WO2014008787A1 - Method and user equipment for distinguishing signaling sources - Google Patents

Description

 Method for distinguishing signaling source and user equipment This application claims to be submitted to the Chinese Patent Office on July 11, 2012, the application number is 201210240589.3, and the invention name is "a method for distinguishing signaling sources and user equipment" Priority of the application, the entire contents of which are incorporated herein by reference.

Technical field

 The present invention relates to the field of communications technologies, and in particular, to a method for distinguishing a signaling source and a user equipment. Background technique

 As shown in FIG. 1, in the network architecture diagram of an E-UTRAN (Evolved Universal Terrestrial Radio Access Network), the E-UTRAN is composed of an eNB (Evolved Base Station).

 The MME (Mobility Management Entity) is connected to the eNB by using an S1-MME interface; the eNB completes the access network function and communicates with the UE (User Equipment) through the air interface. For each UE attached to the network, there is one MME serving it, and the MME is called the serving MME of the UE. The S1-MME interface provides the UE with control plane services, including mobility management and bearer management functions.

 The S-GW (Serving GW) is connected to the eNB by using an S1-U interface. For each UE attached to the network, there is an S-GW serving the service. The S-GW is called a UE service. S-GW. The S1-U interface provides the user plane service for the UE, and the user plane data of the UE is carried in the S-GW by the S-U GTP (GTP, GPRS Tunneling Protocol, GPRS Tunneling Protocol; GPRS, General Packet Radio Service, General Packet Radio Service) Transfer between eNBs.

 The user plane protocol stack between the UE and the network is as shown in FIG. 2, the control plane protocol stack is as shown in FIG. 3, and the user plane protocol includes PDCP (Packet Data Convergence Protocol), RLC (Radio Link Control). , Radio Link Control), MAC (Medium Access Control) and PHY (Physical Layer); Control plane protocols include RRC (Radio Resource Control) and NAS (Non-Access Stratum, non-access) Layer), wherein the RRC layer message needs to be processed by the user plane protocol layer, and then transmitted in the air interface; the NAS layer message is transmitted in the air interface encapsulation in the RRC message; and the S1-MME interface is transmitted on the S1 connection.

 In the existing LTE/LTE-A network, the RRC/PDCP/RLC/MAC/PHY peer layer of the UE is located in the same eNB, and the NAS layer peer layer of the UE is located in the same eNB as the UE. S1 is connected to the MME.

In the existing protocol, the PDCP and the RLC entity correspond to the DRB (Data Radio Bearer)/SRB (Signal Radio Bearer) 1/SRB2, and each DRB and SRB1 and SRB2 respectively correspond to one set. PDCP and RLC entities; DRB/SRB1/SRB2 are aggregated at the MAC layer. Therefore, the UE will be composed of multiple sets of PDCP and RLC entities at the same time, but only one MAC layer and physical layer entity. The SRB belongs to the control plane bearer, and the DRB belongs to the user plane bearer. As shown in FIG. 4, the control plane connection of the UE is composed of an RRC connection between the UE and the serving eNB and an S1 connection between the eNB and the MME, and each UE in the connected state is established with the serving eNB. The RRC connection, correspondingly, establishes an S1 connection and an RRC connection for each UE in the connected state between the eNB and the MME. In the existing LTE/LTE-A (Long Term Evolution/Advanced Long Term Evolution) network, the control plane connection of the UE is connected to the user plane via the same eNB.

 In the existing hierarchical network as shown in FIG. 5, a macro cell provides a basic coverage, a local cell provides hotspot coverage, and a data/signaling interface exists between the Local Cell and the Macro Cell (wired / Wireless interface), the UE can work under the Macro eNB (macro base station) or Local eNB (local base station).

 Since the coverage of the cell controlled by the Local eNB is small and the number of UEs serving is small, the UE connected to the Local eNB can often obtain a better service shield, such as obtaining a higher service rate and a higher shield link. Therefore, when the UE connected to the Macro eNB approaches the cell controlled by the Local eNB, it can switch to the Local eNB to obtain the service provided by the Local eNB; when the UE is away from the cell controlled by the Local eNB, it needs to switch to the cell controlled by the Macro eNB to Stay connected wirelessly. Due to the large number of local eNBs and small coverage, the UE needs to frequently switch between the cell controlled by the Macro eNB and the cell controlled by the Local eNB. Since the switching frequency and the number of times of the UE are greatly increased, the risk of communication interruption of the UE when performing handover is increased. Summary of the invention

 The present invention provides a method for distinguishing a signaling source and a user equipment, which are used to solve the existing hierarchical structure of the network architecture of the E-UTRAN, because the switching frequency and the number of times of the UE are greatly increased, thereby increasing the UE in the The problem of the risk of communication interruption when switching.

 The specific technical solutions provided by the embodiments of the present invention are as follows:

 A method of distinguishing signaling sources, including:

 The user equipment UE is connected to the control planes of the two base stations, and receives control plane signaling from any eNB. The UE determines, according to the control plane signaling, identifier-related information for indicating the eNB, and according to the identifier. The relevant information determines the e B of the source of the control plane signaling.

 A user equipment that distinguishes a signaling source, where the user equipment UE is connected to two base station eNBs at the same time, including:

 a receiving unit, configured to receive control plane signaling from any eNB;

 And a determining unit, configured to determine, according to the control plane signaling, identifier related information used to indicate the eNB, and determine e B of the control plane signaling source according to the identifier related information.

Based on the foregoing technical solution, in the embodiment of the present invention, when the UE moves into an area where two base stations are simultaneously covered, the UE establishes a control plane connection with two eNBs at the same time, and receives control plane signaling from any one of the eNBs. And UE Determining the identifier-related information for indicating the eNB according to the control plane signaling, determining the eNB of the control plane information source according to the identifier-related information, thereby implementing a hierarchical network deployment in which the user plane and the control plane are separated, and deploying in the layered network In the scenario, the two eNBs can send the control plane signaling to the UE. The signaling source distinguishing method enables the UE to distinguish the control plane signaling from different eNBs, which provides a guarantee for correctly configuring the radio resources corresponding to the eNB, and effectively reduces the The risk of communication interruption occurs when the UE performs handover. DRAWINGS

 1 is a schematic diagram of a network architecture of an E-UTRAN in the background art;

 2 is a schematic diagram of a user plane protocol stack between a UE and a network in the background art;

 3 is a schematic diagram of a control plane protocol stack between a UE and a network in the background art;

 4 is a schematic diagram of a control plane connection of a UE in the background art;

 5 is a schematic diagram of a layered network deployment scenario in the background art;

 6 is a network architecture of separating a user plane and a control plane according to an embodiment of the present invention;

 7 is a schematic diagram of separation of a user plane and a control plane according to an embodiment of the present invention;

 8 is a schematic diagram of a control plane protocol stack of a local base station according to an embodiment of the present invention;

 FIG. 9 is a schematic flowchart of a signaling source distinguishing method according to an embodiment of the present invention;

 FIG. 10 is a schematic diagram of a UE connecting to two base stations according to an embodiment of the present invention;

 FIG. 11 is a schematic diagram of another UE connected to two base stations according to an embodiment of the present invention; FIG.

 FIG. 12 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;

 FIG. 13 is a schematic structural diagram of another user equipment according to an embodiment of the present invention. detailed description

 In order to reduce the frequency of handover between the Macro eNB cell and the Local eNB cell, a network deployment mode in which the user plane and the control plane are separated is introduced. As shown in FIG. 6, in this mode, when the UE is in an area covered by only the Macro eNB cell, the control plane and the user plane of the UE are both connected to the Macro eNB; when the UE moves to the overlapping area of the Macro eNB cell and the Local eNB cell At the same time, all or part of the UE user plane is transferred to the Local eNB to obtain a higher service transmission rate; the control plane connection remains in the Macro eNB to prevent the control plane connection handover failure from causing the UE to drop calls.

 The Macro eNB is an LTE macro base station; the Local eNB is a Pico eNB (micro base station) or a Home eNB (home base station) or a relay (relay) device of the LTE.

In the case where the UE user plane and the control plane are separated, the UE is simultaneously connected to two or more e Bs. As shown in FIG. 7, the UE is simultaneously connected to the Macro eNB and the Local eNB to obtain a control plane and a user plane connection, respectively. Specifically, the UE can be Part of the user plane is separated from the control plane, or all bearers of the user plane of the UE are separated from the control plane.

 In the case where the user plane and the control plane are separated, the Macro eNB has a complete user plane and control plane protocol stack, that is, a user plane protocol stack and a control plane protocol stack that are peered with the UE. The Local eNB provides user plane data transmission functions for the UE, and has a complete user plane protocol stack. The Local eNB should also have a partial RRC protocol function, and its control plane protocol stack is as shown in FIG. 8. The Sub RRC (sub-RRC) layer indicates a protocol stack that only contains part of the RRC function, for example, only includes radio resource management. Features.

 As an enhancement, there may also be broadcast messages between the UE and the Local eNB.

 In the hierarchical network architecture in which the user plane and the control plane are separated, the UE is connected to the control plane of the two eNBs at the same time, and both eNBs can send radio resources related to the RRC signaling configuration to the UE, so that the UE can distinguish the signaling. The source eNB is configured to ensure that the radio resource can be correctly configured, and the RRC message response is returned. The embodiment of the present invention provides a signaling source distinguishing method.

 Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

 In the following embodiments, the UE moves to an area jointly covered by the macro base station and the local base station as an example, that is, the UE establishes a control plane connection with the macro base station and the local base station at the same time.

 As shown in FIG. 9, the signaling source distinguishing method provided by the embodiment of the present invention mainly includes the following steps:

 Step 901: The UE establishes a control plane connection with two base station eNBs at the same time, and receives control plane signaling from any eNB.

 Step 902: The UE determines, according to the control plane signaling, the identifier related information used to indicate the eNB, and determines the e B of the control plane signaling source according to the identifier related information.

 In a specific implementation, the identifier related information includes but is not limited to: a bearer identifier, a signaling identifier, or an eNB index identifier carried in the control plane signaling.

 In the first embodiment, the identifier related information is a bearer identifier carried in the control plane signaling, and the UE determines that the bearer identifier carried in the control plane signaling is a identifier of a dedicated SRB predefined for the local base station, and determines the control. The surface signaling is derived from the local base station; otherwise, it is determined that the control plane signaling is derived from the macro base station.

 Specifically, a new signaling radio bearer SRB3 is defined for the network architecture in which the user plane and the control plane are separated, and the

SRB3 is dedicated to the local base station. As shown in Figure 10, when the UE establishes control plane signaling connection with the macro base station and the local base station, the macro base station transmits SRB1 and SRB2, and the local base station transmits SRB3.

 The control plane signaling transmitted on the SRB3 is an RRC message related to the DRB, including but not limited to: an RRC message for bearer management, an RRC message for radio resource management, and an RRC message for configuring the SRB. One or more combinations.

For example, a counter check (Counter check) message and a counter check response (Count Check Response) message for verifying the integrity of the count value (Count) of the DRB are transmitted on SRB3 dedicated to the local base station. For another example, the RRC message for DRB related radio resource management may be a message configured for the physical layer, the MAC layer, the RLC, and the PDCP of the UE; the message used for configuring the SRB may be specifically used to add, modify, and Operations such as deletion can also be used to modify SRB3.

 The configuration information related to the SRB3 may be pre-agreed by the UE and the local base station by using a protocol, or may be configured by the local base station.

 The RRC message transmitted on the SRB3 may be an RRC message specified in the existing protocol, or may be a predefined RRC message agreed by the UE and the local base station.

 Specifically, after receiving the RRC message sent by any eNB, the UE obtains the bearer identifier carried in the RRC message, and determines whether the bearer identifier is a dedicated bearer of the local base station, and determines the base station of the RRC message, and according to the RRC message pair. The MAC layer and the physical layer entity of the UE corresponding to the determined base station are configured, and the PDCP and RLC parameters mapped to the bearer transmitted on the MAC layer entity are configured.

 In the second specific implementation manner, the identifier related information is a signaling identifier carried in the control plane signaling, and the UE determines that the signaling identifier carried in the control plane signaling is an identifier of a dedicated RRC message predefined for the local base station, Determining that the control plane signaling originates from the local base station; otherwise, determining that the control plane signaling is derived from the macro base station.

 Specifically, for the network architecture where the user plane and the control plane are separated, one or more new RRC messages are defined, which are used exclusively for the local base station, and after the SRB1/SRB2 bearer is established between the UE and the local base station, as shown in FIG. The dedicated RRC message is transmitted on the bearer.

 Preferably, the local base station is allowed to use the dedicated RRC message only when the UE establishes a control plane connection with the macro base station and the local base station at the same time.

 The predefined RCC messages dedicated to the local base station include, but are not limited to: an RRC message for bearer management, an RRC message for radio resource management, and an RRC message for configuring the SRB.

 Specifically, after receiving the RRC message, the UE acquires the signaling identifier carried in the RRC message, and determines whether the signaling identifier is a predefined identifier of the signaling dedicated to the local base station, and determines the eNB of the RRC message. And configuring, according to the RRC message, a MAC layer and a physical layer entity of the UE corresponding to the determined eNB, and configuring mapping to the PDCP and the RLC transmitted on the MAC layer entity.

 For example, the predefined RRC message dedicated to the local base station includes: an RRC message for bearer management operations such as addition, modification, and deletion of the DRB; for radio resource management operations such as physical layer, MAC layer, RLC, and PDCP configuration. RRC message; RRC message for SRB1/SRB2 related radio resource management.

 In a third specific implementation manner, the identifier related information is an eNB index identifier (eNB index), and the control plane signaling that carries the eNB index identifier may be RRC signaling, MAC layer signaling, or physical layer signaling (such as physical layer downlink scheduling). Signaling or physical layer uplink scheduling signaling).

Specifically, a new parameter is defined in an RRC message specified in an existing protocol: an eNB index identifier, the eNB index The identifier is used to distinguish between different e Bs.

 In actual applications, the value of the parameter may be an enumeration type, for example, the parameter is {local, macro}, where local refers to the local base station, macro refers to the macro base station, and if the value of the parameter is {0, 1 } refers to the macro base station. If the value of this parameter is { 1,0}, it refers to the local base station; the value of this parameter can also be Boolean. For example, occupy one bit in the RRC message, and define the bit as A value of 0 refers to a macro base station, and this bit is 1 to refer to a local base station.

 After receiving the RRC message sent by the base station, the UE obtains the eNB index identifier from the predetermined location according to the agreement, determines the base station from which the RRC message is originated according to the eNB index identifier, and then, according to the RRC message, the eNB message corresponding to the determined base station. The MAC layer and the physical layer of the UE are configured, and the PDCP and RLC parameters mapped to the bearers transmitted on the MAC layer entity are configured.

 Further, when transmitting the RRC message, the UE adds an eNB index identifier to the RRC message according to the agreement to ensure that the transmitted RRC is received by the correct eNB.

 In addition to the above three cases, when the UE includes two sets of MAC layers and physical layer entities, and each set of MAC layer and physical layer entity corresponds to a different MAC layer index (MAC index) or physical layer index identifier (PHY index), The identifier related information may also be a MAC layer index identifier or a physical layer identifier I carried in the control plane signaling.

 In the fourth implementation manner, the UE determines the eNB of the control plane signaling source according to the MAC layer index identifier or the physical layer index identifier carried in the control plane signaling, which is specifically:

 Determining, by the UE, the eNB corresponding to the MAC layer index that is carried in the control plane signaling according to the association relationship between the preset MAC layer index and the eNB, and determining the eNB as the eNB of the control plane signaling source;

 Or,

 The UE determines the eNB corresponding to the physical layer index identifier carried in the control plane signaling according to the association relationship between the preset physical layer index and the eNB, and determines the eNB as the eNB of the control plane signaling source.

 In the fifth implementation manner, the physical resources or cell identifiers corresponding to the two sets of the MAC layer and the physical layer entity that are included in the UE are different, and each set of the MAC layer and the physical layer entity correspond to different base stations. According to this, the association relationship between the MAC layer and the physical layer entity and the physical resource and the base station can be established, or the association relationship between the MAC layer and the physical layer entity and the cell identifier and the base station can be established, and the physical resource or the cell identifier is used as the Determining the identification information of the base station.

 Specifically, the UE determines the physical resource (such as the receiving frequency) corresponding to the received control plane signaling, and determines the eNB of the control plane signaling source according to the association relationship between the preset MAC layer and the physical layer entity and the two base stations and physical resources;

 Alternatively, the UE determines the cell identifier corresponding to the received control plane signaling, and determines the eNB of the control plane signaling source according to the preset relationship between the MAC layer and the physical layer entity and the two base stations and the cell identifier.

 In a specific implementation, the information combining the frequency point and the PCI (Physical Cell ID) may be used as the cell identifier.

Based on the same inventive concept, an embodiment of the present invention further provides a user equipment that distinguishes a signaling source, and the user equipment For the implementation of the user equipment, refer to the implementation of the foregoing method. For details, refer to FIG. 12, the user equipment mainly includes the following units:

 The receiving unit 1201 is configured to receive control plane signaling from any eNB.

 The determining unit 1202 is configured to determine, according to the control plane signaling, identifier related information used to indicate the eNB, and determine e B of the control plane signaling source according to the identifier related information.

 The identifier related information is a bearer identifier, a signaling identifier, or an eNB index identifier that is carried in the control plane signaling. In the first implementation, the determining unit is specifically for:

 Determining that the control plane signaling originates from the local base station when determining that the bearer identifier carried in the control plane signaling is the identifier of the dedicated signaling radio bearer SRB predefined for the local base station; otherwise, determining that the control plane signaling is originated from the macro base station .

 In a second implementation, the determining unit is specifically for:

 When it is determined that the signaling identifier carried in the control plane signaling is an identifier of a dedicated RRC message predefined for the local base station, it is determined that the control plane signaling is originated from the local base station; otherwise, the control plane signaling is determined to be derived from the macro base station.

 In a third implementation, the control plane signaling carrying the eNB index identifier may be RRC signaling, MAC layer signaling, or physical layer signaling.

 In a fourth implementation, the identifier related information is a MAC layer index identifier or a physical layer index identifier carried in the control plane signaling;

 The determining unit is specifically used for:

 Determining, by the preset association relationship between the MAC layer index and the eNB, an eNB corresponding to the MAC layer index identifier carried in the control plane signaling, and determining the eNB as an eNB of the control plane signaling source;

 Or,

 The eNB corresponding to the physical layer identifier I carried in the control plane signaling is determined according to the preset relationship between the physical layer and the eNB, and the eNB is determined as the eNB of the control plane signaling source.

 In the fifth implementation manner, the determining unit is specifically configured to:

 Determining the physical resource corresponding to the control plane signaling, determining the eNB of the control plane signaling source according to the association relationship between the preset physical layer and the MAC layer entity and the base station and the physical resource, where the physical resources corresponding to each physical layer and the MAC layer entity Or the cell identifier is different;

 Or,

 The cell identifier corresponding to the control plane signaling is determined, and the eNB of the control plane signaling source is determined according to a preset relationship between the physical layer and the MAC layer entity and the two base stations and the cell identifier.

 FIG. 13 is another user equipment according to an embodiment of the present invention, including:

 a receiver 1301, configured to receive control plane signaling from any eNB;

The processor 1302 is configured to determine, according to the control plane signaling, identifier related information used to indicate the eNB, and according to the identifier phase The information determines the e B of the source of the control plane signaling.

 The identifier related information is a bearer identifier, a signaling identifier, or an eNB index identifier that is carried in the control plane signaling. In a first implementation, the processor 1302 is specifically configured to:

 Determining that the control plane signaling originates from the local base station when determining that the bearer identifier carried in the control plane signaling is the identifier of the dedicated signaling radio bearer SRB predefined for the local base station; otherwise, determining that the control plane signaling is originated from the macro base station .

 In a second implementation, the processor 1302 is specifically configured to:

 When it is determined that the signaling identifier carried in the control plane signaling is an identifier of a dedicated RRC message predefined for the local base station, it is determined that the control plane signaling is originated from the local base station; otherwise, the control plane signaling is determined to be derived from the macro base station.

 In a third implementation, the control plane signaling carrying the eNB index identifier may be RRC signaling, MAC layer signaling, or physical layer signaling.

 In a fourth implementation, the identifier related information is a MAC layer index identifier or a physical layer index identifier carried in the control plane signaling;

 The processor 1302 is specifically configured to:

 Determining, by the preset association relationship between the MAC layer index and the eNB, an eNB corresponding to the MAC layer index identifier carried in the control plane signaling, and determining the eNB as an eNB of the control plane signaling source;

 Or,

 The eNB corresponding to the physical layer identifier I carried in the control plane signaling is determined according to the preset relationship between the physical layer and the eNB, and the eNB is determined as the eNB of the control plane signaling source.

 In a fifth implementation manner, the processor 1302 is specifically configured to:

 Determining physical resources corresponding to the control plane signaling, determining an eNB of the control plane signaling source according to the association relationship between the preset physical layer and the MAC layer entity and the base station and the physical resource, where the physical resources corresponding to each physical layer and the MAC layer entity Or the cell identifier is different;

 Or,

 The cell identifier corresponding to the control plane signaling is determined, and the eNB of the control plane signaling source is determined according to a preset relationship between the physical layer and the MAC layer entity and the two base stations and the cell identifier.

 Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention is in the form of a computer program product embodied on one or more computer usable storage modules (including but not limited to disk storage, CD-ROM, optical storage, etc.) in which computer usable program code is embodied.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It should be understood that each of the flowcharts and/or block diagrams can be implemented by computer program instructions and/or Or a combination of blocks and flow diagrams and/or blocks in the flowcharts and/or block diagrams. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

 The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

 These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

 Although the preferred embodiment of the invention has been described, it will be apparent to those skilled in the art that, Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and

 It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and the modifications

Claims

Rights request 1. A method for distinguishing signaling sources, characterized by including: The user equipment UE establishes control plane connections with two base stations eB at the same time, and receives control plane signaling from any eB; the UE determines the identification related information used to indicate the eNB according to the control plane signaling, and according to the The above identification related information determines the eB from which the control plane signaling originates. 2. The method according to claim 1, characterized in that the identification-related information is a bearer identification, signaling identification or eNB index identification carried in the control plane signaling. 3. The method of claim 2, wherein the UE determines the eNB from which the control plane signaling originates based on the bearer identifier carried in the control plane signaling, specifically: When the UE determines that the bearer identifier carried in the control plane signaling is the identifier of the dedicated signaling radio bearer SRB predefined for the local base station, it determines that the control plane signaling originates from the local base station; Otherwise, it is determined that the control plane signaling originates from the macro base station. 4. The method of claim 3, wherein the control plane signaling transmitted on the dedicated SRB is a radio resource control RRC message specified in an existing protocol, or is a predefined RRC message. 5. The method of claim 2, wherein the UE determines the eNB from which the control plane signaling originates based on the signaling identifier carried in the control plane signaling, specifically: When the UE determines that the signaling identifier carried in the control plane signaling is the identifier of the dedicated RRC message predefined for the local base station, it determines that the control plane signaling originates from the local base station; Otherwise, it is determined that the control plane signaling originates from the macro base station. 6. The method according to claim 4 or 5, characterized in that, the control plane signaling or the dedicated RRC message transmitted on the dedicated SRB includes: RRC message for bearer management, RRC message for radio resource management One or more combinations of RRC messages and RRC messages used to configure SRBs. 7. The method of claim 2, wherein the control plane signaling carrying the eNB index identifier is RRC signaling, media access control MAC layer signaling or physical layer signaling. 8. The method of claim 1, wherein the identification-related information is a MAC layer index identification or a physical layer index identification carried in the control plane signaling; The UE determines the eNB from which the control plane signaling originates based on the MAC layer index identifier or physical layer index identifier carried in the control plane signaling, including: The UE determines the eNB corresponding to the MAC layer index identifier carried in the control plane signaling according to the preset association relationship between the MAC layer index identifier and the eNB, and determines the eNB as the eNB from which the control plane signaling originates; or, The UE determines the eNB corresponding to the physical layer index identifier carried in the control plane signaling according to the preset association relationship between the physical layer index identifier and the eNB, and determines the eNB as the source of the control plane signaling. eNB. 9. The method of claim 1, wherein the identification-related information is a physical resource or a cell identification; the UE determines the identification-related information used to indicate the eNB according to the control plane signaling, and determines the identification-related information according to the control plane signaling. The above identification related information determines the eNB from which the control plane signaling originates, including: The UE determines the physical resources corresponding to the control plane signaling, and determines the eNB from which the control plane signaling originates based on the preset association relationship between the MAC layer and physical layer entities and the base station and physical resources; or, The UE determines the cell identity corresponding to the control plane signaling, and determines the eNB from which the control plane signaling originates based on the preset association relationship between the MAC layer and the physical layer entity and the base station and the cell identity. 10. A user equipment that distinguishes signaling sources, characterized in that the user equipment UE has control plane connections with two base stations eNB at the same time, including: A receiving unit, used to receive control plane signaling from any eNB; Determining unit, configured to determine identification related information indicating the eNB according to the control plane signaling, and determine the eB from which the control plane signaling originates based on the identification related information. 11. The user equipment according to claim 10, characterized in that the identification-related information is a bearer identification, signaling identification or eNB index identification carried in the control plane signaling. 12. The user equipment according to claim 11, characterized in that the determining unit is specifically used to: When it is determined that the bearer identifier carried in the control plane signaling is the identifier of the dedicated signaling radio bearer SRB predefined for the local base station, it is determined that the control plane signaling originates from the local base station; Otherwise, it is determined that the control plane signaling originates from the macro base station. 13. The user equipment according to claim 11, characterized in that the determining unit is specifically used to: When it is determined that the signaling identifier carried in the control plane signaling is the identifier of the dedicated RRC message predefined for the local base station, it is determined that the control plane signaling originates from the local base station; Otherwise, it is determined that the control plane signaling originates from the macro base station. 14. The user equipment according to claim 10, wherein the identification-related information is a MAC layer index identification or a physical layer index identification carried in the control plane signaling; The determination unit is specifically used for: Determine the eNB corresponding to the MAC layer index identifier carried in the control plane signaling according to the preset association relationship between the MAC layer index identifier and the eNB, and determine the eNB as the eNB from which the control plane signaling originates; or, Determine the physical layer code carried in the control plane signaling according to the preset association relationship between the physical layer code identifier and the eNB. Identify the corresponding eNB and determine the eNB as the eNB from which the control plane signaling originates. 15. The user equipment according to claim 10, characterized in that the determining unit is specifically configured to: determine the physical resources corresponding to the control plane signaling, according to the preset physical layer and MAC layer entities and base stations and physical resources The association relationship determines the eNB from which the control plane signaling originates; or, Determine the cell identity corresponding to the control plane signaling, and determine the eNB from which the control plane signaling originates based on the preset association relationship between the physical layer and MAC layer entities and the base station and cell identity.