CN105813168A - Access control method for neighbor service, and ProSe UE - Google Patents

Abstract

The invention discloses an access control method for the neighbor service, and a terminal. The method comprises the steps of determining whether an access-forbidden timer is running or not; on the condition that the timer is running, forbidding the ProSe UE to initiate a cell access request or visit the neighbor service to access to competitive resources; on the condition that the timer is not running, determining whether to allow the ProSe UE to initiate the cell access request or visit the neighbor service to access to competitive resources or not according to the access class restricted information contained in the access control information of the neighbor service and access class restricted parameters for the communication of the ProSe UE.

Description

Access Control Method for Near Neighbor Service and ProSe UE

technical field

The present invention relates to an access control technology in the communication field, in particular to an access control method for Proximity-based Services (Proximity-based Services, ProSe) user equipment (User Equipment, UE).

Background technique

In the field of wireless communication, with the rapid development of smart terminals and mobile Internet applications, people have higher and higher requirements for user experience, high speed, and large data volume. The existing cellular network with the base station as the center of the data transmission node has obvious limitations in the support of high data rate and proximity service. Under the background of this demand, the D2D (Device-to-Device , device-to-device) communication (the D2D includes the above ProSe communication) technology emerges as the times require. The application of D2D technology can reduce the burden of the cellular network, reduce the battery power consumption of the user equipment, increase the data rate, and improve the robustness of the network infrastructure, which can well meet the above-mentioned high data rate business and proximity service requirements.

D2D technology can work in licensed or unlicensed frequency bands, allowing multiple D2D-enabled user equipment (ie D2D user equipment, D2DUserEquipment, D2DUE) to perform direct discovery/direct communication with or without network infrastructure . There are three main application scenarios for D2D:

UE1 and UE2 perform data interaction under the coverage of the cellular network, and the user plane data does not pass through the network infrastructure, as shown in mode 1 in Figure 1; UE relay transmission in weak/no coverage areas, such as mode 2 in Figure 1, allows UE4 with poor signal quality communicates with the network through UE3 with nearby network coverage, which can help operators expand coverage and increase capacity.

In the event of an earthquake or emergency and the cellular network cannot work normally, direct communication between devices is allowed, as shown in mode 3 in Figure 1. The control plane and user plane between UE5, UE6 and UE7 do not go through the network infrastructure. Hop or multi-hop data communication.

D2D technology usually includes D2D discovery technology and D2D communication technology:

D2D discovery technology refers to the method used to judge/determine that two or more D2D user equipments are adjacent to each other (for example, within the range where D2D direct communication can be performed) or to judge/determine that a first user equipment is adjacent to a second user equipment. technology. Usually, D2D user equipment can discover each other by sending or receiving discovery signals/information. Under the coverage of cellular network, the network can assist D2D user equipment to perform D2D discovery;

The D2D communication technology refers to a technology in which some or all communication data between D2D user equipments can be directly communicated without passing through network infrastructure.

Before performing D2D discovery or D2D communication, ProSeUE needs to obtain corresponding wireless resources first. According to the progress of the existing 3GPP standard meeting, there are two resource allocation methods for both D2D discovery and D2D communication resources, namely Resource acquisition based on contention (the first resource allocation mode) or the base station allocates dedicated resources for the UE (the second resource allocation mode) for D2D discovery/communication. The first resource allocation mode usually pre-allocates a D2D resource pool by the base station or the system, and the ProSeUE participating in D2D discovery/communication monitors the resource pool and obtains D2D transmission resources through competition. In the second resource allocation manner, the base station allocates appropriate D2D resources for the ProSeUE according to the request of the ProSeUE.

At the same time, according to the conclusions of the current 3GPP meeting, when ProSeUE needs to send data during D2D discovery/communication, in the case of the second resource allocation method, ProSeUE within network coverage needs to enter the connection state to apply for resources, that is, ProSeUE needs to access In the case of the network, the first resource allocation method, ProSeUE obtains resources through competition according to needs. In high-load scenarios and/or high-interference scenarios, in cellular network communications, ACB (AccessClassBarring) and EAB (ExtendedAccessBarring) are used to perform access control under overload conditions. However, the access control for the neighbor service (ie, the D2D) has not been proposed in the prior art to avoid the problems of overloading the network and excessive interference, especially in high-load application scenarios and high-interference scenarios. Controlling the user equipment to access the network to use D2D services will lead to further aggravation of network load and interference.

Contents of the invention

In view of this, the embodiments of the present invention expect to provide a proximity service access control method and a ProSeUE, so as to reduce the high load and high interference caused by the access of the user equipment using the proximity service.

In order to achieve the above object, the technical solution of the present invention is implemented as follows: the first aspect of the embodiment of the present invention provides an access control method for proximity services, the method comprising:

determining whether a barring timer is running;

When the timer is running, the ProSeUE is prohibited from initiating a cell access request or accessing neighbor service access contention resources;

When the timer is not running, determine whether the neighbor service access control information includes access level restriction information and access level restriction parameters for ProSe communication;

When the neighbor service access control information does not include the access class restriction information and the access class restriction parameter used for ProSe communication, the ProSe UE is allowed to initiate a cell access request or access a neighbor service access contention resource.

Preferably, the access level restriction parameters for ProSe communication further include: access level restriction parameters for a special access level for ProSe communication; the access level restriction parameters for a special access level for ProSe communication The parameter includes an access level restriction parameter of the first type of special access level used for ProSe communication as a specified value;

The method also includes:

When the proximity service access control information includes the access level restriction information and access level restriction parameters used for ProSe communication, determine whether at least one of the AC values of the ProSe UE is a first specified AC value and the Whether the access level restriction parameter of the special access level used for ProSe communication corresponding to the first specified AC value of the ProSeUE is the first type of access level restriction parameter of the special access level used for ProSe communication;

When at least one of the AC values of the ProSeUE is the first specified AC value and the access level restriction parameter of the special access level for ProSe communication corresponding to the first specified AC value of the ProSeUE is the first type When the access level restriction parameter of the special access level of ProSe communication is used, the ProSe UE is allowed to initiate a cell access request or access a neighboring service access contention resource.

Preferably, the access level restriction parameter for ProSe communication includes an access level restriction factor for ProSe communication;

The method also includes:

When the AC value of the ProSe UE does not have the first specified AC value or the access level restriction parameter of the special access level used for ProSe communication corresponding to the first specified AC value of the ProSe UE is not the first type for ProSe A random number is generated when the access level restriction parameter of the special access level of communication is used;

comparing said random number with an access class restriction factor for ProSe communication;

When the random number is smaller than the access level restriction factor used for ProSe communication, the ProSe UE is allowed to initiate a cell access request or access a neighboring service access contention resource.

Preferably, the method also includes:

When the random number is not smaller than the access level restriction factor used for ProSe communication, the ProSe UE is prohibited from initiating a cell access request or accessing neighbor service access contention resources.

Preferably, the access level restriction parameter for ProSe communication further includes an access level restriction time parameter for ProSe communication;

The method also includes:

When the random number is not less than the access level restriction factor used for ProSe communication, according to the access level restriction time parameter of the ProSe communication, determine that the ProSe UE is prohibited from initiating an access request or accessing a neighbor service access competition the prohibition time of the resource;

The ProSeUE is prohibited from initiating an access request or accessing neighbor service access competing resources within the prohibition time.

Preferably, the ProSeUE corresponds to different priority levels;

The first AC values of the ProSeUEs of different priority levels are at least partially different;

The method also includes:

determining the priority of said ProSe;

determining an access level restriction factor for ProSe communication for comparison with the random number according to the priority;

Wherein, the priority of the ProSeUE of the i-th priority is lower than that of the ProSeUE of the i-1th priority; the access level restriction factor for ProSe communication corresponding to the ProSeUE of the i-th priority is An access level restriction factor for ProSe communication; the i-th access level restriction factor for ProSe communication is lower than the i-1th access level restriction factor for ProSe communication;

The i is an integer not less than 2.

Preferably, the AC value of the ProSe UE is the same as the AC value of the UE in cellular communication.

Preferably, the AC value of the ProSe UE is an AC value dedicated to the ProSe communication.

Preferably, the method also includes:

Query the configuration information of the ProSeUE;

When the ProSeUE is a UE whose access is restricted in the neighbor service access control information, prohibit the ProSeUE from initiating a request for access or accessing neighbor service access competition resources within a specified time;

The determining whether the neighbor service access control information includes access level restriction information and access level restriction parameters for ProSe communication includes:

When the ProSe UE is a UE whose access is restricted in the neighbor service access control information, determine whether the neighbor service access control information includes access class restriction information and access class restriction parameters used for ProSe communication.

Preferably, the method also includes:

The proximity service access control information is received from a system message or dedicated signaling sent by the base station.

The second aspect of the embodiment of the present invention provides a ProSeUE, where the ProSeUE includes:

A first determination unit, configured to determine whether the access-forbidden timer is running;

A prohibition unit, configured to prohibit ProSeUE from initiating a cell access request or accessing neighbor service access contention resources when the timer is running;

The second determining unit is configured to determine whether the access control information of the neighbor service includes access level restriction information and access level restriction parameters used for ProSe communication when the timer is not running;

a permission unit, configured to allow the ProSe UE to initiate a cell access request or access a neighbor service access into competing resources.

Preferably, the access level restriction parameters for ProSe communication further include: access level restriction parameters for a special access level for ProSe communication; the access level restriction parameters for a special access level for ProSe communication The parameter includes an access level restriction parameter of the first type of special access level used for ProSe communication as a specified value;

The second determination unit is further configured to determine whether the AC value of the ProSe UE has at least Whether an access level restriction parameter of the special access level for ProSe communication corresponding to the first specified AC value of the ProSeUE is the first type of special access level for ProSe communication Access class restriction parameters;

The permission unit is also used to limit the access level of the special access level used for ProSe communication when at least one of the AC values of the ProSeUE is the first specified AC value and the first specified AC value of the ProSeUE corresponds to the access level When the parameter is the access level restriction parameter of the first type of special access level used for ProSe communication, the ProSe UE is allowed to initiate a cell access request or access neighbor service access competition resources.

Preferably, the access level restriction parameter for ProSe communication includes an access level restriction factor for ProSe communication;

The ProSeUE also includes:

A generating unit, configured to use when the AC value of the ProSeUE does not have a first specified AC value or the access level restriction parameter of the special access level for ProSe communication corresponding to the first specified AC value of the ProSeUE is not the first specified AC value A random number is generated when a type of access level restriction parameter is used for a special access level of ProSe communication;

a comparison unit, configured to compare the random number with an access level restriction factor for ProSe communication;

The allowing unit is further configured to allow the ProSeUE to initiate a cell access request or access a neighboring service access contention resource when the random number is smaller than the access level restriction factor.

Preferably, the prohibiting unit is further configured to prohibit the ProSe UE from initiating a cell access request or accessing neighbor service access contention resources when the random number is not smaller than the access level restriction factor for ProSe communication.

Preferably, the access level restriction parameter for ProSe communication further includes an access level restriction time parameter for ProSe communication;

The second determination unit is configured to determine that the ProSe UE is prohibited from initiating an access request according to the access level restriction time parameter of the ProSe communication when the random number is not less than the access level restriction factor for ProSe communication Or the prohibition time for accessing neighboring services to access competing resources;

The prohibition unit is further configured to prohibit the ProSeUE from initiating an access request or accessing neighbor service access competing resources within the prohibition time.

Preferably, the ProSeUE corresponds to different priority levels;

The first specified AC values of the ProSeUEs of different priority levels are at least partially different;

The comparison unit is also used to determine the priority of the ProSe; according to the priority, determine an access level restriction factor used for ProSe communication for comparison with the random number;

Wherein, the priority of the ProSeUE of the i-th priority is lower than that of the ProSeUE of the i-1th priority; the access level restriction factor for ProSe communication corresponding to the ProSeUE of the i-th priority is An access level restriction factor for ProSe communication; the i-th access level restriction factor for ProSe communication is lower than the i-1th access level restriction factor for ProSe communication;

The i is an integer not less than 2.

Preferably, the AC value of the ProSe UE is the same as the AC value of the UE in cellular communication.

Preferably, the AC value of the ProSe UE is an AC value dedicated to the ProSe communication.

Preferably, the ProSeUE also includes:

a query unit, configured to query configuration information of the ProSeUE;

The prohibition unit is further configured to prohibit the ProSeUE from initiating a request for access or accessing a neighbor service to access competing resources within a specified time when the ProSeUE is a UE whose access is restricted in the neighbor service access control information;

The second determining unit is further configured to determine whether the ProSe access control information includes access level restriction information and is used for ProSe communication when the ProSe UE is a UE whose access is restricted in the ProSe access control information. Access level restriction parameters.

Preferably, the ProSeUE also includes:

The receiving unit is configured to receive the proximity service access control information from the system message or dedicated signaling sent by the base station.

The access control method and ProSeUE according to the embodiment of the present invention, the ProSeUE determines whether the current cell is allowed to access according to the access control level information in the access control information sent by the base station and the access level restriction parameters used for ProSe communication, avoiding the prior art Regardless of the busyness of the current cell, direct access to the cell leads to a further increase in the busyness and interference of the high-load and/or high-interference cell; thus reducing the high load and interference caused by the access of user equipment using the proximity service High interference phenomenon.

Description of drawings

FIG. 1 is a schematic diagram of three communication modes of the proximity service;

FIG. 2 is one of the schematic flow diagrams of the access control method of the proximity service described in the embodiment of the present invention;

FIG. 3 is the second schematic flow diagram of the access control method of the proximity service according to the embodiment of the present invention;

FIG. 4 is one of the schematic structural diagrams of the ProSeUE described in the embodiment of the present invention;

FIG. 5 is the third schematic flow diagram of the access control method of the proximity service according to the embodiment of the present invention;

FIG. 6 is the fourth schematic flow diagram of the access control method of the proximity service according to the embodiment of the present invention.

detailed description

The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

In the embodiment of the present invention, an access control method of the neighbor service and ProSeUE will be provided, and it will be determined whether the ProSeUE is allowed to initiate a cell access request or access the neighbor service to access competing resources according to the neighbor service access control information sent by the base station. In this way, the purpose of controlling ProSeUE access is achieved, and in the case of high load or high interference, by receiving the access control information, it is possible to avoid initiating access to a cell.

Method example:

As shown in FIG. 2, this embodiment provides an access control method for proximity services, the method including:

Step S110: Determine whether the timer for prohibiting access is running;

Step S120: When the timer is running, ProSeUE is prohibited from initiating a cell access request or accessing neighboring services to access competing resources;

Step S130: When the timer is not running, determine whether the access control information of the neighbor service includes access level restriction information and access level restriction parameters for ProSe communication;

Step S140: When the neighbor service access control information does not include the access class restriction information and the access class restriction parameters used for ProSe communication, allow the ProSe UE to initiate a cell access request or access a neighbor service access competition resource.

The timer may be timers such as T302 or Tbarring in the user equipment UE; when these timers are turned on, the user equipment UE is generally not allowed to initiate an access request or access access contention resources for a period of time.

The composition of T302 and the timing of starting the timing can refer to the provisions in the existing communication protocol, and will not be repeated here. The timing start of the Tbarring may be determined according to the access control information received from the base station.

In this embodiment, when it is inquired that the timer is not running, it is determined whether the access control information of the neighbor service received from the base station (such as the evolved base station eNB) includes the access class restriction information ac-BarringInfo and used for ProSe Communication access class barring parameter ac-BarringForProSeComm.

When the access level restriction information and the access level restriction parameter for ProSe communication are not included, it means that the base station does not want to restrict the ProSe communication access of the ProSe UE at present, so that the ProSe UE will be allowed to initiate ProSe communication An access request or an access neighbor service access competes for resources to enter a specified cell.

Usually, the ProSe access control information is sent by the base station with which the ProSeUE is geographically located and which can establish a wireless connection.

The access request initiated by the ProSeUE in step S130 may be to access the cell where the ProSeUE is currently located, or may be another cell formed at the location where the ProSeUE is located by the base station of the cell where the ProSeUE is currently located. In step S130, the access request is a neighbor service access request.

The access level barring parameter ac-BarringForProSeComm for ProSe communication further includes: the access level barring parameter ac-BarringForSpecialAC for a special access level for ProSe communication.

The access level restriction parameter of the special access level for ProSe communication includes the first type of access level restriction parameter of the special access level for ProSe communication with a specified value.

The specified value is one or more bits corresponding to the ac-BarringForSpecialAC as the specified sequence; specifically, when the ac-BarringForSpecialAC corresponds to 1 bit, it can be considered that the ac-BarringForSpecialAC whose bit is 0 is the specified sequence. The first type of ac-BarringForSpecialAC. Specifically, the specified value may be determined according to a communication protocol, or may be determined based on negotiation between the base station and the UE.

Optionally, as shown in Figure 3, the method described in this embodiment further includes:

Step S150: When the proximity service access control information includes the access level restriction information and access level restriction parameters used for ProSe communication, determine whether at least one of the AC values of the ProSe UE is the first specified AC value And whether the access level restriction parameter of the special access level used for ProSe communication corresponding to the first specified AC value of the ProSeUE is the first type of access level restriction parameter of the special access level used for ProSe communication.

Step S160: When at least one of the AC values of the ProSeUE is the first specified AC value and the access level restriction parameter of the special access level for ProSe communication corresponding to the first specified AC value of the ProSeUE is the first specified AC value When a type of access level restriction parameter is used for the special access level of ProSe communication, the ProSe UE is allowed to initiate a cell access request or access neighbor service access competition resources.

The AC values of the ProSeUE include 10 AC values of 0, 1, 2...9, and the AC values may further include 5 AC values of 11 to 15. The AC value may also include one or more AC values added on the basis of the AC value used for cellular communication, for example, an AC value with a value of 16 or 17. A ProSeUE may include multiple AC values with different values. In this embodiment, the step S160 is the first designated AC value designated when judging whether there is one or more AC values of the ProSeUE. The first specified AC value may be one or more specified AC values among the aforementioned AC values.

Specifically, if the value of the current first specified AC value can be 11 to 15; if the current AC value of the ProSeUE is an AC value with a specific value of 4 among 0 to 9, it is determined that the AC value of the previous ProSeUE is not Including the first specified AC value. If the ProSeUE includes multiple AC values, and if these AC values include an AC value of 12, then determine that at least one of the AC values of the ProSeUE is the first specified AC value.

In this embodiment, the user equipment UE determines whether to initiate an access request or to access contention resources based on the neighbor service access control information sent by the base station; this can facilitate the base station according to its own load and the interference degree of the measured cell The ac-BarringForSpecialAC is set, so as to control the access control of the ProSeUE. The access level restriction parameter for ProSe communication includes an access level restriction factor for ProSe communication;

As shown in Figure 3, the method also includes:

Step S170: When the AC value of the ProSe UE does not have the first specified AC value or the access level restriction parameter of the special access level for ProSe communication corresponding to the first specified AC value of the ProSe UE is not the first type Generate a random number when using the access level restriction parameters of the special access level for ProSe communication;

Step S180: comparing the random number with the access level restriction factor used for ProSe communication;

Step S190: When the random number is smaller than the access level restriction factor, the ProSeUE is allowed to initiate a cell access request or access neighbor service access contention resources.

Further, as shown in Figure 3, the method also includes:

Step S200: When the random number is not less than the access level restriction factor ac-BarringProSeFactor for ProSe communication, prohibit the ProSe UE from initiating a cell access request or accessing neighbor service access contention resources.

The random number is randomly generated. The value range of the random number is the same as the value range of the access level restriction factor for ProSe communication, when the value range of the access level restriction factor for ProSe communication is 0 to 1, then the The aforementioned access level restriction factor for ProSe communication is also 0 to 1; and usually the number within the value range is a uniformly distributed random number.

The value range may be determined between the base station and the user equipment UE according to a communication protocol or based on negotiation.

When generating random numbers, the probability of any random number generated by the user equipment according to statistical probability is the same; at this time, if the value of the access level restriction factor used for ProSe communication is large, the ProSe UE is allowed to initiate an access Incoming requests or access to neighbor services have a greater probability of accessing competing resources.

When the base station is busy, the access of the ProSe UE can be restricted by setting a lower access level restriction factor for ProSe communication.

If the ProSeUE includes 2 priorities, for example, among the AC values of 0 to 9, it can be considered that the priority corresponding to the AC value of 0 to 4 is higher than that of the AC value of 5 to 9. The ProSeUE can receive two access level restriction factors of different sizes for ProSe communication from the base station to restrict the ProSeUE. When the AC value of the ProSeUE is determined to be an AC value of 0 to 4, it is used for ProSe communication access The level restriction factor is greater than the access level restriction factor for ProSe communication with an AC value of 5 to 9 for the ProSe UE, so that the ProSe UE with an AC value of 5 to 9 can be restricted to ensure that the ProSe UE with an AC value of 0 to 4 has a better performance. More opportunities to send access requests or access competing resources.

The access level restriction parameter for ProSe communication also includes an access level restriction time parameter for ProSe communication;

The method also includes:

When the random number is not less than the access level barring factor used for ProSe communication, according to the access level barring time parameter ac-BarringProSeTime of the ProSe communication, determine that the ProSe UE is prohibited from initiating an access request or accessing a neighbor service Prohibition time for accessing competing resources;

The ProSeUE is prohibited from initiating an access request or accessing neighbor service access competing resources within the prohibition time.

Here, the timing of the barring time can be performed by using Tbarring in step S110.

In this embodiment, when a ProSeUE is prohibited from initiating access requests or accessing competing resources, it will also start counting the prohibition time for prohibiting access after it is determined that it is prohibited to initiate access requests or access competing resources, so that ProSeUE can avoid After the access is prohibited, step S110 to step S200 are repeatedly executed, resulting in the problem of high energy consumption of the UE.

In addition, the ProSe UEs correspond to different priority levels; the first AC values of the ProSe UEs of different priority levels are at least partially different.

The method further includes: determining the priority of the ProSe; and determining an access level restriction factor for ProSe communication for comparison with the random number according to the priority. The priority of the ProSeUE with i-th priority is lower than that of the ProSeUE with i-1th priority. The access level restriction factor for ProSe communication corresponding to the i-th priority ProSe UE is the i-th access level restriction factor for ProSe communication. The i-th access level restriction factor for ProSe communication is lower than the i-1th access level restriction factor for ProSe communication; the i is an integer not less than 2.

During implementation, the priority of the ProSeUE can be determined by a special priority parameter, or by a non-first specified AC value, but in this embodiment it is determined by the first specified AC value, so that The proximity service access control information can be simplified, thereby simplifying the steps for the base station to form the proximity service access control information, and reducing the information volume of the proximity service access control information.

The above scheme shows that the access level restriction factor for ProSe communication corresponding to the AC value of the ProSe with high priority is greater than the access level restriction factor for ProSe communication corresponding to the AC value of ProSe with low priority. Entry level limiting factor.

Specifically, the priority of the ProSe UE includes high priority and non-high priority; the non-high priority is lower than the priority of the high priority. In this way, it can be ensured that a high priority has a higher probability of accessing the ProSe communication.

During implementation, the access level restriction parameters for ProSe communication include a plurality of access level restriction factors for ProSe communication; different access level restriction factors for ProSe communication correspond to different AC values of ProSeUE ; And these AC values correspond to different priorities.

Different AC values may correspond to different priorities, or different attribute values of the same AC value may correspond to different priorities. In short, the AC value of the ProSeUE has a certain mapping relationship with the priority of the ProSeUE. Generally, the AC value that can be used to indicate the priority of ProSeUE is the AC value in the first specified AC value; specifically, when the first AC value includes the AC value of 11 to 15, and also includes the newly added AC value of An AC value of 16 or 17, it is possible that the ProSeUE priority of a certain first AC value is higher than the ProSeUE of another first AC value. Further, the priority of the ProSe UE including the first specified AC value may be higher than the priority of the ProSe UE with the AC value of 0 to 9. Which specific AC value corresponds to the high priority may be determined according to negotiation between the base station and the UE, or may be determined according to a communication protocol.

In this embodiment, in order to enable ProSe UEs with a higher priority to have a higher access probability, the value of the access level restriction factor for ProSe communication corresponding to a ProSe UE with a higher priority is higher, so that the generated random number The probability of being smaller than the access class restriction factor for ProSe communication is greater.

Specifically, for example, when the AC values of 11 to 15 in the AC value are the access level restriction parameter ac-BarringForSpecialAC of the first type of special access level used for ProSe communication, if the current AC value of ProSeUE includes If the AC value is 13, it is confirmed that the access level restriction parameter of the special access level for ProSe communication corresponding to the AC value of the ProSe UE includes the first type of access level restriction for the special access level for ProSe communication parameter, which will allow it to initiate access requests and access competing resources.

The AC value stored in the ProSeUE described in this embodiment or the AC value of the neighbor service access control information can be the same as the AC value in cellular communication. At this time, the AC value can be used for cellular communication, It is also used in the ProSe communication described in this embodiment. Since the application of AC value has been widely used in cellular communication, ProSe communication can directly multiplex the AC value of cellular communication without re-setting specially, so it has strong compatibility with cellular communication and simplifies the connection. Enter operation. At this time, the first designated AC value can obviously also be one or more AC values used in cellular communication.

In addition, the AC value of the ProSe UE is an AC value dedicated to the ProSe communication. The AC value is specially used for ProSe communication, and is obviously independent of the AC value in cellular communication, but the above process can also be used for ProSe communication; the advantage of this setting method is that it is beneficial to separate cellular communication and ProSe communication. control.

In a specific implementation process, the AC value stored by the ProSeUE itself may be stored in the SIM or USIM card carried by the ProSeUE. The SIM is an abbreviation of SubscriberIdentityModule, also known as a Subscriber Identity Card or a Smart Card; it is usually one of the necessary devices for communicating based on a wireless communication ID in wireless communication. The USIM is an abbreviation of UniversalSubscriberIdentityModule. Described USIM card refers to the third-generation mobile phone card, also known as (subscriber global identification card, or global subscriber identity module (USIM), also called SIM card after upgrading.

The method also includes:

Query the configuration information of the ProSeUE;

When the ProSeUE is a UE whose access is restricted in the neighbor service access control information, prohibit the ProSeUE from initiating a request for access or accessing neighbor service access competition resources within a specified time;

The determining whether the neighbor service access control information includes access level restriction information and access level restriction parameters for ProSe communication includes:

When the ProSe UE is a UE whose access is restricted in the neighbor service access control information, determine whether the neighbor service access control information includes access class restriction information and access class restriction parameters used for ProSe communication.

The proximity service access control information may include proximity service access control information based on an access class barring (AccessClassBarring, ACB) mechanism, or may include proximity service access control information based on an extended access barring (ExtendedAccessBarring, EAB) mechanism .

The proximity service access control information used in the steps S110 to S200 can be the proximity service access control information based on the ACB mechanism, and is used in combination with the configuration information in the ProSeUE to restrict the proximity service access of some UEs. The control information may be proximity service access control information based on the EAB mechanism.

When the ProSe access is performed, it usually includes a discovery process and a communication process. In this embodiment, the ACB mechanism-based proximity service access control information can be used in the communication process of the ProSe access, and the The NBS access control information based on the EAB mechanism is preferably applied in the discovery process of ProSe access.

Some user equipments form the configuration information by receiving information sent by the base station, or form the configuration information during device generation, or store the configuration information by a SIM card or a USIM card; and the SIM card Or the USIM usually determines the communication ID, so the configuration information may be configuration information formed according to different communication IDs.

The method also includes:

The proximity service access control information is received from a system message or dedicated signaling sent by the base station.

Specifically, for example, receiving the system message from a broadcast channel, the system message includes the access control information. The access control information may also be obtained from dedicated information specially used for transmitting the access control information. Both of these methods have the advantage of being simple to implement. In a specific implementation process, the base station may periodically broadcast the system message or dedicated signaling, and at this time the ProSeUE performing the above method may periodically receive the neighbor service connection from the broadcast channel The access control information is used to control the access of the ProSeUE neighbor service in this period.

Device example:

As shown in Figure 4, this embodiment provides a ProSeUE, the ProSeUE includes:

A first determining unit 110, configured to determine whether a timer for prohibiting access is running;

The prohibition unit 120 is configured to prohibit the ProSeUE from initiating a cell access request or accessing neighbor service access contention resources when the timer is running;

The second determining unit 130 is configured to determine whether the proximity service access control information includes access level restriction information and access level restriction parameters for ProSe communication when the timer is not running;

The allowing unit 140 is configured to allow the ProSe UE to initiate a cell access request or access a neighboring service when the access control information of the neighboring service does not include the access level restriction information and the access level restriction parameter used for ProSe communication access to competing resources.

The ProSeUE described in this embodiment is a user equipment used for the proximity service, specifically, a communication terminal such as a mobile phone or a tablet computer that can be used for the proximity service.

The timer is a timing device with a timing function.

The first determining unit 110, the prohibiting unit 120, the second determining unit 130, and the allowing unit 140 can all be structures with information processing functions, specifically, may include a processor and a storage medium; the processor and the storage The media are connected through an internal communication interface (such as a bus). Executable codes may be stored on the storage medium; the processor can implement the first determining unit 110, the prohibiting unit 120, the second determining unit 130 and the allowing unit 140 by reading and running the executable codes. function.

Any two of the first determining unit 110, the prohibiting unit 120, the second determining unit 130 and the allowing unit 140 may be integrated to correspond to the same processor, or respectively correspond to different processors; when the first determining unit 110 When any two of the prohibiting unit 120 , the second determining unit 130 and the allowing unit 140 are integrated and correspond to the same processor, the processor implements the functions of different units by using time division multiplexing or concurrent threads.

The processor may include an application processor AP, a digital signal processor DSP, a central processing unit CPU, a microprocessor MCU or a programmable logic array and other electronic components with information processing functions.

For the definition of the access level restriction information and the access level restriction parameters used for ProSe communication, refer to the method embodiments, and no further detailed description will be given here.

Based on the above, the ProSeUE described in this embodiment can be used to provide specific implementation hardware for the above method embodiments, which has the advantages of simple structure and high intelligence, and can also achieve the purpose of controlling UE access to cells or accessing ProSe communication competition resources .

Optionally, the access level restriction parameter for ProSe communication further includes: an access level restriction parameter for a special access level for ProSe communication; an access level for the special access level for ProSe communication The restriction parameter includes an access level restriction parameter of the first type of special access class used for ProSe communication with a specified value;

The second determination unit 130 is further configured to determine whether the AC value of the ProSe UE is at least Whether there is an access level restriction parameter of a special access level for ProSe communication corresponding to the first specified AC value and the first specified AC value of the ProSeUE is the first type of special access level for ProSe communication access level restriction parameters;

The allowing unit 140 is also used to determine whether at least one of the AC values of the ProSeUE is the first specified AC value and the first specified AC value of the ProSeUE corresponds to an access level of a special access level for ProSe communication When the restriction parameter is the access class restriction parameter of the first type of special access class used for ProSe communication, the ProSe UE is allowed to initiate a cell access request or access a neighboring service access contention resource.

Based on the technical solution of the previous device, this embodiment further clarifies that the second determining unit 130 and the allowing unit 130 can determine whether to initiate a ProSe communication access request or Access to neighbor services to access competing resources. Wherein, the first specified AC value may also be determined by the base station, and carried in the proximity service access control information sent to the ProSeUE.

The access level restriction parameter for ProSe communication includes an access level restriction factor for ProSe communication;

The second determination unit 130 is further configured to determine whether the AC value of the ProSe UE is at least There is an AC value specified for the first;

The ProSeUE also includes:

A generating unit, used for when the AC value of the ProSeUE does not have a first specified AC value, or the access level restriction parameter of the special access level for ProSe communication corresponding to the first specified AC value of the ProSeUE is not the specified Generate a random number when the first type of access level restriction parameters are used for the special access level of ProSe communication;

a comparison unit, configured to compare the random number with an access level restriction factor for ProSe communication;

The allowing unit 140 is further configured to allow the ProSeUE to initiate a cell access request or access a neighbor service access contention resource when the random number is smaller than the access level restriction factor.

The specific structure of the generating unit may also include various devices with information processing functions.

The comparison unit may include a comparator, a comparison circuit, or a processor with a comparison function.

For the specific structure of the permitting unit 140, reference may be made to the foregoing part, and will not be repeated here.

In this embodiment, through the further setting of the generation unit and the comparison unit, a control implementation manner for controlling the ProSe access is further added, which has the advantages of simple implementation and high intelligence of the electronic device.

Further, the prohibiting unit 120 is further configured to prohibit the ProSe UE from initiating a cell access request or accessing neighbor service access contention resources when the random number is not less than the access level restriction factor used for ProSe communication .

The access level restriction parameter for ProSe communication also includes an access level restriction time parameter for ProSe communication;

The ProSeUE also includes:

The second determination unit 130 is configured to determine that the ProSe UE is prohibited from initiating access according to the access level restriction time parameter of the ProSe communication when the random number is not less than the access level restriction factor for ProSe communication Prohibition times for requesting or accessing neighboring services to access competing resources;

The prohibition unit 120 is further configured to prohibit the ProSeUE from initiating an access request or accessing neighbor service access contention resources within the prohibition time.

The second determining unit 130 may further include a timer; the timer is used for counting the prohibition time.

The ProSe UEs correspond to different priority levels; the first AC values of the ProSe UEs of different priority levels are at least partially different.

The comparison unit is also used to determine the priority of the ProSe; and determine an access level restriction factor for ProSe communication for comparison with the random number according to the priority;

Wherein, the priority of the ProSeUE of the i-th priority is lower than that of the ProSeUE of the i-1th priority; the access level restriction factor for ProSe communication corresponding to the ProSeUE of the i-th priority is Access level restriction factor for ProSe communication; the i-th access level restriction factor for ProSe communication is lower than the i-1th access level restriction factor for ProSe communication; the i is not less than 2 integer.

The AC value described in this embodiment may be an AC value multiplexed with cellular communication, and at this time, the AC value of the ProSe UE is the same as the AC value of the UE in cellular communication.

At the same time, the AC value described in this embodiment may also be an AC value dedicated to the ProSe communication, and at this time, the AC value of the ProSe UE is an AC value dedicated to the ProSe communication. Preferably, the ProSeUE also includes:

a query unit, configured to query configuration information of the ProSeUE;

The prohibiting unit 120 is further configured to prohibit the ProSe UE from initiating a request for access or accessing a neighboring service to access competing resources within a specified time when the ProSeUE is a UE whose access is restricted in the neighboring service access control information ;

The second determining unit 130 is further configured to determine whether the ProSe UE access control information includes access level restriction information and the ProSe Access level restriction parameters for communication.

The ProSeUE also includes:

The receiving unit is configured to receive the proximity service access control information from the system message or dedicated signaling sent by the base station.

The receiving unit 110 may include a receiving interface, specifically a receiving antenna.

Based on the above, this embodiment provides user equipment, which can be used to implement the technical solutions described in the above method embodiments, and can also control ProSeUE to access cells or access competing resources, and can avoid ProSeUE under high interference or high load situations. access, leading to the problem that the communication quality of both cellular communication and ProSe communication is poor.

In combination with any of the above technical solutions, several specific examples are provided below:

Example one:

This example describes the process of using the AC value of the cellular ACB mechanism to access a cell when ProSeUE initiates competition for resources for D2D communication and/or applies for access to the network. The method of accessing a cell by initiating competition for resources is the first resource allocation method in D2D communication; the method of accessing the network based on application is the second resource allocation method in D2D communication. In the second resource allocation mode, in order to be able to apply for resources to the eNB for data transmission of D2D communication, etc., the ProSeUE needs to access the network and enter the connected state.

When ProSeUE needs to perform D2D communication and the network is relatively congested, the network needs to control the competition initiation and/or access application preparation. ProSeUE uses the AC value in the ACB mechanism set in the cellular network to initiate contention and/or control the access situation; at the same time, other ACB parameters related to D2D communication access are determined by the eNB through ProSe system information or dedicated information. The parameter information includes "ac-BarringInfo", "ac-BarringForProSeComm", "ac-BarringProSeFactor", "ac-BarringProSeForSpecialAC" and "ac-BarringProSeTime", etc.; after obtaining these information parameters, ProSeUE will communicate for D2D When making preparations for initiating competition for resources and/or applying for network access, use ProSe-related ACB parameters to perform calculations and judgments to determine whether to access the ProSe UE cell or not.

As shown in Figure 5, the ProSeUE described in this example uses the cellular ACB mechanism when preparing for D2D communication to initiate competition for resources and/or apply for access to the network. AC values include:

Step S101: Determine whether T302 or Tbarring is running. The T302 and the T303 are the access prohibition timers described in the above embodiments. When the T302 or Tbarring is running, go to step S108; when the T302 or Tbarring is not running, go to step S102. The running of Tbarring or T302 indicates that the access barring timer is valid, and the access barring time is not over yet. The non-running of Tbarring or T302 indicates that the access barring timer is invalid, the access barring time has expired or the access barring timer has not been started.

Step S102: Determine whether the access control information received from the base station includes ac-BarringInfo and ac-BarringForProSeComm; if yes, go to step S103; if not, go to step S104.

Step S103: Determine whether the ProSeUE has one or more AC values 11 to 15, and whether the corresponding bit setting of ac-BarringForSpecialAC corresponding to the AC value 11 to 15 of the ProSeUE is 0, if yes, then enter step S104, if not , then go to step S105.

Step S104: Grant access to the allocated competing resource pool or cell.

Step S105: Take a random number between [0,1].

Step S106: Determine whether the random number is lower than the value of the access restriction factor ac-BarringFactor in ac-BarringForProSeComm; if yes, go to step S104, if not, go to step S107.

Step S107: Forbid access to the allocated competing resource pool or cell.

Based on a further improvement of this example, in the field of public security and/or other special situations, ProSeUE can be divided into two levels: high-priority ProSeUE and non-high-priority ProSeUE. High-priority ProSeUEs have a higher access level than non-high-priority ProSeUEs; ProSeUEs that are set to high-priority need to be given priority in obtaining resources and sending data in emergency situations. The access level is set to one of special high-priority AC values, for example, the AC value is 12 and so on. Then, the AC value with high priority is sent through the access control information, so that the ProSeUE with its own AC value can make the high-priority ProSeUE have a greater probability of accessing the competing resource pool or cell.

Example two:

As shown in Figure 6, the ProSeUE described in this example uses the cellular ACB mechanism when preparing for D2D communication to initiate competition for resources and/or to apply for access to the network. AC values include:

Step S101: Determine whether T302 or Tbarring is running. The T302 and the Tbarring are the access barring timers described in the foregoing embodiments. When the T302 or Tbarring is running, go to step S108; when the T302 or Tbarring is not running, go to step S102. The running of Tbarring or T302 indicates that the access barring timer is valid, and the access barring time is not over yet. The non-running of Tbarring or T302 indicates that the access barring timer is invalid, the access barring time has expired or the access barring timer has not been started.

Step S102: Determine whether the access control information received from the base station includes ac-BarringInfo and ac-BarringForProSeComm; if yes, go to step S103; if not, go to step S104.

Step S103': Judging whether the ProSeUE has one or more AC values as the first specified AC value, and whether the corresponding bit setting of ac-BarringForSpecialAC corresponding to the first specified AC value of the ProSeUE is 0, if so, enter step S104, if If not, go to step S105A. Here, the first specified AC value includes one or more AC values added on the basis of the AC value provided by the cellular communication, for example, an AC value with a value of 16 or 17, and the like.

Step S104: Grant access to the allocated competing resource pool or cell.

Step S105A: Determine whether the ProSeUE includes a high-priority AC value; if it is, go to step S105B; if not, go to step S105C;

Step S105B: Determine the value of the first access barring factor ac-BarringFactor1 corresponding to the high priority AC value;

Step S105C: Determine the value of the first access barring factor ac-BarringFactor2 corresponding to the high priority AC value

Step S105: Take a random number between [0,1].

Step S106: Determine whether the random number is lower than the value of the access restriction factor ac-BarringFactor in ac-BarringForProSeComm; if yes, go to step S104, if not, go to step S107. The ac-BarringFactor here, when the ProseUE includes a high-priority AC value, the ac-BarringFactor is the ac-BarringFactor1; when the ProseUE does not include a high-priority AC value, the ac-BarringFactor is The ac-BarringFactor2.

Step S107: Forbid access to the allocated competing resource pool or cell.

Example 3: When the ProSeUE needs to perform D2D discovery, the ProSeUE needs to obtain resources through competition. In the second resource allocation mode, in order to be able to apply for resources from the eNB to perform D2D discovery data transmission, etc., the ProSeUE needs to access the network and enter the connected state. When the network is relatively congested, the network needs to control the initiation of competition and/or the preparation for applying for access. When ProSeUE performs D2D discovery, it sets configuration information based on the EAB mechanism, then the ProSeUE configured with EAB makes an initial emergency call, and the ProSeUE with the AC value of ProSe communication ranging from 11 to 15 will ignore any EAB information broadcast by any network. If the network does not broadcast EAB information, ProSeUE will perform ACbarring to perform access control on the allocated competing resource pool/cell. If the EAB information broadcast by the network does not prohibit the ProSeUE, then the ProSeUE will perform ACbarring; otherwise, the ProSeUE is prohibited from accessing the allocated competing resource pool/cell. If multiple core networks share the same access network, the access network must use EAB for different core networks.

In the several embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods, such as: multiple units or components can be combined, or May be integrated into another system, or some features may be ignored, or not implemented. In addition, the coupling, or direct coupling, or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be electrical, mechanical or other forms of.

The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units; Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention can be integrated into one processing module, or each unit can be used as a single unit, or two or more units can be integrated into one unit; the above-mentioned integration The unit can be realized in the form of hardware or in the form of hardware plus software functional unit.

Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the Including the steps of the above-mentioned method embodiment; and the aforementioned storage medium includes: various storage programs such as removable storage devices, read-only memory (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), magnetic disk or optical disk, etc. The medium of the code.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (20)

1. An access control method for proximity services, characterized in that the method comprises: determining whether a barring timer is running; When the timer is running, the ProSeUE is prohibited from initiating a cell access request or accessing neighbor service access contention resources; When the timer is not running, determine whether the neighbor service access control information includes access level restriction information and access level restriction parameters for ProSe communication; When the neighbor service access control information does not include the access class restriction information and the access class restriction parameter used for ProSe communication, the ProSe UE is allowed to initiate a cell access request or access a neighbor service access contention resource. 2. The method of claim 1, wherein, The access level restriction parameter for ProSe communication also includes: the access level restriction parameter for the special access level of ProSe communication; the access level restriction parameter for the special access level of ProSe communication includes: The first type of access level restriction parameter for the special access level of ProSe communication with specified value; The method also includes: When the proximity service access control information includes the access level restriction information and access level restriction parameters used for ProSe communication, determine whether at least one of the AC values of the ProSe UE is a first specified AC value and the Whether the access level restriction parameter of the special access level used for ProSe communication corresponding to the first specified AC value of the ProSeUE is the first type of access level restriction parameter of the special access level used for ProSe communication; When at least one of the AC values of the ProSeUE is the first specified AC value and the access level restriction parameter of the special access level for ProSe communication corresponding to the first specified AC value of the ProSeUE is the first type When the access level restriction parameter of the special access level of ProSe communication is used, the ProSe UE is allowed to initiate a cell access request or access a neighboring service access contention resource. 3. The method of claim 2, wherein, The access level restriction parameter for ProSe communication includes an access level restriction factor for ProSe communication; The method also includes: When the AC value of the ProSe UE does not have the first specified AC value or the access level restriction parameter of the special access level used for ProSe communication corresponding to the first specified AC value of the ProSe UE is not the first type for ProSe A random number is generated when the access level restriction parameter of the special access level of communication is used; comparing said random number with an access class restriction factor for ProSe communication; When the random number is smaller than the access level restriction factor used for ProSe communication, the ProSe UE is allowed to initiate a cell access request or access a neighboring service access contention resource. 4. The method of claim 3, wherein, The method also includes: When the random number is not smaller than the access level restriction factor used for ProSe communication, the ProSe UE is prohibited from initiating a cell access request or accessing neighbor service access contention resources. 5. The method of claim 4, wherein, The access level restriction parameter for ProSe communication also includes an access level restriction time parameter for ProSe communication; The method also includes: When the random number is not less than the access level restriction factor used for ProSe communication, according to the access level restriction time parameter of the ProSe communication, determine that the ProSe UE is prohibited from initiating an access request or accessing a neighbor service access competition the prohibition time of the resource; The ProSeUE is prohibited from initiating an access request or accessing neighbor service access competing resources within the prohibition time. 6. The method according to claim 3, 4 or 5, characterized in that, The ProSeUE corresponds to different priority levels; The first AC values of the ProSeUEs of different priority levels are at least partially different; The method also includes: determining the priority of said ProSe; determining an access level restriction factor for ProSe communication for comparison with the random number according to the priority; Wherein, the priority of the ProSeUE of the i-th priority is lower than that of the ProSeUE of the i-1th priority; the access level restriction factor for ProSe communication corresponding to the ProSeUE of the i-th priority is An access level restriction factor for ProSe communication; the i-th access level restriction factor for ProSe communication is lower than the i-1th access level restriction factor for ProSe communication; The i is an integer not less than 2. 7. The method according to any one of claims 2 to 5, characterized in that, The AC value of the ProSe UE is the same as the AC value of the UE in cellular communication. 8. The method according to any one of claims 2 to 5, characterized in that, The AC value of the ProSe UE is an AC value dedicated to the ProSe communication. 9. The method according to any one of claims 1 to 5, characterized in that, The method also includes: Query the configuration information of the ProSeUE; When the ProSeUE is a UE whose access is restricted in the neighbor service access control information, prohibit the ProSeUE from initiating a request for access or accessing neighbor service access competition resources within a specified time; The determining whether the neighbor service access control information includes access level restriction information and access level restriction parameters for ProSe communication includes: When the ProSe UE is a UE whose access is restricted in the neighbor service access control information, determine whether the neighbor service access control information includes access class restriction information and access class restriction parameters used for ProSe communication. 10. The method of claim 1, wherein, The method also includes: The proximity service access control information is received from a system message or dedicated signaling sent by the base station. 11. A kind of ProSeUE, it is characterized in that, described ProSeUE comprises: A first determination unit, configured to determine whether the access-forbidden timer is running; A prohibition unit, configured to prohibit ProSeUE from initiating a cell access request or accessing neighbor service access contention resources when the timer is running; The second determining unit is configured to determine whether the access control information of the neighbor service includes access level restriction information and access level restriction parameters used for ProSe communication when the timer is not running; a permission unit, configured to allow the ProSe UE to initiate a cell access request or access a neighbor service access into competing resources. 12. The ProSeUE according to claim 11, characterized in that, The access level restriction parameter for ProSe communication also includes: the access level restriction parameter for the special access level of ProSe communication; the access level restriction parameter for the special access level of ProSe communication includes: The first type of access level restriction parameter for the special access level of ProSe communication with specified value; The second determination unit is further configured to determine whether the AC value of the ProSe UE has at least Whether an access level restriction parameter of the special access level for ProSe communication corresponding to the first specified AC value of the ProSeUE is the first type of special access level for ProSe communication Access class restriction parameters; The permission unit is also used to limit the access level of the special access level used for ProSe communication when at least one of the AC values of the ProSeUE is the first specified AC value and the first specified AC value of the ProSeUE corresponds to the access level When the parameter is the access level restriction parameter of the first type of special access level used for ProSe communication, the ProSe UE is allowed to initiate a cell access request or access neighbor service access competition resources. 13. The method according to claim 12, wherein the access level restriction parameter for ProSe communication comprises an access level restriction factor for ProSe communication; The ProSeUE also includes: A generating unit, configured to use when the AC value of the ProSeUE does not have a first specified AC value or the access level restriction parameter of the special access level for ProSe communication corresponding to the first specified AC value of the ProSeUE is not the first specified AC value A random number is generated when a type of access level restriction parameter is used for a special access level of ProSe communication; a comparison unit, configured to compare the random number with an access level restriction factor for ProSe communication; The allowing unit is further configured to allow the ProSeUE to initiate a cell access request or access a neighboring service access contention resource when the random number is smaller than the access level restriction factor. 14. The ProSeUE according to claim 13, wherein, The prohibiting unit is further configured to prohibit the ProSe UE from initiating a cell access request or accessing neighbor service access contention resources when the random number is not less than the access level restriction factor used for ProSe communication. 15. ProSeUE according to claim 14, is characterized in that, The access level restriction parameter for ProSe communication also includes an access level restriction time parameter for ProSe communication; The second determination unit is configured to determine that the ProSe UE is prohibited from initiating an access request according to the access level restriction time parameter of the ProSe communication when the random number is not less than the access level restriction factor for ProSe communication Or the prohibition time for accessing neighboring services to access competing resources; The prohibition unit is further configured to prohibit the ProSeUE from initiating an access request or accessing neighbor service access competing resources within the prohibition time. 16. The ProSeUE according to claim 13, 14 or 15, characterized in that, The ProSeUE corresponds to different priority levels; The first specified AC values of the ProSeUEs of different priority levels are at least partially different; The comparison unit is also used to determine the priority of the ProSe; according to the priority, determine an access level restriction factor used for ProSe communication for comparison with the random number; Wherein, the priority of the ProSeUE of the i-th priority is lower than that of the ProSeUE of the i-1th priority; the access level restriction factor for ProSe communication corresponding to the ProSeUE of the i-th priority is An access level restriction factor for ProSe communication; the i-th access level restriction factor for ProSe communication is lower than the i-1th access level restriction factor for ProSe communication; The i is an integer not less than 2. 17. The ProSeUE according to any one of claims 12 to 15, wherein, The AC value of the ProSe UE is the same as the AC value of the UE in cellular communication. 18. The ProSeUE according to any one of claims 12 to 15, wherein, The AC value of the ProSe UE is an AC value dedicated to the ProSe communication. 19. The ProSeUE according to any one of claims 11 to 15, wherein, The ProSeUE also includes: a query unit, configured to query configuration information of the ProSeUE; The prohibition unit is further configured to prohibit the ProSeUE from initiating a request for access or accessing a neighbor service to access competing resources within a specified time when the ProSeUE is a UE whose access is restricted in the neighbor service access control information; The second determining unit is further configured to determine whether the ProSe access control information includes access level restriction information and is used for ProSe communication when the ProSe UE is a UE whose access is restricted in the ProSe access control information. Access level restriction parameters. 20. The ProSeUE according to any one of claims 11 to 15, wherein, The ProSeUE also includes: The receiving unit is configured to receive the proximity service access control information from the system message or dedicated signaling sent by the base station.