource interface UE change message to the fourth UE, where the second D2D communication resource interface UE change message carries the group identifier of the D2D communication group and the user identifier of each UE in the D2D communication group. And the cell identifier of the cell where the first UE is located; and the fourth UE is configured to be used as a communication representative to manage the first communication resource corresponding to the subsequent D2D communication group.

 Based on the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

 The processing module 1003 selects one UE from each of the second UEs as the fourth UE according to the cell identifier of the cell in which the second UE is located, and includes:

 The processing module 1003, according to the cell identifier of the cell where the second UE is located, instructs the sending module 1001 to send a query request to the second UE in the D2D communication group;

 The foregoing processing module 1003 instructs the receiving module 1002 to receive the query response sent by the second UE, where the query response carries the network signal strength and/or the network signal quality of the cell where the second UE is located;

 The processing module 1003 selects, as the fourth UE, the second UE that has the strongest network signal strength or network signal quality of the cell in the second UE, or the processing module 1003 selects from each of the second UEs. The second UE having the strongest combination of the network signal strength and the network signal quality of the cell in which the cell is located serves as the fourth UE.

 Based on the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

 The first application message further carries the cell identifier of the cell where the second UE is located;

The processing module 1003 is further configured to: measure, according to the cell identifier of the cell where the second UE is located, the network signal strength and/or the network signal quality of the cell where the second UE is located, and select one UE from each of the second UEs according to the measurement result. As the fifth UE, the instructing sending module 1001 sends the first resource request message to the fifth UE to notify the fifth UE to manage the communication resource of the D2D communication group as a communication representative; and instruct the foregoing The fifth UE forwards the first resource request message to the base station to which the cell in which the fifth UE belongs, and further requests the base station to which the cell in which the fifth UE belongs to allocate the communication resource used by the D2D communication group to perform the D2D communication service corresponding to the service identifier. ; The processing module 1003 instructs the receiving module 1002 to receive the communication resource sent by the fifth UE for performing the communication by the D2D communication group.

 Based on the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

 The processing module 1003 is further configured to: when the first UE performs the foregoing D2D communication, measure network signal strength and/or network signal quality of the cell where the first UE is located and the neighboring cell of the cell where the first UE is located, and according to The measurement result is re-selected or switched to a new cell;

 The processing module 1003 is further configured to determine, by the base station to which the new cell where the first UE is located, the new first base station, and instruct the sending module 1001 to send a D2D communication resource cell change message to the first base station; The resource cell change message carries the group identifier of the D2D communication group and the user identifier of the first UE, to notify the first base station that the first UE in the new cell continues to be the communication representative to the foregoing D2D communication group. Management of communication resources; or,

 The processing module 1003 instructs the sending module 1001 to send the D2D communication resource cell change message to the first base station to which the new cell belongs by using the base station to which the original cell belongs in the process of the reselection or handover to notify the first base station The first UE in the new cell continues to manage the communication resources of the subsequent D2D communication group as a communication representative.

 Based on the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

 The receiving module 1002 is further configured to: when the first UE performs the D2D communication, receive the first resource change message sent by the first base station; and the first resource change message carries the first change communication resource;

 The transmitting module 1002 is further configured to send the first changed communication resource carried in the first resource change message to the second UE in the D2D communication group, so that each of the second UEs in the D2D communication group uses the foregoing The first change communication resource performs the D2D communication service corresponding to the service identifier; and the processing module 1003 is instructed to update the cell identifier of the cell where the first change communication resource is located to the first cell list corresponding to the D2D communication group.

 Based on the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

The receiving module 1002 is further configured to use the fourth UE as the communication representative to perform the D2D communication. After the first communication resource corresponding to the group is managed, the first UE receives the second resource change message sent by the fourth UE in the process of performing the D2D communication, and the second resource change message carries the second change. Communication resources

 The processing module 1003 is further configured to perform the D2D communication service corresponding to the service identifier by using the second changed communication resource.

 Based on the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

 The receiving module 1002 is further configured to: after the fifth UE is used as the communication representative, to manage the communication resource of the D2D communication group, and the first UE receives the first UE sent in the process of performing the D2D communication. a third resource change message; the third resource change message carries the third change communication resource;

 The processing module 1003 is further configured to perform the D2D communication service corresponding to the service identifier by using the third change communication resource.

 The foregoing steps in the embodiment shown in FIG. 6-9 are implemented by using the device shown in the embodiment in the first UE. The specific implementation process is not described herein.

 The device provided in this embodiment may acquire information about communication resources required for each second UE to perform D2D communication service according to an application message sent by each second UE received from the network, so that each UE in the D2D communication group utilizes The communication resources perform corresponding D2D communication services, effectively reducing or avoiding interference to existing cellular network communications.

 FIG. 11 is a schematic structural diagram of a device (for example, a user equipment UE) according to another embodiment of the present invention. As shown in FIG. 11, the device may be a second UE that receives the first UE to initiate the D2D communication group service in the D2D communication group, and may be used, for example, to perform the method as shown in FIG. The second user equipment UE is taken as an example. For details and examples, reference may also be made to the foregoing embodiments of the present invention, such as the embodiment shown in FIG. 2.

The foregoing second user equipment UE includes: a receiving module 1101 and a sending module 1102, where: the receiving module 1101 is configured to receive a discovery message sent by the first UE from the wireless network, where the discovery message carries a group identifier of the device to the device D2D communication group. a service identifier corresponding to the D2D communication group; the sending module 1102 is configured to send a first application message to the first UE according to the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group, where the first application message is carried a user identifier of the second UE; the foregoing first application message is used by the foregoing second UE to join the foregoing D2D pass The receiving module 1101 is further configured to receive, by the first UE, the communication resource that is sent by the first UE according to the user identifier of the second UE for performing the communication by using the D2D communication group, and instruct the second UE to perform the foregoing by using the communication resource. The D2D communication service corresponding to the service identifier.

 Based on the functional structure shown in this embodiment, for example, the foregoing second user equipment UE may further include:

 The receiving module 1101 is further configured to: when the second UE performs the D2D communication, receive the changed communication resource sent by the first UE for performing the D2D communication group to perform communication, and instruct the second UE to use the changed communication resource. The D2D communication service corresponding to the foregoing service identifier is executed. On the basis of the functional structure shown in this embodiment, for example, the foregoing second user equipment UE may further include:

 The first application message further carries the cell identifier of the cell where the second UE is located;

 The receiving module 1101 is configured to receive, by the second UE, a second D2D communication resource interface UE change message sent by the first UE when the second UE is in the process of performing the D2D communication, where the second D2D communication resource interface UE is changed. The message carries the group identifier of the D2D communication group, the user identifier of each UE in the D2D communication group, and the cell identifier of the cell where the first UE is located; the fourth UE is the foregoing first UE according to each of the foregoing D2D communication groups. a cell identifier of a cell in which the second UE is located, and a UE selected from each of the foregoing second UEs;

 The sending module 1102 is further configured to: when the second UE is used as the fourth UE, send the second D2D communication resource interface UE change message to the second base station to which the second UE is located, to notify the second base station The second UE of the fourth UE, as the communication representative, manages the foregoing communication resources of the subsequent D2D communication group.

 Based on the functional structure shown in this embodiment, for example, the foregoing second user equipment UE may further include:

 Before the second UE receives the second D2D communication resource interface UE change message sent by the first UE by using the receiving module 1101 as the fourth UE in the process of performing the foregoing D2D communication,

 The receiving module 1101 is configured to receive the query request sent by the first UE, and the sending module 1102 is configured to return a query response to the first UE, where the query response carries the network signal strength and/or network signal quality of the cell where the second UE is located. .

On the basis of the functional structure shown in this embodiment, for example, the foregoing second user equipment UE may further include: After the communication resource corresponding to the D2D communication group is managed by the second UE as the communication representative, and the second UE is in the process of performing the D2D communication,

 The receiving module 1101 is further configured to receive a second resource change message sent by the second base station to which the second UE is located, where the second resource change message carries the second change communication resource, where the sending module 1102 is further used to Each of the UEs in the D2D communication group transmits the second changed communication resource to notify each of the UEs to perform the D2D communication service corresponding to the service identifier by using the second changed communication resource.

 The foregoing steps in the embodiment shown in FIG. 6-7 and FIG. 9 are implemented by the device shown in this embodiment, and the specific implementation process is not described herein.

 The device provided in this embodiment performs the corresponding D2D communication service by receiving the communication resource required for the D2D communication service for each second UE acquired by the first UE from the network as the initiator of the D2D communication service group. , effectively reduce or avoid interference with existing cellular communication.

 FIG. 12 is a schematic structural diagram of a device (for example, a user equipment UE) according to another embodiment of the present invention. As shown in FIG. 12, the foregoing device may be a second UE that initiates a D2D communication group service in a certain D2D communication group, for example, may be used to perform the method shown in FIG. The second user equipment UE is taken as an example. For details and examples, reference may also be made to the foregoing embodiments of the present invention, such as the embodiment shown in FIG.

 The foregoing second user equipment UE specifically includes: a receiving module 1201 and a sending module 1202. The receiving module 1201 is configured to receive a discovery message sent by the first UE from the wireless network, where the discovery message carries a device-to-device D2D communication group. Identifying a service identifier corresponding to the D2D communication group;

 The sending module 1202 is configured to send a first application message to the first UE according to the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group, where the first application message carries the user identifier of the second UE and the foregoing a cell identifier of the cell where the UE is located; the first application message is used by the second UE to join the D2D communication group;

The receiving module 1201 is further configured to: when the second UE is used as the fifth UE, receive the first resource request message sent by the first UE, where the first resource request message carries the group identifier of the D2D communication group and the D2D communication group. a user identifier of each UE, to notify the fifth UE to manage the communication resource of the D2D communication group by using the communication unit as the communication representative; the fifth UE is the first UE according to the cell identifier of the cell where each of the second UE is located One selected one of the foregoing second UEs; The sending module 1202 is further configured to: when the second UE is the fifth UE, forwarding the first resource request message to the second base station to which the second UE is located, to request the second base station to allocate the D2D communication group. Performing communication resources of the D2D communication service corresponding to the foregoing service identifier;

 The receiving module 1201 is further configured to receive, by using the second UE, the first resource response message sent by the second base station, where the first resource response message carries a communication resource used for performing communication by using the D2D communication group; The communication resource is determined by the second base station according to the group identifier of the D2D communication group and the current network resource condition of each cell in the second base station; or, the communication resource is the group identifier of the second base station according to the D2D communication group. Determining after being negotiated by the base station adjacent to the second base station;

 The sending module 1202 is further configured to: when the second UE is used as the fifth UE, send, according to a user identifier of each UE in the D2D communication group, a communication resource used by the D2D communication group to perform communication, according to a user identifier of each UE in the D2D communication group, to The UE is notified to use the communication resource to perform the D2D communication service corresponding to the service identifier.

 Based on the functional structure shown in this embodiment, for example, the foregoing second user equipment UE may further include:

 The foregoing first resource response message further includes a cell list, where the cell list includes a cell identifier corresponding to at least one cell, where the cell list is used to indicate a cell in which the reserved resource used by the D2D communication group performs communication; The foregoing determining, by the second base station, the cell list is determined by the second base station after being negotiated by the base station adjacent to the second base station.

 Based on the functional structure shown in this embodiment, for example, the foregoing second user equipment UE may further include:

 The receiving module 1201 is further configured to receive a third resource change message sent by the second base station to which the cell where the fifth UE is located, where the third resource change message carries the third change communication resource;

 The sending module 1202 is further configured to send the third changed communication resource to each UE in the D2D communication group, to notify each UE to perform the D2D communication service corresponding to the service identifier by using the third changed communication resource.

The foregoing step of using the second UE as the execution subject in the embodiment shown in FIG. 8 can be adopted in this embodiment. The device implementation is shown, and its specific implementation process will not be described herein.

 The device provided in this embodiment may replace the first UE from the network when the initiator of the D2D communication service is initiated, that is, the first UE cannot obtain the communication resources required for the second UE to perform the D2D communication service from the network. The foregoing communication resources are obtained, so that each UE in the D2D communication group performs corresponding D2D communication service through the communication resource, thereby effectively reducing or avoiding interference to existing cellular network communication.

 FIG. 13 is a schematic structural diagram of a device (for example, a base station) according to another embodiment of the present invention. As shown in FIG. 13 , the foregoing device may be a base station to which a user equipment UE that is initiating D2D communication belongs, for example, may be used to perform the method as shown in FIG. For a description, details and examples, reference may also be made to the above-described embodiments of the present invention, such as the embodiment shown in FIG.

 The foregoing first base station specifically includes: a receiving module 1301, a processing module 1302, and a sending module 1303. The receiving module 1301 is configured to receive a first resource request message sent by the first UE, where the first UE is in a cell covered by the first base station. The first resource request message carries the group identifier of the D2D communication group, and the processing module 1302 is configured to determine, according to the group identifier of the D2D communication group and the current network resource status of each cell in the first base station, that the D2D communication is used. The first communication resource is configured to perform communication; or the processing module 1302 determines the first communication resource after being negotiated by the base station adjacent to the first base station according to the group identifier of the D2D communication group; and the sending module 1303 is configured to The first UE sends a first resource response message, where the first resource response message carries the first communication resource used for performing communication by the D2D communication group.

 Based on the functional structure shown in this embodiment, for example, the foregoing first base station may further include:

 The first resource response message further includes a first cell list, where the first cell list includes a cell identifier corresponding to the at least one cell, where the first cell list is used to indicate the first reserved resource used by the D2D communication group to perform communication. The first cell list is determined by the processing module 1302, or the first cell list is determined by the processing module 1302 and the base station adjacent to the first base station.

 Based on the functional structure shown in this embodiment, for example, the foregoing first base station may further include:

The receiving module 1301 is further configured to receive the second resource request message sent by the first UE. The second resource request message carries the group identifier of the D2D communication group and the cell identifier of the cell where the third UE is located, and the cell identifier of the cell where the third UE is located is not included in the first cell list. The processing module 1302 is further used by the processing module 1302. And re-allocating the communication resource to the D2D communication group according to the cell identifier of the cell in which the third UE is located, the group identifier of the D2D communication group, and the current network resource status of each of the cells in the first base station; or, the processing module 1302 is configured according to the foregoing The cell identifier of the cell where the third UE is located and the group identifier of the D2D communication group are re-allocated the communication resource for the D2D communication group after being negotiated by the base station adjacent to the first base station;

 The foregoing sending module 1303 is further configured to send a second resource response message to the first UE, where the second resource response message carries the communication resource and the second cell list that are re-allocated for the D2D communication group; The cell identifier of the cell where the third UE is located is included.

 Based on the functional structure shown in this embodiment, for example, the foregoing first base station may further include:

 The receiving module 1301 is further configured to receive the first D2D communication resource interface UE change message sent by the first UE, where the first D2D communication resource interface UE change message carries the group identifier of the D2D communication group, and each of the D2D communication groups The user identifier of the UE and the cell identifier of the cell where the fourth UE is located; the first D2D communication resource interface UE change message is used to notify the first base station that the first UE is used by the fourth UE as a communication representative to the first D2D communication group corresponding to the first Management of communication resources;

 The sending module 1303 is further configured to send, according to the cell identifier of the cell where the fourth UE is located, the first D2D communication resource interface UE change message to the base station to which the fourth UE is located, to notify the cell to which the fourth UE is located. The base station is configured by the fourth UE as a communication representative to manage the foregoing communication resources of the foregoing D2D communication group; or

 The receiving module 1301 receives the second D2D communication resource interface UE change message sent by the fourth UE that is sent by the base station to which the fourth UE belongs, and the second D2D communication resource interface UE change message carries the group of the D2D communication group. The identifier, the user identifier of the fourth UE, and the cell identifier of the cell where the fourth UE is located, so that the first base station learns that the fourth UE is used as a communication representative to manage the communication resource of the subsequent D2D communication group.

 Based on the functional structure shown in this embodiment, for example, the foregoing first base station may further include:

The receiving module 1301 is further configured to receive the D2D sent by the first UE that is forwarded by the third base station. a communication resource cell change message, where the D2D communication resource cell change message carries the group identifier of the D2D communication group and the user identifier of the first UE, so that the first base station learns that the first UE under the third base station continues As the communication representative, the above communication resources of the above-mentioned D2D communication group are managed.

 Based on the functional structure shown in this embodiment, for example, the foregoing first base station may further include:

 In the process of performing the foregoing D2D communication, the sending module 1303 is further configured to send a first resource change message to the first UE, where the first resource change message carries the changed first communication resource, to enable the foregoing Transmitting, by the first UE, information of the changed first communication resource to each UE in the D2D communication group, to notify each UE to perform the service of the D2D communication by using the changed first communication resource; and instructing the first The UE updates the cell identifier of the cell where the first change communication resource is located to the first cell list corresponding to the D2D communication group.

 The foregoing steps in the embodiment shown in FIG. 6-9 are performed by using the first base station as the execution entity, and the specific implementation process is not described herein.

 The device provided in this embodiment, after receiving the user equipment, that is, the first resource request message sent by the first UE, according to the group identifier of the D2D communication group carried in the message and the network resource status of each cell under the current first base station Determining a first communication resource for communication by the D2D communication group; or determining, according to the group identity of the D2D communication group, the first communication resource after being mutually negotiated by the base station adjacent to the first base station; and determining the first communication The resource is sent to the user equipment, so that each UE in the D2D communication group performs corresponding D2D communication service through the communication resource, thereby effectively reducing or avoiding interference to the existing cellular network communication.

 FIG. 14 is a schematic structural diagram of a device (for example, a base station) according to still another embodiment of the present invention. As shown in FIG. 14, the device may be a base station to which a cell in which a second UE is currently in the D2D communication group, and may be used to perform a method as shown in FIG. The second base station is taken as an example for the foregoing device. For details and examples, reference may also be made to the foregoing embodiment of the present invention, such as the embodiment shown in FIG.

The foregoing second base station specifically includes: a receiving module 1401, a processing module 1402, and a sending module 1403. The receiving module 1401 is configured to receive a first resource request message sent by the second UE and sent by the second UE. The first resource request message carries the group identifier of the D2D communication group; the first resource request message is used by the first UE The D2D communication group performs the communication resource application; the processing module 1402 is configured to determine, according to the group identifier of the D2D communication group and the network resource condition of each of the cells under the second base station, communication resources used for communication by the D2D communication group; or The processing module 1402 determines the communication resource after being negotiated by the base station adjacent to the second base station according to the group identifier of the D2D communication group, and the sending module 1403 is configured to send a first resource response message to the second UE, where The first resource response message carries the foregoing communication resource for performing communication by the D2D communication group.

 Based on the functional structure shown in this embodiment, for example, the foregoing second base station may further include:

 The foregoing first resource response message further includes a cell list, where the cell list includes a cell identifier corresponding to at least one cell, where the cell list is used to indicate a cell in which the reserved resource used by the D2D communication group performs communication; The foregoing processing module 1402 determines, or the foregoing cell list is determined after the processing module 1402 and the base station adjacent to the second base station jointly negotiate.

 The steps of the embodiment shown in FIG. 6-9 in which the second base station is the execution entity may be implemented by using the device shown in this embodiment, and detailed description thereof is not described herein.

 The device provided in this embodiment may receive the first resource request message sent by the first UE in the cell under the first base station that is forwarded by the second UE in the second cell, and the first resource request message is the first The D2D communication group in which the UE is located performs a communication resource request, and the determined communication resource is forwarded to the first UE by using the second UE, so that each UE in the D2D communication group performs a corresponding D2D communication service by using the communication resource, Effectively reduce or avoid interference with existing cellular communications.

 Figure 15 is a schematic structural diagram of a device (e.g., user equipment UE) according to an embodiment of the present invention. As shown in FIG. 15 , the device may be a user equipment that initiates D2D communication, for example, may be used to perform the method shown in FIG. 1 . The following uses the first user equipment UE as an example to introduce the details, and examples. See also the above-described embodiments of the present invention, such as the embodiment shown in FIG.

The foregoing first user equipment UE includes: a transmitter 1501, a receiver 1502, and a processor 1503, where: the transmitter 1501 is configured to send a discovery message to at least one second UE in the wireless network, where the discovery message is used to send the at least one The second UE indicates that the first UE supports the device-to-device D2D communication service; the discovery message carries the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group; and the receiver 1502 is configured to receive the second UE An application message, the first mentioned above The application message carries the user identifier of the second UE, where the first application message is used by the second UE to join the D2D communication group, and the processor 1503 is configured to acquire the first application message sent by the second UE. The communication resource for performing communication in the D2D communication group; the transmitter 1501 is further configured to send, according to the user identifier of the second UE, the communication resource used by the D2D communication group to perform communication to the second UE in the D2D communication group. And instructing each UE in the D2D communication group to perform the D2D communication service corresponding to the service identifier by using the foregoing communication resource.

 Based on the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

 The processor 1503 is specifically configured to:

 Instructing the transmitter 1501 to send a first resource request message to the first base station according to the first application message sent by the second UE, where the first UE is in the first resource request message in the cell coverage area of the first base station. Carrying the group identifier of the above D2D communication group;

 Instructing the receiver 1502 to receive the first resource response message sent by the first base station, where the first resource response message carries a first communication resource used for performing communication by the D2D communication group; the first communication resource is the first base station. And determining, according to the group identifier of the D2D communication group and the current network resource condition of each of the cells in the first base station; or, the first communication resource is that the first base station passes the first group according to the group identifier of the D2D communication group. The base stations adjacent to the base station are jointly negotiated and determined.

 Based on the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

 The first resource response message further includes a first cell list, where the first cell list includes a cell identifier corresponding to the at least one cell, where the first cell list is used to indicate the first reserved resource used by the D2D communication group to perform communication. The first cell list is determined by the first base station, or the first cell list is determined by the first base station and the base station adjacent to the first base station.

 Based on the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

The receiver 1502 is further configured to receive a second application message sent by the third UE, where the second application message carries a user identifier of the third UE and a cell identifier of a cell where the third UE is located; the processor 1503 Also used if the cell identifier of the cell where the third UE is located is included in the In the first cell list, the third UE is notified to perform the D2D communication service corresponding to the service identifier by using the first reserved resource, and instruct the first UE to use the third UE as the D2D communication. One of the second UEs in the group is managed.

 Based on the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

 The receiver 1502 is further configured to receive a second application message sent by the third UE, where the second application message carries the user identifier of the third UE and the cell identifier of the cell where the third UE is located; the processor 1503 is further used by And if the cell identifier of the cell where the third UE is located is not included in the first cell list, the transmitter 1501 is configured to send a second resource request message to the first base station; and the second resource request message carries the D2D communication group. The group identifier and the cell identifier of the cell where the third UE is located, to request the first base station to re-allocate communication resources to the D2D communication group according to the cell identifier of the cell where the third UE is located, and instruct the first UE to use the third The UE is managed as one of the foregoing second UEs in the D2D communication group;

 The receiver 1502 is further configured to receive the second resource response message sent by the first base station, where the second resource response message carries a second communication resource and a second cell list for performing communication by the D2D communication group; The cell list includes the cell identifier of the cell where the third UE is located. The transmitter 1501 is further configured to send, to the second UE in the D2D communication group, a second communication resource for performing communication by using the D2D communication group, to notify the foregoing. Each UE in the D2D communication group performs the D2D communication service corresponding to the service identifier by using the second communication resource.

 Based on the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

 The first application message further carries the cell identifier of the cell where the second UE is located. The processor 1503 is further configured to: when the first UE performs the D2D communication, measure the network signal strength of the cell where the first UE is located, and/or Or network signal quality;

 If the network signal strength of the cell where the first UE is located is lower than the first signal strength threshold, and/or the network signal quality is lower than the first signal quality threshold, the processor 1503 is configured according to the cell identifier of the cell where each of the second UEs is located. One of the foregoing second UEs is selected as the fourth UE;

The transmitter 1501 is configured to send, to the first base station, a first D2D communication resource interface UE change message, where the first D2D communication resource interface UE change message carries the group identifier of the D2D communication group, and each UE in the D2D communication group User identifier and the cell identifier of the cell where the fourth UE is located The first base station is notified by the fourth UE as a communication representative to manage the first communication resource corresponding to the subsequent D2D communication group; and/or

 The transmitter 1501 sends a second D2D communication resource interface UE change message to the fourth UE, where the second D2D communication resource interface UE change message carries the group identifier of the D2D communication group and the user identifier of each UE in the D2D communication group. And the cell identifier of the cell where the first UE is located; and the fourth UE is notified as the communication representative to manage the first communication resource corresponding to the subsequent D2D communication group.

 Based on the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

 The processor 1503, according to the cell identifier of each cell where the second UE is located, from each of the foregoing second

Selecting one UE as the fourth UE in the UE includes:

 The processor 1503 instructs the transmitter 1501 to send a query request to the second UE in the D2D communication group according to the cell identifier of the cell where the second UE is located;

 The processor 1503 instructs the receiver 1502 to receive the query response sent by the second UE, where the query response carries the network signal strength and/or the network signal quality of the cell where the second UE is located, and the processor 1503 uses the foregoing second UE. Selecting the second UE that has the strongest network signal strength or network signal quality of the cell in the cell as the fourth UE, or the processor 1503 selects the network signal strength and the network signal of the cell in the second UE. The second UE having the strongest integrated value of the quality is used as the fourth UE.

 Based on the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

 The first application message further carries the cell identifier of the cell where the second UE is located;

The processor 1503 is further configured to measure network signal strength and/or network signal quality of the cell where the second UE is located according to the cell identifier of the cell where the second UE is located, and select one UE from each of the second UEs according to the measurement result. And as the fifth UE, instructing the sender 1501 to send the first resource request message to the fifth UE, to notify the fifth UE to manage the communication resource of the D2D communication group by using the fifth UE as a communication representative; and instructing the foregoing And transmitting, by the UE, the first resource request message to the base station to which the cell in which the fifth UE is located, and requesting the base station to which the cell where the fifth UE is located to allocate the D2D communication service corresponding to the service identifier for the D2D communication group. Communication resources;

 The processor 1503 instructs the receiver 1502 to receive the communication resource sent by the fifth UE for performing the communication by the D2D communication group.

 Based on the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

 The processor 1503 is further configured to: when the first UE performs the foregoing D2D communication, measure network signal strength and/or network signal quality of the cell where the first UE is located and the neighboring cell of the cell where the first UE is located, and according to The measurement result is re-selected or switched to a new cell;

 The processor 1503 is further configured to determine, by the base station to which the new cell where the first UE is located, the new first base station, and instruct the transmitter 1501 to send a D2D communication resource cell change message to the first base station; The resource cell change message carries the group identifier of the D2D communication group and the user identifier of the first UE, to notify the first base station that the first UE in the new cell continues to be the communication representative to the foregoing D2D communication group. Management of communication resources; or,

 The processor 1503 instructs the transmitter 1501 to send the D2D communication resource cell change message to the first base station to which the new cell belongs by using the base station to which the original cell belongs in the process of the reselection or handover to notify the first base station The first UE in the new cell continues to manage the communication resources of the subsequent D2D communication group as a communication representative.

 Based on the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

 The receiver 1502 is further configured to: when the first UE performs the D2D communication, receive the first resource change message sent by the first base station; and the first resource change message carries the first change communication resource;

 The transmitter 1501 is further configured to send the first changed communication resource carried in the first resource change message to the second UE in the D2D communication group, so that each of the second UEs in the D2D communication group uses the foregoing The first change communication resource performs the D2D communication service corresponding to the service identifier; and the processor 1503 is instructed to update the cell identifier of the cell where the first change communication resource is located to the first cell list corresponding to the D2D communication group.

On the basis of the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include: The receiver 1502 is further configured to: after the fourth UE is used as the communication representative, to manage the first communication resource corresponding to the D2D communication group, and the first UE receives the fourth UE in the process of performing the D2D communication. Sending a second resource change message; the second resource change message carries the second change communication resource;

 The processor 1503 is further configured to perform the D2D communication service corresponding to the service identifier by using the second changed communication resource.

 Based on the functional structure shown in this embodiment, for example, the foregoing first user equipment UE may further include:

 The receiver 1502 is further configured to: after the fifth UE is used as a communication representative, to manage the communication resource of the D2D communication group, and the first UE receives the first UE sent in the process of performing the D2D communication. a third resource change message; the third resource change message carries the third change communication resource;

 The processor 1503 is further configured to perform the D2D communication service corresponding to the service identifier by using the third changed communication resource.

 The foregoing steps in the embodiment shown in FIG. 6-9 are implemented by using the device shown in the embodiment in the first UE. The specific implementation process is not described herein.

 The device provided in this embodiment may acquire information about communication resources required for each second UE to perform D2D communication service according to an application message sent by each second UE received from the network, so that each UE in the D2D communication group utilizes The communication resources perform corresponding D2D communication services, effectively reducing or avoiding interference to existing cellular network communications.

 FIG. 16 is a schematic structural diagram of a device (for example, a user equipment UE) according to another embodiment of the present invention. As shown in FIG. 16, the device may be a second UE that receives the first UE to initiate the D2D communication group service in the D2D communication group, and may be used, for example, to perform the method shown in FIG. The second user equipment UE is taken as an example. For details and examples, reference may also be made to the foregoing embodiments of the present invention, such as the embodiment shown in FIG. 2.

The foregoing second user equipment UE includes: a receiver 1601 and a transmitter 1602, where: the receiver 1601 is configured to receive a discovery message sent by the first UE from the wireless network; and the discovery message carries the group identifier of the device-to-device D2D communication group. a service identifier corresponding to the D2D communication group; the sender 1602 is configured to send a first application message to the first UE according to the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group, where the first application message is carried Use of the second UE The first application message is used by the second UE to join the D2D communication group; the receiver 1601 is further configured to receive, by the first UE, the third UE, according to the user identifier of the second UE, to perform the D2D communication group execution. Communicating the communication resource, and instructing the second UE to perform the D2D communication service corresponding to the service identifier by using the communication resource.

 Based on the functional structure shown in this embodiment, for example, the foregoing second user equipment UE may further include:

 The receiver 1601 is further configured to: when the second UE performs the D2D communication, receive the changed communication resource used by the first UE for performing the D2D communication group to perform communication, and instruct the second UE to use the changed communication resource. The D2D communication service corresponding to the foregoing service identifier is executed. On the basis of the functional structure shown in this embodiment, for example, the foregoing second user equipment UE may further include:

 The first application message further carries the cell identifier of the cell where the second UE is located;

 The receiver 1601 is configured to receive, by the second UE, a second D2D communication resource interface UE change message sent by the first UE when the second UE is in the process of performing the D2D communication, where the second D2D communication resource interface UE is changed. The message carries the group identifier of the D2D communication group, the user identifier of each UE in the D2D communication group, and the cell identifier of the cell where the first UE is located; the fourth UE is the foregoing first UE according to each of the foregoing D2D communication groups. a cell identifier of a cell in which the second UE is located, and a UE selected from each of the foregoing second UEs;

 The transmitter 1602 is further configured to: when the second UE is used as the fourth UE, send the second D2D communication resource interface UE change message to the second base station to which the second UE is located, to notify the second base station The second UE of the fourth UE, as the communication representative, manages the foregoing communication resources of the subsequent D2D communication group.

 Based on the functional structure shown in this embodiment, for example, the foregoing second user equipment UE may further include:

 Before the second UE receives the second D2D communication resource interface UE change message sent by the first UE by using the receiver 1601 in the process of performing the foregoing D2D communication,

 The receiver 1601 is configured to receive the query request sent by the first UE, and the sender 1602 is configured to return a query response to the first UE, where the query response carries the network signal strength and/or network signal quality of the cell where the second UE is located. .

On the basis of the functional structure shown in this embodiment, for example, the foregoing second user equipment UE may also To further include:

 After the communication resource corresponding to the D2D communication group is managed by the second UE as the communication representative, and the second UE is in the process of performing the D2D communication,

 The receiver 1602 is further configured to receive a second resource change message sent by the second base station to which the second UE is located, where the second resource change message carries the second change communication resource, where the transmitter 1602 is further used to Each of the UEs in the D2D communication group transmits the second changed communication resource to notify each of the UEs to perform the D2D communication service corresponding to the service identifier by using the second changed communication resource.

 The foregoing steps in the embodiment shown in FIG. 6-7 and FIG. 9 are implemented by the device shown in this embodiment, and the specific implementation process is not described herein.

 The device provided in this embodiment performs the corresponding D2D communication service by receiving the communication resource required for the D2D communication service for each second UE acquired by the first UE from the network as the initiator of the D2D communication service group. Effectively reduce or avoid interference with existing cellular communications.

 FIG. 17 is a schematic structural diagram of a device (for example, a user equipment UE) according to still another embodiment of the present invention. As shown in FIG. 17, the foregoing device may be a second UE that initiates a D2D communication group service by using a first UE in a certain D2D communication group, and may be used, for example, to perform the method shown in FIG. The second user equipment UE is taken as an example. For details and examples, reference may also be made to the foregoing embodiments of the present invention, such as the embodiment shown in FIG.

 The foregoing second user equipment UE specifically includes: a receiver 1701 and a transmitter 1702; wherein: the receiver 1701 is configured to receive a discovery message sent by the first UE from the wireless network, where the discovery message carries a device-to-device D2D communication group Identifying a service identifier corresponding to the D2D communication group;

 The transmitter 1702 is configured to send, by using the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group, a first application message to the first UE, where the first application message carries the user identifier of the second UE and the foregoing a cell identifier of the cell where the UE is located; the first application message is used by the second UE to join the D2D communication group;

The receiver 1701 is further configured to receive, by using the second UE, the first resource request message sent by the first UE, where the first resource request message carries the group identifier of the D2D communication group and the D2D communication group. a user identifier of each UE, to notify the fifth UE to manage the communication resource of the D2D communication group by using the communication unit as the communication representative; the fifth UE is the first UE And the transmitter 1702 is further configured to: when the second UE is the fifth UE, to the cell to which the second UE is located, according to the cell identifier of the cell where the second UE is located. The second base station forwards the first resource request message to request the second base station to allocate a communication resource for the D2D communication group to perform the D2D communication service corresponding to the service identifier.

 The receiver 1701 is further configured to receive, by using the second UE, the first resource response message sent by the second base station, where the first resource response message carries a communication resource used by the D2D communication group to perform communication. The communication resource is determined by the second base station according to the group identifier of the D2D communication group and the network resource condition of each cell in the current second base station; or, the communication resource is the group of the second base station according to the D2D communication group. The identifier is determined after being negotiated by the base station adjacent to the second base station;

 The transmitter 1702 is further configured to: when the second UE is used as the fifth UE, send communication resources for performing communication by using the D2D communication group to each UE in the D2D communication group according to a user identifier of each UE in the D2D communication group, to The UE is notified to use the communication resource to perform the D2D communication service corresponding to the service identifier.

 Based on the functional structure shown in this embodiment, for example, the foregoing second user equipment UE may further include:

 The foregoing first resource response message further includes a cell list, where the cell list includes a cell identifier corresponding to at least one cell, where the cell list is used to indicate a cell in which the reserved resource used by the D2D communication group performs communication; The foregoing determining, by the second base station, the cell list is determined by the second base station after being negotiated by the base station adjacent to the second base station.

 Based on the functional structure shown in this embodiment, for example, the foregoing second user equipment UE may further include:

 The receiver 1701 is further configured to receive a third resource change message sent by the second base station to which the cell where the fifth UE is located, where the third resource change message carries a third change communication resource, where the transmitter 1702 is further used to Each of the UEs in the D2D communication group transmits the third changed communication resource to notify each of the UEs to perform the D2D communication service corresponding to the service identifier by using the third changed communication resource.

The foregoing step of using the second UE as the execution subject in the embodiment shown in FIG. 8 can be adopted in this embodiment. The device implementation is shown, and its specific implementation process will not be described herein.

 The device provided in this embodiment may replace the first UE from the network when the initiator of the D2D communication service is initiated, that is, the first UE cannot obtain the communication resources required for the second UE to perform the D2D communication service from the network. The foregoing communication resources are obtained, so that each UE in the D2D communication group performs corresponding D2D communication service through the communication resource, thereby effectively reducing or avoiding interference to existing cellular network communication.

 FIG. 18 is a schematic structural diagram of a device (for example, a base station) according to still another embodiment of the present invention. As shown in FIG. 18, the foregoing device may be a base station to which a user equipment UE that is initiating D2D communication belongs, for example, may be used to perform the method as shown in FIG. For a description, details and examples, reference may also be made to the above-described embodiments of the present invention, such as the embodiment shown in FIG.

 The foregoing first base station specifically includes: a receiver 1801, a processor 1802, and a transmitter 1803; wherein: the receiver 1801 is configured to receive a first resource request message sent by the first UE, where the first UE is in a cell covered by the first base station The first resource request message carries the group identifier of the D2D communication group, and the processor 1802 is configured to determine, according to the group identifier of the D2D communication group and the current network resource status of each cell in the first base station, that the D2D communication is used. The first communication resource is configured to perform communication; or the processor 1802 determines the first communication resource after being negotiated by the base station adjacent to the first base station according to the group identifier of the D2D communication group; and the transmitter 1803 is configured to The first UE sends a first resource response message, where the first resource response message carries the first communication resource used for performing communication by the D2D communication group.

 Based on the functional structure shown in this embodiment, for example, the foregoing first base station may further include:

 The first resource response message further includes a first cell list, where the first cell list includes a cell identifier corresponding to the at least one cell, where the first cell list is used to indicate that the D2D communication group performs the first reservation used by the communication. The cell in which the resource is located; the first cell list is determined by the processor 1802, or the first cell list is determined by the processor 1802 and the base station adjacent to the first base station jointly negotiate.

 Based on the functional structure shown in this embodiment, for example, the foregoing first base station may further include:

The receiver 1801 is further configured to receive the second resource request message sent by the first UE, where the second resource request message carries the group identifier of the D2D communication group and a small cell where the third UE is located. a cell identifier, where the cell identifier of the cell where the third UE is located is not included in the first cell list, and the processor 1802 is further configured to use, according to the cell identifier of the cell where the third UE is located, the group identifier of the D2D communication group, and the current The network resource of each cell in the first base station is re-allocated communication resources to the D2D communication group; or the processor 1802 is configured to pass the first identifier according to the cell identifier of the cell where the third UE is located and the group identifier of the D2D communication group. Relocating the communication resource to the D2D communication group after the base stations adjacent to the base station jointly negotiate;

 The foregoing transmitter 1803 is further configured to send a second resource response message to the first UE, where the second resource response message carries the communication resource and the second cell list that are re-allocated for the D2D communication group; The cell identifier of the cell where the third UE is located is included.

 Based on the functional structure shown in this embodiment, for example, the foregoing first base station may further include:

 The receiver 1801 is further configured to receive the first D2D communication resource interface UE change message sent by the first UE, where the first D2D communication resource interface UE change message carries the group identifier of the D2D communication group, and each of the D2D communication groups The user identifier of the UE and the cell identifier of the cell where the fourth UE is located; the first D2D communication resource interface UE change message is used to notify the first base station that the first UE is used by the fourth UE as a communication representative to the first D2D communication group corresponding to the first Management of communication resources;

 The transmitter 1803 is further configured to send, according to the cell identifier of the cell where the fourth UE is located, the first D2D communication resource interface UE change message to the base station to which the fourth UE is located, to notify the cell to which the fourth UE is located. The base station is configured by the fourth UE as a communication representative to manage the foregoing communication resources of the foregoing D2D communication group; or

 The receiver 1801 receives the second D2D communication resource interface UE change message sent by the fourth UE that is sent by the base station to which the fourth UE belongs, and the second D2D communication resource interface UE change message carries the group of the D2D communication group. The identifier, the user identifier of the fourth UE, and the cell identifier of the cell where the fourth UE is located, so that the first base station learns that the fourth UE is used as a communication representative to manage the communication resource of the subsequent D2D communication group.

 Based on the functional structure shown in this embodiment, for example, the foregoing first base station may further include:

The receiver 1801 is further configured to receive, by the third base station, the D2D communication resource cell change message sent by the first UE, where the D2D communication resource cell change message carries the D2D communication. The group identifier of the group and the user identifier of the first UE are used to enable the first base station to learn that the first UE under the third base station continues to be used as a communication representative to manage the communication resources of the subsequent D2D communication group.

 Based on the functional structure shown in this embodiment, for example, the foregoing first base station may further include:

 The first UE is configured to send the first resource change message to the first UE, where the first UE performs the D2D communication, and the first resource change message carries the changed first communication resource. Transmitting, by the first UE, information of the changed first communication resource to each UE in the D2D communication group, to notify each UE to perform the service of the D2D communication by using the changed first communication resource; and instructing the first The UE updates the cell identifier of the cell where the first change communication resource is located to the first cell list corresponding to the D2D communication group.

 The foregoing steps in the embodiment shown in FIG. 6-9 are performed by using the first base station as the execution entity, and the specific implementation process is not described herein.

 The device provided in this embodiment, after receiving the user equipment, that is, the first resource request message sent by the first UE, according to the group identifier of the D2D communication group carried in the message and the network resource status of each cell under the current first base station Determining a first communication resource for communication by the D2D communication group; or determining, according to the group identity of the D2D communication group, the first communication resource after being mutually negotiated by the base station adjacent to the first base station; and determining the first communication The resource is sent to the user equipment, so that each UE in the D2D communication group performs corresponding D2D communication service through the communication resource, thereby effectively reducing or avoiding interference to the existing cellular network communication.

 FIG. 19 is a schematic structural diagram of a device (for example, a base station) according to still another embodiment of the present invention. As shown in FIG. 19, the device may be a base station to which a cell in which a second UE is currently in the D2D communication group, and may be used to perform a method as shown in FIG. The second base station is taken as an example for the foregoing device. For details and examples, reference may also be made to the foregoing embodiment of the present invention, such as the embodiment shown in FIG.

The foregoing second base station specifically includes: a receiver 1901, a processor 1902, and a transmitter 1903; wherein: the receiver 1901 is configured to receive a first resource request message sent by the second UE and sent by the second UE; The first resource request message carries the group identifier of the D2D communication group; the first resource request message is used by the first UE to perform the communication resource application for the D2D communication group where the first UE is located; 1902 is used for group labeling according to the above D2D communication group And determining, by the current network resource condition of each cell in the second base station, a communication resource used for communication by the D2D communication group; or, the processor 1902 is adjacent to the second base station according to the group identifier of the D2D communication group. The base station determines the communication resource after the negotiation by the base station; the transmitter 1903 is configured to send the first resource response message to the second UE, where the first resource response message carries the communication resource used for performing communication by the D2D communication group.

 Based on the functional structure shown in this embodiment, for example, the foregoing second base station may further include:

 The foregoing first resource response message further includes a cell list, where the cell list includes a cell identifier corresponding to at least one cell, where the cell list is used to indicate a cell in which the reserved resource used by the D2D communication group performs communication; The processor 1902 determines that the cell list is determined by the processor 1902 and the base station adjacent to the second base station.

 The steps of the embodiment shown in FIG. 6-9 in which the second base station is the execution entity may be implemented by using the device shown in this embodiment, and detailed description thereof is not described herein.

 The device provided in this embodiment may receive the first resource request message sent by the first UE in the cell under the first base station that is forwarded by the second UE in the cell under the second base station; and according to the first resource request message, The D2D communication group in which the UE is located performs a communication resource application; and the determined communication resource is forwarded to the first UE by using the second UE, so that each UE in the D2D communication group performs a corresponding D2D communication service by using the communication resource. Effectively reduce or avoid interference with existing cellular communications.

 The embodiment of the invention further provides a system comprising the apparatus described in the above Figures 10-14.

 Another embodiment of the present invention provides a system, including the apparatus described above with reference to Figures 15-19. It will be clearly understood by those skilled in the art that for the convenience and brevity of the description, only the division of each functional module described above is exemplified. In practical applications, the above function assignment can be completed by different functional modules as needed. The internal structure of the device is divided into different functional modules to perform all or part of the functions described above. For the specific working process of the system, the device and the unit described above, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative, for example, the division of the above modules or units is only a logical function division. There may be additional ways of dividing the actual implementation, for example multiple units or components may be combined or integrated into another system, or some features may be omitted or not implemented. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

 The units described above as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

 In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

 The above integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application, in essence or the contribution to the prior art, or all or part of the above technical solution may be embodied in the form of a software product stored in a storage medium. The instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

 The above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the embodiments are modified, or some of the technical features are equivalently replaced; and the modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

Rights request A communication resource management method, characterized in that:  The first user equipment UE sends a discovery message to at least one second UE in the wireless network, the discovery message is used to indicate to the at least one second UE that the first UE supports device-to-device D2D communication service; The message carries the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group;  The first UE receives the first application message sent by the second UE, where the first application message carries the user identifier of the second UE, and the first application message is used by the second UE to apply for joining. The D2D communication group;  Obtaining, by the first UE, according to the first application message sent by the second UE, a communication resource in which the D2D communication group performs communication;  Transmitting, by the first UE, a communication resource for performing communication by the D2D communication group to the second UE in the D2D communication group according to a user identifier of the second UE, to notify the D2D communication group Each UE performs the D2D communication service corresponding to the service identifier by using the communication resource.  2. The method according to claim 1, wherein the first UE is according to the second The first application message sent by the UE acquires communication resources used for communication by the D2D communication group, and includes:  Transmitting, by the first UE, a first resource request message to the first base station according to the first application message sent by the second UE, where the first UE is within a cell coverage area covered by the first base station, Carrying a group identifier of the D2D communication group in a resource request message;  Receiving, by the first UE, a first resource response message sent by the first base station, where the first resource response message carries a first communication resource used for performing communication by the D2D communication group; Determining, by the first base station, a group identity of the D2D communication group and a network resource condition of each cell in the current first base station; or, the first communication resource is the first base station according to the D2D communication The group identity of the group is determined after being negotiated by the base station adjacent to the first base station. The method according to claim 2, wherein the first resource response message further includes a first cell list; the first cell list includes a cell identifier corresponding to at least one cell, and the first cell The list is used to indicate a cell where the first reserved resource utilized by the D2D communication group to perform communication; the first cell list is determined by the first base station, or the first cell The list is determined after the first base station and the base station adjacent to the first base station jointly negotiate.  The method according to claim 3, wherein the method further includes: the first UE receiving a second application message sent by a third UE; and the second application message carrying the third UE User identifier and a cell identifier of a cell in which the third UE is located;  If the cell identifier of the cell where the third UE is located is included in the first cell list, the first UE notifies the third UE to perform the service identifier corresponding to the first reserved resource. D2D communication service, and the first UE manages the third UE as one of the second UEs in the D2D communication group. The method according to claim 3, wherein the method further includes: the first UE receiving a second application message sent by a third UE; and the second application message carrying the third UE User identifier and a cell identifier of a cell in which the third UE is located;  If the cell identifier of the cell where the third UE is located is not included in the first cell list, the first UE sends a second resource request message to the first base station; a group identifier of the D2D communication group and a cell identifier of a cell where the third UE is located, to request the first base station to re-allocate communication resources for the D2D communication group according to a cell identifier of a cell where the third UE is located, and The first UE manages the third UE as one of the second UEs in the D2D communication group;  Receiving, by the first UE, a second resource response message sent by the first base station, where the second resource response message carries a second communication resource and a second cell list for performing communication by the D2D communication group; The second cell list includes a cell identifier of a cell where the third UE is located;  Transmitting, by the first UE, a second communication resource for performing communication by the D2D communication group to the second UE in the D2D communication group, to notify each UE in the D2D communication group to utilize the second communication The resource performs the D2D communication service corresponding to the service identifier.  The method according to any one of claims 2 to 5, wherein the first application message further carries a cell identifier of a cell where the second UE is located; the method further includes:  The first UE measures network signal strength and/or network signal quality of a cell where the first UE is located in the process of performing the D2D communication; If the network signal strength of the cell where the first UE is located satisfies the first condition, and/or the network signal quality meets the second condition, the first UE is configured according to the cell identifier of the cell where the second UE is located. Selecting one UE from the second UE as the fourth UE;  If the network signal strength of the cell where the first UE is located is lower than the first signal strength threshold, and/or the network signal quality is lower than the first signal quality threshold, the first UE is configured according to the cell where the second UE is located. The cell identifier selects one UE from each of the second UEs as the fourth UE;  The first UE sends a first D2D communication resource interface UE change message to the first base station, where the first D2D communication resource interface UE change message carries the group identifier of the D2D communication group, and the D2D communication group a user identifier of each UE and a cell identifier of a cell in which the fourth UE is located; to notify the first base station that the fourth UE is used as a communication representative to manage the first communication resource corresponding to the subsequent D2D communication group ; and / or,  Transmitting, by the first UE, a second D2D communication resource interface UE change message to the fourth UE, where the second D2D communication resource interface UE change message carries the group identifier of the D2D communication group, and the D2D communication group The user identifier of each UE and the cell identifier of the cell where the first UE is located; to notify the fourth UE to manage the first communication resource corresponding to the subsequent D2D communication group by using the communication unit as the communication representative.  The method according to claim 6, wherein the first UE selects one UE from each of the second UEs as a fourth UE according to a cell identifier of a cell in which the second UE is located: Sending, by the first UE, a query request to the second UE in the D2D communication group according to a cell identifier of a cell where the second UE is located;  Receiving, by the first UE, a query response sent by the second UE, where the query response carries network signal strength and/or network signal quality of a cell where the second UE is located;  The first UE selects, as the fourth UE, the second UE that has the strongest network signal strength or the network signal quality of the cell in the second UE, or the first UE from each of the second UEs. The second UE that selects one of the second UEs has the strongest integrated network signal strength and network signal quality as the fourth UE.  The method according to claim 1, wherein the first application message further carries a cell identifier of a cell where the second UE is located;  Acquiring, by the first UE, the communication resource used by the D2D communication group to perform communication according to the first application message sent by the second UE, including: The first UE measures the network signal strength and/or the network signal quality of the cell where the second UE is located according to the cell identifier of the cell where the second UE is located, and obtains the second UE according to the measurement result. Selecting one UE as the fifth UE, and sending the first resource request message to the fifth UE, to notify the fifth UE to manage the communication resource of the D2D communication group by using the fifth UE as a communication representative And instructing the fifth UE to forward the first resource request message to the base station to which the cell in which the fifth UE belongs, and requesting the base station to which the cell in which the fifth UE belongs to allocate the D2D communication group execution station a communication resource corresponding to the D2D communication service corresponding to the service identifier;  The first UE receives a communication resource sent by the fifth UE for performing communication by the D2D communication group.  The method according to any one of claims 2 to 5, further comprising: the first UE measuring a cell in which the first UE is located and the first in a process of performing the D2D communication The network signal strength and/or network signal quality of the neighboring cell of the cell in which the UE is located, and reselected or switched to the new cell according to the measurement result;  Determining, by the first UE, a base station to which the new cell in which the first UE belongs is the new first base station, and transmitting a D2D communication resource cell change message to the first base station; the D2D communication resource The cell change message carries the group identifier of the D2D communication group and the user identifier of the first UE, to notify the first base station that the first UE under the new cell continues to be the communication representative for the subsequent The communication resources of the D2D communication group are managed; or  Sending, by the base station to which the original cell belongs, the D2D communication resource cell change message to the first base station to which the new cell belongs, in the process of the reselection or handover, to notify the first base station The first UE under the new cell continues to manage the communication resources of the subsequent D2D communication group as a communication representative.  The method according to any one of claims 2 to 5, further comprising: receiving, by the first UE, the first resource change sent by the first base station in the process of performing the D2D communication The first resource change message carries the first change communication resource;  Transmitting, by the first UE, the first change communication resource carried in the first resource change message to the second UE in the D2D communication group, so that each of the D2D communication groups The second UE uses the first change communication resource to perform the D2D communication service corresponding to the service identifier; and the first UE updates the cell identifier of the cell where the first change communication resource is located to the corresponding location of the D2D communication group. In the first cell list. The method according to claim 6, wherein after the fourth UE is used as a communication representative to manage the first communication resource corresponding to the D2D communication group, In the process of performing the D2D communication, the first UE further includes:  Receiving, by the first UE, a second resource change message sent by the fourth UE, where the second resource change message carries a second change communication resource;  The first UE performs the D2D communication service corresponding to the service identifier by using the second change communication resource.  The method according to claim 8, wherein after the fifth UE is used as a communication representative to manage the communication resource of the D2D communication group, and the first UE is in operation In the process of D2D communication, it also includes:  Receiving, by the first UE, a third resource change message sent by the fifth UE, where the third resource change message carries a third change communication resource;  The first UE performs the D2D communication service corresponding to the service identifier by using the third change communication resource.  13. A communication resource management method, characterized in that:  The second user equipment receives the discovery message sent by the first UE from the wireless network; the discovery message carries the group identifier of the device to the device D2D communication group and the service identifier corresponding to the D2D communication group;  The second UE sends a first application message to the first UE according to the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group, where the first application message carries the second UE a user identifier; the first application message is used by the second UE to join the D2D communication group;  The second UE receives a communication resource that is sent by the first UE according to the user identifier of the second UE for performing communication by the D2D communication group, and performs D2D communication corresponding to the service identifier by using the communication resource. business.  14. The method according to claim 13, further comprising:  Receiving, by the second UE, the changed communication resource sent by the first UE for performing communication by the D2D communication group, and performing, by using the change communication resource, the service identifier corresponding to the second UE, in the process of performing the D2D communication D2D communication service.  The method according to claim 13 or 14, wherein the first application message further carries a cell identifier of a cell where the second UE is located; the method further includes: Receiving, by the second UE, the first UE as a fourth UE in the process of performing the D2D communication Sending a second D2D communication resource interface UE change message, where the second D2D communication resource interface UE change message carries the group identifier of the D2D communication group, the user identifier of each UE in the D2D communication group, and the first a cell identifier of a cell in which the UE is located; the fourth UE is a UE selected from each of the second UEs according to a cell identifier of a cell in which the second UE is located in the D2D communication group ;  Transmitting, by the second UE that is the fourth UE, the second D2D communication resource interface UE change message to the second base station to which the second UE is located, to indicate that the second base station is used as the first The second UE of the four UEs manages the communication resources of the subsequent D2D communication group as a communication representative.  The method according to claim 15, wherein the second UE is performing the Before receiving the second D2D communication resource interface UE change message sent by the first UE in the process of the D2D communication, the method further includes:  The second UE that is the fourth UE receives the query request sent by the first UE, and the second UE that is the fourth UE sends a query response to the first UE, where the query response is Carrying network signal strength and/or network signal quality of the cell where the second UE is located.  The method according to claim 15 or 16, wherein after the second UE is used as a communication representative to manage communication resources corresponding to the D2D communication group, the second UE is In the process of performing the D2D communication, the method further includes:  The second UE receives the second resource change message sent by the second base station to which the second UE is located; the second resource change message carries the second change communication resource;  And transmitting, by the second UE, the second change communication resource to each UE in the D2D communication group, to notify each UE to perform the D2D communication service corresponding to the service identifier by using the second change communication resource.  18. A communication resource management method, characterized in that:  The second user equipment receives the discovery message sent by the first UE from the wireless network; the discovery message carries the group identifier of the device to the device D2D communication group and the service identifier corresponding to the D2D communication group; The second UE sends a first application message to the first UE according to the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group, where the first application message carries the second UE a user identifier and a cell identifier of a cell where the second UE is located; the first application message is used by the The second UE applies to join the D2D communication group;  Receiving, by the second UE, the first resource request message sent by the first UE, where the first resource request message carries the group identifier of the D2D communication group and each UE in the D2D communication group. a user identifier, to notify the fifth UE to manage the communication resource of the D2D communication group by the communication UE; the fifth UE is the first UE according to the cell where each second UE is located a cell identifier selected from each of the second UEs;  The second UE that is the fifth UE forwards the first resource request message to the second base station to which the cell to which the cell belongs, to request the second base station to allocate the service identifier for the D2D communication group to be executed. Corresponding communication resources of the D2D communication service;  Receiving, by the second UE of the fifth UE, a first resource response message sent by the second base station, where the first resource response message carries a communication resource used by the D2D communication group to perform communication; The communication resource is determined by the second base station according to the group identifier of the D2D communication group and the network resource condition of each cell under the current second base station; or, the communication resource is the second base station according to the D2D The group identifier of the communication group is determined after being negotiated by the base station adjacent to the second base station;  Transmitting, by the second UE, the second UE, a communication resource for performing communication by the D2D communication group to each UE in the D2D communication group according to a user identifier of each UE in the D2D communication group, to notify each The UE performs the D2D communication service corresponding to the service identifier by using the communication resource.  The method according to claim 18, wherein the first resource response message further includes a cell list; the cell list includes a cell identifier corresponding to at least one cell, and the cell list is used to indicate the The cell in which the reserved resource used by the D2D communication group performs communication is determined by the second base station, or the cell list is that the second base station is adjacent to the second base station. The base stations are determined after mutual negotiation.  The method according to claim 18 or 19, wherein after the fifth UE is used as a communication representative to manage communication resources corresponding to the D2D communication group, the fifth UE is In the process of performing the D2D communication, the method further includes:  Receiving, by the fifth UE, a third resource change message sent by the second base station to which the cell where the fifth UE is located; the third resource change message carrying the third change communication resource; Transmitting, by the fifth UE, the third change communication resource to each UE in the D2D communication group, to Each of the UEs uses the third changed communication resource to perform a D2D communication service corresponding to the service identifier.  21. A communication resource management method, characterized in that:  The first base station receives the first resource request message sent by the first UE, where the first UE is in the cell coverage area of the first base station, and the first resource request message carries the group identifier of the D2D communication group;  Determining, by the first base station, a first communication resource used for performing communication by the D2D communication group according to a group identifier of the D2D communication group and a network resource condition of each cell under the first base station; or, the first Determining, by the base station, the first communication resource after being negotiated by the base station adjacent to the first base station according to the group identifier of the D2D communication group;  The first base station sends a first resource response message to the first UE, where the first resource response message carries the first communication resource used by the D2D communication group to perform communication.  The method according to claim 21, wherein the first resource response message further includes a first cell list; the first cell list includes a cell identifier corresponding to at least one cell, and the first cell The list is used to indicate a cell in which the first reserved resource utilized by the D2D communication group to perform communication; the first cell list is determined by the first base station, or the first cell list is the first The base station is determined after the base station adjacent to the first base station negotiates.  The method according to claim 22, further comprising:  Receiving, by the first base station, a second resource request message sent by the first UE, where the second resource request message carries a group identifier of the D2D communication group and a cell identifier of a cell where the third UE is located, where the third The cell identifier of the cell where the UE is located is not included in the first cell list;  The first base station re-allocates communication resources for the D2D communication group according to the cell identifier of the cell where the third UE is located, the group identifier of the D2D communication group, and the network resource condition of each cell under the current first base station; Or the first base station reassigns the D2D communication group after being negotiated by the base station adjacent to the first base station according to the cell identifier of the cell where the third UE is located and the group identifier of the D2D communication group. The communication resource;  The first base station sends a second resource response message to the first UE, where the second resource response message carries the communication resource and the second cell list re-allocated for the D2D communication group; The cell list includes a cell identifier of a cell where the third UE is located. The method according to any one of claims 21 to 23, wherein the first base After the sending, by the station, the first resource response message or the second resource response message to the first UE, the method further includes:  Receiving, by the first base station, a first D2D communication resource interface UE change message sent by the first UE, where the first D2D communication resource interface UE change message carries the group identifier of the D2D communication group, and the D2D communication group a user identifier of each UE in the UE and a cell identifier of a cell where the fourth UE is located; the first D2D communication resource interface UE change message is used to notify the first base station that the fourth UE is used as a communication representative to perform subsequent D2D communication The first communication resource corresponding to the group is managed;  And transmitting, by the first base station, the first D2D communication resource interface UE change message to the base station to which the fourth UE is located, according to the cell identifier of the cell where the fourth UE is located, to notify the cell where the fourth UE is located The associated base station is managed by the fourth UE as a communication representative for the communication resources of the subsequent D2D communication group; or  Receiving, by the first base station, a second D2D communication resource interface UE change message sent by the fourth UE that is sent by the base station to which the fourth UE belongs, where the second D2D communication resource interface UE change message carries the a group identifier of the D2D communication group, a user identifier of the fourth UE, and a cell identifier of a cell where the fourth UE is located, to learn that the fourth UE is used as a communication representative to the communication resource of the subsequent D2D communication group Manage.  The method according to any one of claims 21 to 23, further comprising: the first base station receiving, by the third base station, a D2D communication resource cell change message sent by the first UE, where The D2D communication resource cell change message carries the group identifier of the D2D communication group and the user identifier of the first UE, so that the first base station learns that the first UE under the third base station continues to serve as the communication. Representing management of the communication resources of the subsequent D2D communication group. The method according to any one of claims 21 to 23, further comprising: in the process of performing the D2D communication, the first base station sends the first base station to the first UE a first resource change message; the first resource change message carries the changed first communication resource; and the first UE sends the changed first communication resource information to each UE in the D2D communication group And instructing each of the UEs to perform the D2D communication service by using the changed first communication resource; and instructing the first UE to update a cell identifier of a cell where the first change communication resource is located to the D2D The first cell list corresponding to the communication group. 27. A communication resource management method, characterized in that:  The second base station receives the first resource request message sent by the first UE and is sent by the second UE; the second UE is in the cell coverage area of the second base station; and the first resource request message carries the D2D communication group. The first resource request message is used by the first UE to perform a communication resource application for the D2D communication group in which the first UE is located;  Determining, by the second base station, a communication resource used for communication by the D2D communication group according to a group identifier of the D2D communication group and a network resource condition of each cell under the current second base station; or, the second base station is configured according to The group identifier of the D2D communication group determines the communication resource after being mutually negotiated by a base station adjacent to the second base station;  The second base station sends a first resource response message to the second UE, where the first resource response message carries the communication resource used for performing communication by the D2D communication group.  The method according to claim 27, wherein the first resource response message further includes a cell list, the cell list includes a cell identifier corresponding to at least one cell, and the cell list is used to indicate the The D2D communication group performs the cell in which the reserved resource is used for communication; the cell list is determined by the second base station, or the cell list is the second base station and the base station adjacent to the second base station Determined after consultation.  29. A user equipment, comprising:  a sending module, configured to send a discovery message to the at least one second UE in the wireless network, where the discovery message is used to indicate to the at least one second UE that the first UE supports device-to-device D2D communication service; The message carries the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group;  a receiving module, configured to receive a first application message sent by the second UE, where the first application message carries a user identifier of the second UE, and the first application message is used by the second UE to apply for joining The D2D communication group;  a processing module, configured to acquire, according to the first application message sent by the second UE, a communication resource in which the D2D communication group performs communication; The sending module is further configured to send, according to the user identifier of the second UE, a communication resource for performing communication by the D2D communication group to the second UE in the D2D communication group, to notify the D2D Each UE in the communication group performs the D2D communication service corresponding to the service identifier by using the communication resource. The user equipment according to claim 29, wherein the processing module is specifically configured to:  Instructing the sending module to send a first resource request message to the first base station according to the first application message sent by the second UE, where the first UE is within a cell coverage area covered by the first base station, Carrying a group identifier of the D2D communication group in a resource request message;  Instructing the receiving module to receive the first resource response message sent by the first base station, where the first resource response message carries a first communication resource for performing communication by the D2D communication group; the first communication resource is Determining, by the first base station, a group identity of the D2D communication group and a network resource condition of each cell in the current first base station; or, the first communication resource is the first base station according to the D2D communication The group identity of the group is determined after being negotiated by the base station adjacent to the first base station.  The user equipment according to claim 30, wherein the first resource response message further includes a first cell list; the first cell list includes a cell identifier corresponding to at least one cell, the first The cell list is used to indicate a cell in which the first reserved resource used by the D2D communication group to perform communication; the first cell list is determined by the first base station, or the first cell list is the first A base station is determined by mutual agreement with the base station adjacent to the first base station.  32. The user equipment of claim 31, wherein  The receiving module is further configured to receive a second application message sent by the third UE, where the second application message carries a user identifier of the third UE and a cell identifier of a cell where the third UE is located; The module is further configured to: if the cell identifier of the cell where the third UE is located is included in the first cell list, notify the third UE to perform D2D communication corresponding to the service identifier by using the first reserved resource Traffic, and instructing the first UE to manage the third UE as one of the second UEs in the D2D communication group.  33. The user equipment of claim 31, wherein  The receiving module is further configured to receive a second application message sent by the third UE, where the second application message carries a user identifier of the third UE and a cell identifier of a cell where the third UE is located; The processing module is further configured to: if the cell identifier of the cell where the third UE is located is not included in the first cell list, instruct the sending module to send a second resource request message to the first base station; The second resource request message carries the group identifier of the D2D communication group and the third a cell identifier of the cell where the UE is located, requesting the first base station to re-allocate communication resources for the D2D communication group according to the cell identifier of the cell where the third UE is located, and instructing the first UE to use the third UE as One of the second UEs in the D2D communication group is managed;  The receiving module is further configured to receive a second resource response message that is sent by the first base station, where the second resource response message carries a second communication resource and a second cell list that are used by the D2D communication group to perform communication. The second cell list includes a cell identifier of a cell where the third UE is located; the sending module is further configured to send, to the second UE in the D2D communication group, the D2D communication group to perform The second communication resource of the communication is configured to notify each UE in the D2D communication group to perform the D2D communication service corresponding to the service identifier by using the second communication resource.  The user equipment according to any one of claims 30 to 33, wherein the first application message further carries a cell identifier of a cell where the second UE is located;  The processing module is further configured to: when the first UE performs the D2D communication, measure network signal strength and/or network signal quality of a cell where the first UE is located;  If the network signal strength of the cell where the first UE is located is lower than the first signal strength threshold, and/or the network signal quality is lower than the first signal quality threshold, the processing module is configured according to the cell of each cell where the second UE is located. Identifying, selecting one UE from each of the second UEs as the fourth UE;  The sending module is configured to send, to the first base station, a first D2D communication resource interface UE change message, where the first D2D communication resource interface UE change message carries the group identifier of the D2D communication group, and the D2D communication a user identifier of each UE in the group and a cell identifier of a cell in which the fourth UE is located; to notify the first base station that the fourth UE is used as a communication representative to the first communication resource corresponding to the subsequent D2D communication group Manage; and/or,  The sending module sends a second D2D communication resource interface UE change message to the fourth UE, where the second D2D communication resource interface UE change message carries the group identifier of the D2D communication group, and each of the D2D communication groups The user identifier of the UE and the cell identifier of the cell where the first UE is located; to notify the fourth UE to manage the first communication resource corresponding to the subsequent D2D communication group by using the same as the communication representative.  The user equipment according to claim 34, wherein the processing module selects one UE from each of the second UEs as the fourth UE according to the cell identifier of the cell in which the second UE is located, and includes: The processing module indicates the sending mode according to a cell identifier of a cell where each second UE is located Transmitting, by the block, a query request to the second UE in the D2D communication group;  The processing module instructs the receiving module to receive a query response sent by the second UE, where the query response carries network signal strength and/or network signal quality of a cell where the second UE is located; And selecting, by the second UE, the second UE that has the strongest network signal strength or the network signal quality of the cell in the second UE as the fourth UE, or the processing module selects one of each of the second UEs. The second UE having the strongest integrated network signal strength and network signal quality of the cell serves as the fourth UE.  The user equipment according to claim 29, wherein the first application message further carries a cell identifier of a cell where the second UE is located;  The processing module is further configured to measure network signal strength and/or network signal quality of the cell where the second UE is located according to the cell identifier of the cell where the second UE is located, and use the measurement result from each of the second UEs. Selecting one UE as the fifth UE, and instructing the sending module to send the first resource request message to the fifth UE, to notify the fifth UE that the fifth UE is the communication representative to the D2D communication group. The communication resource is managed; and the fifth UE is instructed to forward the first resource request message to the base station to which the cell where the fifth UE belongs, and then request the base station to which the cell in which the fifth UE belongs to allocate the D2D. The communication group executes the communication resource of the D2D communication service corresponding to the service identifier;  The processing module instructs the receiving module to receive a communication resource sent by the fifth UE for performing communication by the D2D communication group.  The user equipment according to any one of claims 30 to 33, wherein the processing module is further configured to: when the first UE performs the D2D communication, measure the location where the first UE is located. a network signal strength and/or a network signal quality of a cell and a neighboring cell of the cell where the first UE is located, and reselected or switched to a new cell according to the measurement result;  The processing module is further configured to determine, by the base station to which the new cell where the first UE belongs, as the new first base station, and instruct the sending module to send a D2D communication resource cell change message to the first base station. The D2D communication resource cell change message carries the group identifier of the D2D communication group and the user identifier of the first UE, to notify the first base station to continue by the first UE under the new cell. The communication representative manages the communication resources of the subsequent D2D communication group; or The processing module instructs the sending module to pass the original cell in the process of reselecting or switching The base station of the genus transmits the D2D communication resource cell change message to the first base station to which the new cell belongs, to notify the first base station to continue to be the communication representative by the first UE under the new cell. The communication resources of the D2D communication group are managed.  The user equipment according to any one of claims 30 to 33, wherein the receiving module is further configured to receive, by the first UE, the first base station in a process of performing the D2D communication. Transmitting a first resource change message; the first resource change message carries a first change communication resource;  The sending module is further configured to send the first change communication resource carried in the first resource change message to the second UE in the D2D communication group, so that each of the D2D communication groups The second UE performs the D2D communication service corresponding to the service identifier by using the first change communication resource; and instructs the processing module to update the cell identifier of the cell where the first change communication resource is located to the D2D communication group. Corresponding to the first cell list.  39. The user equipment of claim 34, wherein  The receiving module is further configured to: after the fourth UE is used as a communication representative to manage the first communication resource corresponding to the D2D communication group, and the first UE is performing the D2D communication Receiving, by the fourth UE, the second resource change message, where the second resource change message carries the second change communication resource;  The processing module is further configured to perform, by using the second change communication resource, a D2D communication service corresponding to the service identifier.  40. The user equipment of claim 36, wherein  The receiving module is further configured to: after the fifth UE is used as a communication representative to manage the communication resource of the D2D communication group, and the first UE is in the process of performing the D2D communication, Receiving, by the fifth UE, a third resource change message, where the third resource change message carries a third change communication resource;  The processing module is further configured to perform, by using the third change communication resource, a D2D communication service corresponding to the service identifier.  41. A user equipment, comprising: a receiving module, configured to receive a discovery message sent by the first UE from the wireless network, where the discovery message carries a group identifier of the device to the device D2D communication group and a service identifier corresponding to the D2D communication group; a sending module, configured to send a first application message to the first UE according to the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group, where the first application message carries the user identifier of the second UE The first application message is used by the second UE to apply to join the D2D communication group;  The receiving module is further configured to receive, by the first UE, a communication resource that is sent by the D2D communication group to perform communication according to the user identifier of the second UE, and instruct the second UE to use the communication resource. Performing a D2D communication service corresponding to the service identifier.  The user equipment according to claim 41, wherein the receiving module is further configured to receive, by the second UE, the D2D sent by the first UE in the process of performing the D2D communication. The communication group performs the changed communication resource of the communication, and instructs the second UE to perform the D2D communication service corresponding to the service identifier by using the changed communication resource.  The user equipment according to claim 41 or 42, wherein the first application message further carries a cell identifier of a cell where the second UE is located;  The receiving module is further configured to receive, by the second UE, a second D2D communication resource interface UE change message sent by the first UE when the second UE is in a process of performing the D2D communication, where the second D2D communication is performed. The group interface identifier of the D2D communication group, the user identifier of each UE in the D2D communication group, and the cell identifier of the cell where the first UE is located in the resource interface UE change message; the fourth UE is the first UE And selecting, according to the cell identifier of the cell where the second UE is located in the D2D communication group, one UE selected from each of the second UEs;  The sending module is further configured to: when the second UE is the fourth UE, send the second D2D communication resource interface UE change message to the second base station to which the second UE is located, to notify the The second base station manages the communication resource of the subsequent D2D communication group by the second UE as the fourth UE as a communication representative.  The user equipment according to claim 43, wherein the second UE receives, as the fourth UE, the second D2D sent by the first UE by using the receiving module in the process of performing the D2D communication. Before the communication resource interface UE changes the message,  The receiving module is configured to receive a query request sent by the first UE;  The sending module is configured to send a query response to the first UE, where the query response carries network signal strength and/or network signal quality of a cell where the second UE is located. 45. The user equipment according to claim 43 or 44, wherein said said After the two UEs manage the communication resources corresponding to the D2D communication group as the communication representative, and the second UE performs the D2D communication process,  The receiving module is further configured to receive a second resource change message sent by the second base station to which the second UE is located, where the second resource change message carries the second change communication resource;  The sending module is further configured to send the second change communication resource to each UE in the D2D communication group, to notify each UE to perform the D2D communication service corresponding to the service identifier by using the second change communication resource. .  46. A user equipment, comprising:  a receiving module, configured to receive a discovery message sent by the first UE from the wireless network, where the discovery message carries a group identifier of the device to the device D2D communication group and a service identifier corresponding to the D2D communication group;  a sending module, configured to send a first application message to the first UE according to the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group, where the first application message carries the second UE a user identifier and a cell identifier of a cell where the second UE is located; the first application message is used by the second UE to join the D2D communication group;  The receiving module is further configured to: when the second UE is used as the fifth UE, receive the first resource request message sent by the first UE, where the first resource request message carries the group identifier of the D2D communication group and a user identifier of each UE in the D2D communication group, to notify the fifth UE to manage the communication resource of the D2D communication group as a communication representative; the fifth UE is the first UE according to the The cell identifier of the cell in which the second UE is located is selected from one of the second UEs, and the sending module is further configured to use, when the second UE is the fifth UE, to the second UE. The second base station to which the cell is located forwards the first resource request message, to request the second base station to allocate a communication resource for the D2D communication group to perform the D2D communication service corresponding to the service identifier; The receiving module is further configured to receive, by the second UE, the first resource response message sent by the second base station, where the first resource response message is carried in the D2D communication group. a communication resource that performs communication; the communication resource is determined by the second base station according to the group identifier of the D2D communication group and the network resource status of each cell in the current second base station; or, the communication resource is Determining, by the second base station, that the group identifier of the D2D communication group is jointly negotiated by a base station adjacent to the second base station; The sending module is further configured to send, when the second UE is the fifth UE, to the UEs in the D2D communication group to perform the D2D communication group according to user identifiers of UEs in the D2D communication group. And a communication resource of the communication, to notify each of the UEs to perform the D2D communication service corresponding to the service identifier by using the communication resource.  The user equipment according to claim 46, wherein the first resource response message further includes a cell list; the cell list includes a cell identifier corresponding to at least one cell, and the cell list is used to indicate a location a cell in which the reserved resource used by the D2D communication group performs communication; the cell list is determined by the second base station, or the cell list is that the second base station is adjacent to the second base station The base stations are determined after mutual negotiation.  48. The user equipment according to claim 46 or 47, wherein:  The receiving module is further configured to receive a third resource change message sent by the second base station to which the cell where the fifth UE is located, where the third resource change message carries a third change communication resource; And the third change communication resource is sent to each UE in the D2D communication group, to notify each UE to perform the D2D communication service corresponding to the service identifier by using the third change communication resource.  49. A base station, comprising:  a receiving module, configured to receive a first resource request message sent by the first UE, where the first UE is in the cell coverage area of the first base station, and the first resource request message carries a group identifier of the D2D communication group;  a processing module, configured to determine, according to the group identifier of the D2D communication group and a network resource condition of each cell under the first base station, a first communication resource used for performing communication by the D2D communication group; or, the processing module Determining, according to the group identifier of the D2D communication group, the first communication resource after being mutually negotiated by a base station adjacent to the first base station;  And a sending module, configured to send, to the first UE, a first resource response message, where the first resource response message carries the first communication resource used by the D2D communication group to perform communication. The base station according to claim 49, wherein the first resource response message further includes a first cell list; the first cell list includes a cell identifier corresponding to at least one cell, and the first cell The list is used to indicate the cell in which the first reserved resource utilized by the D2D communication group to perform communication; the first cell list is determined by the processing module, or the first cell list is the processing module and The base stations adjacent to the first base station are jointly negotiated and determined. 51. The base station according to claim 50, wherein:  The receiving module is further configured to receive a second resource request message sent by the first UE, where the second resource request message carries a group identifier of the D2D communication group and a cell identifier of a cell where the third UE is located, where The cell identifier of the cell where the third UE is located is not included in the first cell list, and the processing module is further configured to: according to the cell identifier of the cell where the third UE is located, the group identifier of the D2D communication group, and the current The network resource situation of the cells in the first base station is re-allocated communication resources to the D2D communication group; or the processing module is configured according to the cell identifier of the cell where the third UE is located and the group identifier of the D2D communication group. Re-allocating the communication resource for the D2D communication group by co-negotiating with a base station adjacent to the first base station;  The sending module is further configured to send a second resource response message to the first UE, where the second resource response message carries the communication resource and the second cell list that are re-allocated for the D2D communication group; The second cell list includes a cell identifier of a cell where the third UE is located.  The base station according to any one of claims 49 to 51, characterized in that  The receiving module is further configured to receive a first D2D communication resource interface UE change message sent by the first UE, where the first D2D communication resource interface UE change message carries the group identifier of the D2D communication group, and the a user identifier of each UE in the D2D communication group and a cell identifier of a cell where the fourth UE is located; the first D2D communication resource interface UE change message is used to notify the first base station that the fourth UE is used as a communication representative to the subsequent station The first communication resource corresponding to the D2D communication group is managed; the sending module is further configured to send, according to the cell identifier of the cell where the fourth UE is located, to the base station to which the fourth UE is located, a D2D communication resource interface UE change message, to notify the base station to which the cell in which the fourth UE belongs is managed by the fourth UE as a communication representative to the communication resource of the subsequent D2D communication group; or  The receiving module receives a second D2D communication resource interface UE change message sent by the fourth UE that is sent by the base station to which the fourth UE belongs, and the second D2D communication resource interface UE change message carries the D2D a group identifier of the communication group, a user identifier of the fourth UE, and a cell identifier of a cell where the fourth UE is located, so that the first base station learns that the fourth UE is used as a communication representative to the subsequent D2D communication group. The communication resources are managed.  53. A base station according to any of claims 49-51, characterized in that The receiving module is further configured to receive, by the third base station, a D2D communication resource cell change message that is sent by the first UE, where the D2D communication resource cell change message carries the D2D communication group a group identifier and a user identifier of the first UE; to enable the first base station to learn that the first UE under the third base station continues to serve as a communication representative for the communication resource of the subsequent D2D communication group Manage.  The base station according to any one of claims 49 to 51, wherein, in the process of performing the D2D communication, the first UE  The sending module is further configured to send a first resource change message to the first UE, where the first resource change message carries the changed first communication resource, so that the first UE changes the first Sending information of a communication resource to each UE in the D2D communication group to notify each UE to perform the service of the D2D communication by using the changed first communication resource; and instructing the first UE to The cell identifier of the cell in which the first change communication resource is located is updated to the first cell list corresponding to the D2D communication group.  55. A base station, comprising:  a receiving module, configured to receive, by the second UE, a first resource request message sent by the first UE, where the second UE is within a cell coverage area of the second base station, and the first resource request message carries the D2D communication group The first resource request message is used by the first UE to perform a communication resource application for the D2D communication group in which the first UE is located;  a processing module, configured to determine a communication resource used for communication by the D2D communication group according to a group identifier of the D2D communication group and a network resource condition of each cell under the current second base station; or, the processing module is configured according to the Determining, by the base station adjacent to the second base station, the communication resource after determining the group identity of the D2D communication group;  And a sending module, configured to send, to the second UE, a first resource response message, where the first resource response message carries the communication resource used by the D2D communication group to perform communication.  The base station according to claim 55, wherein the first resource response message further includes a cell list, the cell list includes a cell identifier corresponding to at least one cell, and the cell list is used to indicate the The cell in which the reserved resource used by the D2D communication group performs communication is determined by the processing module, or the cell list is negotiated by the processing module and the base station adjacent to the second base station. After the determination.  57. A user equipment, comprising: a transmitter, configured to send a discovery message to the at least one second UE in the wireless network, where the discovery message is used to indicate to the at least one second UE that the first UE supports device-to-device D2D communication The service message carries the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group;  a receiver, configured to receive a first application message sent by the second UE, where the first application message carries a user identifier of the second UE, and the first application message is used by the second UE to apply for joining The D2D communication group;  a processor, configured to acquire, according to the first application message sent by the second UE, a communication resource used by the D2D communication group to perform communication;  The transmitter is further configured to send, according to the user identifier of the second UE, a communication resource for performing communication by the D2D communication group to the second UE in the D2D communication group, to notify the D2D Each UE in the communication group performs the D2D communication industry corresponding to the service identifier by using the communication resource The user equipment according to claim 57, wherein the processor is specifically configured to:  Instructing the sender to send a first resource request message to the first base station according to the first application message sent by the second UE, where the first UE is within a cell coverage area of the first base station, Carrying a group identifier of the D2D communication group in a resource request message;  Instructing the receiver to receive the first resource response message sent by the first base station, where the first resource response message carries a first communication resource for performing communication by the D2D communication group; the first communication resource is Determining, by the first base station, a group identity of the D2D communication group and a network resource condition of each cell in the current first base station; or, the first communication resource is the first base station according to the D2D communication The group identity of the group is determined after being negotiated by the base station adjacent to the first base station.  The user equipment according to claim 58, wherein the first resource response message further includes a first cell list; the first cell list includes a cell identifier corresponding to at least one cell, the first The cell list is used to indicate a cell in which the first reserved resource used by the D2D communication group to perform communication; the first cell list is determined by the first base station, or the first cell list is the first A base station is determined by mutual agreement with the base station adjacent to the first base station.  60. The user equipment of claim 59, wherein The receiver is further configured to receive a second application message sent by the third UE, where the second application is The message carries the user identifier of the third UE and the cell identifier of the cell where the third UE is located; the processor is further configured to: if the cell identifier of the cell where the third UE is located, is included in the first cell list Notifying the third UE to perform the D2D communication service corresponding to the service identifier by using the first reserved resource, and instructing the first UE to use the third UE as one of the D2D communication groups. The second UE performs management.  61. The user equipment of claim 59, wherein  The receiver is further configured to receive a second application message sent by the third UE, where the second application message carries a user identifier of the third UE and a cell identifier of a cell where the third UE is located;  The processor is further configured to: if the cell identifier of the cell where the third UE is located is not included in the first cell list, instruct the sender to send a second resource request message to the first base station; The second resource request message carries the group identifier of the D2D communication group and the cell identifier of the cell where the third UE is located, to request the first base station to use the cell identifier of the cell where the third UE is located as the D2D The communication group reallocates a suitable communication resource, and instructs the first UE to manage the third UE as one of the second UEs in the D2D communication group;  The receiver is further configured to receive a second resource response message returned by the first base station, where the second resource response message carries information and a second information of a second communication resource used for communication by the D2D communication group a cell list; the second cell list includes a cell where the third UE is located; the transmitter is further configured to send, to the second UE in the D2D communication group, the D2D communication group And performing a second communication resource of the communication, to notify each UE in the D2D communication group to perform the D2D communication service corresponding to the service identifier by using the second communication resource.  The user equipment according to any one of claims 58 to 61, wherein the first application message further carries a cell identifier of a cell where the second UE is located;  The processor is further configured to: when the first UE performs the D2D communication, measure network signal strength and/or network signal quality of a cell where the first UE is located;  If the network signal strength of the cell where the first UE is located is lower than the first signal strength threshold, and/or the network signal quality is lower than the first signal quality threshold, the processor is configured according to the cell of each cell where the second UE is located. Identifying, selecting one UE from each of the second UEs as the fourth UE; The transmitter is configured to send a first D2D communication resource interface UE change message to the first base station, where the first D2D communication resource interface UE change message carries the group identifier of the D2D communication group, and the D2D communication a user identifier of each UE in the group and a cell identifier of a cell where the fourth UE is located; Notifying the first base station that the fourth UE is used as a communication representative to manage the first communication resource corresponding to the subsequent D2D communication group; and/or,  Transmitting, by the sender, a second D2D communication resource interface UE change message to the fourth UE, where the second D2D communication resource interface UE change message carries a group identifier of the D2D communication group, and each of the D2D communication groups The user identifier of the UE and the cell identifier of the cell where the first UE is located; to notify the fourth UE to manage the first communication resource corresponding to the subsequent D2D communication group by using the communication unit as the communication representative.  The user equipment according to claim 62, wherein the processor selects one UE from each of the second UEs as the fourth UE according to the cell identifier of the cell in which the second UE is located, and includes:  The processor, according to the cell identifier of the cell where the second UE is located, instructs the sender to send a query request to the second UE in the D2D communication group.  The processor instructs the receiver to receive a query response returned by the second UE, where the query response carries network signal strength and/or network signal quality of a cell where the second UE is located;  The processor selects, from the each of the second UEs, the second UE that has the strongest network signal strength or network signal quality of the located cell as the fourth UE, or the processor from each of the foregoing The second UE that has the strongest combination of the network signal strength and the network signal quality of one of the two UEs is selected as the fourth UE.  The user equipment according to claim 57, wherein the first application message further carries a cell identifier of a cell where the second UE is located;  The processor is further configured to measure network signal strength and/or network signal quality of the cell where the second UE is located according to the cell identifier of the cell where the second UE is located, and use the measurement result from each of the second UEs. Selecting one UE as the fifth UE, and instructing the sender to send the first resource request message to the fifth UE, to notify the fifth UE that the fifth UE is the communication representative to the D2D communication group. The communication resource is managed; and the fifth UE is instructed to forward the first resource request message to the base station to which the cell where the fifth UE belongs, and then request the base station to which the cell in which the fifth UE belongs to allocate the D2D. The communication group executes the communication resource of the D2D communication service corresponding to the service identifier; The processor instructs the receiver to receive a communication resource sent by the fifth UE for the D2D communication group to perform communication. The user equipment according to any one of claims 58 to 61, wherein, the processor, the first UE measures the first in a process of performing the D2D communication The network signal strength and/or the network signal quality of the cell where the UE is located and the neighboring cell of the cell where the first UE is located, and reselected or switched to the new cell according to the measurement result;  The processor is further configured to determine, by the base station to which the new cell where the first UE belongs, as the new first base station, and instruct the sender to send a D2D communication resource cell change message to the first base station. The D2D communication resource cell change message carries the group identifier of the D2D communication group and the user identifier of the first UE, to notify the first base station to continue by the first UE under the new cell. The communication representative manages the communication resource of the subsequent D2D communication group; or the processor instructs the sender to belong to the new cell by the base station to which the original cell belongs in the process of the reselection or handover The first base station sends the D2D communication resource cell change message to notify the first base station to continue the communication by the first UE under the new cell as a communication representative to the subsequent D2D communication group. Resources are managed.  The user equipment according to any one of claims 58 to 61, wherein the receiver is further configured to receive, by the first UE, the first base station in a process of performing the D2D communication. Transmitting a first resource change message; the first resource change message carries a first change communication resource;  The transmitter is further configured to send the first change communication resource carried in the first resource change message to the second UE in the D2D communication group, so that each of the D2D communication groups Determining, by the second UE, the D2D communication service corresponding to the service identifier by using the first change communication resource; and instructing the processor to update a cell identifier of a cell where the first change communication resource is located to the D2D communication group Corresponding to the first cell list.  67. The user equipment of claim 62, wherein  The receiver is further configured to: after the fourth UE is used as a communication representative to manage the first communication resource corresponding to the D2D communication group, and the first UE is performing the D2D communication Receiving, by the fourth UE, the second resource change message, where the second resource change message carries the second change communication resource;  The processor is further configured to perform, by using the second change communication resource, a D2D communication service corresponding to the service identifier. 68. The user equipment of claim 64, wherein The receiver is further configured to: after the fifth UE is used as a communication representative to manage the communication resource of the D2D communication group, and the first UE is in the process of performing the D2D communication, Receiving, by the fifth UE, a third resource change message, where the third resource change message carries a third change communication resource;  The processor is further configured to perform, by using the third change communication resource, the D2D communication service corresponding to the service identifier.  69. A user equipment, comprising:  a receiver, configured to receive a discovery message sent by the first UE from the wireless network; the discovery message carries a group identifier of the device to the device D2D communication group and a service identifier corresponding to the D2D communication group;  a transmitter, configured to send a first application message to the first UE according to the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group, where the first application message carries a user identifier of the second UE The first application message is used by the second UE to apply to join the D2D communication group;  The receiver is further configured to receive, by the first UE, a communication resource that is sent by the D2D communication group to perform communication according to the user identifier of the second UE, and instruct the second UE to use the communication resource. Performing a D2D communication service corresponding to the service identifier.  The user equipment according to claim 69, wherein the receiver is further configured to receive, by the second UE, the first UE, for the D2D, in the process of performing the D2D communication. The communication group performs the changed communication resource of the communication, and instructs the second UE to perform the D2D communication service corresponding to the service identifier by using the changed communication resource.  The user equipment according to claim 69 or 70, wherein the first application message further carries a cell identifier of a cell where the second UE is located;  The receiver is further configured to receive, by the second UE, a second D2D communication resource interface UE change message sent by the first UE when the second UE is in a process of performing the D2D communication, where the second D2D communication is performed. The resource interface UE change message carries the group identifier of the D2D communication group, the user identifier of each UE in the D2D communication group, and the cell identifier of the cell where the first UE is located; the fourth UE is the first UE And selecting, according to the cell identifier of the cell where the second UE is located in the D2D communication group, one UE selected from each of the second UEs; The transmitter is further configured to: when the second UE is the fourth UE, where the second UE is located The second base station to which the cell belongs sends the second D2D communication resource interface UE change message to notify the second base station that the second UE that is the fourth UE serves as a communication representative to the subsequent D2D communication group. The communication resources are managed.  The user equipment according to claim 71, wherein the second UE receives the second D2D sent by the first UE by using the receiver as a fourth UE in the process of performing the D2D communication. Before the communication resource interface UE changes the message,  The receiver is configured to receive a query request sent by the first UE;  The transmitter is configured to return a query response to the first UE, where the query response carries network signal strength and/or network signal quality of a cell where the second UE is located.  The user equipment according to claim 71 or 72, wherein the second UE is managed by the second UE as a communication representative, and the second UE is managed by the communication resource corresponding to the D2D communication group. In the process of performing the D2D communication,  The receiver is further configured to receive a second resource change message sent by the second base station to which the second UE is located, where the second resource change message carries the second change communication resource;  The transmitter is further configured to send the second change communication resource to each UE in the D2D communication group, to notify each UE to perform the D2D communication service corresponding to the service identifier by using the second change communication resource. .  74. A user equipment, comprising:  a receiver, configured to receive a discovery message sent by the first UE from the wireless network; the discovery message carries a group identifier of the device to the device D2D communication group and a service identifier corresponding to the D2D communication group;  a transmitter, configured to send a first application message to the first UE according to the group identifier of the D2D communication group and the service identifier corresponding to the D2D communication group, where the first application message carries the second UE a user identifier and a cell identifier of a cell where the second UE is located; the first application message is used by the second UE to join the D2D communication group. The receiver, when the second UE is used as the fifth UE, receives the first resource request message sent by the first UE, where the first resource request message carries the group identifier of the D2D communication group and a user identifier of each UE in the D2D communication group, to notify the fifth UE to manage the communication resource of the D2D communication group as a communication representative; the fifth UE is the first UE according to the first UE a cell identifier of a cell in which the second UE is located, and a UE selected from each of the second UEs; The transmitter is further configured to: when the second UE is the fifth UE, forward the first resource request message to a second base station to which the second UE is located, to request the second base station to allocate a communication resource for the D2D communication group to perform the D2D communication service corresponding to the service identifier; the receiver is further configured to receive, by the second UE, the second UE when the second UE is the fifth UE a resource response message, where the first resource response message carries communication resources for performing communication by the D2D communication group; the communication resource is a group identifier of the D2D communication group and the current The network resource situation of each cell in the second base station is determined; or the communication resource is determined by the second base station according to the group identifier of the D2D communication group after being negotiated by the base station adjacent to the second base station. come out;  The transmitter is further configured to send, when the second UE is the fifth UE, to the UEs in the D2D communication group to perform the D2D communication group according to user identifiers of UEs in the D2D communication group. And a communication resource of the communication, to notify each of the UEs to perform the D2D communication service corresponding to the service identifier by using the communication resource.  The user equipment according to claim 74, wherein the first resource response message further includes a cell list; the cell list includes a cell identifier corresponding to at least one cell, and the cell list is used to indicate a location a cell in which the reserved resource used by the D2D communication group performs communication; the cell list is determined by the second base station, or the cell list is that the second base station is adjacent to the second base station The base stations are determined after mutual negotiation.  76. The user equipment according to claim 74 or 75, characterized in that:  The receiver is further configured to receive a third resource change message sent by the second base station to which the cell where the fifth UE is located, where the third resource change message carries a third change communication resource; And the third change communication resource is sent to each UE in the D2D communication group, to notify each UE to perform the D2D communication service corresponding to the service identifier by using the third change communication resource.  77. A base station, comprising:  a receiver, configured to receive a first resource request message sent by the first UE, where the first UE is in a range of cells covered by the first base station, and the first resource request message carries a group identifier of a D2D communication group; a processor, configured to determine, according to a group identifier of the D2D communication group and a network resource condition of each cell under the first base station, a first communication resource used for performing communication by the D2D communication group; or Determining, by the processor, the first communication resource after being negotiated by a base station adjacent to the first base station according to the group identifier of the D2D communication group;  And a transmitter, configured to send, to the first UE, a first resource response message, where the first resource response message carries the first communication resource used by the D2D communication group to perform communication.  The base station according to claim 77, wherein the first resource response message further includes a first cell list; the first cell list includes a cell identifier corresponding to at least one cell, and the first cell The list is used to indicate a cell in which the first reserved resource utilized by the D2D communication group to perform communication; the first cell list is determined by the processor, or the first cell list is the processor and The base stations adjacent to the first base station are jointly negotiated and determined.  79. The base station according to claim 78, wherein:  The receiver is further configured to receive a second resource request message sent by the first UE, where the second resource request message carries a group identifier of the D2D communication group and a cell identifier of a cell where the third UE is located, where The cell identifier of the cell where the third UE is located is not included in the first cell list;  The processor is further configured to redistribute the D2D communication group according to a cell identifier of a cell where the third UE is located, a group identifier of the D2D communication group, and a network resource condition of each cell in the current first base station. And the processor is configured to be the D2D communication group after being negotiated by the base station adjacent to the first base station according to the cell identifier of the cell where the third UE is located and the group identifier of the D2D communication group. Redistributing the communication resources;  The transmitter is further configured to send a second resource response message to the first UE, where the second resource response message carries the communication resource and the second cell list that are re-allocated for the D2D communication group; The second cell list includes a cell identifier of a cell where the third UE is located.  80. The base station according to any one of claims 77-79, characterized in that The receiver is further configured to receive a first D2D communication resource interface UE change message sent by the first UE, where the first D2D communication resource interface UE change message carries the group identifier of the D2D communication group, and the a user identifier of each UE in the D2D communication group and a cell identifier of a cell where the fourth UE is located; the first D2D communication resource interface UE change message is used to notify the first base station that the fourth UE is used as a communication representative to the subsequent station The first communication resource corresponding to the D2D communication group is managed; the transmitter is further configured to send, according to the cell identifier of the cell where the fourth UE is located, to the base station to which the fourth UE is located, a D2D communication resource interface UE change message, to notify that the base station to which the fourth UE is located is used by the fourth UE as a communication representative The communication resource of the D2D communication group is managed; or  Receiving, by the receiver, the second D2D communication resource interface UE change message sent by the fourth UE that is sent by the base station to which the fourth UE belongs, and the second D2D communication resource interface UE change message carrying the D2D a group identifier of the communication group, a user identifier of the fourth UE, and a cell identifier of a cell where the fourth UE is located, so that the first base station learns that the fourth UE is used as a communication representative to the subsequent D2D communication group. The communication resources are managed.  The base station according to any one of claims 77 to 79, characterized in that  The receiver is further configured to receive, by the third base station, a D2D communication resource cell change message that is sent by the first UE, where the D2D communication resource cell change message carries the group identifier of the D2D communication group and the a user identifier of a UE, so that the first base station learns that the first UE under the third base station continues to be a communication representative to manage the communication resource of the subsequent D2D communication group.  The base station according to any one of claims 77 to 79, wherein, in the process of performing the D2D communication, the first UE  The transmitter is further configured to send a first resource change message to the first UE, where the first resource change message carries the changed first communication resource, so that the first UE changes the first Sending information of a communication resource to each UE in the D2D communication group to notify each UE to perform the service of the D2D communication by using the changed first communication resource; and instructing the first UE to The cell identifier of the cell in which the first change communication resource is located is updated to the first cell list corresponding to the D2D communication group.  83. A base station, comprising:  Receiving, by the receiver, a first resource request message sent by the first UE that is sent by the second UE; the second UE is within a cell coverage area of the second base station; and the first resource request message carries the D2D communication group The first resource request message is used by the first UE to apply for a communication resource for the D2D communication group in which the first UE is located;  a processor, configured to determine a communication resource used for communication by the D2D communication group according to a group identifier of the D2D communication group and a network resource condition of each cell under the current second base station; or, the processor according to the Determining, by the base station adjacent to the second base station, the communication resource after determining the group identity of the D2D communication group; a transmitter, configured to send, to the second UE, a first resource response message, where the first resource response The message carries the communication resource for the D2D communication group to perform communication.  The base station according to claim 83, wherein the first resource response message further includes a cell list, the cell list includes a cell identifier corresponding to at least one cell, and the cell list is used to indicate the The cell in which the reserved resource used by the D2D communication group performs communication is determined by the processor, or the cell list is negotiated by the processor and the base station adjacent to the second base station. After the determination.  85. A system, comprising: the user equipment according to any one of claims 29 to 40, the user equipment according to any one of claims 41 to 48, or any one of claims 49 to 54 Base station and base station according to claim 55 or 56.  86. A system, comprising: the user equipment according to any one of claims 57 to 68, the user equipment according to any one of claims 69 to 76, or any one of claims 77 to 82 Base station and base station according to claim 83 or 84.