CN102857936B

CN102857936B - The processing method and processing device of local IP access connection in handoff procedure

Info

Publication number: CN102857936B
Application number: CN201110176017.9A
Authority: CN
Inventors: 王静; 霍玉臻; 周娜
Original assignee: ZTE Corp
Current assignee: Yancheng High Tech Zone Weishi Agricultural Development Co Ltd
Priority date: 2011-06-27
Filing date: 2011-06-27
Publication date: 2017-03-15
Anticipated expiration: 2031-06-27
Also published as: CN102857936A; WO2013000344A1

Abstract

The invention provides in handoff procedure local IP access connection processing method and processing device, the method includes：Predetermined network elements monitors radio access interface signaling message, the ambulant judgement of local IP access is carried out according to by monitoring the target BS information for obtaining, and/or, the target BS information and user's local IP access ability information according to being obtained by monitoring carries out the judgement of local IP access Access Control, wherein, the predetermined network element is local gateway or femto gateway；The predetermined network element is processed to local IP access connection according to result of determination.The present invention solves the judgement and/or the judgement accessed by local IP access for supporting scope in correlation technique to moving property of local gateway, and to local IP access connect process implement there is no method support problem, local IP access access function can be realized, and ambulant requirement in local home base station network can be supported, the program affects less on the upgrading of existing core net, it is easy to accomplish.

Description

Method and device for processing local access connection in switching process

Technical Field

The present invention relates to the field of communications, and in particular, to a method and an apparatus for processing local access connection in a handover process.

Background

In order to maintain the competitiveness of the third Generation mobile communication System in the communication field, provide a mobile communication service with faster rate, lower delay and more personalization for users, and at the same time, reduce the operation cost of operators, the standard working group of the third Generation Partnership Project (3rd Generation Partnership Project, abbreviated as 3GPP) is working on the research of the Evolved Packet System (EPS). Fig. 1 shows a schematic structural diagram of an evolved packet domain system, and as shown in fig. 1, the whole EPS system is divided into two parts, namely a radio access network and a core network. In the core Network, a Home Subscriber Server (HSS), a Mobility Management Entity (MME), a Serving GPRS Support Node (SGSN), a Policy and Charging Rule Function (PCRF), a Serving Gateway (S-GW), a packet data Gateway (PDN Gateway, P-GW), and a Packet Data Network (PDN). The functions of each part are described in detail below:

the home subscriber server is a permanent storage place of the user subscription data and is positioned in a home network subscribed by the user.

The mobility management entity is a storage place of the user subscription data in the current network and is responsible for non-access stratum signaling management from the terminal to the network, the security verification function of the terminal, the mobility management of the terminal, the tracking and paging management function and the bearing management in the idle mode of the user.

The serving GPRS support node is a service support point for a Global System for Mobile communications (GSM) Enhanced Data Rate for GSM evolution (EDGE) Radio Access Network (GERAN for short) and a Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (UMTS Terrestrial Radio Access Network, UTRAN for short) user to Access a core Network, and is similar to a mobility management entity in function and responsible for functions such as location update, paging management, bearer management, and the like of the user.

The service gateway is a gateway from a core network to a wireless system and is responsible for user plane bearing from a terminal to the core network, data caching in a terminal idle mode, a function of initiating a service request at a network side, legal monitoring and a function of routing and forwarding packet data; the service gateway is responsible for counting the condition of the user terminal using the wireless network, generating a bill of the terminal using the wireless network and transmitting the bill to the charging gateway.

The packet data gateway is a gateway of an evolution system and an external packet data network of the system, is connected to the Internet and the packet data network, and is responsible for functions of Internet Protocol (IP) address allocation, charging function, packet filtering, policy control and the like of a terminal.

The packet data network is an IP service network of an operator, and provides IP services for users through a core network of the operator.

The policy charging rule function entity is a server in the evolved system that is responsible for providing rules in charging control, online credit control, threshold control, and Quality of Service (QoS) policies.

The Radio access Network is composed of an Evolved node b (eNB) and a 3G Radio Network Controller (RNC), and is mainly responsible for receiving and transmitting Radio signals, and manages Radio resources, resource scheduling, and access control of an air interface by contacting the air interface with a terminal.

The serving GPRS support node is an upgraded SGSN, can support an S4 interface with a serving gateway, and performs interworking with a mobility management unit by using a GPRS Tunneling Protocol version 2 (referred to as GTPv 2). Whereas for SGSNs supporting 3G core networks the Packet Switching (PS) domain network architecture differs from that of fig. 1. At this time, the SGSN and the MME are connected by a Gn interface, and communicate by using a GPRS Tunneling Protocol version 1 (GTPv 1 for short). The SGSN, which cannot be connected to the serving Gateway, is connected to a Gateway GPRS Support Node (GGSN for short) through a Gn interface to directly perform packet data network access.

A Home base station (Home NodeB, abbreviated as HNB) or an evolved Home base station (Home eNodeB, abbreviated as HeNB) is a small-sized and low-power base station, which is used as an exclusive resource of some users, and is deployed in private places such as homes, groups, companies, schools, and the like for use, and mainly aims to provide a higher service rate for the users and reduce the cost required for using high-rate services, and meanwhile, make up for the deficiency of coverage of the existing distributed cellular wireless communication system. The home base station has the advantages of material benefit, convenience, low power output, plug and play, broadband access, single-mode terminal use and the like.

The home base station may be directly connected to the core network, as shown in fig. 2(a), or may be accessed to the core network through a logical network element, which is a home base station gateway, as shown in fig. 2(b), where the home base station gateway mainly has functions of: the safety of the home base station is verified, the registration of the home base station is processed, the home base station is operated, maintained and managed, the home base station is configured and controlled according to the requirements of an operator, and the home base station is responsible for exchanging data of a core network and the home base station.

In order to implement a Local Access function (including Local IP Access (LIPA) or selective IP Traffic Offload (SIPTO)), that is, a Local Access of the terminal to other IP devices in the home network, IP devices in the enterprise network, or the internet, a Local Gateway (L-GW) is added, as shown in fig. 3. The addition of the local access gateway can provide strong support for local access technology, and the local gateway can be combined with the wireless side network element or arranged near the wireless side network element (namely, externally arranged). The Local gateway comprises a Local PGW (Local PGW, L-PGW for short) and a Local GGSN (Local GGSN, L-GGSN for short).

In the mobile communication network architecture, the data flow paths for local access and conventional core network access are shown in fig. 3. For a user supporting local access, a traditional core network access data path and a local access data path can be established at the same time. For the connection of local access, the local access data path is from the terminal to the wireless side network element to the local access gateway (such as L-PGW and L-GGSN), and the data transmission does not pass through the core network. In order to achieve local access of the terminal to other IP devices of the home network or to the internet, two connections may be established, the first local access data path directly accessing the internet (internet IP connection, i.e. SIPTO connection). The second local access data path directly accesses the other IP devices of the home network (home network IP connection, i.e. LIPA connection).

Fig. 4 is a network architecture diagram of an enterprise network supporting local access, which is described by taking a 3G network deployment manner as an example, and the deployment manner of an LTE network is similar, but different interfaces are specifically adopted, and details are not described again. One enterprise network can deploy one or more local home base station networks, and the local home base station network is composed of a plurality of home base stations and is used for covering different areas. The base stations within the local home base station network may provide IP connectivity for local access by users through one or several local gateways. The home base stations in an enterprise local network only belong to one local home base station network. The local gateway is deployed on an interface between the home base station and the home base station gateway, the information of the interface between the home base station and the home base station gateway is monitored to provide local access service for a user, and one L-GW only belongs to one single local home base station network. The user can enjoy the service by accessing the packet data network through the home base station and the local gateway, and the packet data network can provide service for the users in a plurality of local home base station networks. Because the enterprise network device is accessed to the core network through the internet as a transport bearer, and the mobile network operator considers that such access is non-trusted, the device access to the core network of the enterprise network needs to ensure the Security of the core network through a Security Gateway (SeGW) device of the mobile network operator, that is, an IP Security (IPsec) tunnel between a home base station (or a local Gateway) and a Security Gateway needs to be established.

The architecture of the enterprise network supporting local access can support continuity of local access services of users in the same local home base station network. The local gateway is deployed on an interface between the base station and the home base station gateway and can monitor registration messages of home base stations in all local home base station networks, so that the local gateway can find out whether a user in a connection state is switched to a target base station outside the local home base station networks, and whether local access mobility is supported or not can be preliminarily determined through judgment of the target base station identification. Similarly, the femtocell gateway can find whether the target base station switched by the user is in the same local gateway service range as the source femtocell according to the corresponding relation between the local gateway and the subordinate femtocell recorded during the registration of the femtocell, so that the determination of the local access mobility can be performed. Although the architecture has implementation advantages for determining mobility, the prior art cannot support the determination of mobility support range and/or the determination of local access for the local gateway in the architecture and the specific implementation of the processing of local access connection.

Disclosure of Invention

The present invention is directed to a method and an apparatus for processing local access connection in a handover process, so as to at least solve the above problem.

One aspect of the present invention provides a method for processing local access connection in a handover process, including: a predetermined network element monitors a wireless access interface signaling message; judging local access mobility according to target base station information obtained through monitoring, and/or judging local access control according to the target base station information obtained through monitoring and user local access capability information, wherein the predetermined network element is a local gateway or a home base station gateway; and the predetermined network element processes the local access connection according to the judgment result.

Another aspect of the present invention provides an apparatus for processing a local access connection during handover, the apparatus being included in a predetermined network element, the apparatus comprising: the acquisition module is used for monitoring a wireless access interface signaling message to acquire target base station information and/or local access capacity information; the judging module is used for judging the local access mobility according to the target base station information and/or judging the local access control according to the target base station information and the user local access capacity information; the processing module is used for processing the local access connection according to the judgment result; the predetermined network element is a local gateway or a femtocell gateway.

The invention provides a local access connection processing method aiming at the above architecture, in the method, a predetermined network element monitors a wireless access interface signaling message, judges the local access mobility according to the target base station information acquired by monitoring, and/or judges the local access control according to the target base station information acquired by monitoring and the user local access capability information, and processes the local access connection according to the judgment result, thereby solving the problems that the mobility support range judgment and/or the local access judgment of the local gateway and the specific implementation of the local access connection processing in the related technology can not be supported, the local access function can be realized, the requirement of the mobility in the local home base station network can be supported, the proposal has less influence on the upgrading and reconstruction of the existing core network, and the implementation is easy.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a schematic structural diagram of an evolved packet domain system according to the related art;

fig. 2 is a schematic diagram of a home base station accessing a core network according to the related art;

fig. 3 is a data flow path diagram of a local access and a conventional core network access according to the related art;

fig. 4 is a network architecture diagram of a home or enterprise network supporting a local access service according to the related art;

fig. 5 is a flowchart of a method for processing a local access connection during handover according to an embodiment of the present invention;

fig. 6 is a block diagram of a processing apparatus for local access connection in a handover procedure according to an embodiment of the present invention;

fig. 7 is a flowchart of a processing method of a local access connection in a handover process according to embodiment 1;

fig. 8 is a flowchart of a processing method of a local access connection in a handover process according to embodiment 2;

fig. 9 is a flowchart of a processing method of a local access connection in a handover procedure according to embodiment 3;

fig. 10 is a flowchart of a processing method of a local access connection in a handover procedure according to embodiment 4;

FIG. 11 is a flowchart of a processing method of a local access connection in a handover procedure according to embodiment 5;

fig. 12 is a flowchart of a processing method of a local access connection in a handover procedure according to embodiment 6.

Detailed Description

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Fig. 5 is a flowchart of a method for processing local access connection in handover process according to an embodiment of the present invention, as shown in fig. 5, the method includes:

step S502, the predetermined network element monitors a wireless access interface signaling message, where the type of the wireless access interface changes with the change of the actual usage scenario, and may include at least one of the following: iu interface, Iuh interface, S1 interface;

step S504, a predetermined network element judges the local access mobility according to the target base station information obtained by monitoring, and/or judges the local access control according to the target base station information obtained by monitoring and the user local access capability information, wherein the predetermined network element is a local gateway or a home base station gateway;

step S506, the predetermined network element processes the local access connection in the handover process according to the determination result.

Through the method, the preset network element monitors the signaling message of the wireless access interface, judges the local access mobility according to the target base station information acquired through monitoring, and/or judges the local access control according to the target base station information acquired through monitoring and the local access capability information of the user, and processes the local access connection according to the judgment result, thereby solving the problems that the mobility support range judgment and/or the local access judgment of the local gateway and the specific implementation of the local access connection processing in the related technology cannot be supported, realizing the local access function, and supporting the requirement of the mobility in the local femtocell network.

In the local access mobility judgment process, the predetermined network element can judge whether the target base station is connected to a local gateway connected with the source home base station or not according to the target base station information, if so, the user is judged to support the local access mobility under the target base station, and otherwise, the user is judged not to support the local access mobility under the target base station. In the process of judging local access control, the predetermined network element can judge whether the target base station information is contained in the user local access capability information, if so, the user is judged to support local access under the target base station, otherwise, the user is judged not to support local access under the target base station. It should be noted that, with the development of the technology, the influence factors of the local access mobility and the local access control may change, and the specific process of the determination may also change, but the determination method in this embodiment may be adopted, that is, the determination may still be performed by the predetermined network element specified above (since the layout of the predetermined network element in the network determines that it can acquire the relevant information, so as to perform the determination according to the information).

In the following, some processing manners that can be selected by the predetermined network element in the process of processing the local access connection according to the determination result are described by taking the predetermined network element as a local gateway and a home base station gateway as examples.

The predetermined network element is a local gateway (see examples 1 and 2 for details)

(1) If the local gateway can simultaneously perform the determination of the local access mobility and the local access control (one possible reason is that the local gateway currently acquires the target base station information and the user local access capability information by monitoring), then:

if the local gateway judges that the user can not support the local access mobility under the target base station, the local gateway releases the local access connection;

and if the local gateway judges that the user can not support the local access function under the target base station, the local gateway releases the local access connection.

If the local gateway determines that the user can support local access mobility under the target base station and supports local access functionality, the local gateway maintains the local access connection.

(2) If the local gateway only determines the local access mobility (one possible reason is that the local gateway currently acquires the target base station information by monitoring and does not acquire the user local access capability information), then:

if the local gateway judges that the user can support the local access mobility under the target base station, the local gateway keeps the local access connection and continues the switching process.

In this case of (2), one way to improve the local access control decision is that the local gateway may notify the core network mobility management unit of the local access mobility decision result, the core network mobility management unit further performs the local access control decision by combining the target base station information and the local access subscription information, and the core network mobility management unit performs the maintenance or release operation on the local access connection according to the decision result. Specifically, if the determination result is that the user supports local access mobility under the target base station, after the local gateway determines the local access mobility according to the target base station information, the local gateway may notify the core network mobility management unit of the determination result of the local access mobility; the core network mobility management unit executes the judgment of local access control according to the target base station information and the local access subscription information; and the core network mobility management unit keeps the local access connection and continues to execute the switching process under the condition that the judgment result is that the user supports the local access under the target base station, and releases the local access connection under the condition that the judgment result is that the user does not support the local access under the target base station. The determination result of the local access mobility may be indicated by the displayed indication information, or may be indicated by the presence or absence of a local access parameter (e.g., local access bearer information).

In this case of (2), another way to improve the local access control decision is to perform the local access control decision by the interaction between the local gateway and the core network mobility management unit. If the determination result is that the user supports the local access mobility under the target base station, after the predetermined network element determines the local access mobility according to the target base station information, the following two methods can be specifically adopted:

the local gateway sends the target base station information to a core network mobility management unit; the core network mobility management unit executes the judgment of local access control according to the target base station information and the local access subscription information, and returns the judgment result to the local gateway; the local gateway keeps the local access connection and continues to execute the switching process under the condition that the judgment result is that the user supports the local access under the target base station, and releases the local access connection under the condition that the judgment result is that the user does not support the local access under the target base station; or,

the local gateway acquires the local access capability information of the user from the core network mobility management unit, judges the local access control according to the target base station information and the acquired local access capability information of the user, keeps the local access connection under the condition that the judgment result is that the user supports the local access under the target base station, continues to execute the switching process, and releases the local access connection under the condition that the judgment result is that the user does not support the local access under the target base station.

(II) the predetermined network element is a femtocell gateway (see examples 3-6 for details of processing)

(1) If the femtocell gateway can simultaneously perform the determination of local access mobility and local access control (one possible reason is that the femtocell gateway currently acquires target base station information and user local access capability information by monitoring), then:

if the home base station gateway judges that the user can not support the local access mobility under the target base station, the home base station gateway informs the local gateway or a core network mobility management unit to release the local access connection;

and if the home base station gateway judges that the user can not support local access under the target base station, the home base station gateway informs the local gateway or a core network mobility management unit to release local access connection.

If the home base station gateway determines that the user can support local access mobility and local access under the target base station, the home base station gateway maintains the local access connection.

2) If the femtocell gateway only determines local access mobility (one possible reason is that the femtocell gateway currently acquires target base station information through monitoring and does not acquire user local access capability information), then:

if the home base station gateway determines that the user can support local access mobility under the target base station, the home base station gateway maintains the local access connection.

In this case of (2), one way to improve the local access control decision is that the hnb gateway may notify the core network mobility management unit of the local access mobility decision result, the core network mobility management unit further performs the local access control decision by combining the target base station information and the local access subscription information, and the core network mobility management unit performs the maintenance or release operation on the local access connection according to the decision result. Specifically, if the determination result is that the user supports local access mobility under the target base station, after the home base station gateway determines the local access mobility according to the target base station information, the home base station gateway may notify the core network mobility management unit of the determination result of the local access mobility; the core network mobility management unit executes the judgment of local access control according to the target base station information and the local access subscription information; and the core network mobility management unit keeps the local access connection and continues to execute the switching process under the condition that the judgment result is that the user supports the local access under the target base station, and releases the local access connection under the condition that the judgment result is that the user does not support the local access under the target base station. The determination result of the local access mobility may be indicated by the displayed indication information, or may be indicated by the presence or absence of a local access parameter (e.g., local access bearer information).

In this case of (2), another way to improve the local access control decision is to perform the local access control decision by the interaction between the femtocell gateway and the core network mobility management unit. If the determination result is that the user supports the local access mobility under the target base station, after the predetermined network element determines the local access mobility according to the target base station information, the following two methods can be specifically adopted:

the home base station gateway sends the target base station information to a core network mobility management unit; the core network mobility management unit executes the judgment of local access control according to the target base station information and the local access subscription information, and returns the judgment result to the home base station gateway; the home base station gateway keeps the local access connection under the condition that the judgment result is that the user supports the local access under the target base station, continues to execute the switching process, and releases the local access connection under the condition that the judgment result is that the user does not support the local access under the target base station; or,

the home base station gateway acquires user local access capability information from a core network mobility management unit, judges local access control according to target base station information and the acquired user local access capability information, keeps local access connection under the condition that a judgment result is that a user supports local access under a target base station, continues to execute a switching process, and releases the local access connection under the condition that the judgment result is that the user does not support local access under the target base station.

When the predetermined network element is a home gateway, the home gateway releases the local access connection, and when the predetermined network element is a home base station gateway, the home base station instructs the home gateway or the core network mobility management unit to release the local access connection.

The predetermined network element is a local gateway, and when the local gateway determines to release the local access connection, the switching process is stopped, and the local access connection release is initiated. Specifically, the method comprises the following steps:

when the local gateway determines to release the local access connection, the switching process is stopped, the local access connection release is initiated, when the local access bearer deletion message returned by the core network mobility management unit is received, the local access bearer information in the Source to target Container (Source target Container) is deleted, and then the switching process is continuously executed (a switching request is initiated to the core network mobility management unit), wherein the specific processing process is shown in embodiments 1 and 2; or,

when the local gateway determines to release the local access connection, the local gateway instructs the source femtocell to terminate the switching process and informs the source femtocell to restart the switching process when receiving a bearer release message carrying the local access bearer release information returned by the core network mobility management unit, the local gateway initiates the local access connection release, and the source femtocell restarts the switching process when receiving the bearer release message carrying the local access bearer release information returned by the core network mobility management unit. The specific processing procedures are shown in examples 1 and 2.

And (II) the predetermined network element is a home base station gateway, and the home base station gateway stops the switching process when determining to inform the local gateway or the core network mobility management unit to release the local access connection. Specifically, the method comprises the following steps:

and when the home base station gateway determines to inform the local gateway or the core network mobility management unit to release the local access connection, the switching process is stopped. The femtocell gateway indicates a local gateway or a core network mobility management unit to initiate local access connection release, deletes local access bearer information in a Source to Target Container (Source to Target Container) when receiving a local access bearer deletion message returned by the core network mobility management unit, and then continues to execute a switching process (initiate a switching request to the core network mobility management unit), wherein the specific processing process is shown in embodiment 3-6; or,

and when the home base station gateway determines to inform the local gateway or the core network mobility management unit to release the local access connection, the switching process is stopped. The home base station gateway indicates a local gateway or a core network mobility management unit to initiate local access connection release, and indicates a source home base station to terminate a switching process and informs the source home base station to reinitiate the switching process when receiving a bearer release message carrying local access bearer release information returned by the core network mobility management unit; when receiving a bearer release message carrying local access bearer release information returned by the core network mobility management unit, the source hnb re-initiates the handover process, where the specific processing procedure is shown in embodiment 3-6.

Preferably, the target base station information may include: target base station identity/address, target base station Closed Subscriber Group (CSG) identity, etc. may identify information of target base station attributes. The user local access capability information may include: the information that can mark the support range of the local access service of the user, such as the identification information of the closed user group bound by the local access service access point name of the user, the identification/address set information of the base station supported by the local access service of the user, and the like. The user local access service may be a currently activated service or all local access services subscribed by the user.

The above determination of the local access mobility includes: and judging whether the user moves out of the local home base station network under the target base station. The method supports local access mobility, namely that the user does not move out of the local home base station network under the target base station, and does not support local access mobility, namely that the user moves out of the local home base station network under the target base station. The optional above determination process may perform the range determination that the user can support the local access service in the local femtocell network in combination with the user local access capability information.

The determination of local access control includes: and judging whether the user supports the activated local access service under the target base station. And local access is supported, namely, the user supports the activated local access service under the target base station. Local access is not supported, that is, the user does not support the activated local access service under the target base station. Optionally, in the determining process, the local gateway may obtain the local access capability information of the user or obtain the local access capability information after performing signaling interaction with the core network mobility management entity.

It should be noted that, for local access mobility and local access control, no matter what name is used, the referred determination content does not change substantially, i.e., even if the determination name changes, all the embodiments in the present application are equally applicable. As technology evolves, a more appropriate nomenclature for local access mobility or local access control is generated, and using this nomenclature instead of local access mobility or local access control does not affect the implementation of all embodiments of the present application.

Fig. 6 is a block diagram of a device for processing local access connection in handover according to an embodiment of the present invention, where the device is included in a predetermined network element, and the device includes: an obtaining module 62, configured to monitor a wireless access interface signaling message to obtain target base station information and/or local access capability information; a decision module 64, configured to perform a decision on local access mobility according to the target base station information, and/or perform a decision on local access control according to the target base station information and the user local access capability information; a processing module 66, configured to process the local access connection in the handover process according to the determination result; the predetermined network element is a local gateway or a femtocell gateway.

Through the structure, the acquisition module 62 monitors the signaling message of the wireless access interface to acquire target base station information and/or local access capacity information, the judgment module 64 judges the local access mobility according to the target base station information and/or judges the local access control according to the target base station information and the user local access capacity information, the processing module 66 processes the local access connection according to the judgment result, solves the problems that the judgment of mobility support range and/or the judgment of the local access for the local gateway and the specific implementation of the processing of the local access connection in the related technology can not be supported, can realize the local access function, and can support the requirement of mobility in the local home base station network, and the scheme has less influence on the upgrading and reconstruction of the existing core network, and the implementation is easy.

The following described embodiments 1-6 combine the technical solutions of the above described preferred embodiments.

Example 1

Fig. 7 is a flowchart of a processing method of local access connection in a handover process according to embodiment 1, and this embodiment takes a handover process of a 3G network as an example to describe the processing method of local access connection, which is specifically as follows:

in step 701, when a user enters a connection state, the SGSN issues the local access capability information of the user to the wireless side network element through an Iu interface message (RAB assignment message, downlink transmission message, or handover request message), and since the L-GW is deployed on the Iuh interface between the hnb and the hnb gateway, the L-GW can acquire this information. The above operation is an alternative way for the L-GW to learn the user local access capability information. In addition, the L-GW may locally configure the user local access capability information. The user local access capability information includes: the information that can mark the support range of the local access service of the user, such as the identification information of the closed user group bound by the local access service access point name of the user, the identification/address set information of the base station supported by the local access service of the user, and the like. The user local access service may be a currently activated service or all local access services subscribed by the user.

Step 702, the source femtocell selects the target base station to initiate handover if the current base station can not continue to serve the user according to the measurement report reported by the user. If the selected target base station is the home base station, the handover request message carries the CSG identifier information of the target base station in addition to the identifier/address of the target base station.

And 703, after receiving the handover request message, the local gateway acquires the target base station information, judges whether the user moves out of the local femtocell network according to the identifier of the target base station, and executes local access mobility judgment. Specifically, since one L-GW serves only one local hnb network, if the target base station is still connected to the L-GW, the L-GW may determine that the user is still located in the local hnb network after handover, and the local access mobility may be supported, otherwise, it is determined that the local access mobility cannot be supported.

If the L-GW knows the user local access capability information in step 701, the L-GW may perform a determination of local access control, otherwise, it may not. The local access control judgment specifically refers to judging whether the user supports the activated local access service under the target base station. The above determination needs the L-GW to obtain it according to the comparison between the target base station identifier/address or CSG identifier and the obtained user local access capability information. If the target base station identity/address or the CSG identity is included in the user local access capability information, the local access control is passed, otherwise it is not. The local access control decision is an alternative in the present invention, which may lead to a decision by the L-GW of the holding or release of the local access connection.

Scene one: the local gateway can simultaneously judge the local access mobility and the local access control;

and if the local gateway judges that the user can not support the local access under the target base station, the local gateway releases the local access connection.

If the local gateway judges that the user can support the local access mobility and support the local access under the target base station, the local gateway keeps the local access connection and executes a normal switching process.

Scene two: the local gateway only judges the local access mobility;

if the local gateway judges that the user can support the local access mobility under the target base station, the local gateway keeps the local access connection and continues the switching process. The local gateway may notify the core network mobility management unit of the local access mobility determination result.

In this embodiment, the L-GW performs only mobility determination as an example, and since the processing manner after determination may cover scenario one, a repeated description of scenario one processing is not performed.

Therefore, in this embodiment, if the L-GW determines that the local access mobility is allowed, the local access connection is maintained, and the subsequent handover procedure is continued. And instructing the SGSN to execute local access control in the switching message, wherein the specific operation is shown in steps 704-706.

And if the L-GW judges that the local access mobility is not allowed, releasing the local access connection, and the specific operation is shown in steps 707-715.

Step 704, the local gateway carries the local access mobility decision result in the handover request message, and the message is forwarded to the SGSN through the femtocell gateway. The local access mobility judgment result is used for informing the core network mobility management unit that the user does not move out of the local femtocell network and indicating the core network mobility management unit to start the local access control judgment. The local access mobility decision result may be represented in implementation by displayed indication information or presence or absence of a local access parameter (e.g., local access bearer information).

Step 705, after receiving the local access mobility determination result, the core network mobility management unit further performs local access control determination by combining target base station information (such as an identifier, an address, a CSG identifier, and the like) and local access subscription information in the handover request, and the core network mobility management unit performs a maintaining or releasing operation on the local access connection according to the determination result.

If the SGSN judges that the local access of the user under the target base station is not allowed, initiating the release of the local access PDN connection;

if the SGSN judges that the local access of the user under the target base station is allowed, the switching process is continuously executed.

In step 706, if the SGSN initiates the release of the local access connection, the SGSN does not include the local access radio bearer information in the handover request sent to the target base station. Otherwise, the normal switching is executed.

Step 707, in combination with the determination rule in step 703, if the L-GW determines that the local access mobility is not allowed and/or the L-GW determines that the local access control fails (executed in case of scenario one), then the current handover procedure is interrupted and the local access PDN connection release is initiated. The L-GW has two specific ways to handle the local access PDN connection release, where the first way refers to step 708 to step 711, and the second way refers to step 712 to step 715.

In step 708, the L-GW indicates the source hnb handover abort via the Iu interface message and re-initiates the handover procedure upon receiving the local access rb release message. The specific implementation can adopt the existing message carrying reason values such as the switching rejection message and the downlink transmission message to represent or define a new Iu or Iuh interface message to represent.

Step 709, the L-GW initiates a local access PDN connection release procedure.

Step 710, after receiving the local access PDP context release or local access PDN connection release message, the SGSN releases the radio bearer corresponding to the local access connection via an RAB release message.

Step 711, after receiving the message carrying the release of the local access radio bearer, the source hnb deletes the corresponding radio bearer resource and re-initiates the handover procedure.

In step 712, the L-GW initiates a local access PDN connection release procedure.

Step 713, after receiving the local access PDP context release or local access PDN connection release message, the SGSN releases the radio bearer corresponding to the local access connection via an RAB release message.

Step 714, after receiving the message carrying the release of the local access radio bearer, the L-GW modifies the bearer information in the source to targetcontext, and deletes the local access radio bearer.

Step 715, the L-GW continues the suspended handover procedure and sends a handover request message to the core network.

Example 2

Fig. 8 is a flowchart of a processing method of local access connection in a handover process according to embodiment 2, and this embodiment takes a handover process of a 3G network as an example to describe the processing method of local access connection, which is specifically as follows:

step 801, when a source home base station finds that a current base station can not continue to serve a user according to a measurement report reported by the user, a target base station is selected to initiate handover. If the selected target base station is the home base station, the handover request message carries the CSG identifier information of the target base station in addition to the identifier/address of the target base station.

Step 802, after receiving the handover request message, the local gateway acquires the target base station information therein, determines whether the user moves out of the local femtocell network according to the identifier of the target base station, and executes the local access mobility determination. Specifically, since one L-GW serves only one local hnb network, if the target base station is still connected to the L-GW, the L-GW may determine that the user is still located in the local hnb network after handover, and the local access mobility may be supported, otherwise, it is determined that the local access mobility cannot be supported. In this embodiment, the L-GW may also optionally perform local access control determination, and unlike the embodiment, the determination of local access control needs to interact with a core network element.

and if the local gateway judges that the user can support the local access mobility under the target base station, starting an interactive process of the local access control judgment.

Scene two: the local gateway only judges the local access mobility;

the determination in this scenario is as described in embodiment one.

The present embodiment takes a scenario one (determination of simultaneous mobility and access control by the L-GW) as an example for explanation.

Step 803, the L-GW performs the information of local access control decision and decision result interactively with the SGSN. In implementation, a pair of interactive messages may be newly defined on the Iu interface or existing handover interactive messages (such as handover request, handover response/rejection, etc.) may be extended, the L-GW sends the CSG identifier information of the target base station to the SGSN, the SGSN replies the result of whether the user can still support the activated local access connection in the target base station to the L-GW after determining according to the local access subscription information, or the L-GW obtains the local access capability information of the user from the SGSN through the interactive messages, and the L-GW determines the local access control according to the method described in step 703.

And step 804, if the L-GW determines that the user can support both the local access mobility and the activated local access under the target base station, executing a normal switching process.

In step 805, if the L-GW determines that the user can support local access mobility under the target base station but the local access control is not allowed, a local access connection release procedure is performed.

The L-GW has two specific ways to handle the local access PDN connection release, where the first way refers to step 806 to step 811, and the second way refers to steps 812 to 817. See embodiment one for a specific implementation.

The inventive concepts of the first and second embodiments may also be applied to an LTE network, and the difference is that interface messages used for information transfer are different, and the same shall be protected by the present invention. In addition, the HeNB GW can be selectively deployed in the LTE network, and the use of the method and the device can not be influenced.

Example 3

Fig. 9 is a flowchart of a method for processing local access connection in a handover procedure according to embodiment 3, and this embodiment takes a handover procedure of a 3G network as an example to describe a method for processing local access connection, and a difference between this embodiment and the first embodiment is that determination of local access mobility and/or local access control is performed by a home base station gateway. The release of the local access connection is finished by the home base station gateway indicating the core network mobility management unit SGSN. The home base station gateway needs to handle the handover suspension similarly to the local gateway in the first embodiment. The specific process is as follows:

in step 901, when the user enters the connection state, the SGSN issues the local access capability information of the user to the wireless side network element through an Iu interface message (RAB assignment message, downlink transmission message, or handover request message), and since the femtocell gateway is deployed on the Iu interface, the femtocell gateway can acquire this information. The above operation is an optional way for the femtocell gateway to know the local access capability information of the user. In addition, the home base station gateway can also configure the user local access capability information locally. The user local access capability information includes: the information that can mark the support range of the local access service of the user, such as the identification information of the closed user group bound by the local access service access point name of the user, the identification/address set information of the base station supported by the local access service of the user, and the like. The user local access service may be a currently activated service or all local access services subscribed by the user.

Step 902, the source femtocell selects the target base station to initiate handover if the source femtocell finds that the current base station can not continue to serve the user according to the measurement report reported by the user. If the selected target base station is the home base station, the handover request message carries the CSG identifier information of the target base station in addition to the identifier/address of the target base station. And forwarding the switching request message to the home base station gateway through the local gateway.

Step 903, since the registration messages of the hnb are all forwarded to the hnb gateway through the L-GW for registration, the hnb gateway can know the configuration relationship between the L-GW and the subordinate hnbs. And after receiving the switching request message, the femtocell gateway acquires the target base station identifier, judges whether the user moves out of the local femtocell network according to the target base station identifier in the message, and executes local access mobility judgment, namely whether the user still stays in the same L-GW service area after moving. Specifically, since one L-GW serves only one local hnb network, if the target base station is still connected to the L-GW, the L-GW may determine that the user is still located in the local hnb network after handover, and the local access mobility may be supported, otherwise, it is determined that the local access mobility cannot be supported.

If the femtocell gateway learns the user local access capability information in step 901, the femtocell gateway may perform a determination of local access control, otherwise, the femtocell gateway cannot perform the determination. The local access control judgment specifically refers to judging whether the user supports the activated local access service under the target base station. The above determination needs the home base station gateway to obtain the information according to the comparison between the target base station identifier/address or the CSG identifier and the obtained local access capability information of the user. If the target base station identity/address or the CSG identity is included in the user local access capability information, the local access control is passed, otherwise it is not. The local access control decision is an alternative in the present invention, which may trigger a decision by the home base station gateway on the maintenance or release of the local access connection.

Scene one: the home base station gateway can simultaneously judge the local access mobility and the local access control;

if the home base station gateway judges that the user can not support the local access mobility under the target base station, the home base station gateway stops the switching process and informs a core network mobility management unit SGSN to release the local access connection;

if the home base station gateway judges that the user can not support local access under the target base station, the home base station gateway stops the switching process and informs a core network mobility management unit SGSN to release local access connection.

If the home base station gateway judges that the user can support the local access mobility and the local access under the target base station, the home base station gateway keeps the local access connection and executes the normal switching process.

Scene two: the home base station gateway only judges the local access mobility;

and if the home base station gateway judges that the user can support the local access mobility under the target base station, the home base station gateway keeps the local access connection and continues the switching process. The home base station gateway may notify the core network mobility management unit of the local access mobility determination result.

In this embodiment, the home base station gateway only performs the mobility determination, and since the processing manner after the determination may cover the scenario one, the repeated description of the scenario one processing is not performed.

Therefore, in this embodiment, if the femtocell gateway determines that the local access mobility is allowed, the local access connection is maintained, and the subsequent handover procedure is continued. And instructing the SGSN to execute local access control in the switching message, wherein the specific operation is shown in steps 904-906. If the femtocell gateway judges that the local access mobility is not allowed, the switching process is stopped, and the SGSN is instructed to release the local access connection, and the specific operation is shown in steps 907-917.

Step 904, the home base station gateway carries the local access mobility decision result in the handover request message, and the message is sent to the SGSN. The local access mobility judgment result is used for informing the core network mobility management unit that the user does not move out of the local femtocell network and indicating the core network mobility management unit to start the local access control judgment. The local access mobility decision result may be represented in implementation by displayed indication information or presence or absence of a local access parameter (e.g., local access bearer information).

Step 905, after receiving the local access mobility determination result, the core network mobility management unit SGSN further performs local access control determination by combining target base station information (such as an identifier, an address, a CSG identifier, and other information) in the handover request and the local access subscription information, and the core network mobility management unit SGSN performs a maintenance or release operation on the local access connection according to the determination result.

In step 906, if the SGSN initiates the release of the local access connection, the SGSN does not include the local access radio bearer information in the handover request sent to the target base station. Otherwise, the normal switching is executed.

Step 907, combining the decision principle in step 903, if the hnb gateway decides that the local access mobility is not allowed and/or the hnb gateway decides that the local access control fails (executed in case of scenario one), the current handover procedure is interrupted, and the SGSN is instructed to initiate the local access PDN connection release. The local gateway suspends the handover and instructs the SGSN to perform the local access PDN connection release processing procedure in two specific ways, where the first way refers to step 908 to step 912, and the second way refers to step 913 to step 917.

Step 908, the hnb gateway instructs the SGSN to release the local access connection, and the specific implementation may be to carry an instruction in an uplink Iu message (an uplink transmission message, a bearer release message, a handover request message, etc.) or to separately define an Iu interface message for characterization.

In step 909, the SGSN initiates the local access PDN connection release procedure.

Step 910, the femtocell gateway stops the handover procedure when instructing the SGSN to release the local access connection, instructs the source femtocell to stop the handover through the Iu interface message, and restarts the handover procedure when receiving the local access radio bearer release message. The specific implementation can adopt the existing message carrying reason values such as the switching rejection message and the downlink transmission message to represent or define a new Iu/Iuh interface message to represent.

It should be noted that the message triggers of step 908 and step 910 are not defined in sequence.

Step 911, the SGSN releases the radio bearer corresponding to the local access connection through the RAB release message.

In step 912, the source hnb deletes the corresponding rb resource and re-initiates the handover procedure after receiving the message carrying the release of the locally accessed rb.

Step 913, the hnb gateway aborts the handover procedure itself when instructing the SGSN to release the local access connection. The SGSN is instructed to release the local access connection in step 908.

Step 914, synchronize step 909.

Step 915, synchronize step 911.

Step 916, after receiving the message carrying the release of the local access radio bearer, the femtocell gateway modifies the bearer information in the source target container and deletes the local access radio bearer.

Step 917, the femtocell gateway continues the suspended handover process and sends a handover request message to the core network.

Example 4

Fig. 10 is a flowchart of a method for processing local access connection in a handover procedure according to embodiment 4, and a method for performing local access connection processing by taking a handover procedure of a 3G network as an example is described. In this embodiment, only the portions different from the third embodiment will be described. The process is as follows:

in step 1009, the femtocell gateway performs local access mobility and/or local access control decision using the same principles as described in step 907. And interrupting the current switching process under the condition that the current switching process is determined not to be allowed, and indicating the L-GW to initiate the release of the local access PDN connection.

Step 1008 and step 1013, the home base station gateway instructs the L-GW to release the local access connection, and the specific implementation may be to carry an instruction in a downlink Iu message (a downlink transmission message, a handover response/rejection, etc.) or to separately define an Iu/Iuh interface message for representation.

Example 5

Fig. 11 is a flowchart of a method for processing local access connection in a handover procedure according to embodiment 5, and this embodiment describes a method for performing local access connection processing by taking a handover procedure of a 3G network as an example, and a difference between this embodiment and the third embodiment is that a processing manner of a home base station gateway for local access mobility and local access control determination is different. The process is as follows:

in step 1102, since the registration messages of the hnb are all forwarded to the hnb gateway through the L-GW for registration, the hnb gateway can know the configuration relationship between the L-GW and the subordinate hnbs. And after receiving the switching request message, the femtocell gateway acquires the target base station identifier, judges whether the user moves out of the local femtocell network according to the target base station identifier in the message, and executes local access mobility judgment, namely whether the user still stays in the same L-GW service area after moving. Specifically, since one L-GW serves only one local hnb network, if the target base station is still connected to the L-GW, the L-GW may determine that the user is still located in the local hnb network after handover, and the local access mobility may be supported, otherwise, it is determined that the local access mobility cannot be supported. In this embodiment, the femtocell gateway may also optionally perform local access control judgment, and the judgment method is similar to that in the second embodiment, and needs to interact with a core network element.

if the home base station gateway judges that the user can not support the local access mobility under the target base station, the home base station gateway stops switching and instructs the SGSN to release the local access connection;

and if the home base station gateway judges that the user can support the local access mobility under the target base station, starting an interactive process of the local access control judgment.

Scene two: the home base station gateway only judges the local access mobility;

the determination in this scenario is the same as in the third embodiment. And will not be described in detail herein.

The present embodiment takes a scenario one (determination that a home base station gateway performs mobility and access control at the same time) as an example for explanation.

Step 1103, the femto gateway and the SGSN perform local access control determination information and determination result interactively. In implementation, a pair of interactive messages may be newly defined on the Iu interface or existing handover interactive messages (such as handover request, handover response/rejection, etc.) may be expanded, the femtocell gateway sends the CSG identifier information of the target base station to the SGSN, the SGSN replies the result of whether the user can still support the activated local access connection at the target base station to the femtocell gateway after determining according to the local access subscription information, or the femtocell gateway obtains the local access capability information of the user from the SGSN through the interactive messages, and the femtocell gateway determines the local access control according to the method described in step 1103.

And step 1104, if the femtocell gateway determines that the user can support both local access mobility and activated local access under the target base station, then executing a normal handover process.

In step 1105, if the femto gateway determines that the user can support local access mobility but the local access control is not allowed under the target base station, the handover procedure is terminated and the SGSN is instructed to execute the local access connection release procedure.

The specific femtocell gateway aborts the handover procedure, and instructs the SGSN to perform the local access connection release procedure (steps 1106 to 1115) is the same as steps 1108 to 1117 in the third embodiment, which is not described herein again.

Example 6

Fig. 12 is a flowchart of a method for processing local access connection in a handover procedure according to embodiment 6, and this embodiment takes a handover procedure of a 3G network as an example to describe a method for performing local access connection processing, and a difference between this embodiment and the fifth embodiment is that a local access connection release is instructed by a home base station gateway to be completed. In this embodiment, only the portions different from the fifth embodiment are described, specifically as follows:

step 1205, the femtocell gateway performs local access mobility and/or local access control decision by using the principle similar to that described in 1105. And in the case of judging that the connection is not allowed, the current switching process of the terminal indicates the L-GW to initiate the release of the local access PDN connection.

In step 1206 and step 1211, the home base station gateway indicates the L-GW to release the local access connection, and the specific implementation may be to carry an indication in a downlink Iu message (a downlink transmission message, a handover response/rejection, etc.) or to separately define an Iu/Iuh interface message for characterization.

In the present invention, the definitions of local access mobility (whether the user moves out of the local femtocell network) and local access control (whether the user supports the activated local access service in the target area) are distinguished, and the determination of any other local access service continuity is included in the present invention, and is not limited by specific terms.

From the above description, it can be seen that, in the scheme provided in the embodiment of the present invention, after the existing network device, the local gateway, and the femtocell gateway are technically enhanced, the architecture can implement the local access function and can support the requirement of mobility in the local femtocell network, and meanwhile, the upgrade and modification of the existing core network are less affected, and the implementation is easy.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, or they may be separately fabricated into various integrated circuit modules, or multiple modules or steps thereof may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for processing local access connection in switching process is characterized by comprising the following steps:

a predetermined network element monitors a wireless access interface signaling message;

the predetermined network element judges the local access mobility according to the target base station information acquired through monitoring, and/or judges the local access control according to the target base station information acquired through monitoring and the user local access capability information, wherein the predetermined network element is a local gateway or a home base station gateway;

and the predetermined network element processes the local access connection according to the judgment result.

2. The method according to claim 1, wherein, in a case where the predetermined network element currently acquires the target base station information and the user local access capability information by monitoring, the processing, by the predetermined network element, of the local access connection according to a determination result includes:

if the predetermined network element judges that the user cannot support the local access mobility and/or cannot support the local access under the target base station, the predetermined network element releases the local access connection;

if the predetermined network element determines that the user supports the local access mobility and supports the local access under the target base station, the predetermined network element maintains the local access connection.

3. The method according to claim 1, wherein, in a case where the predetermined network element currently acquires the target base station information by monitoring and does not acquire the user local access capability information, the processing, by the predetermined network element, of the local access connection according to a determination result includes:

if the predetermined network element judges that the user cannot support the local access mobility under the target base station, the predetermined network element releases the local access connection;

and if the predetermined network element judges that the user supports the local access mobility under the target base station, the predetermined network element keeps the local access connection.

4. The method according to claim 3, wherein when the predetermined network element currently acquires the target base station information by monitoring and does not acquire the user local access capability information, if the determination result is that the user supports the local access mobility under the target base station, after the predetermined network element determines the local access mobility according to the target base station information, the method further includes:

the predetermined network element informs a core network mobility management unit of the judgment result of the local access mobility;

the core network mobility management unit executes the judgment of the local access control according to the target base station information and the local access subscription information;

and the core network mobility management unit keeps the local access connection and continues to execute a switching process under the condition that the judgment result is that the user supports the local access under the target base station, and releases the local access connection under the condition that the judgment result is that the user does not support the local access under the target base station.

5. The method according to claim 4, wherein the determination result of the local access mobility is indicated by displayed indication information or by presence or absence of a local access parameter.

6. The method according to claim 3, wherein when the predetermined network element currently acquires the target base station information by monitoring and does not acquire the user local access capability information, if the determination result is that the user supports the local access mobility under the target base station, after the predetermined network element determines the local access mobility according to the target base station information, the method further includes:

the preset network element sends the target base station information to a core network mobility management unit; the core network mobility management unit executes the judgment of the local access control according to the target base station information and the local access subscription information, and returns a judgment result to the predetermined network element; the predetermined network element keeps the local access connection and continues to execute a switching process under the condition that the judgment result is that the user supports the local access under the target base station, and releases the local access connection under the condition that the judgment result is that the user does not support the local access under the target base station; or,

the predetermined network element acquires the user local access capability information from the core network mobility management unit, judges the local access control according to the target base station information and the acquired user local access capability information, keeps the local access connection and continues to execute the switching process under the condition that the judgment result is that the user supports the local access under the target base station, and releases the local access connection under the condition that the judgment result is that the user does not support the local access under the target base station.

7. The method according to any of claims 2-6, wherein in case that the predetermined network element is the local gateway, the predetermined network element releasing the local access connection comprises:

the local gateway initiates local access connection release, deletes local access bearer information in a Source-to-Target Container when receiving a local access bearer deletion message returned by the core network mobility management unit, initiates a switching request to the core network mobility management unit, and continues to execute a switching process; or,

the local gateway instructs a source home base station to terminate the switching process and informs the source home base station to restart the switching process when receiving a bearer release message carrying local access bearer release information returned by the core network mobility management unit, and the local gateway initiates local access connection release; and the source femtocell initiates the switching process again when receiving the bearer release message which carries the local access bearer release information and is returned by the core network mobility management unit.

8. The method according to any of claims 2-6, wherein in case that the predetermined network element is the home base station gateway, the predetermined network element releasing the local access connection comprises:

the femtocell gateway indicates the local gateway or the core network mobility management unit to initiate local access connection release, deletes local access bearer information in a Source to Target Container when receiving a local access bearer deletion message returned by the core network mobility management unit, initiates a switching request to the core network mobility management unit, and continues to execute a switching process; or,

the home base station gateway indicates the local gateway or the core network mobility management unit to initiate local access connection release, and indicates a source home base station to terminate a switching process and inform the source home base station to restart the switching process when receiving a bearer release message which is returned by the core network mobility management unit and carries local access bearer release information; and the source femtocell initiates the switching process again when receiving the bearer release message which carries the local access bearer release information and is returned by the core network mobility management unit.

9. The method according to any of claims 1-6, wherein the determining of the local access mobility by the predetermined network element according to the target base station information comprises:

and the predetermined network element judges whether the target base station is connected to a local gateway connected with a source home base station or not according to the target base station information, if so, the user is judged to support the local access mobility under the target base station, and if not, the user is judged not to support the local access mobility under the target base station.

10. The method according to any of claims 1-6, wherein determining local access control based on the target base station information and user local access capability information comprises:

and judging whether the target base station information is contained in the user local access capability information, if so, judging that the user supports the local access under the target base station, otherwise, judging that the user cannot support the local access under the target base station.

11. The method according to any of claims 1-6, wherein the target base station information comprises at least one of: target base station identification/address, target base station closed user group identification.

12. The method according to any of claims 1-6, wherein the user local access capability information comprises at least one of: the closed user group identification information bound by the user local access service access point name and the base station identification/address set supported by the user local access service.

13. The method according to any of claims 1-6, wherein the wireless access interface comprises at least one of: iu interface, Iuh interface, S1 interface.

14. An apparatus for handling local access connection during handover, the apparatus being included in a predetermined network element, the apparatus comprising:

the acquisition module is used for monitoring a wireless access interface signaling message to acquire target base station information and/or local access capacity information;

the judging module is used for judging the local access mobility according to the target base station information and/or judging the local access control according to the target base station information and the user local access capacity information;

the processing module is used for processing the local access connection according to the judgment result;

the predetermined network element is a local gateway or a femtocell gateway.