CN101932066A

Movatterモバイル変換

Info

Publication number: CN101932066A
Application number: CN2009100875479A
Authority: CN
Inventors: 吴问付; 张艳平
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2009-06-23
Filing date: 2009-06-23
Publication date: 2010-12-29

Abstract

本发明实施例涉及一种信息获取方法及核心管理网元，该方法包括：接收携带有封闭用户组CSG标识的接入请求消息；根据所述CSG标识确定请求接入的目标小区是否为CSG小区，若是，则获取CSG签约信息。本发明实施例根据接入请求消息中携带的CSG标识确定请求接入的目标小区是否为CSG小区，若是，则获取CSG签约信息。使得核心管理网元在目标小区为CSG小区时，到CSG管理服务器中获取CSG签约信息，降低了核心管理网元与CSG管理服务器之间的信令负荷，提高了核心管理网元和CSG管理服务器的信息处理效率。

The embodiment of the present invention relates to an information acquisition method and a core management network element. The method includes: receiving an access request message carrying a closed subscriber group CSG identifier; determining whether a target cell requesting access is a CSG cell according to the CSG identifier , if yes, obtain CSG subscription information. In the embodiment of the present invention, according to the CSG identifier carried in the access request message, it is determined whether the target cell requesting access is a CSG cell, and if so, obtains CSG subscription information. When the target cell is a CSG cell, the core management network element obtains the CSG subscription information from the CSG management server, which reduces the signaling load between the core management network element and the CSG management server, and improves the efficiency of the core management network element and the CSG management server. information processing efficiency.

Description

Translated fromChinese

信息获取方法及核心管理网元Information acquisition method and core management network element

技术领域technical field

本发明涉及通信领域，特别涉及信息获取方法及核心管理网元。The invention relates to the communication field, in particular to an information acquisition method and a core management network element.

背景技术Background technique

目前第3代合作伙伴计划(3rd Generation Partnership Project，以下简称：3GPP)和非第3代合作伙伴计划(non-3rd Generation Partnership Project，以下简称：non-3GPP)标准组织正在研究一种新的接入模式：家庭接入(Home)，用户设备(User Equipment，以下简称：UE)通过家庭无线接入点，使用许可的频谱如：全球地面无线接入网(UMTS Terrestrial Radio Access Network，以下简称：UTRAN)、演进型(Evolved-UTRAN，以下简称：E-UTRAN)、码分多址接入(Code Division Multiple Access，以下简称：CDMA)、微波存取全球互通(Worldwide Interoperability for Microwave Access，以下简称：Wimax)、无线局域网(Wireless Local Area Network，以下简称：WLAN)、高速分组数据(High Rate Packet Data，以下简称：HRPD)等无线网络使用的频谱，通过通用的IP接入网络如：数字用户线(Digital Subscriber Line，以下简称：DSL)、电缆宽带(Cable broadband)等连接到运营商的移动网络。家庭接入的系统由家庭接入网元(Femtocells)、家庭接入网元的网关网元、移动性管理实体(Mobility Management Entity，以下简称：MME，)、服务通用分组无线业务支持节点(Serving GPRS Supporting Node，以下简称：SGSN)、非3GPP网关实体(non-3GPP GW)、归属用户服务器(Home Subscriber Server，以下简称：HSS)、认证、授权与计费服务器(Authentication，Authorization and Accounting Server，以下简称：AAA Server)、封闭用户组用户服务器(Closed Subscriber Group Subscriber Server，以下简称：CSS)组成。其中，家庭接入网元使用许可的频谱，通过通用的IP接入网络将UE连接到运营商的移动网络，其包括：运行在UTRAN频谱的家庭基站(Home NodeB，以下简称：HNB)，运行在E-UTRAN频谱的家庭演进基站(Home evolved NodeB，以下简称：HeNB，)、运行在CDMA、Wimax、WLAN或者HRPD等频谱下的家庭非3GPP接入网络(Home non-3GPPAccess Network，以下简称：HN3GPP AN)。家庭接入网元的网关网元，执行家庭接入网元管理和接入控制、汇集家庭接入网元，路由和转发家庭接入网元和移动网络中的网元之间的信令的数据等功能。MME负责E-UTRAN网络中的控制面移动性管理，包括用户上下文和移动状态管理，分配用户临时身份标识等。SGSN用于实现GPRS/UMTS网络中路由转发、移动性管理、会话管理以及用户信息存储等功能。non-3GPP GW实现non-3GPP网络中的移动性管理、会话管理等功能例如：在WLAN网络中，non-3GPP GW为演进分组数据网关(Evolved Packet Data Gateway，以下简称：EPDG)；在Wimax网络中，non-3GPP GW为接入业务网络网关(Access Service Network Gateway，以下简称：ASN GW)；在CDMA网络中，non-3GPP GW为接入网关(Access Gateway，以下简称：AGW)；在HRPD网络中，non-3GPP GW为高速分组数据服务网关(HRPD Serving Gateway，以下简称：HSGW)。HSS用于存储用户签约信息。AAA Server用于对UE执行接入认证、授权和计费功能。CSS负责用户的CSG管理功能，如包含用户的允许CSG列表(Allowed CSG List)。CSS可以是一个独立的网元，也可以集成到HSS中。以下对HSS、CSS或者CLS称之为CSG管理服务器。At present, the 3rd Generation Partnership Project (3rd Generation Partnership Project, hereinafter referred to as: 3GPP) and the non-3rd Generation Partnership Project (hereinafter referred to as: non-3GPP) standard organizations are studying a new interface Access mode: home access (Home), user equipment (User Equipment, hereinafter referred to as: UE) through the home wireless access point, using licensed spectrum such as: UMTS Terrestrial Radio Access Network (UMTS Terrestrial Radio Access Network, hereinafter referred to as: UTRAN), Evolved-UTRAN (hereinafter referred to as: E-UTRAN), Code Division Multiple Access (Code Division Multiple Access, hereinafter referred to as: CDMA), Microwave Access Global Interoperability (Worldwide Interoperability for Microwave Access, hereinafter referred to as : Wimax), wireless local area network (Wireless Local Area Network, hereinafter referred to as: WLAN), high-speed packet data (High Rate Packet Data, hereinafter referred to as: HRPD) and other wireless networks use the spectrum, through the general IP access network such as: digital subscribers DSL (Digital Subscriber Line, hereinafter referred to as: DSL), cable broadband (Cable broadband), etc. are connected to the mobile network of the operator. The home access system consists of home access network elements (Femtocells), gateway network elements of home access network elements, mobility management entities (Mobility Management Entity, hereinafter referred to as: MME), serving general packet radio service support nodes (Serving GPRS Supporting Node, hereinafter referred to as: SGSN), non-3GPP gateway entity (non-3GPP GW), home subscriber server (Home Subscriber Server, hereinafter referred to as: HSS), authentication, authorization and accounting server (Authentication, Authorization and Accounting Server, hereinafter referred to as: AAA Server), closed subscriber group user server (Closed Subscriber Group Subscriber Server, hereinafter referred to as: CSS). Among them, the home access network element uses the licensed spectrum to connect the UE to the operator's mobile network through a general IP access network, which includes: Home NodeB (Home NodeB, hereinafter referred to as: HNB) running on the UTRAN spectrum, running Home evolved NodeB (HeNB for short) in E-UTRAN spectrum, Home non-3GPP Access Network (Home non-3GPP Access Network, hereinafter referred to as: HN3GPP AN). The gateway network element of the home access network element, which performs home access network element management and access control, gathers home access network elements, and routes and forwards signaling between home access network elements and network elements in the mobile network data functions. The MME is responsible for the control plane mobility management in the E-UTRAN network, including user context and mobility status management, assigning user temporary identities, etc. The SGSN is used to implement functions such as routing and forwarding, mobility management, session management, and user information storage in the GPRS/UMTS network. The non-3GPP GW implements functions such as mobility management and session management in the non-3GPP network. For example: in the WLAN network, the non-3GPP GW is the Evolved Packet Data Gateway (EPDG for short); in the Wimax network Among them, non-3GPP GW is Access Service Network Gateway (Access Service Network Gateway, hereinafter referred to as: ASN GW); in CDMA network, non-3GPP GW is Access Gateway (Access Gateway, hereinafter referred to as: AGW); in HRPD In the network, the non-3GPP GW is a high-speed packet data serving gateway (HRPD Serving Gateway, hereinafter referred to as: HSGW). The HSS is used to store user subscription information. AAA Server is used to perform access authentication, authorization and accounting functions for UE. The CSS is responsible for the user's CSG management functions, such as including the user's allowed CSG list (Allowed CSG List). CSS can be an independent network element, or it can be integrated into HSS. Hereinafter, the HSS, CSS or CLS is referred to as the CSG management server.

为了限制UE接入特定的家庭无线接入点或者特定的无线接入点，封闭用户组(Closed Subscriber Group，以下简称：CSG)机制被引入。CSG标识一些UE，这些UE允许接入运营商的一个或者几个小区，但是这些小区对其它的UE是限制接入的。一个CSG区域(area)包含一个小区或者多个小区，这些小区限定对一组UE接入。一个CSG区域以CSG标识(ID)来标识。CSG管理服务器中有UE的CSG签约信息，CSG签约信息中有允许CSG列表(Allowed CSG list)，Allowed CSG List中包含一个或者多个CSG ID(也称之为CSG ID列表)，UE仅仅在允许CSG列表中CSG ID相应的CSG小区中允许接入。In order to restrict the UE from accessing a specific home wireless access point or a specific wireless access point, a Closed Subscriber Group (Closed Subscriber Group, hereinafter referred to as: CSG) mechanism is introduced. The CSG identifies some UEs that are allowed to access one or several cells of the operator, but access to these cells is restricted for other UEs. A CSG area (area) includes one cell or multiple cells, and these cells are limited to access to a group of UEs. A CSG area is identified by a CSG identifier (ID). The CSG management server has the UE's CSG subscription information, and the CSG subscription information has an allowed CSG list (Allowed CSG list). The Allowed CSG List contains one or more CSG IDs (also called the CSG ID list), and the UE only allows Access is allowed in the CSG cell corresponding to the CSG ID in the CSG list.

当UE通过家庭接入网元或者接入网元接入运营商的无线网络(如UTRAN、E-UTRAN、wimax或者HRPD等网络)时，UE首先通过家庭接入网元或者接入网元接入核心管理网元，然后由核心管理网元从CSG管理服务器中获取与该UE对应的CSG签约信息。对于CSG小区，核心管理网元执行接入控制处理，UE只能接入该CSG签约信息中包含的CSG ID对应的CSG小区，若CSG签约信息中没有某个CSG ID，UE就不能接入该CSG小区所属的家庭接入网元或者接入网元；对于非CSG小区(如宏小区，Macro cell)，核心管理网元则不需要执行接入控制处理。凭借现有的方法，能够有效地控制未经过授权的UE通过CSG小区接入运营商的无线网络。When the UE accesses the operator's wireless network (such as UTRAN, E-UTRAN, wimax or HRPD) through the home access network element or the access network element, the UE first connects to the operator's wireless network through the home access network element or the access network element. Enter the core management network element, and then the core management network element obtains the CSG subscription information corresponding to the UE from the CSG management server. For a CSG cell, the core management network element performs access control processing, and the UE can only access the CSG cell corresponding to the CSG ID contained in the CSG subscription information. If there is no CSG ID in the CSG subscription information, the UE cannot access the CSG cell. The home access network element or access network element to which the CSG cell belongs; for a non-CSG cell (such as a macro cell, Macro cell), the core management network element does not need to perform access control processing. By virtue of the existing method, it is possible to effectively control the access of the unauthorized UE to the operator's wireless network through the CSG cell.

在实现本发明的过程中，发明人发现现有技术至少存在以下缺陷：现有UE接入无线网络时，核心管理网元无法确定何种情况需要获取UE对应的CSG签约信息，无论UE从非CSG小区接入无线网络，还是从CSG小区接入无线网络，核心管理网元都要从CSG管理服务器中获取该UE对应的CSG签约信息，大大增加了核心管理网元与CSG管理服务器之间的信令负荷，影响了核心管理网元和CSG管理服务器的处理负荷。In the process of realizing the present invention, the inventors found that the existing technology has at least the following defects: when the existing UE accesses the wireless network, the core management network element cannot determine under what circumstances it is necessary to obtain the UE’s corresponding CSG subscription information, Whether the CSG cell accesses the wireless network or accesses the wireless network from the CSG cell, the core management network element must obtain the CSG subscription information corresponding to the UE from the CSG management server, which greatly increases the distance between the core management network element and the CSG management server. The signaling load affects the processing load of the core management network element and the CSG management server.

发明内容Contents of the invention

本发明实施例提供一种信息获取方法及核心管理网元，以确定在何种情况下获取UE对应的CSG签约信息。Embodiments of the present invention provide an information acquisition method and a core management network element to determine under what circumstances to acquire CSG subscription information corresponding to a UE.

本发明实施例提供了一种信息获取方法，包括：An embodiment of the present invention provides an information acquisition method, including:

接收携带有封闭用户组CSG标识的接入请求消息；receiving an access request message carrying a closed subscriber group CSG identifier;

根据所述CSG标识确定请求接入的目标小区是否为CSG小区，若是，则获取CSG签约信息。Determine whether the target cell requesting access is a CSG cell according to the CSG identifier, and if so, acquire CSG subscription information.

接收携带有封闭用户组CSG支持指示信息的接入请求消息；receiving an access request message carrying closed subscriber group CSG support indication information;

根据所述CSG支持指示信息确定请求接入目标小区的用户设备UE是否支持CSG功能，若是，则获取CSG签约信息；或者Determine whether the user equipment UE requesting to access the target cell supports the CSG function according to the CSG support indication information, and if so, obtain CSG subscription information; or

接收携带有CSG使用指示信息的接入请求消息；receiving an access request message carrying CSG usage indication information;

根据所述CSG使用指示信息确定所述请求接入目标小区的UE使用CSG功能，若是，则获取CSG签约信息。Determine according to the CSG use indication information that the UE requesting to access the target cell uses the CSG function, and if so, obtain CSG subscription information.

本发明实施例提供了一种核心管理网元，包括：An embodiment of the present invention provides a core management network element, including:

接收模块，用于接收携带有封闭用户组CSG标识的接入请求消息；A receiving module, configured to receive an access request message carrying a closed subscriber group CSG identifier;

判断模块，用于根据所述CSG标识确定请求接入的目标小区是否为CSG小区；A judging module, configured to determine whether the target cell requesting access is a CSG cell according to the CSG identifier;

获取模块，用于当所述目标小区为CSG小区时，获取CSG签约信息。An acquiring module, configured to acquire CSG subscription information when the target cell is a CSG cell.

接收模块，用于接收携带有封闭用户组CSG支持指示信息的接入请求消息；A receiving module, configured to receive an access request message carrying closed subscriber group CSG support indication information;

判断模块，用于根据所述CSG支持指示信息确定请求接入目标小区的用户设备UE是否支持CSG功能；A judging module, configured to determine, according to the CSG support indication information, whether the user equipment UE requesting to access the target cell supports the CSG function;

获取模块，用于当所述UE支持CSG功能时，获取CSG签约信息；或者An acquiring module, configured to acquire CSG subscription information when the UE supports the CSG function; or

接收模块，用于接收携带有封闭用户组CSG使用指示信息的接入请求消息；A receiving module, configured to receive an access request message carrying closed subscriber group CSG usage indication information;

判断模块，用于根据所述CSG使用指示信息确定请求接入目标小区的用户设备UE是否使用CSG功能；A judging module, configured to determine whether the user equipment UE requesting to access the target cell uses the CSG function according to the CSG usage indication information;

获取模块，用于当所述UE使用CSG功能时，获取CSG签约信息。An acquiring module, configured to acquire CSG subscription information when the UE uses the CSG function.

由上述技术方案可知，本发明实施例根据接入请求消息中携带的CSG标识确定请求接入的目标小区是否为CSG小区，若是，则获取CSG签约信息。使得核心管理网元在目标小区为CSG小区时，到CSG管理服务器中获取CSG签约信息，降低了核心管理网元与CSG管理服务器之间的信令负荷，提高了核心管理网元和CSG管理服务器的信息处理效率。It can be seen from the above technical solution that the embodiment of the present invention determines whether the target cell for access request is a CSG cell according to the CSG identifier carried in the access request message, and if so, acquires the CSG subscription information. When the target cell is a CSG cell, the core management network element obtains the CSG subscription information from the CSG management server, which reduces the signaling load between the core management network element and the CSG management server, and improves the efficiency of the core management network element and the CSG management server. information processing efficiency.

附图说明Description of drawings

图1为本发明实施例提供的信息获取方法的流程示意图；FIG. 1 is a schematic flowchart of an information acquisition method provided by an embodiment of the present invention;

图2为本发明实施例提供的信息获取方法的信令图；FIG. 2 is a signaling diagram of an information acquisition method provided by an embodiment of the present invention;

图3为本发明实施例提供的信息获取方法的信令图；FIG. 3 is a signaling diagram of an information acquisition method provided by an embodiment of the present invention;

图4为本发明实施例提供的信息获取方法的信令图；FIG. 4 is a signaling diagram of an information acquisition method provided by an embodiment of the present invention;

图5为本发明实施例提供的信息获取方法的流程示意图；FIG. 5 is a schematic flowchart of an information acquisition method provided by an embodiment of the present invention;

图6为本发明实施例提供的信息获取方法的流程示意图；FIG. 6 is a schematic flowchart of an information acquisition method provided by an embodiment of the present invention;

图7为本发明实施例提供的核心管理网元的结构示意图；FIG. 7 is a schematic structural diagram of a core management network element provided by an embodiment of the present invention;

图8为本发明实施例提供的核心管理网元的结构示意图；FIG. 8 is a schematic structural diagram of a core management network element provided by an embodiment of the present invention;

图9为本发明实施例提供的核心管理网元的结构示意图。FIG. 9 is a schematic structural diagram of a core management network element provided by an embodiment of the present invention.

具体实施方式Detailed ways

下面结合附图对本发明的具体实施例作进一步详细的说明。Specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

图1为本发明实施例提供的信息获取方法的流程示意图，如图1所示，本发明实施例可以包括以下步骤：Fig. 1 is a schematic flowchart of an information acquisition method provided by an embodiment of the present invention. As shown in Fig. 1, the embodiment of the present invention may include the following steps:

步骤101、接收携带有CSG标识的接入请求消息；Step 101, receiving an access request message carrying a CSG identifier;

步骤102、根据所述CSG标识确定请求接入的目标小区是否为CSG小区，若是，则获取CSG签约信息。Step 102: Determine whether the target cell for access request is a CSG cell according to the CSG identifier, and if so, obtain CSG subscription information.

本实施例提供的信息获取方法可以应用到支持家庭接入模式的无线网络中，例如：UTRAN、E-UTRAN、CDMA、Wimax、WLAN或者HRPD等无线网络。本实施例中的UE可以为能够接入上述无线网络的终端设备，例如：手机、个人电脑(Person Computer，以下简称：PC)或个人数字助理(Personal Digital Assistant，以下简称：PDA)等终端设备。本实施例中的接入网元可以为上述无线网络中的家庭接入网元如：HNB、HeNB、HN3GPP AN，或者可以为支持上述无线网络，且具有CSG功能的接入网元如：运行在UTRAN频谱的接入网元、运行在E-UTRAN频谱的接入网元、运行在CDMA、Wimax、WLAN或者HRPD等频谱下的接入网元。本实施例中的核心管理网元可以为上述无线网络中的管理网元如：MME、SGSN、MSC或者non-3GPP GW等网元。本实施例中的CSG管理服务器可以为具有CSG管理功能的服务器如：CSS或者HSS等。The information acquisition method provided in this embodiment can be applied to a wireless network supporting a home access mode, such as a wireless network such as UTRAN, E-UTRAN, CDMA, Wimax, WLAN, or HRPD. The UE in this embodiment may be a terminal device capable of accessing the wireless network, such as a mobile phone, a personal computer (Person Computer, hereinafter referred to as PC) or a personal digital assistant (Personal Digital Assistant, hereinafter referred to as PDA) and other terminal devices . The access network element in this embodiment may be a home access network element in the above wireless network such as: HNB, HeNB, HN3GPP AN, or may be an access network element that supports the above wireless network and has a CSG function such as: running Access network elements operating in UTRAN spectrum, access network elements operating in E-UTRAN spectrum, access network elements operating in CDMA, Wimax, WLAN or HRPD spectrum. The core management network element in this embodiment may be a management network element in the above-mentioned wireless network, such as network elements such as MME, SGSN, MSC or non-3GPP GW. The CSG management server in this embodiment may be a server with a CSG management function such as CSS or HSS.

当UE通过接入网元所辖范围内的目标小区接入运营商的无线网络时，UE通过接入网元发送接入请求消息到核心管理网元，以请求接入该目标小区，该接入请求消息可以为附着请求(Attach Request)消息、跟踪区更新请求(TAU Request)消息、路由区更新请求(RAU Request)消息、位置区更新请求(LAU Request)消息、服务请求(Service Request)或者呼叫管理服务请求(Call Management Service Request)等消息。若该目标小区为CSG小区，则接入网元在发送该请求消息到核心管理网元的消息(如，S1接口和Iu接口中的初始化UE消息(Initial UE Message)中携带有CSG标识，也可以携带有CSG小区的接入模式如：封闭接入模式(Closed Access Mode)或者混合接入模式(Hybrid Access Mode)等。When the UE accesses the operator's wireless network through a target cell within the jurisdiction of the access network element, the UE sends an access request message to the core management network element through the access network element to request access to the target cell. The incoming request message can be an attach request (Attach Request) message, a tracking area update request (TAU Request) message, a routing area update request (RAU Request) message, a location area update request (LAU Request) message, a service request (Service Request) or Call management service request (Call Management Service Request) and other messages. If the target cell is a CSG cell, the access network element sends the request message to the core management network element (for example, the initialization UE message (Initial UE Message) in the S1 interface and the Iu interface carries the CSG identifier, and also It can carry the access mode of the CSG cell, such as: closed access mode (Closed Access Mode) or hybrid access mode (Hybrid Access Mode), etc.

当接收到该接入请求消息后，核心管理网元判断该接入请求消息中是否携带有CSG标识，若该接入请求消息中携带有CSG标识，则确定UE请求接入的目标小区为CSG小区；若该接入请求消息中未携带有CSG标识，则确定UE请求接入的目标小区为非CSG小区，此时，核心管理网元不执行获取CSG签约信息的操作，避免了UE请求接入非CSG小区时，核心管理网元从CSG管理服务器中获取CSG签约信息的情况发生，降低了核心管理网元与CSG管理服务器之间的信令负荷。After receiving the access request message, the core management network element judges whether the access request message carries a CSG identifier, and if the access request message carries a CSG identifier, it determines that the target cell that the UE requests to access is a CSG cell; if the access request message does not carry a CSG identifier, it is determined that the target cell that the UE requests to access is a non-CSG cell. When entering a non-CSG cell, the core management network element obtains the CSG subscription information from the CSG management server, which reduces the signaling load between the core management network element and the CSG management server.

当核心管理网元确定UE请求接入的目标小区为CSG小区后，核心管理网元首先查找自身的存储设备中是否保存有该UE对应的CSG签约信息，若没有查找到，则向CSG管理服务器发送请求获取CSG签约信息消息，以获取CSG管理服务器中存储的CSG签约信息。当CSG管理服务器接收到该请求获取CSG签约信息消息后，将自身存储的CSG签约信息携带在CSG签约信息获取确认消息中向核心管理网元发送。核心管理网元接收到CSG签约信息后，执行接入控制操作；若核心管理网元从自身的存储设备中查找到该UE对应的CSG签约信息后，则不需要从CSG管理服务器中获取CSG签约信息，直接执行接入控制操作，以降低核心管理网元和CSG管理服务器之间的信令负荷。When the core management network element determines that the target cell that the UE requests to access is a CSG cell, the core management network element first checks whether the CSG subscription information corresponding to the UE is stored in its own storage device, and if not found, it sends a CSG request to the CSG management server A request to acquire CSG subscription information message is sent to acquire the CSG subscription information stored in the CSG management server. After receiving the CSG subscription information request message, the CSG management server carries the CSG subscription information stored by itself in the CSG subscription information acquisition confirmation message and sends it to the core management network element. After the core management network element receives the CSG subscription information, it performs access control operations; if the core management network element finds the CSG subscription information corresponding to the UE from its own storage device, it does not need to obtain the CSG subscription information from the CSG management server. information, and directly perform access control operations to reduce the signaling load between the core management network element and the CSG management server.

本实施例中，核心管理网元执行接入控制操作时，首先判断获取到的CSG签约信息中是否包含接入请求消息中的CSG标识，若是，则允许UE接入该CSG标识对应的CSG小区，并向该UE返回接入接受消息；若否，且该CSG小区的接入模式为封闭接入模式，不允许该UE接入该CSG标识对应的CSG小区，向该UE返回接入拒绝消息。In this embodiment, when the core management network element performs access control operations, it first judges whether the obtained CSG subscription information contains the CSG identifier in the access request message, and if so, allows the UE to access the CSG cell corresponding to the CSG identifier , and return an access acceptance message to the UE; if not, and the access mode of the CSG cell is closed access mode, the UE is not allowed to access the CSG cell corresponding to the CSG identifier, and an access rejection message is returned to the UE .

通过本实施例的上述流程，已经能够避免UE请求接入非CSG小区时，核心管理网元从CSG管理服务器中获取CSG签约信息的情况发生，实现了降低了核心管理网元与CSG管理服务器之间的信令负荷的技术效果。Through the above-mentioned process of this embodiment, it has been possible to avoid the situation that the core management network element obtains the CSG subscription information from the CSG management server when the UE requests to access a non-CSG cell, thereby reducing the distance between the core management network element and the CSG management server. The technical effect of the signaling load between them.

进一步地，本实施例中UE请求接入CSG小区时，核心管理网元从CSG管理服务器中获取CSG签约信息。但需要说明的是，对于混合接入模式的CSG cell来说，其允许非CSG UE接入，即：如果CSG cell对应的CSG ID不在UE的CSG签约信息中或者UE没有CSG签约信息时核心管理网元也允许UE接入该CSG cell。所以对于混合接入模式的CSG cell来说，不支持CSG功能的UE或者不使用CSG功能的UE也能够接入该CSG cell。对于不支持CSG功能的UE或者不使用CSG功能的UE而言，虽然接入了CSG小区，但是核心管理网元不执行接入控制，并未使用到核心管理网元从CSG管理服务器中获取到的CSG签约信息，所以当不支持CSG功能的UE和/或不使用CSG功能的UE请求接入CSG小区时，限制核心管理网元从CSG管理服务器中获取CSG签约信息能够进一步地减少核心管理网元与CSG管理服务器之间的信令交互。因此，本实施例提供的信息获取方法，还可以在接入请求消息中携带CSG支持指示信息和/或CSG使用指示信息，使得核心管理网元可以判断出接入请求接入的UE是否不支持CSG功能和/或不使用CSG功能。具体地，可以在接入请求消息中携带的CSG支持指示信息包括以下几种：Further, in this embodiment, when the UE requests to access the CSG cell, the core management network element obtains the CSG subscription information from the CSG management server. However, it should be noted that for a CSG cell in hybrid access mode, non-CSG UEs are allowed to access, that is, if the CSG ID corresponding to the CSG cell is not in the CSG subscription information of the UE or the UE does not have CSG subscription information, the core management The network element also allows the UE to access the CSG cell. Therefore, for a CSG cell in hybrid access mode, a UE that does not support the CSG function or a UE that does not use the CSG function can also access the CSG cell. For a UE that does not support the CSG function or a UE that does not use the CSG function, although the CSG cell is accessed, the core management network element does not perform access control, and the core management network element does not use the CSG management server. Therefore, when a UE that does not support the CSG function and/or a UE that does not use the CSG function requests to access a CSG cell, restricting the core management network element to obtain the CSG subscription information from the CSG management server can further reduce the number of core management network elements. Signaling interaction between the element and the CSG management server. Therefore, the information acquisition method provided in this embodiment may also carry CSG support indication information and/or CSG use indication information in the access request message, so that the core management network element can determine whether the UE that accesses the access request does not support CSG features and/or no use of CSG features. Specifically, the CSG support indication information that may be carried in the access request message includes the following types:

1、CSG Support indication信元。如果UE支持CSG功能，则UE向核心管理网元发送的接入请求消息中携带有CSG Support indication信元；如果UE不支持CSG功能，则UE向核心管理网元发送的接入请求消息中未携带有CSG Support indication信元。或者，1. CSG Support indication cell. If the UE supports the CSG function, the access request message sent by the UE to the core management network element carries the CSG Support indication information element; if the UE does not support the CSG function, the access request message sent by the UE to the core management network element does not include Carry CSG Support indication information element. or,

2、CSG Not Support indication信元。如果UE支持CSG功能，则UE向核心管理网元发送的接入请求消息中未携带有CSG Support indication信元；如果UE不支持CSG功能，则UE向核心管理网元发送的接入请求消息中携带有CSG Not Support indication信元。或者，2. CSG Not Support indication cell. If the UE supports the CSG function, the access request message sent by the UE to the core management network element does not carry the CSG Support indication information element; if the UE does not support the CSG function, the access request message sent by the UE to the core management network element Carry CSG Not Support indication information element. or,

3、CSG Support Flag信元。如果UE支持CSG功能，则UE向核心管理网元发送的接入请求消息中携带的CSG Support Flag信元值为True；如果UE不支持CSG功能，则UE向核心管理网元发送的接入请求消息中携带的CSG Support Flag信元值为False。3. CSG Support Flag cell. If the UE supports the CSG function, the value of the CSG Support Flag information element carried in the access request message sent by the UE to the core management network element is True; if the UE does not support the CSG function, the access request message sent by the UE to the core management network element The value of the CSG Support Flag information element carried in the message is False.

可以在接入请求消息中携带的CSG使用指示信息包括以下几种：The CSG usage indication information that can be carried in the access request message includes the following types:

1、CSG Used indication信元。如果UE使用CSG功能，则UE向核心管理网元发送的接入请求消息中携带有CSG Used indication信元；如果UE不使用CSG功能，则UE向核心管理网元发送的接入请求消息中未携带有CSGUsed indication信元。或者，1. CSG Used indication cell. If the UE uses the CSG function, the access request message sent by the UE to the core management network element carries the CSG Used indication information element; if the UE does not use the CSG function, the access request message sent by the UE to the core management network element does not include It carries the CSGUsed indication information element. or,

2、CSG Not Used indication信元。如果UE使用CSG功能，则UE向核心管理网元发送的接入请求消息中未携带有CSG Used indication信元；如果UE不使用CSG功能，则UE向核心管理网元发送的接入请求消息中携带有CSG Not Used indication信元。或者，2. CSG Not Used indication cell. If the UE uses the CSG function, the access request message sent by the UE to the core management network element does not carry the CSG Used indication information element; if the UE does not use the CSG function, the access request message sent by the UE to the core management network element Carry CSG Not Used indication information element. or,

3、CSG Used Flag信元。如果UE使用CSG功能，则UE向核心管理网元发送的接入请求消息中携带的CSG Used Flag信元值为True；如果UE不使用CSG功能，则UE向核心管理网元发送的接入请求消息中携带的CSGUsed Flag信元值为False。3. CSG Used Flag cell. If the UE uses the CSG function, the value of the CSG Used Flag information element carried in the access request message sent by the UE to the core management network element is True; if the UE does not use the CSG function, the access request message sent by the UE to the core management network element The value of the CSGUsed Flag information element carried in the message is False.

更进一步地，本实施例中的CSG管理服务器包括HSS和CSS，HSS中保存有非漫游UE即：本公众陆地移动网络(Public Land Mobile Network，以下简称：PLMN)内的UE在本PLMN网络内的CSG签约信息，CSS中保存有漫游UE在本PLMN内的CSG签约信息。对于非漫游UE来说，核心管理网元从HSS中获取UE的签约信息的同时获取到UE的CSG签约信息。所以，对于非漫游UE来说，核心管理网元没有必要再从CSS中获取UE的CSG签约信息。对于漫游UE来说，核心管理网元从漫游UE归属的HSS中获取UE的签约信息时不能获取到漫游UE在接入的PLMN网络内的CSG签约信息，所以核心管理网元需从CSS中获取漫游UE在接入的PLMN网络内的CSG签约信息。所以UE是非漫游UE时，限制核心管理网元从CSS中获取CSG签约信息能够进一步地减少核心管理网元和CSG管理服务器之间的信令交互。因此，本实施例提供的信息获取方法，还可以在接入请求消息中携带UE标识，使得核心管理网元可以判断出接入请求接入CSG小区的UE是否为漫游UE。其中，该UE标识可以为国际移动用户识别码(International Mobile Subscriber Identity，以下简称：IMSI)或移动台国际ISDN号码(Mobile Station International ISDN Number，以下简称：MSISDN)等。Furthermore, the CSG management server in this embodiment includes HSS and CSS, and the HSS stores non-roaming UEs, that is, UEs in this Public Land Mobile Network (Public Land Mobile Network, hereinafter referred to as: PLMN) are in this PLMN network The CSG subscription information of the roaming UE in the current PLMN is stored in the CSS. For a non-roaming UE, the core management network element obtains the subscription information of the UE from the HSS and obtains the CSG subscription information of the UE at the same time. Therefore, for a non-roaming UE, it is not necessary for the core management network element to obtain the CSG subscription information of the UE from the CSS. For roaming UEs, when the core management network element obtains the subscription information of the UE from the HSS to which the roaming UE belongs, it cannot obtain the CSG subscription information in the PLMN network that the roaming UE accesses, so the core management network element needs to obtain it from the CSS CSG subscription information of the roaming UE in the accessed PLMN network. Therefore, when the UE is a non-roaming UE, restricting the core management network element to obtain CSG subscription information from the CSS can further reduce the signaling interaction between the core management network element and the CSG management server. Therefore, the information acquisition method provided in this embodiment can also carry the UE identifier in the access request message, so that the core management network element can determine whether the UE requesting to access the CSG cell is a roaming UE. Wherein, the UE identifier may be an International Mobile Subscriber Identity (International Mobile Subscriber Identity, hereinafter referred to as: IMSI) or a mobile station international ISDN number (Mobile Station International ISDN Number, hereinafter referred to as: MSISDN), etc.

综合上述说明，本实施例中的请求消息中可以携带UE标识、CSG支持指示信息和/或CSG使用指示信息，具体地，根据请求消息中携带的不同信息，核心管理网元还可以进行以下几种操作的之一或其任意组合，进一步地减少核心管理网元和CSG管理服务器之间的信令交互：Based on the above description, the request message in this embodiment may carry UE identity, CSG support indication information and/or CSG use indication information. Specifically, according to different information carried in the request message, the core management network element may also perform the following operations: One or any combination of these operations further reduces the signaling interaction between the core management network element and the CSG management server:

第一种，根据接入请求消息中携带的CSG支持指示信息确定请求接入的UE支持CSG功能；The first method is to determine that the UE requesting access supports the CSG function according to the CSG support indication information carried in the access request message;

第二种，根据接入请求消息中携带的CSG使用指示信息确定请求接入的UE使用CSG功能；The second method is to determine that the UE requesting access uses the CSG function according to the CSG usage indication information carried in the access request message;

第三种，根据接入请求消息中携带的UE标识确定请求接入的UE为漫游UE。The third way is to determine that the UE requesting access is a roaming UE according to the UE identifier carried in the access request message.

在上述的操作中，只要核心管理网元确定请求接入的UE为漫游UE，则核心管理网元则从CSS中获取CSG签约信息。In the above operations, as long as the core management network element determines that the UE requesting access is a roaming UE, the core management network element obtains the CSG subscription information from the CSS.

更进一步地，本实施例中CSG管理服务器中存储的CSG签约信息包括了多个PLMN对应的CSG签约信息，则核心管理网元从CSG管理服务器中获取CSG签约信息时，获取的是所有PLMN对应CSG签约信息，导致核心管理网元和CSG管理服务器之间的信令负荷较大。则为了进一步减少核心管理网元和CSG管理服务器之间的信令负荷，本实施例中UE在发给核心管理网元中的接入请求消息中还可以携带有选择的PLMN标识信息或者核心管理网元获取本网络的PLMN标识信息。核心管理网元在发给CSG管理服务器的接入请求消息可以携带该PLMN标识，CSG管理服务器只将该PLMN标识对应的CSG签约信息发给核心管理网元，进一步地降低了核心管理网元和CSG管理服务器之间的信令负荷。Furthermore, in this embodiment, the CSG subscription information stored in the CSG management server includes CSG subscription information corresponding to multiple PLMNs. When the core management network element obtains the CSG subscription information from the CSG management server, it obtains the CSG subscription information corresponding to all PLMNs. The CSG subscription information causes a heavy signaling load between the core management network element and the CSG management server. In order to further reduce the signaling load between the core management network element and the CSG management server, in this embodiment, the access request message sent by the UE to the core management network element may also carry selected PLMN identification information or core management The network element obtains the PLMN identification information of the local network. The access request message sent by the core management network element to the CSG management server can carry the PLMN identifier, and the CSG management server only sends the CSG subscription information corresponding to the PLMN identifier to the core management network element, further reducing the cost of the core management network element and The CSG manages the signaling load between servers.

本发明中根据接入请求消息中携带的CSG标识确定请求接入的目标小区是否为CSG小区，若是，则获取CSG签约信息，使得核心管理网元在目标小区为CSG小区时，到CSG管理服务器中获取CSG签约信息，降低了核心管理网元与CSG管理服务器之间的信令负荷，提高了核心管理网元和CSG管理服务器的信息处理效率。In the present invention, according to the CSG identifier carried in the access request message, it is determined whether the target cell requesting access is a CSG cell, and if so, the CSG subscription information is obtained, so that the core management network element can go to the CSG management server when the target cell is a CSG cell The CSG subscription information is acquired in the middle, which reduces the signaling load between the core management network element and the CSG management server, and improves the information processing efficiency of the core management network element and the CSG management server.

图2为本发明实施例提供的信息获取方法的信令图，本实施例以图1提供的信息获取方法为基础，以具体实例对本发明实施例提供的信息获取方法进行详细说明。如图2所示，本实施例可以包括以下步骤：FIG. 2 is a signaling diagram of the information acquisition method provided by the embodiment of the present invention. This embodiment is based on the information acquisition method provided in FIG. 1 , and uses specific examples to describe the information acquisition method provided by the embodiment of the present invention in detail. As shown in Figure 2, this embodiment may include the following steps:

步骤201、UE向核心管理网元发送接入请求消息。Step 201, UE sends an access request message to a core management network element.

其中，本实施例中接入请求消息可以为附着请求(Attach Request)消息、跟踪区更新请求(TAU Request)消息、路由区更新请求(RAU Request)消息、位置区更新请求(LAU Request)消息、服务请求(Service Request)或者呼叫管理服务请求(CM(Call Management)Service Request)等消息。Wherein, the access request message in this embodiment may be an Attach Request (Attach Request) message, a Tracking Area Update Request (TAU Request) message, a Routing Area Update Request (RAU Request) message, a Location Area Update Request (LAU Request) message, Service request (Service Request) or call management service request (CM (Call Management) Service Request) and other messages.

当UE通过接入网元所辖的目标小区接入运营商的无线网络时，UE通过接入网元向核心管理网元发送接入请求消息，以请求接入目标小区。如果目标小区为CSG小区，则接入网元在发送该请求消息到核心管理网元的消息(如，S1接口和Iu接口中的初始化UE消息(Initial UE Message)中携带该CSG标识。可选的，接入网元在发送该请求消息到核心管理网元的消息(如，S1接口和Iu接口中的初始化UE消息(Initial UE Message)中携带CSG小区的接入模式(如，封闭接入模式或者混合接入模式等)。When the UE accesses the operator's wireless network through the target cell governed by the access network element, the UE sends an access request message to the core management network element through the access network element to request access to the target cell. If the target cell is a CSG cell, the access network element carries the CSG identifier in the message (for example, the Initial UE Message (Initial UE Message) in the S1 interface and the Iu interface) that sends the request message to the core management network element. Optional Yes, the access network element carries the access mode of the CSG cell (such as closed access mode or hybrid access mode, etc.).

进一步地，该接入请求消息中还可以携带有UE标识、CSG支持指示信息、CSG使用指示信息、PLMN标识中的一个或者多个的组合，其中，UE标识、CSG支持指示信息、CSG使用指示信息、PLMN标识已经在上述图1提供的实施例进行了说明，此处不再赘述。Further, the access request message may also carry a combination of one or more of UE identity, CSG support indication information, CSG use indication information, and PLMN identity, wherein the UE identity, CSG support indication information, and CSG use indication The information and the PLMN identifier have been described in the embodiment provided in FIG. 1 above, and will not be repeated here.

步骤202、核心管理网元判断该接入请求消息中是否携带有CSG标识，若是，则执行步骤203；若否，则执行步骤206。Step 202, the core management network element judges whether the access request message carries a CSG identifier, if yes, execute step 203; if not, execute step 206.

若该接入请求消息中携带有CSG标识，则核心管理网元确定UE请求接入的目标小区为CSG小区，执行步骤203；若该接入请求消息未携带有CSG标识，则核心管理网元确定UE请求接入的目标小区为非CSG小区，执行步骤206。If the access request message carries a CSG identifier, the core management network element determines that the target cell that the UE requests to access is a CSG cell, and performs step 203; if the access request message does not carry a CSG identifier, the core management network element It is determined that the target cell that the UE requests to access is a non-CSG cell, and step 206 is performed.

进一步地，若接入请求消息中还携带有UE标识、CSG支持指示信息、CSG使用指示信息中的一个或者多个的组合时，则核心网元还需要进行以下几种判断中的之一或其任意组合：Further, if the access request message also carries a combination of one or more of the UE identity, CSG support indication information, and CSG usage indication information, the core network element also needs to make one of the following judgments or Any combination of:

1、根据接入请求消息中携带的CSG支持指示信息判断UE是否支持CSG功能，若是，则执行步骤203；若否，则执行步骤206。1. Determine whether the UE supports the CSG function according to the CSG support indication information carried in the access request message, if yes, perform step 203; if not, perform step 206.

2、根据接入请求消息中携带的CSG使用指示信息判断UE是否使用CSG功能，若是，则执行步骤203；若否，则执行步骤206。2. Judging whether the UE uses the CSG function according to the CSG usage indication information carried in the access request message, if yes, execute step 203; if not, execute step 206.

3、根据接入请求消息中携带的UE标识判断该UE是否为漫游UE，若是，则执行步骤203；若否，则执行步骤206。3. Judging whether the UE is a roaming UE according to the UE identifier carried in the access request message, if yes, execute step 203; if not, execute step 206.

步骤203、核心管理网元查找自身的存储设备中是否保存有该UE的CSG签约信息，若查找到，则执行步骤206；若未查找到，则执行步骤204。Step 203 , the core management network element checks whether the CSG subscription information of the UE is saved in its own storage device, if found, executes step 206 ; if not found, executes step 204 .

若核心管理网元在执行本实施例的流程之前获取过UE的CSG签约信息，则该核心管理网元的存储设备中保存有该UE的CSG签约信息。If the core management network element has acquired the CSG subscription information of the UE before executing the procedure of this embodiment, the storage device of the core management network element stores the CSG subscription information of the UE.

本步骤中，若核心管理网元从自身的存储设备中查找到该UE的CSG签约信息，则执行步骤206，直接使用该CSG签约信息进行接入控制，能够使核心管理网元不与CSG管理服务器进行信令交互；若核心管理网元未从自身的存储设备中查找到CSG签约信息，则执行步骤204，从CSG管理服务器中获取CSG签约信息。In this step, if the core management network element finds the CSG subscription information of the UE from its own storage device, step 206 is performed to directly use the CSG subscription information for access control, so that the core management network element does not have to communicate with the CSG management The server performs signaling interaction; if the core management network element does not find the CSG subscription information from its own storage device, execute step 204 to obtain the CSG subscription information from the CSG management server.

需要说明的是，本步骤中核心管理网元查询自身的存储设备中是否有UE的CSG签约信息是可选的。在实际的应用过程中为了保证UE的CSG签约信息是最新的，核心管理网元可以在每次收到UE的接入请求消息后都去CSG管理服务器中获取UE的CSG签约信息，而不管自身的存储设备中是否有UE的CSG签约信息。It should be noted that in this step, it is optional for the core management network element to query whether there is CSG subscription information of the UE in its own storage device. In the actual application process, in order to ensure that the UE’s CSG subscription information is up-to-date, the core management network element can go to the CSG management server to obtain the UE’s CSG subscription information every time it receives the UE’s access request message, regardless of its own Whether there is CSG subscription information of the UE in the storage device of the device.

步骤204、核心管理网元向CSG管理服务器发送请求获取CSG签约信息消息以获取CSG签约信息。Step 204, the core management network element sends a CSG subscription information request message to the CSG management server to obtain the CSG subscription information.

进一步地，该请求获取CSG签约信息消息中可以携带有UE接入的PLMN信息如，PLMN ID。Further, the request to acquire CSG subscription information message may carry the PLMN information accessed by the UE, such as PLMN ID.

步骤205、CSG管理服务器向核心管理网元发送CSG签约信息获取确认消息，该CSG签约信息获取确认消息携带有CSG签约信息。Step 205, the CSG management server sends a CSG subscription information acquisition confirmation message to the core management network element, and the CSG subscription information acquisition confirmation message carries the CSG subscription information.

当CSG管理服务器接收到核心管理网元发送的请求获取CSG签约信息消息后，将UE的CSG签约信息携带在CSG签约信息获取确认消息中向核心管理网元发送。After receiving the CSG subscription information request message sent by the core management network element, the CSG management server carries the UE's CSG subscription information in the CSG subscription information acquisition confirmation message and sends it to the core management network element.

进一步地，若请求获取CSG签约信息消息中还携带有PLMN标识时，则CSG管理服务器将该PLMN对应的CSG签约信息携带在CSG签约信息获取确认消息中向核心管理网元发送，以减少核心管理网元与CSG管理服务器之间的信息负荷。Further, if the request to acquire CSG subscription information message also carries the PLMN identifier, the CSG management server carries the CSG subscription information corresponding to the PLMN in the CSG subscription information acquisition confirmation message and sends it to the core management network element to reduce core management. Information load between network elements and CSG management server.

步骤206、核心管理网元执行接入控制。Step 206, the core management network element performs access control.

核心管理网元根据获取到的CSG签约信息执行接入控制。例如：UE接入的CSG小区对应的CSG ID在获取到的CSG签约信息中，则核心管理网元允许UE在CSG小区内接入，并向UE发送接入接受消息；如果UE接入的CSG小区对应的CSG ID不在获取到的CSG签约信息中，且CSG小区的接入模式为封闭接入模式，则核心管理网元不允许UE在接入的CSG小区内接入，并向UE发送接入拒绝消息。The core management network element performs access control according to the acquired CSG subscription information. For example, if the CSG ID corresponding to the CSG cell accessed by the UE is included in the obtained CSG subscription information, the core management network element allows the UE to access in the CSG cell and sends an access acceptance message to the UE; if the CSG cell accessed by the UE If the CSG ID corresponding to the cell is not included in the obtained CSG subscription information, and the access mode of the CSG cell is closed access mode, the core management network element does not allow the UE to access the CSG cell and sends an access message to the UE. Enter a rejection message.

步骤207、核心管理网元向UE返回接入接受/拒绝消息。Step 207, the core management network element returns an access acceptance/rejection message to the UE.

核心管理网元通过接入网元向UE返回接入接受/拒绝消息。The core management network element returns an access acceptance/rejection message to the UE through the access network element.

本实施例中根据接入请求消息中携带的CSG标识确定UE请求接入的目标小区是否为CSG小区，若是，则获取CSG签约信息，使得核心管理网元在目标小区为CSG小区时，到CSG管理服务器中获取CSG签约信息，降低了核心管理网元与CSG管理服务器之间的信令负荷，提高了核心管理网元和CSG管理服务器的信息处理效率。In this embodiment, according to the CSG identifier carried in the access request message, it is determined whether the target cell that the UE requests to access is a CSG cell. Obtaining the CSG subscription information in the management server reduces the signaling load between the core management network element and the CSG management server, and improves the information processing efficiency of the core management network element and the CSG management server.

图3为本发明实施例提供的信息获取方法的信令图，本实施例以图2提供的信息获取方法为基础，具体对UE从宏小区切换到CSG小区时，获取CSG签约信息的情况进行说明。如图3所示，本实施例可以包括以下步骤。FIG. 3 is a signaling diagram of the information acquisition method provided by the embodiment of the present invention. This embodiment is based on the information acquisition method provided in FIG. illustrate. As shown in FIG. 3 , this embodiment may include the following steps.

需要说明的是，本实施例的宏小区和CSG小区分别处于源接入网元和目标接入网元中，源接入网元、目标接入网元与同一个核心管理网元链接。It should be noted that the macro cell and the CSG cell in this embodiment are located in the source access network element and the target access network element respectively, and the source access network element and the target access network element are linked to the same core management network element.

在本实施例的步骤执行之前，UE通过源接入网元所辖的宏小区接入运营商的无线网络，由于UE从宏小区移动到CSG小区，为了使UE不中断地接入该无线网络，则需要将向UE提供服务的宏小区切换为CSG小区。但核心管理网元中未存储CSG签约信息，因此，核心管理网元无法执行接入控制。为了使UE成功切换到CSG小区，则需要执行本实施例的流程。本实施例中，CSG小区在目标接入网元所辖范围内。Before the steps in this embodiment are executed, the UE accesses the operator’s wireless network through the macro cell governed by the source access network element. Since the UE moves from the macro cell to the CSG cell, in order for the UE to access the wireless network without interruption , it is necessary to switch the macro cell providing service to the UE to the CSG cell. However, the CSG subscription information is not stored in the core management network element, therefore, the core management network element cannot perform access control. In order to make the UE handover to the CSG cell successfully, the procedure of this embodiment needs to be executed. In this embodiment, the CSG cell is within the jurisdiction of the target access network element.

步骤301、源接入网元和目标接入网元之间执行切换准备。Instep 301, handover preparation is performed between the source access network element and the target access network element.

当确定需要将UE接入的宏小区切换为CSG小区时，源接入网元和目标接入网元之间进行交互，执行切换准备，When it is determined that the macro cell accessed by the UE needs to be handed over to the CSG cell, the source access network element and the target access network element interact to perform handover preparations,

步骤302、目标接入网元向核心管理网元发送路径切换请求消息。Step 302, the target access network element sends a path switching request message to the core management network element.

其中，本实施例的接入请求消息以路径切换请求(Path Switch Request)消息为例进行说明，但不限于路径切换请求消息。该路径切换请求消息中可以携带有目标小区信息如：TAI信息、小区信息；若目标小区为CSG小区时，该路径切换请求消息中还可以携带有CSG小区的CSG标识。可选的，该路径切换请求消息中携带CSG小区的接入模式如，封闭接入模式或者混合接入模式等。Wherein, the access request message in this embodiment is described by taking the Path Switch Request (Path Switch Request) message as an example, but is not limited to the Path Switch Request message. The path switch request message may carry target cell information such as TAI information and cell information; if the target cell is a CSG cell, the path switch request message may also carry the CSG identifier of the CSG cell. Optionally, the path switch request message carries the access mode of the CSG cell, such as closed access mode or hybrid access mode.

进一步地，该路径切换请求消息中还可以携带有UE标识、CSG支持指示信息、CSG使用指示信息、PLMN标识中的一个或者多个的组合，其中，UE标识、CSG支持指示信息、CSG使用指示信息、PLMN标识已经在上述图1提供的实施例进行了说明，此处不再赘述。Further, the path switch request message may also carry a combination of one or more of UE identity, CSG support indication information, CSG use indication information, and PLMN identity, wherein the UE identity, CSG support indication information, and CSG use indication The information and the PLMN identifier have been described in the embodiment provided in FIG. 1 above, and will not be repeated here.

本实施例中的步骤303-步骤307与上述图2提供的实施例中的步骤202-步骤206相同，此处不再赘述。Steps 303 to 307 in this embodiment are the same as steps 202 to 206 in the embodiment provided in FIG. 2 above, and will not be repeated here.

步骤308、核心管理网元向目标接入网元返回路径切换请求确认消息。Step 308, the core management network element returns a path switching request confirmation message to the target access network element.

其中，本实施例的请求消息以路径切换请求确认(Path Switch Request Ack)消息为例进行说明，但不限于路径切换请求确认消息。Wherein, the request message in this embodiment is described by taking a Path Switch Request Ack (Path Switch Request Ack) message as an example, but is not limited to the Path Switch Request Ack message.

步骤309、执行切换的其他流程。Step 309, perform other handover procedures.

在目标接入网元接收到路径切换请求确认消息后，源接入网元所辖的宏小区中断与UE的链接，目标接入网元允许UE接入CSG小区，使得UE通过CSG小区继续接入无线网络。After the target access network element receives the path switching request confirmation message, the macro cell under the jurisdiction of the source access network element interrupts the connection with the UE, and the target access network element allows the UE to access the CSG cell, so that the UE continues to connect to the CSG cell through the CSG cell. into the wireless network.

本实施例中根据路径切换请求消息中携带的CSG标识确定UE请求接入的目标小区是否为CSG小区，若是，则获取CSG签约信息，使得核心管理网元在目标小区为CSG小区时，到CSG管理服务器中获取CSG签约信息，在降低了核心管理网元与CSG管理服务器之间的信令负荷的基础上，实现了UE从宏小区切换到CSG小区。且本实例中保证了核心管理网元在切换的流程中到CSG管理服务器获取CSG签约数据，从而对用户执行CSG接入控制处理，保证用户切换到允许接入的CSG小区，而不能切换到不允许接入的CSG小区，同时根据确定原则到CSG管理服务器中获取CSG签约数据，保证不必要的CSG签约数据获取处理，大大减少核心管理网元和CSG管理服务器之间的信令交互，从而大大减少核心管理网元和CSG管理服务器的处理负荷。In this embodiment, according to the CSG identifier carried in the path switching request message, it is determined whether the target cell that the UE requests to access is a CSG cell. The CSG subscription information is acquired in the management server, and on the basis of reducing the signaling load between the core management network element and the CSG management server, UE is handed over from the macro cell to the CSG cell. In addition, this example ensures that the core management network element obtains CSG subscription data from the CSG management server during the handover process, thereby performing CSG access control processing on users, ensuring that users are handed over to CSG cells that are allowed to be accessed, and cannot be handed over to other CSG cells. The CSG cell that is allowed to access, at the same time obtains the CSG subscription data from the CSG management server according to the determination principle, ensures the acquisition and processing of unnecessary CSG subscription data, and greatly reduces the signaling interaction between the core management network element and the CSG management server, thus greatly Reduce the processing load of core management network elements and CSG management servers.

图4为本发明实施例提供的信息获取方法的信令图，本实施例以图3提供的信息获取方法为基础，具体对宏小区切换到CSG小区时，获取CSG签约信息的情况进行说明，与图3提供的实施例的区别在于，本实施例中源接入网元与源核心管理网元链接，目标接入网元与目标核心管理网元链接。如图4所示，本实施例可以包括以下步骤：FIG. 4 is a signaling diagram of an information acquisition method provided by an embodiment of the present invention. This embodiment is based on the information acquisition method provided in FIG. 3 , and specifically describes the acquisition of CSG subscription information when a macro cell is handed over to a CSG cell. The difference from the embodiment provided in FIG. 3 is that in this embodiment, the source access network element is linked with the source core management network element, and the target access network element is linked with the target core management network element. As shown in Figure 4, this embodiment may include the following steps:

本实施例的步骤执行之前的场景，与上述图3提供的实施例相同，此处不再赘述。The scene before the execution of the steps of this embodiment is the same as the above embodiment provided in FIG. 3 , and will not be repeated here.

本实施例中的步骤401与上述图3提供的实施例中步骤301相同，此处不再赘述。Step 401 in this embodiment is the same asstep 301 in the embodiment provided in FIG. 3 above, and will not be repeated here.

步骤402、源接入网元向核心管理网元发送切换需求消息Step 402, the source access network element sends a handover request message to the core management network element

其中，本实施例的接入请求消息以切换需求(Handover Required)消息为例进行说明，但不限于切换需求消息。该切换需求消息所携带的信息参见上述图3提供的实施例中的路径切换请求消息，此处不再赘述。Wherein, the access request message in this embodiment is described by taking a handover required (Handover Required) message as an example, but is not limited to the handover required message. For the information carried in the handover requirement message, refer to the path switch request message in the embodiment provided in FIG. 3 above, which will not be repeated here.

如果目标小区为CSG小区，源接入网元将目标小区对应的CSG标识携带在切换需求消息中向核心管理网元发送。可选的，该路径切换请求消息中携带CSG小区的接入模式如，封闭接入模式或者混合接入模式等。If the target cell is a CSG cell, the source access network element carries the CSG identifier corresponding to the target cell in the handover requirement message and sends it to the core management network element. Optionally, the path switch request message carries the access mode of the CSG cell, such as closed access mode or hybrid access mode.

进一步地，该切换需求消息中还可以携带有UE标识、CSG支持指示信息、CSG使用指示信息、PLMN标识中的一个或者多个的组合，其中，UE标识、CSG支持指示信息、CSG使用指示信息、PLMN标识已经在上述图1提供的实施例进行了说明，此处不再赘述。Further, the handover requirement message may also carry a combination of one or more of UE identity, CSG support indication information, CSG use indication information, and PLMN identity, wherein the UE identity, CSG support indication information, and CSG use indication information . The PLMN identifier has been described in the embodiment provided in FIG. 1 above, and will not be repeated here.

本实施例中的步骤403-步骤406与上述图2提供的实施例中的步骤202-步骤205相同，此处不再赘述。区别在于本实施例的步骤403-步骤406中源核心管理网元代替了图2提供的实施例的核心管理网元。Step 403 to step 406 in this embodiment are the same as step 202 to step 205 in the above embodiment provided in FIG. 2 , and will not be repeated here. The difference is that the source core management network element insteps 403 to 406 of this embodiment replaces the core management network element in the embodiment provided in FIG. 2 .

步骤407、源核心管理网元向目标核心管理网元发送前传重定位请求消息，该前传重定位请求消息中携带有CSG签约信息。Step 407, the source core management network element sends a fronthaul relocation request message to the target core management network element, and the fronthaul relocation request message carries CSG subscription information.

需要说明的是，本实施例中由目标接入网元执行接入控制操作，且该目标接入网元在目标核心管理网元所辖范围内，因此，当源核心管理网元获取到CSG签约信息后，将获取到的CSG签约信息携带在前传重定位请求消息中向目标核心管理网元发送。It should be noted that in this embodiment, the access control operation is performed by the target access network element, and the target access network element is within the jurisdiction of the target core management network element. Therefore, when the source core management network element obtains the CSG After signing the subscription information, carry the obtained CSG subscription information in the fronthaul relocation request message and send it to the target core management network element.

步骤408、目标核心管理网元向目标接入网元发送切换需求消息，该切换需求消息中携带有CSG签约信息。Step 408, the target core management network element sends a handover request message to the target access network element, and the handover request message carries CSG subscription information.

本实施例中由目标接入网元执行接入控制操作，因此，当目标核心管理网元接收到CSG签约信息后，将接收到的CSG签约信息携带在切换请求(Handover Request)消息向目标接入网元发送，以请求目标接入网元执行接入控制操作。In this embodiment, the target access network element performs the access control operation. Therefore, when the target core management network element receives the CSG subscription information, it carries the received CSG subscription information in the handover request (Handover Request) message to the target access network element. It is sent by an incoming network element to request the target access network element to perform an access control operation.

步骤409、目标接入网元执行接入控制操作。Step 409, the target access network element performs an access control operation.

目标接入网元根据获取到的CSG签约信息执行接入控制。如，如果目标CSG cell对应的CSG ID在获取到的CSG签约信息中，则目标接入网元允许UE在请求接入的CSG小区内接入，发送切换需求确认(Handover Request Ack)消息到目标核心管理网元；如果目标CSG cell对应的CSG ID不在获取到的CSG签约信息中且CSG cell的接入模式为封闭接入模式，则目标接入网元不允许UE在接入的CSG小区内接入，发送切换需求拒绝(Handover Request Reject)消息到目标核心管理网元。The target access network element performs access control according to the acquired CSG subscription information. For example, if the CSG ID corresponding to the target CSG cell is in the obtained CSG subscription information, the target access network element allows the UE to access in the CSG cell requesting access, and sends a handover request acknowledgment (Handover Request Ack) message to the target Core management network element; if the CSG ID corresponding to the target CSG cell is not in the obtained CSG subscription information and the access mode of the CSG cell is closed access mode, the target access network element does not allow the UE to be in the accessed CSG cell Access, send a Handover Request Reject (Handover Request Reject) message to the target core management network element.

步骤410、目标接入网元向目标核心管理网元返回切换需求确认/拒绝消息。Step 410, the target access network element returns a handover requirement confirmation/rejection message to the target core management network element.

步骤411、目标核心管理网元向源核心管理网元返回前传重定位响应消息，该前传重定位响应消息中携带有切换成功/切换失败的指示信息。Step 411 , the target core management network element returns a fronthaul relocation response message to the source core management network element, and the fronthaul relocation response message carries handover success/failure indication information.

目标核心管理网元根据接收到的切换需求确认/拒绝消息确定切换是否成功，若接收到切换需求确认消息，则切换成功，目标核心管理网元将切换成功的指示信息携带在前传重定位响应消息中向源核心管理网元发送；若接收到切换需求拒绝消息，则切换失败，目标核心管理网元将切换失败的指示信息携带在前传重定位响应消息中向源核心管理网元发送。The target core management network element determines whether the handover is successful according to the received handover demand confirmation/rejection message. If the handover demand confirmation message is received, the handover is successful, and the target core management network element carries the indication information of the handover success in the forward transmission relocation response message If the handover demand rejection message is received, the handover fails, and the target core management network element carries the indication information of the handover failure in the fronthaul relocation response message and sends it to the source core management network element.

本实施例中的步骤412与上述图2提供的实施例中的步骤207相同，此处不再赘述。Step 412 in this embodiment is the same as step 207 in the above embodiment provided in FIG. 2 , and will not be repeated here.

本实例中保证了核心管理网元在切换的流程中到CSG管理服务器获取CSG签约数据，从而对UE执行CSG接入控制处理，保证UE切换到允许接入的CSG小区，而不能切换到不允许接入的CSG小区，同时根据确定原则到CSG管理服务器中获取CSG签约数据，保证不必要的CSG签约数据获取处理，大大减少核心管理网元和CSG管理服务器之间的信令交互，从而大大减少核心管理网元和CSG管理服务器的处理负荷。This example ensures that the core management network element obtains CSG subscription data from the CSG management server during the handover process, thereby performing CSG access control processing on the UE, ensuring that the UE is handed over to a CSG cell that is allowed to access, and cannot be handed over to a CSG cell that is not allowed. The connected CSG cell obtains the CSG subscription data from the CSG management server according to the determination principle at the same time, ensuring the acquisition and processing of unnecessary CSG subscription data, greatly reducing the signaling interaction between the core management network element and the CSG management server, thereby greatly reducing The core manages the processing load of network elements and CSG management servers.

进一步地，本实施例中由目标接入网元执行切换控制操作，在实际应用中还可以由源核心管理网元、目标核心管理网元执行接入控制操作。具体地，若上述步骤406中，源核心管理网元接收到CSG管理服务器发送的CSG签约信息后，根据该CSG签约信息执行接入控制操作，当源核心管理网元不允许在请求接入的CSG小区内接入时，则上述步骤407-步骤411将不被执行；若上述步骤407中，目标核心管理网元接收到源核心管理网元发送的CSG签约信息后，根据该CSG签约信息执行接入控制操作，当目标核心管理网元不允许在请求接入的CSG小区内接入时，则上述步骤408-步骤410将不被执行。Further, in this embodiment, the target access network element performs the handover control operation, and in practical applications, the source core management network element and the target core management network element may also perform the access control operation. Specifically, if instep 406 above, after receiving the CSG subscription information sent by the CSG management server, the source core management network element performs access control operations according to the CSG subscription information, when the source core management network element does not allow When accessing in the CSG cell, theabove steps 407 to 411 will not be executed; if in theabove step 407, the target core management network element receives the CSG subscription information sent by the source core management network element, it executes according to the CSG subscription information For access control operations, when the target core management network element is not allowed to access in the CSG cell requesting access, the above steps 408-410 will not be executed.

图5为本发明实施例提供的信息获取方法的流程示意图。如图5所示，本实施例可以包括以下步骤：FIG. 5 is a schematic flowchart of an information acquisition method provided by an embodiment of the present invention. As shown in Figure 5, this embodiment may include the following steps:

步骤501、接收携带有CSG支持指示信息的接入请求消息；Step 501, receiving an access request message carrying CSG support indication information;

步骤502、根据所述CSG支持指示信息确定请求接入的UE是否支持CSG功能，若是，则获取CSG签约信息。Step 502: Determine whether the UE requesting access supports the CSG function according to the CSG support indication information, and if so, obtain CSG subscription information.

本实施例提供的信息获取方法可以应用到支持家庭接入模式的无线网络中，具体的无线网络已经在上述图1提供的实施例中进行了详细说明，此处不再赘述。The information acquisition method provided in this embodiment can be applied to a wireless network supporting the home access mode. The specific wireless network has been described in detail in the embodiment provided in FIG. 1 above, and will not be repeated here.

当UE请求接入时，核心管理网元从CSG管理服务器中获取CSG签约信息，其中，该目标小区可以为宏小区，也可以为CSG小区。需要说明的是，在无线网络的混合接入模式下，CSG小区允许不支持CSG功能的UE接入，对于不支持CSG功能的UE而言，虽然接入了CSG小区，但是不执行接入控制，并未使用到核心管理网元从CSG管理服务器中获取到的CSG签约信息，所以当不支持CSG功能的UE接入目标小区时，限制核心管理网元从CSG管理服务器中获取CSG签约信息能够减少核心管理网元与CSG管理服务器之间的信令交互。因此，本实施例提供的信息获取方法，在请求消息中携带CSG支持指示信息，使得核心管理网元可以判断出请求接入的UE是否支持CSG功能。其中，CSG支持指示信息用于向核心管理网元指示请求接入的UE是否支持CSG功能，具体地，本实施例中的CSG支持指示信息可以包括：1、CSG Support indication信元；2、CSG Not Support indication信元；3、CSGSupport Flag信元。上述各种CSG支持指示信息已经在上述图1提供的实施例中进行了详细说明，此处不再赘述。When the UE requests access, the core management network element obtains CSG subscription information from the CSG management server, wherein the target cell may be a macro cell or a CSG cell. It should be noted that in the hybrid access mode of the wireless network, the CSG cell allows UEs that do not support the CSG function to access. For UEs that do not support the CSG function, although they access the CSG cell, access control is not performed. , the CSG subscription information obtained by the core management network element from the CSG management server is not used, so when a UE that does not support the CSG function accesses the target cell, it is possible to restrict the core management network element to obtain the CSG subscription information from the CSG management server Reduce the signaling interaction between the core management network element and the CSG management server. Therefore, the information acquisition method provided in this embodiment carries CSG support indication information in the request message, so that the core management network element can determine whether the UE requesting access supports the CSG function. Wherein, the CSG support indication information is used to indicate to the core management network element whether the UE requesting access supports the CSG function. Specifically, the CSG support indication information in this embodiment may include: 1. CSG Support indication information element; 2. CSG Not Support indication cell; 3. CSGSupport Flag cell. The various CSG support indication information above have been described in detail in the embodiment provided in FIG. 1 above, and will not be repeated here.

本实施例中当UE需要接入目标接入网元所辖范围内的目标小区时，目标接入网元向核心管理网元发送接入请求消息，以请求接入该目标小区，该接入请求消息已经在上述图1提供的实施例中进行了详细说明，此处不再赘述。其中，该接入请求消息中携带有CSG支持指示信息。In this embodiment, when the UE needs to access the target cell within the jurisdiction of the target access network element, the target access network element sends an access request message to the core management network element to request access to the target cell. The request message has been described in detail in the embodiment provided in FIG. 1 above, and will not be repeated here. Wherein, the access request message carries CSG support indication information.

当接入网元接收到UE发送的接入请求消息时，不对该请求消息进行处理直接向核心管理网元转发。当接收到该接入请求消息后，核心管理网元根据该接入请求消息中携带的CSG支持指示信息判断该UE是否支持CSG功能，若该UE支持CSG功能，则核心管理网元向CSG管理服务器发送请求获取CSG签约信息消息，以获取CSG管理服务器中UE的CSG签约信息。当CSG管理服务器接收到该请求获取CSG签约信息消息后，将UE的CSG签约信息携带在CSG签约信息获取确认消息中向核心管理网元发送。核心管理网元接收到CSG签约信息后，执行接入控制操作，并通过目标接入网元向UE返回接入接受/拒绝消息。其中，该接入控制操作已经在图1提供的实施例中进行了详细说明此处不再赘述。When the access network element receives the access request message sent by the UE, it directly forwards the request message to the core management network element without processing the request message. After receiving the access request message, the core management network element judges whether the UE supports the CSG function according to the CSG support indication information carried in the access request message. If the UE supports the CSG function, the core management network element reports to the CSG The server sends a request to acquire CSG subscription information message, so as to acquire the CSG subscription information of the UE in the CSG management server. After receiving the CSG subscription information request message, the CSG management server carries the UE's CSG subscription information in the CSG subscription information acquisition confirmation message and sends it to the core management network element. After receiving the CSG subscription information, the core management network element performs access control operations, and returns an access acceptance/rejection message to the UE through the target access network element. Wherein, the access control operation has been described in detail in the embodiment provided in FIG. 1 and will not be repeated here.

若该UE不支持CSG功能，则核心管理网元停止获取CSG签约信息的操作，避免了不支持CSG功能的UE请求接入目标小区时，核心管理网元从CSG管理服务器中获取CSG签约信息的情况发生，降低了核心管理网元与CSG管理服务器之间的信令负荷。If the UE does not support the CSG function, the core management network element stops the operation of obtaining the CSG subscription information, which avoids the problem that the core management network element obtains the CSG subscription information from the CSG management server when the UE that does not support the CSG function requests to access the target cell When the situation occurs, the signaling load between the core management network element and the CSG management server is reduced.

本实施例中根据请求消息中携带的CSG支持指示信息，确定请求接入目标小区的UE支持CSG功能，则从CSG管理服务器中获取CSG签约信息，使得核心管理网元在UE支持CSG功能时，到CSG管理服务器中获取CSG签约信息，降低了核心管理网元与CSG管理服务器之间的信令负荷，提高了核心管理网元和CSG管理服务器的信息处理效率。In this embodiment, according to the CSG support indication information carried in the request message, it is determined that the UE requesting to access the target cell supports the CSG function, and then obtains the CSG subscription information from the CSG management server, so that the core management network element, when the UE supports the CSG function, Obtaining the CSG subscription information from the CSG management server reduces the signaling load between the core management network element and the CSG management server, and improves the information processing efficiency of the core management network element and the CSG management server.

图6为本发明实施例提供的信息获取方法的流程示意图。如图6所示，本实施例可以包括以下步骤：FIG. 6 is a schematic flowchart of an information acquisition method provided by an embodiment of the present invention. As shown in Figure 6, this embodiment may include the following steps:

步骤601、接收携带有CSG使用指示信息的请求请求消息；Step 601, receiving a request request message carrying CSG usage indication information;

步骤602、根据所述CSG使用指示信息确定所述请求接入的UE是否使用CSG功能，若是，则获取CSG签约信息。Step 602: Determine whether the UE requesting access uses the CSG function according to the CSG usage indication information, and if so, obtain CSG subscription information.

本实施例提供的信息获取方法的应用场景、流程可以参见上述图5提供的实施例，此处不再赘述。本实施例与上述图5提供的实施例的区别在于，本实施例中UE发送的接入请求消息中携带有CSG使用指示信息，该CSG使用指示信息用于向核心管理网元指示请求接入目标小区的UE是否使用CSG功能，具体地，本实施例中的CSG使用指示信息可以包括：1、CSG Usedindication信元；2、CSG Not Used indication信元；3、CSG Used Flag信元。上述各种CSG支持指示信息已经在上述图1提供的实施例中进行了详细说明，此处不再赘述。For the application scenario and process of the information acquisition method provided in this embodiment, reference may be made to the embodiment provided in FIG. 5 above, and details will not be repeated here. The difference between this embodiment and the embodiment provided in FIG. 5 above is that in this embodiment, the access request message sent by the UE carries CSG use indication information, and the CSG use indication information is used to indicate to the core management network element to request access. Whether the UE of the target cell uses the CSG function. Specifically, the CSG usage indication information in this embodiment may include: 1. CSG Used indication information element; 2. CSG Not Used indication information element; 3. CSG Used Flag information element. The various CSG support indication information above have been described in detail in the embodiment provided in FIG. 1 above, and will not be repeated here.

本实施例中根据接入请求消息中携带的CSG使用指示信息，确定请求接入目标小区的UE使用CSG功能，若是，则获取CSG签约信息，使得核心管理网元在UE使用CSG功能时，到CSG管理服务器中获取CSG签约信息，降低了核心管理网元与CSG管理服务器之间的信令负荷，提高了核心管理网元和CSG管理服务器的信息处理效率。In this embodiment, according to the CSG use indication information carried in the access request message, it is determined that the UE requesting to access the target cell uses the CSG function. Obtaining the CSG subscription information from the CSG management server reduces the signaling load between the core management network element and the CSG management server, and improves the information processing efficiency of the core management network element and the CSG management server.

图7为本发明实施例提供的核心管理网元的结构示意图，本实施例提供的核心管理网元可用于图1-图4所示本发明实施例提供的信息获取方法的流程。如图7所示，本发明实施例核心管理网元包括：接收模块11、判断模块12和获取模块13。其中，接收模块11用于接收携带有CSG标识的接入请求消息；判断模块12用于根据该CSG标识确定该接入请求消息请求接入的目标小区是否为CSG小区；获取模块13用于当该目标小区为CSG小区时，获取CSG签约信息。FIG. 7 is a schematic structural diagram of a core management network element provided by an embodiment of the present invention. The core management network element provided by this embodiment can be used in the flow of the information acquisition method provided by the embodiment of the present invention shown in FIGS. 1-4 . As shown in FIG. 7 , the core management network element in the embodiment of the present invention includes: a receiving module 11 , a judging module 12 and an acquiring module 13 . Among them, the receiving module 11 is used to receive the access request message carrying the CSG identifier; the judging module 12 is used to determine whether the target cell requested to be accessed by the access request message is a CSG cell according to the CSG identifier; When the target cell is a CSG cell, obtain CSG subscription information.

当UE需要通过接入网元所辖范围内的目标小区接入运营商的无线网络时，UE通过接入网元向本实施例的核心管理网元发送接入请求消息，该接入请求消息中携带有该目标小区对应的CSG标识。当本实施例核心管理网元的接收模块11接收到该接入请求消息后，判断模块12根据该CSG标识确定该请求消息请求接入的目标小区是否为CSG小区，当判断模块12确定该目标小区为CSG小区时，获取模块13从CSG管理服务器中获取CSG签约信息。通过本实施例的核心管理网元进行的上述操作，避免了UE请求接入非CSG小区时，获取模块13从CSG管理服务器中获取CSG签约信息的情况发生，降低了本实施例核心管理网元与CSG管理服务器之间的信令负荷，提高了核心管理网元和CSG管理服务器的信息处理效率。When the UE needs to access the operator's wireless network through the target cell within the jurisdiction of the access network element, the UE sends an access request message to the core management network element in this embodiment through the access network element. The access request message carries the CSG identifier corresponding to the target cell. When the receiving module 11 of the core management network element in this embodiment receives the access request message, the judging module 12 determines whether the target cell requested by the request message to access is a CSG cell according to the CSG identifier. When the judging module 12 determines that the target When the cell is a CSG cell, the obtaining module 13 obtains the CSG subscription information from the CSG management server. Through the above operations performed by the core management network element in this embodiment, it is avoided that when the UE requests to access a non-CSG cell, the acquisition module 13 obtains the CSG subscription information from the CSG management server, and reduces the cost of the core management network element in this embodiment. The signaling load with the CSG management server improves the information processing efficiency of the core management network element and the CSG management server.

进一步地，本实施例核心管理网元的获取模块13包括：查找单元131和获取单元132。其中，查找单元131用于查找本实施例的核心管理网元内的CSG签约信息；获取单元132用于当该查找单元131未查找到CSG签约信息时，从CSG管理服务器中获取该CSG签约信息。Further, the acquisition module 13 of the core management network element in this embodiment includes: asearch unit 131 and anacquisition unit 132 . Wherein, thesearch unit 131 is used to search for the CSG subscription information in the core management network element of this embodiment; theacquisition unit 132 is used to obtain the CSG subscription information from the CSG management server when thesearch unit 131 does not find the CSG subscription information .

在本实施例核心管理网元从CSG管理服务器中获取CSG签约信息之前，获取模块13中的查找单元131首先查找本实施例的核心管理网元内部是否保存有该UE对应的CSG签约信息，若查找到该CSG信息，则本实施例核心管理网元不需要从CSG管理服务器中获取CSG签约信息，降低了核心管理网元和CSG管理服务器之间的信令负荷；当该查找单元131未查找到CSG签约信息时，则获取单元132从CSG管理服务器中获取该CSG签约信息。在本实施例核心管理网元内部未查找到CSG签约信息的情况下，保证了从CSG管理服务器中获取CSG签约信息。Before the core management network element in this embodiment obtains the CSG subscription information from the CSG management server, thesearch unit 131 in the acquisition module 13 first searches whether the core management network element in this embodiment stores the CSG subscription information corresponding to the UE, if If the CSG information is found, the core management network element in this embodiment does not need to obtain CSG subscription information from the CSG management server, which reduces the signaling load between the core management network element and the CSG management server; when thesearch unit 131 does not search When the CSG subscription information is received, the acquiringunit 132 acquires the CSG subscription information from the CSG management server. In the case that no CSG subscription information is found inside the core management network element in this embodiment, it is guaranteed to obtain the CSG subscription information from the CSG management server.

更进一步地，本实施例核心管理网元还可以包括：执行模块14用于根据获取模块13获取到的CSG签约信息，执行接入控制。Furthermore, the core management network element in this embodiment may further include: an execution module 14 configured to execute access control according to the CSG subscription information acquired by the acquisition module 13 .

本实施例中判断模块12根据接入请求消息中携带的CSG标识确定请求接入的目标小区是否为CSG小区，若是，则获取模块13从CSG管理服务器中获取CSG签约信息，使得核心管理网元在目标小区为CSG小区时，获取模块13从CSG管理服务器中获取CSG签约信息，降低了核心管理网元与CSG管理服务器之间的信令负荷，提高了核心管理网元和CSG管理服务器的信息处理效率。In this embodiment, the judging module 12 determines whether the target cell requesting access is a CSG cell according to the CSG identifier carried in the access request message, and if so, the obtaining module 13 obtains the CSG subscription information from the CSG management server, so that the core management network element When the target cell is a CSG cell, the obtaining module 13 obtains the CSG subscription information from the CSG management server, which reduces the signaling load between the core management network element and the CSG management server, and improves the information of the core management network element and the CSG management server. Processing efficiency.

进一步地，当UE从本实施例核心管理网元所辖范围内的宏小区切换到目标核心管理网元所辖范围内的CSG小区时，本实施例核心管理网元还可以包括：指示模块15用于向目标核心管理网元发送携带有该CSG签约信息的前传重定位请求消息。Further, when the UE is handed over from a macro cell within the jurisdiction of the core management network element in this embodiment to a CSG cell within the jurisdiction of the target core management network element, the core management network element in this embodiment may further include: aninstruction module 15 It is used to send a fronthaul relocation request message carrying the CSG subscription information to the target core management network element.

更进一步地，执行接入控制的主体还可以为目标接入网元，此时，上述指示模块15还可以用于向目标接入网元发送携带有该CSG签约信息的切换需求消息。Furthermore, the subject that performs access control may also be the target access network element. In this case, the above-mentionedinstruction module 15 may also be configured to send a handover request message carrying the CSG subscription information to the target access network element.

图8为本发明实施例提供的核心管理网元的结构示意图，本实施例提供的核心管理网元可用于图5所示本发明实施例提供的信息获取方法的流程。如图8所示，本实施例核心管理网元包括：接收模块21、判断模块22和获取模块23。其中，接收模块21用于接收携带有CSG支持指示信息的接入请求消息；判断模块22用于根据该CSG支持指示信息确定请求接入目标小区的用户设备UE是否支持CSG功能；获取模块23用于当该UE支持CSG功能时，获取CSG签约信息。FIG. 8 is a schematic structural diagram of a core management network element provided by an embodiment of the present invention. The core management network element provided by this embodiment can be used in the flow of the information acquisition method provided by the embodiment of the present invention shown in FIG. 5 . As shown in FIG. 8 , the core management network element in this embodiment includes: a receivingmodule 21 , a judgingmodule 22 and an acquiringmodule 23 . Wherein, the receivingmodule 21 is used to receive the access request message carrying the CSG support indication information; the judgingmodule 22 is used to determine whether the user equipment UE requesting to access the target cell supports the CSG function according to the CSG support indication information; Obtain CSG subscription information when the UE supports the CSG function.

当UE需要通过接入网元所辖范围内的目标小区接入运营商的无线网络时，UE通过接入网元向本实施例的核心管理网元发送接入请求消息，以请求接入该目标小区。当本实施例核心管理网元中的接收模块21接收到携带有CSG支持指示信息的接入请求消息时，判断模块22根据该CSG支持指示信息确定请求接入目标小区的UE是否支持CSG功能，当判断模块22确定该UE支持CSG功能时，获取模块23从CSG管理服务器中获取CSG签约信息。When the UE needs to access the operator's wireless network through the target cell within the jurisdiction of the access network element, the UE sends an access request message to the core management network element in this embodiment through the access network element to request access to the target area. When the receivingmodule 21 in the core management network element of this embodiment receives the access request message carrying the CSG support indication information, the judgingmodule 22 determines whether the UE requesting access to the target cell supports the CSG function according to the CSG support indication information, When the judgingmodule 22 determines that the UE supports the CSG function, the obtainingmodule 23 obtains the CSG subscription information from the CSG management server.

本实施例中判断模块22根据接入请求消息中携带的CSG支持指示信息，确定请求接入目标小区的UE支持CSG功能，则获取模块23从CSG管理服务器中获取CSG签约信息，使得核心管理网元在UE支持CSG功能时，获取模块23从CSG管理服务器中获取CSG签约信息，降低了核心管理网元与CSG管理服务器之间的信令负荷，提高了核心管理网元和CSG管理服务器的信息处理效率。In this embodiment, the judgingmodule 22 determines that the UE requesting to access the target cell supports the CSG function according to the CSG support indication information carried in the access request message, and then the obtainingmodule 23 obtains the CSG subscription information from the CSG management server, so that the core management network When the UE supports the CSG function, the obtainingmodule 23 obtains the CSG subscription information from the CSG management server, which reduces the signaling load between the core management network element and the CSG management server, and improves the information of the core management network element and the CSG management server. Processing efficiency.

图9为本发明实施例提供的核心管理网元的结构示意图，本实施例提供的核心管理网元可用于图6所示本发明实施例提供的信息获取方法的流程。如图10所示，本实施例核心管理网元包括：接收模块31、判断模块32和获取模块33。其中，接收模块31用于接收携带有CSG使用指示信息的接入请求消息；判断模块32用于根据该CSG使用指示信息确定请求接入目标小区的UE是否使用CSG功能；获取模块33用于当该UE使用CSG功能时，从CSG管理服务器中获取CSG签约信息。FIG. 9 is a schematic structural diagram of a core management network element provided by an embodiment of the present invention. The core management network element provided by this embodiment can be used in the flow of the information acquisition method provided by the embodiment of the present invention shown in FIG. 6 . As shown in FIG. 10 , the core management network element in this embodiment includes: a receivingmodule 31 , a judging module 32 and an acquiringmodule 33 . Among them, the receivingmodule 31 is used to receive the access request message carrying the CSG usage instruction information; the judging module 32 is used to determine whether the UE requesting to access the target cell uses the CSG function according to the CSG usage instruction information; When using the CSG function, the UE acquires CSG subscription information from the CSG management server.

本实施例核心管理网元工作时的应用场景、流程可参见上述图8提供的实施例核心管理网元的应用场景、流程，此处不再赘述。本实施例与上述图8提供的实施例的区别在于，本实施例核心管理网元的接收模块31接收到的接入请求消息中携带有CSG使用指示信息，判断模块32根据该CSG使用指示信息确定请求接入目标小区的UE是否使用CSG功能。For the application scenario and process of the core management network element in this embodiment, refer to the application scenario and process of the core management network element in the embodiment provided in FIG. 8 above, and will not be repeated here. The difference between this embodiment and the embodiment provided in FIG. 8 above is that the access request message received by the receivingmodule 31 of the core management network element in this embodiment carries CSG usage indication information, and the judging module 32 uses the CSG usage indication information according to the CSG usage indication information. It is determined whether the UE requesting to access the target cell uses the CSG function.

本实施例中判断模块32根据接入请求消息中携带的CSG使用指示信息，确定请求接入目标小区的UE是否使用CSG功能，若是，则获取模块33从CSG管理服务器中获取CSG签约信息，使得核心管理网元在UE支持CSG功能时，获取模块33从CSG管理服务器中获取CSG签约信息，降低了核心管理网元与CSG管理服务器之间的信令负荷，提高了核心管理网元和CSG管理服务器的信息处理效率。In this embodiment, the judging module 32 determines whether the UE requesting to access the target cell uses the CSG function according to the CSG usage indication information carried in the access request message, and if so, the obtainingmodule 33 obtains the CSG subscription information from the CSG management server, so that When the core management network element supports the CSG function in the UE, the obtainingmodule 33 obtains the CSG subscription information from the CSG management server, which reduces the signaling load between the core management network element and the CSG management server, and improves the core management network element and CSG management. Information processing efficiency of the server.

本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above-mentioned method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.