CN104378843A - Method for supporting bearer establishment, base station and MME - Google Patents

Abstract

The present application discloses a method for supporting bearer establishment, including: MeNB sends to MME the CSG identities supported by the cells of all secondary base stations SeNB under the coverage of the MeNB or the CSG identities of the cells where the UE under the SeNB is located; Identifies the admission authentication result of the corresponding cell, and establishes, moves the UE bearer into, or moves out of the corresponding cell according to the admission authentication result and/or the CSG membership status of the UE in the promiscuous cell. The application also discloses a method for supporting bearer establishment, a base station and a mobility management entity. By applying the technical solutions disclosed in this application, UE bearers can be correctly established or transferred to an appropriate small cell.

Description

A method for supporting bearer establishment, a base station and a mobility management entity

technical field

The present application relates to the technical field of wireless communication, and in particular to a method for supporting bearer establishment, a base station and a mobility management entity.

Background technique

Modern mobile communications tend to provide users with high-speed multimedia services, as shown in Figure 1, which is a system architecture diagram of System Architecture Evolution (SAE). in:

User Equipment (UE) 101 is a terminal device for receiving data. Evolved Universal Terrestrial Radio Access Network (E-UTRAN) 102 is a radio access network including macro base stations (eNodeBs/NodeBs) that provide UEs with an interface to access the radio network. Mobility Management Entity (MME) 103 is responsible for managing UE's mobility context, session context and security information. Serving Gateway (SGW) 104 mainly provides user plane functions, and MME 103 and SGW 104 may be in the same physical entity. The packet data network gateway (PGW) 105 is responsible for functions such as billing and lawful interception, and may also be in the same physical entity as the SGW 104 . A Policy and Charging Rules Function (PCRF) 106 provides Quality of Service (QoS) policies and charging rules. The General Packet Radio Service Support Node (SGSN) 108 is a network node device that provides routing for data transmission in the Universal Mobile Telecommunications System (UMTS). The Home Subscriber Server (HSS) 109 is the home subsystem of the UE, responsible for storing user information including the current location of the UE, the address of the serving node, user security information, and the packet data context of the UE.

In Release 12 (Rel-12), 3GPP proposed the requirements for small cell enhancement. Target scenarios for small cell enhancement include: scenarios with macro cell coverage and scenarios without macro cell coverage, indoor and outdoor, ideal and The enhancement of the non-ideal backhaul is shown in Figure 2.

For scenarios covered by macro cells, a technology that can apply carrier aggregation between different base stations is proposed. Macro cells and small cells can work in different frequency bands to serve UEs at the same time. There are many architectures for applying carrier aggregation technology between different base stations. On the control plane, the MeNB mainly controls the establishment of the UE bearer on the macro cell served by the MeNB (Master eNB: primary base station) and the SeNB (Secondary eNB: primary base station) under its coverage. On the small cell served by the secondary base station), the effect of enhancing the capacity and increasing the UE rate is achieved.

At present, a home base station (HeNB) is one of the deployment options of the small cell, and the MeNB can establish a bearer on the small cell served by the HeNB according to requirements. Within the coverage of the macro cell, multiple small cells and multiple HeNBs can be deployed. However, the CSG (Closed Subscriber Group, Closed Subscriber Group) to which the HeNB/small cell belongs may be different. For small cells whose cell access mode is closed (Closed) or hybrid (Hybrid), UEs that are not CSG members are not allowed to access, or The QoS for establishing the bearer is different. Under the architecture where the radio access network (RAN) on the signaling plane is separated, the MeNB decides whether the bearer is established on the small cell, and how the MeNB knows whether the UE is a member of the CSG to which the small cell belongs has no reasonable solution. The following specific problems exist:

1) When the UE attaches or switches to the MeNB, the MeNB can establish the bearer of the UE on the small cell provided by the SeNB. If the small cell is a CSG cell, there is currently no signaling to notify the core network to perform CSG authentication on the UE according to the UE's CSG subscription information.

2) When the UE attaches or switches to the MeNB, the MeNB can establish the bearer of the UE on the small cell provided by the SeNB. If the small cell is a CSG cell and the cell access mode is closed mode, the MeNB cannot verify whether the UE is a member of the CSG, and may The bearer of the UE that is not a member of the CSG is established on the small cell in closed mode.

3) When the UE attaches or switches to the MeNB, the MeNB can establish the bearer of the UE on the small cell provided by the SeNB. If the small cell is a CSG cell and the cell access mode is promiscuous, the MeNB cannot verify whether the UE is a CSG member, and cannot separately CSG members or non-CSG members allocate resources of different QoS levels.

4) For UE bearers established or transferred to CSG small cells, the core network does not know that they occupy CSG resources, and the core network cannot support CSG-based charging.

5) When an inter-MeNB handover occurs, the source eNB does not know that the SeNB cell under the target MeNB is a CSG cell, and will trigger X2 handover. When the target MeNB receives the handover request, it can establish the UE on the CSG small cell, but there is currently no signaling The core network is notified to authenticate the UE according to the CSG subscription information of the UE. The MeNB does not know whether the UE is allowed to access the CSG cell.

Contents of the invention

The invention provides a method for supporting bearer establishment, a base station and a mobility management entity, which can support correct establishment or transfer of UE bearer to a suitable small cell.

This application discloses a method for supporting bearer establishment, including:

The primary base station MeNB sends to the mobility management entity MME the CSG identities supported by the cells of all the secondary base stations SeNB under the coverage of the MeNB or the CSG identities of the cells where the UE under the SeNB is located;

The MeNB receives the access authentication result of the UE in the cell corresponding to the CSG identifier from the MME, and establishes, moves the UE bearer into, or moves out of the corresponding cell according to the access authentication result.

Preferably, the method further includes: the MeNB sends to the MME the CSG identity supported by the cell under the MeNB or the CSG identity of the cell where the UE under the MeNB is located;

Wherein, the cell where the UE is located includes: the cell where the UE establishes a bearer or the cell where the MeNB determines that the UE is under its coverage according to a measurement report of the UE.

Preferably, the method further includes: the MeNB sends to the MME the identity of the PLMN selected for the UE to serve the UE in the cell of the SeNB.

Preferably, the MeNB obtains from the SeNB the CSG identities supported by all cells under the SeNB under the coverage of the MeNB and/or the CSG identities of the cells where the UE under the SeNB is located;

When obtaining the CSG ID supported by all cells under the SeNB covered by the MeNB and/or the CSG ID of the cell where the UE under the SeNB is located, it further includes: when the cell is a hybrid cell, obtaining the cell access mode of the cell: mixed.

Preferably, the MeNB obtains information related to the SeNB through an interface with the SeNB GW;

When a new SeNB is accessed under the SeNB GW, and the CSG identity supported by the cell under the new SeNB is different from the CSG identity supported by the cell under the original SeNB, the method further includes: obtaining an updated SeNB through an interface with the SeNB GW Related information.

Preferably, the method further includes: the MeNB sends the CSG identities supported by all the cells under the coverage of the SeNB to the neighboring eNB or sends a CSG switching instruction to the neighboring eNB, and the CSG switching instruction indicates that when the MeNB is required to be used as the target base station During handover, S1 handover is performed; the neighbor eNB stores the received information;

During the handover, the method further includes: judging according to the stored information whether the CSG identity supported by the target MeNB or the SeNB under the coverage of the handover is different from the CSG identity supported by the source MeNB or the SeNB under the coverage of the source MeNB, if If there is a difference, trigger S1 handover, and send the CSG identifier supported by the target MeNB or all SeNB cells under its coverage to the MME; or, judge whether there is a CSG handover instruction sent by the target MeNB according to the stored information, and if so, according to The CSG handover instruction triggers S1 handover, and executes the request to the MME to perform CSG authentication on the UE.

Preferably, the MeNB receiving from the MME the UE's admission authentication result of the cell corresponding to the CSG identifier includes:

The MeNB receives the access authentication result of the UE in the cell corresponding to the CSG identifier from the MME, and learns that the access authentication result of the UE in the MeNB cell corresponding to the CSG identifier is to allow access; wherein, if the CSG identifier corresponds to When the cell is a promiscuous cell and the access authentication result is that access is allowed, the access authentication result includes an indication of access allowed and the CSG membership status of the UE in the promiscuous cell: member or non-member; The CSG membership status of the cell, based on which the MeNB knows that the CSG access authentication result of the UE in the hybrid cell is to allow access;

Alternatively, the MeNB receives an attach rejection, a location update rejection or a handover request rejection from the MME, and learns that the access authentication result of the UE in the MeNB cell corresponding to the CSG identifier is not allowed to access.

Preferably, according to the admission authentication result, establishing UE bearer in, moving into or moving out of the corresponding cell includes one or more of the following:

When the access authentication results of the UE in the cell corresponding to each CSG ID are not allowed to access, the MeNB will not establish the UE bearer in the cell corresponding to any CSG ID, and the UE bearer corresponding to the CSG ID a cell, the MeNB moves the UE bearer out of the cell;

When the SeNB cell corresponding to the CSG identifier is a hybrid cell and the access authentication result of the UE in the SeNB cell is to allow access, the MeNB can establish the UE bearer in the SeNB cell; for the UE under the SeNB cell Bearer, MeNB can further establish UE bearers for member UEs and non-member UEs based on member and non-member resource allocation strategies;

When the SeNB cell corresponding to the CSG identifier is a closed cell and the access authentication result of the UE in the SeNB cell is to allow access, the MeNB can establish the UE bearer in the SeNB cell. When there is a user plane bearer of a non-member UE under the SeNB cell, the MeNB moves the user plane bearer of the UE out of the SeNB cell corresponding to the CSG identifier;

The method further includes: when the MeNB establishes or transfers the UE bearer to the SeNB cell corresponding to the CSG ID, notifying the MME of the CSG ID supported by the SeNB cell.

Preferably, the method further includes: the MeNB indicates to the MME the identity of the serving PLMN selected for the UE in the cell of the SeNB.

Preferably, the method further comprises: receiving the UE's changed CSG membership status from the MME;

When the UE's CSG member state becomes non-member, for the SeNB cell that supports the CSG identity, if the SeNB cell is a closed cell, the MeNB will remove the UE bearer of the UE from the SeNB cell; if the SeNB cell For a hybrid cell, the MeNB can change the QoS carried by the UE based on the member and non-member resource allocation strategies;

When the UE's CSG member state becomes a member, for the SeNB cell that supports the CSG identity, if the SeNB cell is a closed cell, the MeNB can establish the bearer of the UE to the SeNB cell; if the SeNB cell is a hybrid cell, The MeNB can change the QoS of the UE bearer based on member and non-member resource allocation policies.

The application also discloses a method for supporting bearer establishment, including:

The MME receives the CSG identities supported by the cells under the MeNB coverage of the MeNB or the CSG identities of the cells where the UE under the SeNB is located;

The MME performs CSG admission authentication on the UE, and returns the UE's admission authentication result in the cell corresponding to the CSG identifier to the MeNB.

Preferably, the method further includes: the MME receiving the CSG identity supported by the cell under the MeNB or the CSG identity of the cell where the UE under the MeNB is sent by the MeNB;

Wherein, the cell where the UE is located includes: the cell where the UE establishes a bearer or the cell where the MeNB determines that the UE is under its coverage according to a measurement report of the UE.

Preferably, the method further includes: the MME receives the identifier of the PLMN selected by the MeNB for the UE to serve the UE in the cell of the SeNB sent by the MeNB.

Preferably, the MME performing CSG access authentication on the UE includes: the MME performing CSG access authentication on the UE according to the CSG access list of the UE under different PLMNs;

The admission authentication result is the admission authentication result of different PLMNs of the same CSG.

Preferably, the receiving by the MME of the CSG IDs supported by all SeNB-covered cells under the coverage of the MeNB or the CSG IDs of the cells where the UE is located under the SeNB sent by the MeNB includes: the MME receiving the CSG ID sent by the MeNB during S1 handover A CSG identifier, where the CSG identifier is one or more CSG identifiers;

The MME returns to the MeNB the UE's admission authentication result of the cell corresponding to the CSG identifier, including one or more of the following:

If the CSG access authentication result of the target MeNB of the S1 handover is that the access is not allowed, return the handover rejection;

If the cell corresponding to the CSG identity is the target MeNB of the S1 handover and the CSG admission authentication result is to allow access to the cell corresponding to the CSG identity, then return to the target MeNB of the S1 handover that the UE is in each CSG The access authentication result of the cell corresponding to the identifier;

Wherein, if the cell indicated by the CSG identifier is a promiscuous cell and the UE is allowed to access, the returned admission authentication result is the CSG member state of the UE in the promiscuous cell, implicitly indicating the CSG access authentication of the UE in the promiscuous cell. The authorization result is access allowed; or, the returned admission authentication result includes an indication of allowed access and the CSG membership status of the UE in the promiscuous cell: member or non-member.

Preferably, the MME returns to the MeNB the UE's admission authentication result of the cell corresponding to the CSG identifier including one or more of the following:

If the cell corresponding to the CSG identifier is the MeNB cell to which the UE is attached and the CSG access authentication result is that access is not allowed, return an attach rejection;

If the cell corresponding to the CSG identifier is the MeNB cell of the UE location update request and the CSG access authentication result is that access is not allowed, return a location update rejection;

If the cell corresponding to the CSG identifier is the MeNB cell corresponding to the UE service request and the CSG access authentication result is not allowed, return the service request rejection;

If the cell corresponding to the CSG ID is the MeNB cell of the UE and the CSG admission authentication result is to allow access or the MeNB cell of the UE does not support CSG, return the UE's admission authentication of the cell corresponding to each CSG ID right result;

Wherein, if the cell corresponding to the CSG identifier is a hybrid cell and the UE is allowed to access, the returned admission authentication result is the CSG member status of the UE in the hybrid cell, implicitly indicating that the CSG status of the UE in the hybrid cell is The entry authentication result is that the access is allowed; or, the returned entry authentication result includes an indication that the access is allowed and the CSG membership status of the UE in the promiscuous cell: member or non-member.

Preferably, the method further includes: receiving the CSG identifier for establishing the bearer of the UE reported by the MeNB, and charging the UE based on a corresponding charging standard of the CSG.

Preferably, the method further includes: when the UE's CSG membership status changes in a closed or hybrid cell, the MME sends the corresponding CSG ID and the UE's changed CSG membership status to the MeNB where the SeNB is located.

A base station disclosed in the present application includes: an authentication request module and a bearer management module, wherein:

The authentication request module is configured to send to the MME the CSG identifiers supported by all cells under the SeNB under the coverage of the base station or the CSG identifiers of the cells where the UE under the SeNB is located;

The bearer management module is configured to establish, move into or out of the corresponding cell the UE bearer according to the UE's admission authentication result in the cell corresponding to the CSG identifier returned by the MME and/or the UE's CSG membership status in the hybrid cell .

A mobility management entity disclosed in this application includes: a communication module and an authentication module, wherein:

The communication module is configured to receive from the MeNB the CSG identities supported by the cells under the SeNB covered by the MeNB or the CSG identities of the cells where the UE under the SeNB is located;

The authentication module is configured to perform CSG admission authentication on the UE, and return the UE's admission authentication result of the cell corresponding to the CSG identifier to the MeNB.

It can be seen from the above technical solution that in the technical solution provided by this application, the MeNB sends to the MME the CSG identity supported by the cell under the MeNB or the CSG identity of the cell where the UE under the SeNB is located; and the MeNB sends the CSG access authentication result returned by the MME to the The UE bearer is established in, moved into, or moved out of the corresponding cell, so that it can support the correct establishment or transfer of the UE bearer to an appropriate small cell, and can ensure the correct handling of the bearer offload when the UE moves in the small cell scenario. On the one hand, it improves UE Perceived data rate improves user experience, on the other hand supports billing requirements and ensures correct provision of services.

Description of drawings

Figure 1 is an architecture diagram of the existing SAE system;

Figure 2 is a deployment scenario of small cell enhancement;

FIG. 3 is a schematic diagram of a method for supporting bearer establishment according to the present invention;

FIG. 4 is a schematic diagram of Embodiment 1 of a method for supporting bearer establishment in the present invention;

FIG. 5 is a schematic diagram of Embodiment 2 of the method for supporting bearer establishment in the present invention;

FIG. 6 is a schematic diagram of Embodiment 3 of the method for supporting bearer establishment in the present invention;

FIG. 7 is a schematic diagram of Embodiment 4 of a method for supporting bearer establishment in the present invention;

FIG. 8 is a schematic diagram of Embodiment 5 of a method for supporting bearer establishment in the present invention;

FIG. 9 is a schematic diagram of the composition and structure of a preferred base station in the present invention;

FIG. 10 is a schematic diagram of the composition and structure of a preferred mobility management entity in the present invention.

detailed description

In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and examples.

FIG. 3 is a schematic diagram of a method for supporting bearer establishment according to the present invention. The method includes processing on the MeNB side and processing on the MME side. In the following description, the processing of the two parts is combined for description. The method shown in FIG. 3 includes the following steps:

Step 301: The MeNB sends to the MME the CSG identities supported by all cells under the SeNB under the coverage of the MeNB, or the CSG identities of the cells where the UE under the SeNB is located.

Further, the MeNB may simultaneously send the identifier of the PLMN selected for the UE to serve the UE in the cell of the secondary base station to the MME.

Further, when the MeNB supports CSG, the MeNB may indicate the CSG identity supported by the cell under the MeNB or the CSG identity of the cell where the UE under the MeNB is located.

The cell where the UE is located may be a cell with a bearer established for the UE, or the MeNB determines the cell under the coverage of the UE according to the measurement report of the UE. For example, assuming that the MeNB learns from the UE's measurement report that the wireless signal strength measured by the UE in neighbor cell 1 is sufficient for access, then the CSG identity of cell 1 can be considered to be the CSG identity of the cell where the UE is located.

Further, when the MeNB obtains the CSG identifier supported by the cell under the SeNB, when the cell is a hybrid cell, it can also obtain the cell access mode of the cell: hybrid (Hybrid).

Since the SeNB may directly access the MeNB, or may access the MeNB through the SeNB GW, there may be a direct interface between the MeNB and the SeNB, or it may be necessary to exchange information with the SeNB through the interface with the SeNB GW. The above-mentioned CSG identifier and cell access mode supported by the cell under the SeNB obtained by the MeNB may be directly obtained by the MeNB from the interface with the SeNB, or may be obtained through the interface with the SeNB GW.

When the SeNB GW accesses a new SeNB, and the CSG supported by the cell under the new SeNB is different from the CSG supported by the cell under the original SeNB, the SeNB GW updates the new CSG identity and/or cell access mode to the MeNB.

Further, through the information interaction between MeNB and neighbor eNB (MeNB or general eNB), MeNB informs neighbor eNB of the CSG identifiers supported by all SeNBs covered by MeNB or sends a CSG switching instruction to neighbor eNB. The CSG switching instruction indicates that when the following When MeNB is the handover of the target base station, S1 handover is performed.

Further, when the UE switches to the target MeNB from the source MeNB or general eNB, if the CSG identity supported by the target MeNB or the SeNB cells under its coverage is different from the CSG identity supported by the source MeNB or the SeNB cells under its coverage, or the CSG identity When the serving PLMN remains unchanged but the serving PLMN changes, the source MeNB or general eNB triggers S1 handover, notifies the MME to perform CSG authentication on the UE, and informs the MME of the CSG identifiers supported by the cells under the target MeNB or all SeNBs under its coverage; or the source MeNB Or generally, the eNB triggers the S1 handover according to the CSG handover instruction, and notifies the MME to perform CSG authentication on the UE.

Step 302: The MME performs CSG authentication on the UE, sends the access authentication result of the UE in the corresponding cell to the MeNB, and may also send the CSG membership status of the UE in the promiscuous cell to the MeNB.

Further, when the (target) MeNB does not support CSG and the SeNB under its coverage supports CSG, CSG authentication does not allow access, and the MME sends an indication that CSG authentication does not allow access to the (target) MeNB.

Further, if the MeNB sends the CSG identity to the MME when the UE is attached or the location is updated or the service is requested, and the CSG identity is one or more identities, then:

When the access authentication result of the MeNB cell to which the UE attaches is that access is not allowed, the MME returns an attach rejection to the UE;

If the cell corresponding to the CSG identifier is the MeNB cell of the UE location update request and the CSG access authentication result is that access is not allowed, return a location update rejection;

If the cell corresponding to the CSG identifier is the MeNB cell corresponding to the UE service request and the CSG access authentication result is not allowed, return the service request rejection;

When the cell corresponding to the CSG ID is the MeNB cell of the UE and the CSG admission authentication result is access allowed or the MeNB cell of the UE does not support CSG, the MME returns the UE's admission authentication of the cell corresponding to each CSG ID to the MeNB result;

Wherein, if the cell indicated by the CSG identifier is a hybrid cell and the UE is allowed to access, return the CSG membership status of the UE in the hybrid cell, and implicitly indicate that the CSG access authentication result of the UE in the hybrid cell is to allow access; Alternatively, the admission authentication result of the hybrid cell includes an indication of allowed access and the CSG membership status of the UE in the hybrid cell: member or non-member.

If the MeNB sends the CSG identity to the MME during the S1 handover, and the CSG identity is one or more identities, then:

When the CSG access authentication result of the target MeNB of the S1 handover is that the access is not allowed, the MME returns the handover rejection;

When the CSG access authentication result of the target MeNB of the S1 handover is to allow access, the MME returns the UE’s access authentication result of the cell corresponding to each CSG identifier to the target MeNB of the handover;

Wherein, if the cell indicated by the CSG identifier is a promiscuous cell and the UE is allowed to access, the returned admission authentication result is the CSG member state of the UE in the promiscuous cell, implicitly indicating the CSG access authentication of the UE in the promiscuous cell. The authorization result is access allowed; or, the returned admission authentication result includes an indication of allowed access and the CSG membership status of the UE in the promiscuous cell: member or non-member.

Further, if the cell corresponding to the CSG identifier is a hybrid cell, and the access authentication result of the UE in the hybrid cell is passed, the MME returns to the MeNB the CSG membership status of the UE in the hybrid cell: member or non-member .

Step 303: The MeNB decides whether to establish, move into or out of the corresponding cell the UE bearer according to the CSG authentication result of the UE sent by the MME.

Preferably, the MeNB may receive the UE's admission authentication result of the closed or hybrid cell corresponding to each CSG identifier returned by the MME, wherein the admission authentication result of the hybrid cell further includes the UE's CSG member status in the hybrid cell: member or non-member.

Further, when the access authentication results of the UE in the cell corresponding to each CSG ID fail, the MeNB cannot establish the bearer of the UE in the cell corresponding to any CSG ID. When the cell corresponding to the CSG ID has a UE When carrying, the MeNB needs to remove the UE bearer from the cell.

Further, when the SeNB cell corresponding to the CSG identifier is a hybrid cell and the access authentication result of the UE in the SeNB cell is passed, the MeNB can establish the UE bearer in the SeNB cell; for the UE under the SeNB cell Bearer, the MeNB can further establish UE bearers for member UEs and non-member UEs based on member and non-member resource allocation strategies.

Further, when the SeNB cell corresponding to the CSG identifier is a closed cell and the access authentication result of the UE in the SeNB cell is passed, the MeNB can establish the bearer of the UE in the SeNB cell, and when the CSG identifier corresponds to When there is a user plane bearer of a non-member UE under the SeNB cell, the MeNB moves the user plane bearer of the UE out of the SeNB cell corresponding to the CSG identifier.

Further, when the UE's CSG membership status becomes non-member, for the SeNB cell that supports the CSG identity, if the SeNB cell is a closed cell, the MeNB removes the bearer of the UE from the SeNB cell; if the SeNB cell is a hybrid cell , the MeNB can change the QoS of the UE bearer based on member and non-member resource allocation policies.

Further, when the UE's CSG member state becomes a member, for the SeNB cell that supports the CSG identity, if the SeNB cell is a closed cell, the MeNB can establish the UE bearer to the SeNB cell; if the SeNB cell is a hybrid cell , the MeNB can change the QoS of the UE bearer based on member and non-member resource allocation policies.

Further, when the MeNB establishes or transfers the UE bearer to the SeNB cell corresponding to the CSG identifier, it notifies the MME of the CSG identifier supported by the SeNB cell.

Step 304: The MME receives the CSG identifier for establishing the bearer of the UE reported by the MeNB, and the MME charges the UE based on the corresponding charging standard of the CSG.

Step 305: When the UE's CSG membership status in a closed or hybrid cell changes, the MME notifies the MeNB where the SeNB is located of the changed UE's CSG membership status, indicating the CSG identity and the UE's changed CSG membership status.

The technical solution of the present application will be further described in detail through several preferred embodiments below.

Embodiment one:

A schematic diagram of Embodiment 1 of the method for supporting bearer establishment in the present invention is shown in FIG. 4 . This embodiment is applicable to the scenario where the SeNB has a direct interface with the MeNB, and the MeNB establishes the bearer to the SeNB cell supporting CSG when the bearer is established during the UE attachment or location update process, where SeNB1 and SeNB2 are two SeNBs under the MeNB. The method shown in Figure 4 includes the following steps:

Step 401: The MeNB obtains the CSG ID and/or cell access mode supported by the SeNB cell through OAM, or during the establishment of the interface between the MeNB and the SeNB, or during the eNB configuration update process. During UE attach or location update process, MeNB can report the CSG identity supported by the SeNB cell covered by MeNB to MME in two ways, which are step 403 and step 406 respectively.

Step 402: UE initiates an attach request or a location update request to the MeNB.

Step 403: When the MeNB forwards the UE's attach request or location update request to the MME through an initial UE message or an uplink NAS transmission message, it simultaneously reports the CSG identifier supported by the SeNB cell covered by the MeNB to the MME. Further, the MeNB may simultaneously send the identifier of the PLMN selected for the UE to serve the UE in the SeNB cell to the MME through an initial UE message or an uplink NAS transmission message.

Step 404: The MME authenticates the UE according to the CSG subscription information of the UE (CSG list allowed under different PLMNs). Send the UE's CSG authentication result to the MeNB through the initial context establishment request or downlink NAS transmission message: allow or not; for a hybrid cell that has passed the access authentication, return the UE's CSG member status, and the returned CSG member status can be implicit Instruct the UE to allow access to the promiscuous cell, and may not return the CSG authentication result at this time.

The same CSG access authentication result and CSG membership status of the UE in different PLMNs may be different. When receiving the PLMN identity of the SeNB cell serving the UE sent by the MeNB in step 403, the MME sends the MeNB the UE’s ID of the PLMN. Access authentication result and/or CSG member status.

Step 405: MeNB forwards Attach Accept or Location Update Accept to UE.

Step 406: During the establishment of the S1 interface between the MeNB and the MME, the MME obtains the CSG identity and/or cell access mode supported by the SeNB cell covered by the MeNB. Further, the MME may simultaneously acquire the identity of the PLMN selected by the MeNB for the UE and serving the UE in the cell of the secondary base station.

Step 407: The UE initiates an attach request or a location update request to the MeNB.

Step 408: The MeNB forwards the UE's attach request or location update request to the MME through an initial UE message or an uplink NAS transmission message. Further, the MeNB may simultaneously send the identifier of the PLMN selected for the UE to serve the UE in the SeNB cell to the MME through an initial UE message or an uplink NAS transmission message.

Step 409: The MME authenticates the UE according to the UE's CSG subscription information (CSG list allowed under different PLMNs). When the CSG identifiers are all the CSG identifiers of the SeNB cell or the CSG identifiers of the MeNB cell, the access authentication passes, Send the UE's CSG authentication result to the MeNB through the initial context establishment request or downlink NAS transmission message; return the UE's CSG membership status to the hybrid cell that has passed the access authentication. The returned CSG membership status may implicitly indicate that the UE is allowed to access the promiscuous cell, and at this time, no CSG authentication result may be returned.

The UE's access authentication result of the same CSG in different PLMNs and the CSG member status may be different. When receiving the PLMN identity of the SeNB cell serving the UE sent by the MeNB in step 408, the MME sends the UE's ID of the PLMN to the MeNB. Access authentication result and/or CSG member status.

Step 410: MeNB forwards Attach Accept or Location Update Accept to UE.

Step 411: The MeNB receives the UE's CSG authentication result sent by the MME. For a hybrid cell that has passed the access authentication, the MeNB receives the CSG membership status of the UE, and for the CSG identity that has passed the access authentication, the MeNB can establish the bearer of the UE on the SeNB cell that supports the CSG identity, and the MeNB sends a newly added Cell request or bearer activation request.

Step 412: The SeNB returns a cell addition response or a bearer activation response to the MeNB.

Step 413: The MeNB sends an initial context establishment response to the MME, indicating the identity of the CSG where the UE bears.

Step 414: the MME initiates an E-RAB establishment request to the MeNB.

Step 415: For the CSG identity that passes the access authentication, the MeNB can establish the UE bearer on the SeNB cell that supports the CSG identity, and the MeNB sends a request for adding a new cell or a bearer activation request to the SeNB.

Step 416: The SeNB sends a new cell response or a bearer activation response to the MeNB.

Step 417: The MeNB sends an E-RAB establishment response to the MME, indicating the identity of the CSG where the UE carries the bearer.

Step 418: For the CSG identity that passes the authentication, the MeNB can establish the bearer of the UE on the SeNB cell that supports the CSG identity, and the MeNB sends a request for adding a new cell or a bearer activation request to the SeNB.

Step 419: The target SeNB sends a new cell response or a bearer activation response to the MeNB.

Step 420: The MeNB sends a path switch request or a bearer modification request to the MME, indicating the CSG identity of the UE bearer. The MME can charge the UE based on the CSG identity.

Step 421: MME returns path switch request confirmation or bearer modification response to MeNB.

Step 422: The MeNB releases resources, and sends a cell deletion request or a bearer deactivation request to the source SeNB.

Step 423: The source SeNB returns a cell deletion response or a bearer deactivation response to the MeNB.

Step 424: When the UE's CSG membership status changes in a closed or hybrid cell, the MME sends a UE context modification request to the MeNB, indicating the CSG and the UE's changed CSG membership status.

Step 425: MeNB returns UE context modification response to MME.

Embodiment two:

A schematic diagram of Embodiment 2 of the method for supporting bearer establishment in the present invention is shown in FIG. 5 . This embodiment is applicable to the scenario where the SeNB has a direct interface with the MeNB, and when the UE switches to the MeNB through S1 handover, the MeNB establishes a bearer to the SeNB cell supporting CSG. The method shown in Figure 5 includes the following steps:

Step 501: The MeNB obtains the CSG identity and/or cell access mode supported by the SeNB cell through OAM, or during the establishment of the interface between the MeNB and the SeNB, or during the eNB configuration update process. During the S1 handover process, the CSG identity supported by the SeNB cell covered by the MeNB can be reported to the MME in two ways, which are step 502 and step 505 respectively.

Step 502: During the establishment of the X2 interface between the source eNB and the target MeNB or during the eNB configuration update process, the source eNB obtains the CSG identity or CSG switching instruction supported by the SeNB cell under the coverage of the target MeNB. According to the CSG identity or CSG handover instruction, the source eNB initiates S1 handover.

Step 503: When the source eNB sends a handover request to the MME, it simultaneously reports the CSG identifier supported by the SeNB cell covered by the target MeNB to the MME. Further, the MeNB simultaneously sends the identifier of the PLMN selected for the UE to serve the UE in the cell of the secondary base station to the MME through a handover request message.

Step 504: The MME authenticates the UE according to the UE's CSG subscription information. When the CSG IDs are all the CSG IDs of the SeNB cell or the CSG IDs of the MeNB cell and the access authentication passes, the MME sends the UE's ID to the target MeNB through a handover request. CSG authentication result; for a promiscuous cell that passes the authentication, it returns the CSG membership status of the UE. The returned CSG membership status may implicitly indicate that the UE is allowed to access the promiscuous cell, and at this time, no CSG authentication result may be returned.

The same CSG access authentication result and CSG membership status of the UE in different PLMNs may be different. When receiving the PLMN identity of the SeNB cell serving the UE sent by the source eNB in step 503, the MME sends a handover request message to the target MeNB. The admission authentication result of the UE under the PLMN and/or the member status of the CSG.

Step 505: During the establishment of the S1 interface between the MeNB and the MME, the MME obtains the CSG identity and/or cell access mode supported by the SeNB cell covered by the MeNB.

Step 506: The source eNB sends a handover request to the MME, indicating the CSG identity supported by the SeNB cell covered by the MeNB. Further, the source eNB may simultaneously indicate to the MME the identity of the PLMN selected for the UE to serve the UE in the cell of the secondary base station through a handover request message.

Step 507: The MME authenticates the UE according to the UE's CSG subscription information. When the CSG IDs are all the CSG IDs of the SeNB cell or the CSG IDs of the MeNB cell and the access authentication passes, the MME sends the UE's ID to the target MeNB through a handover request. CSG authentication result; for a hybrid cell that has passed the access authentication, the CSG member status of the UE is returned.

The same CSG access authentication result of the UE in different PLMNs and the CSG member status may be different. When receiving the PLMN identity of the SeNB cell serving the UE sent by the source MeNB in step 506, the MME sends a handover request message to the target MeNB. The admission authentication result of the UE under the PLMN and/or the member status of the CSG.

Step 508: The MeNB receives the CSG admission authentication result of the UE sent by the MME and/or the CSG membership status of the UE in each hybrid cell that has passed the authentication. For the CSG identity that has passed the authentication, the MeNB can carry the UE Established on the SeNB cell supporting the CSG identity, the MeNB sends a request for adding a cell or a bearer activation request to the SeNB.

Step 509: The SeNB returns a cell addition response or a bearer activation response to the MeNB.

Step 510: the MeNB sends a handover request confirmation to the MME, indicating the identity of the CSG where the UE bears.

Step 511: The MME sends a handover command to the source eN, indicating the bearer configuration of the newly added SeNB cell.

Step 512: the source eNB sends a handover command to the UE, indicating the bearer configuration of the newly added SeNB cell.

Embodiment three:

A schematic diagram of Embodiment 3 of the method for supporting bearer establishment in the present invention is shown in FIG. 6 . This embodiment is applicable to a scenario where the SeNB has a direct interface with the MeNB, and when the UE switches to the MeNB through X2 handover, the MeNB establishes a bearer to the SeNB cell supporting CSG. The method shown in Figure 6 includes the following steps:

Step 601: The MeNB obtains the CSG identity and/or cell access mode supported by the SeNB cell through OAM, or during the establishment of the interface between the MeNB and the SeNB, or during the eNB configuration update process.

Step 602: the source eNB sends a handover request to the target MeNB.

Step 603: The target MeNB establishes the UE bearer under the MeNB cell, and sends a handover request confirmation to the source eNB.

Step 604: The source eNB sends RRC reconfiguration to the UE.

Step 605: The target MeNB initiates a CSG admission authentication request or a path switch request to the MME, indicating the CSG identity supported by the SeNB cell covered by the target MeNB. Further, the MeNB simultaneously indicates to the MME the identity of the PLMN selected for the UE to serve the UE in the cell of the secondary base station.

Step 606: The MME authenticates the UE according to the CSG subscription information of the UE. When the CSG identifiers are all the CSG identifiers of the SeNB cell and the MeNB cell does not support CSG, or the MeNB cell supports CSG and the CSG access authentication of the MeNB cell allows , the CSG authentication result of the UE is sent to the target MeNB through the CSG authentication response or the path switch request confirmation message; for the hybrid cell that has passed the authentication, the CSG membership status of the UE is returned. The returned CSG membership status may implicitly indicate that the UE is allowed to access the promiscuous cell, and at this time, no CSG authentication result may be returned.

The same CSG access authentication result of the UE in different PLMNs and the CSG member status may be different. When receiving the PLMN identity of the SeNB cell serving the UE sent by the MeNB in step 605, the MME sends a CSG authentication response or a path switch request The confirmation message sends the admission authentication result of the UE under the PLMN and/or the member state of the CSG to the target MeNB.

Step 607: The MeNB receives the CSG admission authentication result of the UE sent by the MME and/or the CSG membership status of the UE in each hybrid cell that has passed the authentication. For the CSG identity that has passed the authentication, the MeNB can carry the UE Established on the SeNB cell supporting the CSG identity, the MeNB sends a request for adding a cell or a bearer activation request to the SeNB.

Step 608: The SeNB returns a cell addition response or a bearer activation response to the MeNB.

Step 609: The MeNB sends a path switch request or bearer modification request to the MME, indicating the CSG identity of the UE bearer.

Step 610: The MME returns to the MeNB a path switch request confirmation or bearer modification response. The MeNB releases the bearer resources of the UE in the source Pcell.

Embodiment four:

A schematic diagram of Embodiment 4 of the method for supporting bearer establishment in the present invention is shown in FIG. 7 . This embodiment is applicable to the scenario where the SeNB is connected to the MeNB through the SeNB GW, and when the bearer is established during UE attachment or location update, the MeNB establishes the bearer to the SeNB cell supporting CSG. The method shown in Figure 7 includes the following steps:

Step 701: When the interface between the SeNB GW and the SeNB is established, obtain the CSG identity and/or cell access mode supported by the SeNB cell.

Step 702: When the interface between the MeNB and the SeNB GW is established, the MeNB obtains the CSG identity and/or cell access mode supported by the SeNB cell through the SeNB GW. During UE attach or location update process, MeNB can report the CSG identity supported by the SeNB cell covered by MeNB to MME in two ways, which are step 703 and step 706 respectively.

Steps 703 to 711 are consistent with steps 402 to 410, and will not be repeated here.

Step 712: The MeNB receives the CSG admission authentication result of the UE sent by the MME and/or the CSG membership status of the UE in each hybrid cell that has passed the authentication. For the CSG identity that has passed the authentication, the MeNB can carry the UE Established on the SeNB cell supporting the CSG identity, the MeNB sends a request for adding a cell or a bearer activation request to the SeNB.

Step 713: SeNB GW sends a new cell request or a bearer activation request to the SeNB.

Step 714: The SeNB returns a new cell response or a bearer activation response to the SeNB GW.

Step 715: The SeNB GW returns a new cell response or a bearer activation response to the MeNB.

Step 716: The MeNB sends an initial context establishment response to the MME, indicating the identity of the CSG carried by the UE.

Step 717: The MME initiates an E-RAB establishment request to the MeNB.

Step 718: For the CSG identity that passes the authentication, the MeNB can establish the bearer of the UE on the SeNB cell that supports the CSG identity, and the MeNB sends a request for adding a new cell or a bearer activation request to the SeNB.

Step 719: The SeNB GW sends a request for adding a new cell or a request for bearer activation to the SeNB.

Step 720: The SeNB returns a new cell response or a bearer activation response to the SeNB GW.

Step 721: The SeNB GW returns a new cell response or a bearer activation response to the MeNB.

Step 722: The MeNB sends an E-RAB setup response to the MME, indicating the identity of the CSG borne by the UE.

Step 723: For the CSG identity that passes the authentication, the MeNB can establish the bearer of the UE on the SeNB cell that supports the CSG identity, and the MeNB sends a request for adding a new cell or a bearer activation request to the SeNB.

Step 724: SeNB GW sends a new cell request or a bearer activation request to the SeNB.

Step 725: The SeNB returns a new cell response or a bearer activation response to the SeNB GW.

Step 726: The target SeNB GW returns a new cell response or a bearer activation response to the MeNB.

Step 727: The MeNB sends a path switch request or a bearer modification request to the MME, indicating the CSG identity of the UE bearer.

Embodiment five:

Embodiment 5 of the method for supporting bearer establishment in the present invention is shown in FIG. 8 . This embodiment is applicable to the scenario where the SeNB has a direct interface with the MeNB, and when the UE switches to the MeNB through S1 handover, the MeNB establishes a bearer to the SeNB cell supporting CSG. The method shown in Figure 8 includes the following steps:

Step 801: When the interface between the SeNB GW and the SeNB is established, obtain the CSG identity and/or cell access mode supported by the SeNB cell.

Step 802: During the process of establishing the X2 interface between the MeNB and the SeNB GW or updating the eNB configuration, the MeNB obtains the CSG identity and/or cell access mode supported by the SeNB cell through the SeNB GW. During the S1 handover process, the CSG supported by the SeNB cell under the coverage of the MeNB can be reported to the MME in two ways, which are step 803 and step 806 respectively.

Steps 803 to 808 are consistent with steps 502 to 507, and will not be repeated here.

Step 809: The MeNB receives the UE's CSG admission authentication result sent by the MME and/or the UE's CSG membership status in each hybrid cell that has passed the authentication. For the CSG identity that has passed the authentication, the MeNB can bear the UE's Established on the SeNB cell supporting the CSG identity, the MeNB sends a request for adding a cell or a bearer activation request to the SeNB.

Step 810: SeNB GW sends a new cell request or a bearer activation request to the SeNB.

Step 811: SeNB returns a new cell response or bearer activation response to SeNB GW.

Step 812: SeNB GW adds a new cell response or bearer activation response to MeNB.

Step 813: The MeNB sends a handover request confirmation to the MME, indicating the identity of the CSG carried by the UE.

Step 814: The MME sends a handover command to the source eNB, indicating the bearer configuration of the newly added cell.

Step 815: the source eNB sends a handover command to the UE, indicating the bearer configuration of the newly added cell.

Corresponding to the above method, the present application also discloses a base station and a mobility management entity, which will be briefly described below with reference to the accompanying drawings.

Fig. 9 is a schematic diagram of the structure of a preferred base station in the present invention, the base station includes: an authentication request module and a bearer management module, wherein:

The authentication request module is configured to send to the MME the CSG identifiers supported by all cells under the SeNB under the coverage of the base station or the CSG identifiers of the cells where the UE under the SeNB is located;

The bearer management module is configured to establish, move into or out of the corresponding cell the UE bearer according to the UE's admission authentication result in the cell corresponding to the CSG identifier returned by the MME and/or the UE's CSG membership status in the hybrid cell .

Fig. 10 is a schematic diagram of the composition structure of a preferred mobility management entity in the present invention, the mobility management entity includes: a communication module and an authentication module, wherein:

The communication module is configured to receive from the MeNB the CSG identities supported by all cells under the SeNB under the coverage of the MeNB or the CSG identities of the cells where the UE under the SeNB is located;

The authentication module is configured to perform CSG admission authentication on the UE, and return the UE's admission authentication result of the cell corresponding to the CSG identifier to the MeNB.

The above is only a preferred embodiment of the application, and is not intended to limit the application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the application should be included in the application. within the scope of protection.

Claims (20)

1. A method for supporting bearer establishment, comprising: The primary base station MeNB sends to the mobility management entity MME the CSG identities supported by the cells of all the secondary base stations SeNB under the coverage of the MeNB or the CSG identities of the cells where the UE under the SeNB is located; The MeNB receives the access authentication result of the UE in the cell corresponding to the CSG identifier from the MME, and establishes, moves the UE bearer into, or moves out of the corresponding cell according to the access authentication result. 2. The method according to claim 1, characterized in that: The method further includes: the MeNB sends to the MME the CSG identity supported by the cell under the MeNB or the CSG identity of the cell where the UE under the MeNB is located; Wherein, the cell where the UE is located includes: the cell where the UE establishes a bearer or the cell where the MeNB determines that the UE is under its coverage according to a measurement report of the UE. 3. The method according to claim 1, characterized in that: The method further includes: the MeNB sends to the MME the identity of the PLMN selected for the UE and serving the UE in the cell of the SeNB. 4. The method according to claim 1, characterized in that: The MeNB obtains from the SeNB the CSG identities supported by all cells under the SeNB under the coverage of the MeNB and/or the CSG identities of the cells where the UE under the SeNB is located; When obtaining the CSG ID supported by all cells under the SeNB covered by the MeNB and/or the CSG ID of the cell where the UE under the SeNB is located, it further includes: when the cell is a hybrid cell, obtaining the cell access mode of the cell: mixed. 5. The method according to claim 4, characterized in that: The MeNB obtains information related to the SeNB through an interface with the SeNB GW; When a new SeNB is accessed under the SeNB GW, and the CSG identity supported by the cell under the new SeNB is different from the CSG identity supported by the cell under the original SeNB, the method further includes: obtaining an updated SeNB through an interface with the SeNB GW Related information. 6. The method according to any one of claims 1 to 5, characterized in that: The method further includes: the MeNB sends the CSG identities supported by all cells under the MeNB coverage to the neighboring eNB or sends a CSG switching instruction to the neighboring eNB, and the CSG switching instruction indicates that when the MeNB is required to be a target base station switching, Perform S1 handover; the neighbor eNB stores the received information; During the handover, the method further includes: judging according to the stored information whether the CSG identity supported by the target MeNB or the SeNB under the coverage of the handover is different from the CSG identity supported by the source MeNB or the SeNB under the coverage of the source MeNB, if If there is a difference, trigger S1 handover, and send the CSG identifier supported by the target MeNB or all SeNB cells under its coverage to the MME; or, judge whether there is a CSG handover instruction sent by the target MeNB according to the stored information, and if so, according to The CSG handover instruction triggers S1 handover, and executes the request to the MME to perform CSG authentication on the UE. 7. The method according to any one of claims 1 to 5, characterized in that: The MeNB receiving from the MME the UE's access authentication result of the cell corresponding to the CSG identifier includes: The MeNB receives the access authentication result of the UE in the cell corresponding to the CSG identifier from the MME, and learns that the access authentication result of the UE in the MeNB cell corresponding to the CSG identifier is to allow access; wherein, if the CSG identifier corresponds to When the cell is a promiscuous cell and the access authentication result is that access is allowed, the access authentication result includes an indication of access allowed and the CSG membership status of the UE in the promiscuous cell: member or non-member; The CSG membership status of the cell, based on which the MeNB knows that the CSG access authentication result of the UE in the hybrid cell is to allow access; Alternatively, the MeNB receives an attach rejection, a location update rejection or a handover request rejection from the MME, and learns that the access authentication result of the UE in the MeNB cell corresponding to the CSG identifier is not allowed to access. 8. The method of claim 7, wherein: According to the admission authentication result, establishing, moving into or out of the corresponding cell of the UE bearer includes one or more of the following: When the access authentication results of the UE in the cell corresponding to each CSG ID are not allowed to access, the MeNB will not establish the UE bearer in the cell corresponding to any CSG ID, and the UE bearer corresponding to the CSG ID a cell, the MeNB removes the UE bearer from the cell; When the SeNB cell corresponding to the CSG identifier is a hybrid cell and the access authentication result of the UE in the SeNB cell is to allow access, the MeNB can establish the UE bearer in the SeNB cell; for the UE under the SeNB cell Bearer, MeNB can further establish UE bearers for member UEs and non-member UEs based on member and non-member resource allocation strategies; When the SeNB cell corresponding to the CSG identifier is a closed cell and the access authentication result of the UE in the SeNB cell is to allow access, the MeNB can establish the UE bearer in the SeNB cell. When there is a user plane bearer of a non-member UE under the SeNB cell, the MeNB moves the user plane bearer of the UE out of the SeNB cell corresponding to the CSG identifier; The method further includes: when the MeNB establishes or transfers the UE bearer to the SeNB cell corresponding to the CSG ID, notifying the MME of the CSG ID supported by the SeNB cell. 9. The method of claim 8, wherein: The method further includes: the MeNB indicates to the MME the identity of the serving PLMN selected for the UE in the cell of the SeNB. 10. The method of claim 8, wherein: The method further includes: receiving the UE's changed CSG membership status from the MME; When the UE's CSG member state becomes non-member, for the SeNB cell that supports the CSG identity, if the SeNB cell is a closed cell, the MeNB will remove the UE bearer of the UE from the SeNB cell; if the SeNB cell For a hybrid cell, the MeNB can change the QoS carried by the UE based on the member and non-member resource allocation strategies; When the UE's CSG member state becomes a member, for the SeNB cell that supports the CSG identity, if the SeNB cell is a closed cell, the MeNB can establish the bearer of the UE to the SeNB cell; if the SeNB cell is a hybrid cell, The MeNB can change the QoS of the UE bearer based on member and non-member resource allocation policies. 11. A method for supporting bearer establishment, comprising: The MME receives the CSG identities supported by the cells under the MeNB coverage of the MeNB or the CSG identities of the cells where the UE under the SeNB is located; The MME performs CSG admission authentication on the UE, and returns the UE's admission authentication result in the cell corresponding to the CSG identifier to the MeNB. 12. The method of claim 11, wherein: The method further includes: the MME receives the CSG identity supported by the cell under the MeNB or the CSG identity of the cell where the UE under the MeNB is sent by the MeNB; Wherein, the cell where the UE is located includes: the cell where the UE establishes a bearer or the cell where the MeNB determines that the UE is under its coverage according to a measurement report of the UE. 13. The method of claim 11, wherein: The method further includes: the MME receives the identifier of the PLMN selected by the MeNB for the UE to serve the UE in the cell of the SeNB sent by the MeNB. 14. The method of claim 13, wherein: The MME performing CSG access authentication on the UE includes: MME performing CSG access authentication on the UE according to the CSG list that the UE is allowed to access under different PLMNs; The admission authentication result is the admission authentication result of different PLMNs of the same CSG. 15. The method of claim 12, wherein: The receiving by the MME of the CSG identifiers supported by all cells under the SeNB covered by the MeNB or the CSG identifiers of the cells of the UE under the SeNB sent by the MeNB includes: the MME receiving the CSG identifier sent by the MeNB during S1 handover, The CSG identifier is one or more CSG identifiers; The MME returns to the MeNB the UE's admission authentication result of the cell corresponding to the CSG identifier, including one or more of the following: If the CSG access authentication result of the target MeNB of the S1 handover is that the access is not allowed, return the handover rejection; If the cell corresponding to the CSG identity is the target MeNB of the S1 handover and the CSG admission authentication result is to allow access to the cell corresponding to the CSG identity, then return to the target MeNB of the S1 handover that the UE is in each CSG The access authentication result of the cell corresponding to the identifier; Wherein, if the cell indicated by the CSG identifier is a promiscuous cell and the UE is allowed to access, the returned admission authentication result is the CSG member state of the UE in the promiscuous cell, implicitly indicating the CSG access authentication of the UE in the promiscuous cell. The authorization result is access allowed; or, the returned admission authentication result includes an indication of allowed access and the CSG membership status of the UE in the promiscuous cell: member or non-member. 16. The method according to claim 11 or 12, characterized in that: The MME returns to the MeNB the UE's admission authentication result of the cell corresponding to the CSG identifier, including one or more of the following: If the cell corresponding to the CSG identifier is the MeNB cell to which the UE is attached and the CSG access authentication result is that access is not allowed, return an attach rejection; If the cell corresponding to the CSG identifier is the MeNB cell of the UE location update request and the CSG access authentication result is that access is not allowed, return a location update rejection; If the cell corresponding to the CSG identifier is the MeNB cell corresponding to the UE service request and the CSG access authentication result is not allowed, return the service request rejection; If the cell corresponding to the CSG ID is the MeNB cell of the UE and the CSG admission authentication result is to allow access or the MeNB cell of the UE does not support CSG, return the UE's admission authentication of the cell corresponding to each CSG ID right result; Wherein, if the cell corresponding to the CSG identifier is a hybrid cell and the UE is allowed to access, the returned admission authentication result is the CSG member status of the UE in the hybrid cell, implicitly indicating that the CSG status of the UE in the hybrid cell is The entry authentication result is that the access is allowed; or, the returned entry authentication result includes an indication that the access is allowed and the CSG membership status of the UE in the promiscuous cell: member or non-member. 17. A method according to any one of claims 11 to 16, characterized in that: The method further includes: receiving the CSG identifier for establishing the bearer of the UE reported by the MeNB, and charging the UE based on a corresponding charging standard of the CSG. 18. A method according to any one of claims 11 to 16, characterized in that: The method further includes: when the UE's CSG membership status changes in a closed or hybrid cell, the MME sends the corresponding CSG identity and the UE's changed CSG membership status to the MeNB where the SeNB is located. 19. A base station, comprising: an authentication request module and a bearer management module, wherein: The authentication request module is configured to send to the MME the CSG identifiers supported by all cells under the SeNB under the coverage of the base station or the CSG identifiers of the cells where the UE under the SeNB is located; The bearer management module is configured to establish, move into or out of the corresponding cell the UE bearer according to the UE's admission authentication result in the cell corresponding to the CSG identifier returned by the MME and/or the UE's CSG membership status in the hybrid cell . 20. A mobility management entity, comprising: a communication module and an authentication module, wherein: The communication module is configured to receive from the MeNB the CSG identities supported by the cells under the SeNB covered by the MeNB or the CSG identities of the cells where the UE under the SeNB is located; The authentication module is configured to perform CSG admission authentication on the UE, and return the UE's admission authentication result of the cell corresponding to the CSG identifier to the MeNB.