WO2007109966A1 - A method for location updating and user home msc handoff and application thereof - Google Patents
A method for location updating and user home msc handoff and application thereof Download PDFInfo
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- WO2007109966A1 WO2007109966A1 PCT/CN2007/000522 CN2007000522W WO2007109966A1 WO 2007109966 A1 WO2007109966 A1 WO 2007109966A1 CN 2007000522 W CN2007000522 W CN 2007000522W WO 2007109966 A1 WO2007109966 A1 WO 2007109966A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/12—Reselecting a serving backbone network switching or routing node
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- the base station controller selects a third mobile switching center from a plurality of mobile switching centers connected thereto as a new mobile switching center to which the user belongs;
- a system for implementing location update comprising a user mobile station and a mobile switching center; wherein the user mobile station is configured to initiate a location update message;
- a system for implementing user-to-mobile switching center handover comprising a user mobile station, a base station controller, a first mobile switching center, and a third mobile switching center;
- FIG. 14 is a schematic structural diagram of another mobile switching center according to an embodiment of the present invention.
- the base station controller checks whether the location update message carries the network resource indication information indicating the user's home mobile switching center, if the check result is If the network resource indication is not carried in the location update message, the BSC may determine that the location update is the first location update of the user mobile station, and the specific processing procedure is as follows:
- this figure is a flow chart of a first embodiment of a method for switching a user-owned mobile switching center of the present invention.
- Step s301 the MS sends a paging response of the TMSI including the NRI, and the BSC finds that the MSC1 pointed to by the TMSI has failed, and then selects an available MSC2 in the A-Flex area according to the local policy, and sends a paging response message thereto;
- Step s402 MSC2 finds that the TMSI is not allocated by itself and originally allocated TMSI.
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Abstract
The present invention comprises a method and system for location updating. The said method mainly includes: user mobile station originating location updating message; MSC responding the said location updating message distributing temporary mobile user identity that contains indicating the said user attribution MSC information to the said user mobile station, completing location updating. The present invention also discloses a method and system for user attributive MSC handoff. The present invention implement the other MSC connected with the BSC may serve for the users in the cover range of the BSC when a MSC connected with the BSC maintains devices, overload or unable to work by increasing the following process: distributing temporary mobile user identity, MSC distributing temporary mobile user identity and BSC selecting MSC according to network resource indication included in temporary mobile user identity.
Description
位置更新及用户归属的移动交换中心切换方法和应用 Location update and user switching mobile switching center switching method and application
本申请要求于 2006 年 3 月 27 日提交中国专利局、 申请号为 200610034734. 7 , 发明名称为 "位置更新及用户归属的移动交换中心切换方 法"的中国专利申请的优先权， 其全部内容通过引用结合在本申请中。 This application claims the priority of the Chinese patent application filed on March 27, 2006, the Chinese Patent Office, the application number is 200610034734. 7 , and the invention name is "location update and user-owned mobile switching center switching method". The citations are incorporated herein by reference.
技术械 Technical equipment
本发明涉及移动通信技术领域， 更具体的说， 本发明涉及一种码分多址 移动通信网络中的位置更新及用户归属的移动交换中心切换方法和应用。 背景技术 The present invention relates to the field of mobile communication technologies, and more particularly to a method and application for location update and user switching of a mobile switching center in a code division multiple access mobile communication network. Background technique
通常在移动通信网络中组网方式是星型的， 例如码分多址移动通信网络 中， 一个基站控制器（Base Station Control, BSC )只能接一个移动交换中心 ( Mobile Switch Center, MSC ),一个 MSC则可以接多个 BSC,如图 1所示， 这种 MSC与 BSC之间 1:N的关系制约了组网的灵活性， 首先， 如果因为用 户容量扩容需要增加一个 MSC节点到现有网络中去， 则必须同时增加至少 一个 BSC设备（即使接入网覆盖和用户处理能力已经足够）， 否则该新增 MSC将无法工作； 另外， 目前 MSC的用户容量越来越大， 当一个 MSC在 停机升级维护， 过载或者发生故障宕机时， 下挂的所有 BSC都将失去作用， 在该 MSC所连的所有 BSC所覆盖的无线范围内的用户都将无法进行电路业 务通信， 对用户的影响非常大， 也是运营商所不能容忍的。 Generally, the networking mode is a star type in a mobile communication network. For example, in a code division multiple access mobile communication network, a base station controller (BSC) can only be connected to a mobile switching center (MSC). An MSC can be connected to multiple BSCs. As shown in Figure 1, the 1:N relationship between the MSC and the BSC restricts the flexibility of the networking. First, if an MSC node needs to be added to the existing capacity expansion due to user capacity expansion. In the network, at least one BSC device must be added at the same time (even if the access network coverage and user processing capability are sufficient), otherwise the newly added MSC will not work; in addition, the current MSC user capacity is getting larger and larger, when an MSC In the event of downtime upgrade maintenance, overload or failure, all the BSCs that are connected will lose their function. Users in the wireless range covered by all BSCs connected to the MSC will not be able to communicate with the circuit services. The impact is very large and it is not tolerated by operators.
发明内容 Summary of the invention
本发明实施例解决的技术问题是提供一种位置更新及用户归属的移动 交换中心切换方法和应用， 以实现在 BSC所连的一个 MSC设备升级维护， 过载或者瘫机后， 在该 MSC所连的所有 BSC所覆盖的无线范围内的用户将 继续进行电路业务通信。 The technical problem to be solved by the embodiment of the present invention is to provide a location update and a mobile switching center switching method and application of the user's attribution, so as to implement an upgrade and maintenance of an MSC device connected to the BSC, after being overloaded or down, connected to the MSC. Users within the wireless range covered by all BSCs will continue to communicate with the circuit business.
为解决上述问题， 本发明实施例的一种位置更新方法， 包括如下步骤： a、 用户移动台发起位置更新消息； To solve the above problem, a location update method according to an embodiment of the present invention includes the following steps: a. A user mobile station initiates a location update message;
b、 响应所述位置更新消息的响应移动交换中心向所述用户移动台分配 临时移动用户标识， 所述临时移动用户标识携带用于指示用户归属的移动交 换中心的信息， 完成位置更新。 b. Responding to the response of the location update message, the mobile switching center allocates a temporary mobile subscriber identity to the user mobile station, the temporary mobile subscriber identity carrying information indicating the mobile switching center to which the subscriber belongs, and completing the location update.
—种用户归属移动交换中心切换方法， 包括如下步骤：
A、 基站控制器确定用户归属的第一移动交换中心不可用， 用户移动台 向所述基站控制器发起位置更新消息； A user-owned mobile switching center switching method includes the following steps: A. The base station controller determines that the first mobile switching center to which the user belongs is unavailable, and the user mobile station initiates a location update message to the base station controller.
B、 所述基站控制器从其连接的多个移动交换中心中选择第三移动交换 中心作为新的用户归属的移动交换中心； B. The base station controller selects a third mobile switching center from a plurality of mobile switching centers connected thereto as a new mobile switching center to which the user belongs;
C、 所述第三移动交换中心向所述用户移动台分配新的临时移动用户标 识， 完成用户归属的移动交换中心的切换。 C. The third mobile switching center allocates a new temporary mobile user identity to the user mobile station, and completes handover of the mobile switching center to which the user belongs.
一种实现位置更新的***， 包括用户移动台和移动交换中心； 其中 所述用户移动台用于发起位置更新消息； A system for implementing location update, comprising a user mobile station and a mobile switching center; wherein the user mobile station is configured to initiate a location update message;
所述用户移动台用于响应所述位置更新消息， 并向所述用户移动台分配 临时移动用户标识， 所述临时移动用户标识携带用于指示用户归属的移动交 换中心的信息。 The user mobile station is configured to respond to the location update message and assign a temporary mobile subscriber identity to the user mobile station, the temporary mobile subscriber identity carrying information indicating a mobile switching center to which the subscriber belongs.
一种实现用户归属移动交换中心切换的***， 包括用户移动台、 基站控 制器、 第一移动交换中心和第三移动交换中心； 其中 A system for implementing user-to-mobile switching center handover, comprising a user mobile station, a base station controller, a first mobile switching center, and a third mobile switching center;
所述基站控制器用于确定用户归属的第一移动交换中心不可用， 并从连 接的多个移动交换中心中选择第三移动交换中心作为新的用户归属的移动 交换中心； The base station controller is configured to determine that the first mobile switching center to which the user belongs is unavailable, and select the third mobile switching center from the plurality of connected mobile switching centers as the mobile switching center to which the new user belongs;
所述用户移动台用于向基站控制器发起位置更新消息； The user mobile station is configured to initiate a location update message to the base station controller;
所述第三移动交换中心用于向所述用户移动台分配新的临时移动用户 标识。 The third mobile switching center is configured to allocate a new temporary mobile subscriber identity to the user mobile station.
一种基站控制器， 包括第一接收单元、 检测单元、 第一控制单元和第一 发送单元， 其中， 所述第一接收单元用于接收并向所述第一控制单元发送位 置更新消息； 所述检测单元根据检测信号， 检测所述位置更新消息中是否携 带指示用户归属的移动交换中心的网络资源指示， 并将检测结果发送给所述 第一控制单元； 所述第一发送单元根据发送信号， 向所述网络资源指示所指 示的移动交换中心或者基于用户的 IMSI路由到的移动交换中心发送位置更 新消息； 所述第一控制单元分别向所述检测单元、 所述第一发送单元发送位 置更新消息， 向所述检测单元发送检测信号； 根据所述检测结果生成所述发 送信号。 A base station controller, comprising: a first receiving unit, a detecting unit, a first control unit, and a first sending unit, wherein the first receiving unit is configured to receive and send a location update message to the first control unit; The detecting unit detects, according to the detection signal, whether the location update message carries a network resource indication indicating the mobile switching center to which the user belongs, and sends the detection result to the first control unit; the first sending unit according to the sending signal Transmitting, by the network switching indicator, the indicated mobile switching center or the mobile switching center routed by the user's IMSI to the mobile switching center; the first control unit sending the location to the detecting unit and the first sending unit respectively Updating a message, transmitting a detection signal to the detecting unit; generating the transmission signal according to the detection result.
一种基站控制器， 包括第二接收单元和第二控制单元， 其中， 所述第二
接收单元用于接收与用户归属的移动交换中心的握手反馈信号、 链路状态信 号或来自网管 O&M***的移动交换中心的可用情况信号， 并将所述握手反 馈信号、 链路状态信号或可用情况信号发送给所述第二控制单元； 所述第二 控制单元根据所述握手反馈信号、 链路状态信号或可用情况信号， 判断所述 用户归属的移动交换中心是否可用。 A base station controller includes a second receiving unit and a second control unit, wherein the second The receiving unit is configured to receive a handshake feedback signal, a link state signal, or an available condition signal from a mobile switching center of the network management O&M system, and transmit the handshake feedback signal, link status signal, or available status. The signal is sent to the second control unit; the second control unit determines whether the mobile switching center to which the user belongs is available according to the handshake feedback signal, the link state signal, or the available condition signal.
一种移动交换中心， 包括第三接收单元、 分配单元和第二发送单元， 其 中， 所述第三接收单元用于接收位置更新消息， 并向所述分配单元发送所述 位置更新消息； 所述分配单元分配临时移动用户标识， 所述临时移动用户标 识携带用于指示用户归属的移动交换中心的信息； 所述第二发送单元向用户 移动台发送所述临时移动用户标识。 A mobile switching center, comprising a third receiving unit, an allocating unit, and a second sending unit, wherein the third receiving unit is configured to receive a location update message, and send the location update message to the allocating unit; The allocating unit allocates a temporary mobile subscriber identity, the temporary mobile subscriber identity carrying information indicating a mobile switching center to which the subscriber belongs; and the second sending unit transmitting the temporary mobile subscriber identity to the user mobile station.
一种移动交换中心， 包括第四接收单元、 第四控制单元、 第二分配单元 和第三发送单元， 其中， 所述第四接收单元用于接收携带临时移动用户标识 的位置更新请求消息、 CM业务请求消息、寻呼响应消息或转发无连接消息， 所述临时移动用户标识用午指向的用户归属的移动交换中心； 所述第四控制 单元判断所述临时移动用户标识不是所述第二分配单元分配， 向所述第二分 配单元发送分配信号； 所述第二分配单元根据所述分配信号， 生成替换的临 时移动用户标识的分配消息； 所述第三发送单元向用户移动台发送所述替换 的临时移动用户标识的分配消息。 A mobile switching center, comprising a fourth receiving unit, a fourth control unit, a second assigning unit, and a third sending unit, wherein the fourth receiving unit is configured to receive a location update request message carrying a temporary mobile user identifier, and a CM a service request message, a page response message, or a forwarding connectionless message, where the temporary mobile subscriber identity is a mobile switching center to which the user pointed by the user belongs; the fourth control unit determines that the temporary mobile subscriber identity is not the second assignment a unit allocation, sending an allocation signal to the second allocating unit; the second allocating unit generates an allocation message of the replacement temporary mobile subscriber identity according to the allocation signal; the third sending unit sends the The assignment message for the replaced temporary mobile user ID.
本发明实施例通过在 A接口增加 TMSI分配流程， MSC在用户位置更 新或业务请求时分配 TMSL在 TMSI中包含 NRI,用于指示用户归属的 MSC, BSC根据消息中 TMSI中所含的 NRI选择 MSC, 从而实现在 BSC所连的一 个 MSC设备升级维护， 过载或者瘫机后， 让其所连的其它可用 MSC可以为 该 BSC所覆盖范围内的用户服务。 The embodiment of the present invention adds a TMSI allocation procedure to the A interface. The MSC allocates a TMSL in the TMSI to indicate the MSC to which the user belongs, and the BSC selects the MSC according to the NRI included in the TMSI in the message. Therefore, after an MSC device connected to the BSC is upgraded and maintained, after overload or downtime, other available MSCs connected thereto can serve users within the coverage of the BSC.
附图说明 DRAWINGS
图 1是现有技术一种码分多址移动通信网络简单组网示意图； 1 is a schematic diagram of a simple networking of a code division multiple access mobile communication network in the prior art;
图 2是本发明实施例中 A-Flex组网示意图； 2 is a schematic diagram of an A-Flex networking in the embodiment of the present invention;
图 3是本发明实施例中采用的 TMSI结构示意图； 3 is a schematic structural diagram of a TMSI used in an embodiment of the present invention;
图 4是本发明实施例中位置更新方法的处理流程示意图； 4 is a schematic flowchart of a process of a location update method in an embodiment of the present invention;
图 5是本发明实施例中用户归属移动交换中心切换方法的、 基站控制器
流程示意图； FIG. 5 is a base station controller of a method for switching a user home mobile switching center according to an embodiment of the present invention; Schematic diagram of the process;
图 6是本发明用户归属移动交换中心切换方法的第一实施例流程图； 图 7是本发明用户归属移动交换中心切换方法的第二实施例流程图； 图 8是本发明用户归属移动交换中心切换方法的第三实施例流程图； 图 9是本发明用户归属移动交换中心切换方法的第四实施例流程图； 图 10是本发明位置更新及用户归属的移动交换中心切换的应用的实施 例的结构示意图； 6 is a flowchart of a first embodiment of a method for switching a user's home mobile switching center according to the present invention; FIG. 7 is a flow chart of a second embodiment of a method for switching a user's home mobile switching center according to the present invention; and FIG. 8 is a user-owned mobile switching center of the present invention. FIG. 9 is a flowchart of a fourth embodiment of a method for switching a user-owned mobile switching center according to the present invention; FIG. 10 is a flowchart of an application of a location update of the present invention and a mobile switching center handover to which a user belongs. Schematic diagram of the structure;
图 11是本发明一实施例中基站控制器的结构示意图； 11 is a schematic structural diagram of a base station controller according to an embodiment of the present invention;
图 12是本发明另一实施例中基站控制器的结构示意图； 12 is a schematic structural diagram of a base station controller according to another embodiment of the present invention;
图 13是本发明实施例中一种移动交换中心的结构示意图； 13 is a schematic structural diagram of a mobile switching center according to an embodiment of the present invention;
图 14是本发明实施例中另一种移动交换中心的结构示意图。 FIG. 14 is a schematic structural diagram of another mobile switching center according to an embodiment of the present invention.
具体实施方式 detailed description
本发明实施例基于 A-Flex机制实现， 在 A-Flex组网中， 一个 BSC能同 时连接多个 MSC, 就能在一个 MSC设备升级维护， 过载或者瘫机后， 让其 所连的其它可用 MSC为该 BSC所覆盖范围内的用户服务。 A-Flex机制可使 得多个 MSC节点之间的负载均衡和负载重新分配成为可能， 能够有效避免 单个节点过载情况的出现。 ， The embodiment of the invention is implemented based on the A-Flex mechanism. In the A-Flex networking, one BSC can connect multiple MSCs at the same time, and after an MSC device is upgraded, maintained, overloaded or down, the other connected devices can be connected. The MSC serves users within the coverage of the BSC. The A-Flex mechanism makes load balancing and load reallocation between multiple MSC nodes possible, effectively avoiding the overload of a single node. ,
A-Flex组网如图 2所示， 其中池的范围由多个 BSC的无线覆盖范围組 成， 该多个 BSC被池中所有 MSC (至少两个）共同服务。 池可以理解为一 个逻辑的概念， 本质上由 BSC上的路由机制决定， 可以看到池中每个 BSC 都和池中所有 MSC相连， 可以在所有 MSC中间任意选择。 The A-Flex networking is shown in Figure 2, where the range of the pool consists of the wireless coverage of multiple BSCs, which are served by all MSCs (at least two) in the pool. A pool can be understood as a logical concept. It is essentially determined by the routing mechanism on the BSC. It can be seen that each BSC in the pool is connected to all MSCs in the pool and can be arbitrarily selected among all MSCs.
综上， 上述组网具有如下特点： In summary, the above networking has the following characteristics:
1. )一个 BSC可以接多个 MSC。 1.) A BSC can connect to multiple MSCs.
2. )正常情况下， BSC基于用户的标识以一定的算法决定核心网的路由， 用户在池内漫游时不改变归属的 MSC。 2.) Under normal circumstances, the BSC determines the route of the core network based on the user's identity with a certain algorithm. The user does not change the home MSC when roaming in the pool.
3. )一个 MSC故障时， BSC改变算法， 确定到可用路径的新路由。 3.) When an MSC fails, the BSC changes the algorithm to determine a new route to the available path.
本发明实施例中为实现 A-Flex, 在 A接口增加 TMSI分配流程， MSC在用 户位置更新或业务请求时分配临时移动用户标识 （ Temporary Mobile Subscriber Identities, TMSI ), 如图 3所示， 本发明实施例中在 TMSI中包含网
络资源指示（ Network Resource Indicator, NR1 )， 用于指示用户归属的 MSC, NRI表示一个唯一的核心网节点， 是 BSC寻址核心网节点的地址信息， RI 与核心网节点之间的对应关系， 在池内所有 BSC中统一配置。 NRI长度的规 划在网络规划初期一步到位， 可以预留 NRI节点资源为后续扩容。 In the embodiment of the present invention, in order to implement A-Flex, a TMSI allocation process is added to the A interface, and the MSC allocates a Temporary Mobile Subscriber Identities (TMSI) when the user is updated or a service request, as shown in FIG. In the embodiment, the network is included in the TMSI Network Resource Indicator (NR1), used to indicate the MSC to which the user belongs, NRI represents a unique core network node, is the address information of the BSC addressing core network node, and the correspondence between the RI and the core network node. Unified configuration in all BSCs in the pool. The NRI length planning can be reserved in the initial stage of network planning. The NRI node resources can be reserved for subsequent expansion.
移动终端（Mobile Station, MS )在 TMSI有效期间， 在上发消息时携带 The mobile terminal (MS) carries the message when the message is valid during the TMSI period.
MSC分配的 TMSI， BSC根据 TMSI中的 NRI选择 MSC, 只有在 MS没有 携带 TMSI而是携带 IMSI ( International Mobile Subscriber Identity, 国际移动 台标识） 的时候， 才使用基于 IMSI的路由算法选择 MSC, 本发明实施例通 过 TMSI在 A-Flex网络中的使用能够方便在整个业务过程中将消息路由到同 一个 MSC。 The MSC allocated by the MSC, the BSC selects the MSC according to the NRI in the TMSI, and selects the MSC using the IMSI-based routing algorithm only when the MS does not carry the TMSI but carries the IMSI (International Mobile Subscriber Identity). The use of TMSI in the A-Flex network facilitates routing of messages to the same MSC throughout the service process.
下面结合图 4说明本发明实施例分配 TMSI的位置更新流程。 The location update procedure for allocating TMSI in the embodiment of the present invention will be described below with reference to FIG.
本发明中终端用户移动台 MS是支持 TMSI流程的， 当用户移动台发起 位置更新后， 响应该位置更新的移动交换中心向该用户移动台分配包含指示 该用户归属移动交换中心信息的 TMSI, 完成位置更新。 In the present invention, the terminal user mobile station MS supports the TMSI process. After the user mobile station initiates the location update, the mobile switching center responding to the location update allocates a TMSI indicating the user's home mobile switching center information to the mobile switching center. Location update.
具体实现时， 用户移动台通过基站控制器向移动交换中心发送位置更新 消息后， 基站控制器检查所述位置更新消息中是否携带有指示该用户归属移 动交换中心的网络资源指示信息， 若检查结果为位置更新消息中未携带网絡 资源指示， 则 BSC可判定本次位置更新为用户移动台的第一次位置更新，具 体处理流程如下： ' In a specific implementation, after the user mobile station sends the location update message to the mobile switching center by using the base station controller, the base station controller checks whether the location update message carries the network resource indication information indicating the user's home mobile switching center, if the check result is If the network resource indication is not carried in the location update message, the BSC may determine that the location update is the first location update of the user mobile station, and the specific processing procedure is as follows:
基站控制器根据用户移动台的 IMSI进行路由选择其归属的 MSC, 向该 The base station controller routes the MSC to which it belongs according to the IMSI of the user mobile station, to the
MSC发送位置更新消息， 该 MSC则向用户移动台发送 TMSI分配消息， 所 述 TMSI分配消息中包含指示该用户归属的移动交换中心的 NRI, 用户移动 台则向所述 MSC返回 TMSI分配完成消息， NRI指示的 MSC返回用户移动 台位置更新完成消息； 若检查结果为所述位置更新消息中携带 NRI, 则 BSC 可判定本次位置更新为移动台的后续位置更新， 具体处理流程如下： The MSC sends a location update message, and the MSC sends a TMSI allocation message to the user mobile station, where the TMSI allocation message includes an NRI indicating the mobile switching center to which the user belongs, and the user mobile station returns a TMSI allocation complete message to the MSC. The MSC indicated by the NRI returns a user mobile station location update complete message; if the check result is that the location update message carries the NRI, the BSC may determine that the location update is a subsequent location update of the mobile station, and the specific processing procedure is as follows:
BSC向 N I指示的 MSC发送位置更新消息， NRI指示的 MSC向用户 移动台返回 TMSI分配指示信息， TMSI分配指示信息中包含指示该用户归 属的 MSC的 NRI, 用户移动台则向 MSC返回 TMSI分配完成消息， NRI指 示的 MSC返回用户移动台位置更新完成消息。
基于上述位置更新流程，本发明实施例中在用户归属的 MSC不可用（例 如故障或超负荷等） 时， 还可实现用户归属 MSC的切换。 The BSC sends a location update message to the MSC indicated by the NI, and the MSC indicated by the NRI returns TMSI allocation indication information to the user mobile station. The TMSI allocation indication information includes an NRI indicating the MSC to which the user belongs, and the user mobile station returns the TMSI allocation to the MSC. The message, the MSC indicated by the NRI returns a user mobile station location update complete message. Based on the location update process, in the embodiment of the present invention, when the MSC to which the user belongs is unavailable (for example, a fault or an overload, etc.), the handover of the user home MSC may also be implemented.
参考图 11 , 该图是本实施例中 BSC的结构示意图， 包括第一接收单元 11、 检测单元 12、 第一控制单元 13和第一发送单元 14, 第一接收单元接收 并向第一控制单元发送位置更新消息； 检测单元根据检测信号， 检测位置更 新消息中是否携带指示用户归属的移动交换中心的网络资源指示， 并将检测 结果发送给第一控制单元； 第一发送单元根据发送信号， 向网络资源指示所 指示的移动交换中心或者基于用户的 IMSI路由到的移动交换中心发送位置 更新消息；第一控制单元分别向检测单元、第一发送单元发送位置更新消息， 向检测单元发送检测信号， 并根据所述检测结果生成所述发送信号。 Referring to FIG. 11, the figure is a schematic structural diagram of a BSC in this embodiment, including a first receiving unit 11, a detecting unit 12, a first control unit 13, and a first sending unit 14, and the first receiving unit receives and directs to the first control unit. Sending a location update message; the detecting unit detects, according to the detection signal, whether the location update message carries a network resource indication indicating the mobile switching center to which the user belongs, and sends the detection result to the first control unit; the first sending unit sends a signal according to the sending signal The network resource indicates that the indicated mobile switching center or the mobile switching center that is routed based on the IMSI of the user sends a location update message; the first control unit sends a location update message to the detecting unit and the first sending unit, respectively, and sends a detection signal to the detecting unit. And generating the transmission signal according to the detection result.
参考图 5,该图是用户归属移动交换中心切换方法的实施例主要流程图， 具体主要包括以下流程： Referring to FIG. 5, which is a main flowchart of an embodiment of a method for a user to switch to a mobile switching center, the following mainly includes the following processes:
步驟 11 , 基站控制器确定用户归属的移动交换中心不可用， 具体可通过 下述方式确定用户归属的移动交换中心不可用： Step 11: The base station controller determines that the mobile switching center to which the user belongs is unavailable, and specifically determines that the mobile switching center to which the user belongs is unavailable in the following manner:
基站控制器与用户归属的移动交换中心建立握手， 当握手失败时确定用 户归属的移动交换中心不可用； 或 The base station controller establishes a handshake with the mobile switching center to which the user belongs, and determines that the mobile switching center to which the user belongs is unavailable when the handshake fails; or
基站控制器判断与用户归属的移动交换中心之间的链路状态， 当所有链 路故障， 移动交换中心信令点不可达时确定用户归属的移动交换中心不可 用； 或 The base station controller determines the link state between the mobile switching center to which the user belongs, and determines that the mobile switching center to which the user belongs is unavailable when all the links are faulty and the mobile switching center signaling point is unreachable; or
网管 O&M***通知基站控制器用户归属的移动交换中心不可用。 The network management O&M system notifies the base station controller that the mobile switching center to which the user belongs is not available.
参考图 12， 该图是本实施例中基站控制器的结构示意图， 包括第二接收 单元 21和第二控制单元 22, 其中， 第二接收单元接收与用户归属的移动交 换中心的握手反馈信号、 链路状态信号或来自网管 0&M***的用户归属的 移动交换中心的可用情况信号， 并将握手反馈信号、 链路状态信号或可用情 况信号发送给第二控制单元； 第二控制单元根据握手反馈信号、 链路状态信 号或可用情况信号， 判断用户归属的移动交换中心是否可用。 Referring to FIG. 12, which is a schematic structural diagram of a base station controller in this embodiment, including a second receiving unit 21 and a second control unit 22, where the second receiving unit receives a handshake feedback signal with a mobile switching center to which the user belongs, a link state signal or an available condition signal of the mobile switching center from which the user of the network management system is located, and sends a handshake feedback signal, a link state signal, or an available condition signal to the second control unit; the second control unit according to the handshake feedback signal The link status signal or the available status signal determines whether the mobile switching center to which the user belongs is available.
步骤 12, 该用户移动台发起位置更新。 Step 12: The user mobile station initiates a location update.
步骤 13 ,基站控制器从其连接的多个移动交换中心中选择一个移动交换 中心作为该用户归属的移动交换中心， 可按照下述方式从其连接的移动交换
中心中选择一个移动交换中心作为该用户归属的移动交换中心： Step 13: The base station controller selects one mobile switching center from the plurality of mobile switching centers connected thereto as the mobile switching center to which the user belongs, and can connect from the mobile switching in the following manner. Select a mobile switching center in the center as the mobile switching center to which the user belongs:
基站控制器从其连接的多个正常工作的移动交换中心中随机选择一 个； 或 The base station controller randomly selects one of a plurality of normally operating mobile switching centers connected thereto; or
基站控制器从其连接的多个正常工作的移动交换中心中选择一个负荷 最轻的。 The base station controller selects one of the lightest loads from among the plurality of normally functioning mobile switching centers to which it is connected.
步骤 14,基站控制器选择的移动交换中心向该用户移动台分配包含指示 用户归属于该选择的移动交换中心信息的 TMSI, 切换为该用户归属的移动 交换中心。 Step 14. The mobile switching center selected by the base station controller allocates to the user mobile station a TMSI including information indicating that the user belongs to the selected mobile switching center, and switches to the mobile switching center to which the user belongs.
下面以具体的实施例进行说明。 The following is a description of specific embodiments.
参考图 6, 该图是本发明用户归属移动交换中心切换方法的第一实施例 流程图。 Referring to Figure 6, this figure is a flow chart of a first embodiment of a method for switching a user-owned mobile switching center of the present invention.
本实施例中当一个 MSC故障后， 属于这个 MSC的用户发起位置登记， BSC把这个用户的位置登记消息路由到池内一个正常的 MSC， MSC在收到 携带 TMSI的位置登记消息， 当判断当前用户需要重新位置登记， 返回携带 TMSI和 TMSI过期时间，用其中所含的 TMSI或 TMSI过期时间指示手机删 除当前 TMSI,用户移动台重新发起位置登记时就可以注册到新的 MSC上了， 具体主要包括以下步骤： In this embodiment, when an MSC fails, the user belonging to the MSC initiates location registration, and the BSC routes the location registration message of the user to a normal MSC in the pool, and the MSC receives the location registration message carrying the TMSI, and determines the current user. Re-location registration is required, and the TMSI and TMSI expiration time are returned. The TMSI or TMSI expiration time is included to indicate that the mobile phone deletes the current TMSI. When the mobile station re-initiates the location registration, the mobile station can register to the new MSC. The following steps:
步驟 slOl , 用户移动台 MS使用包含 NRI的 TMSI进行位置登记， BSC 发现该 TMSI指向的 MSC1已经发生故障，则根据本地策略任选 A-Flex区域 中一个可用的 MSC2, 向其发送位置更新请求消息； Step s101, the user mobile station MS performs location registration using the TMSI including the NRI, and the BSC finds that the MSC1 pointed to by the TMSI has failed, and then sends an address update request message to an available MSC2 in the A-Flex area according to the local policy. ;
步骤 sl02， MSC2发现该用户的 TMSI不是自己分配， 则下发 TMSI分 配消息，其中所带 TMSI置为全 1或者将 TMSI过期时间置为当前***时间； 步 sl03, MS收到消息后删除本地保存的 TMSI, 返回分配完成消息， 并通过 BSC转发到 MSC2; In step s102, the MSC2 finds that the TMSI of the user is not allocated by itself, and then sends a TMSI allocation message, where the TMSI is set to all 1 or the TMSI expiration time is set to the current system time; in step s03, the MS deletes the local save after receiving the message. TMSI, return allocation completion message, and forwarded to MSC2 through BSC;
步驟 sl04, MSC2返回位置登记拒绝消息； Step sl04, MSC2 returns a location registration reject message;
步骤 sl05, MS发起携带 IMSI的位置登记流程， BSC根据 IMSI和本地 配置的路由选择数据配置信息选定 A-Flex区域中一个 MSC, 如 MSC3并向 其发送位置更新请求消息； Step sl05, the MS initiates a location registration process carrying the IMSI, and the BSC selects an MSC in the A-Flex area, such as the MSC3, according to the IMSI and the locally configured routing configuration information, and sends a location update request message thereto;
步骤 sl06， MSC3为 MS分配一个 TMSI, 其中含有在该 A-Flex区域中
唯一标识该 MSC3的 NRI信息， BSC将该 TMSI信息通过 TMSI分配消息下 发给 MS; Step s106, MSC3 allocates a TMSI to the MS, which is included in the A-Flex area. Uniquely identifying the NRI information of the MSC3, the BSC sends the TMSI information to the MS through the TMSI allocation message;
步骤 sl07, MS保存收到的 TMSI, TMSI— ZONE, TMSI过期时间等， 并返回 TMSI分配完成消息， 并通过 BSC转发到 MSC3; Step sl07, the MS saves the received TMSI, TMSI_ZONE, TMSI expiration time, etc., and returns a TMSI allocation complete message, and forwards it to the MSC3 through the BSC;
步骤 sl08, MSC3返回位置更新接受消息。 Step sl08, MSC3 returns a location update accept message.
参考图 7,该图是用户归属移动交换中心切换方法的第二实施例流程图。 本实施例中当一个 MSC故障后， 属于这个 MSC的用户发起连接管理 CM业务请求， BSC f巴这个用户的连接管理 CM业务请求消息路由到池内一 个正常的 MSC， MSC在收到携带 TMSI的连接管理 CM业务请求消息， 当 判断原来分配 TMSI的 MSC故障时， 返回携带 TMSI和 TMSI过期时间， 用 其中所含的 TMSI或 TMSI过期时间指示用户移动台删除当前 TMSI,拒绝本 次呼叫， 在用户后续位置登记（包括进行业务时的隐含位置登记） 的时候， 就可以注册到新的 MSC进行处理， 具体主要包括以下步骤： Referring to FIG. 7, this figure is a flow chart of a second embodiment of a method for a user to move to a mobile switching center. In this embodiment, when an MSC fails, the user belonging to the MSC initiates a connection management CM service request, and the connection management CM service request message of the BSC f-bar is routed to a normal MSC in the pool, and the MSC receives the connection carrying the TMSI. The CM service request message is managed. When it is determined that the MSC that originally allocated the TMSI is faulty, the MSI and TMSI expiration time are returned, and the MSI or TMSI expiration time included therein is used to indicate that the user mobile station deletes the current TMSI, and the current call is rejected. When the location registration (including the implicit location registration when doing business), it can be registered to the new MSC for processing, which mainly includes the following steps:
步骤 s201 , MS使用含 NRI的 TMSI进行始呼， BSC发现该 TMSI指向 的 MSC1 已经故障， 则根据本地策略选择 A-Flex区域中一个可用的 MSC2, 向其发送 CM业务请求消息； Step s201, the MS uses the TMSI with the NRI to perform the initial call, and the BSC finds that the MSC1 pointed to by the TMSI has failed, and then selects an available MSC2 in the A-Flex area according to the local policy, and sends a CM service request message thereto;
步骤 s202, MSC2发现该 TMSI不是自己分配而且原来分配 TMSI的 MSC1已经发生故障； Step s202, MSC2 finds that the TMSI is not allocated by itself and the MSC1 that originally allocated the TMSI has failed;
步骤 s203 , MSC2下发 TMSI分配消息， 其中所带 TMSI置为全 1或者 将 TMSI过期时间置为当前***时间； Step s203: The MSC2 sends a TMSI allocation message, where the TMSI is set to all 1 or the TMSI expiration time is set to the current system time.
步骤 s204, MS收到消息后删除本地保存的 TMSI, 返回 TMSI分配完成 消息， 并通过 BSC转发到 MSC2; Step s204, after receiving the message, the MS deletes the locally saved TMSI, returns a TMSI allocation complete message, and forwards the message to the MSC2 through the BSC;
步驟 s205, MSC2返回连接拒绝消息。 Step s205, the MSC2 returns a connection reject message.
步骤 s206, 后续 MS进行位置登记或者进行业务时隐含位置登记到新的 MSC3; Step s206, the subsequent MS performs location registration or implicitly registers the location to the new MSC3 when performing the service;
之后， 用户已经将正确位置登记到 MSC3并分配 TMSI, 执行后续流程。 参考图 8, 该图是本发明用户归属移动交换中心切换方法的第三实施例 流程图。 After that, the user has registered the correct location to MSC3 and assigned TMSI to perform the subsequent process. Referring to Figure 8, there is shown a flow chart of a third embodiment of the method for switching a user-owned mobile switching center of the present invention.
本实施例中当一个 MSC故障后，属于这个 MSC的用户返回寻呼响应消
息， BSC把这个用户的寻呼响应消息路由到池内一个正常的 MSC， MSC在 收到携带 TMSI的寻呼响应消息， 当判断原来分配 TMSI的 MSC故障时，返 回携带 TMSI和 TMSI过期时间， 用其中所含的 TMSI或 TMSI过期时间指 示手机删除当前 TMSI， 拒绝本次呼叫， 在用户后续位置登记（包括进行业 务时的隐含位置登记） 的时候， 就可以注册到新的 MSC进行处理， 具体主 要包括以下步骤： In this embodiment, when an MSC fails, the user belonging to the MSC returns a paging response cancellation. The BSC routes the paging response message of the user to a normal MSC in the pool. The MSC receives the paging response message carrying the TMSI. When it determines that the MSC that originally allocated the TMSI is faulty, it returns to carry the TMSI and TMSI expiration time. The TMSI or TMSI expiration time included in the mobile phone indicates that the mobile phone deletes the current TMSI, rejects the current call, and registers with the new MSC for processing when the user subsequently registers (including the implicit location registration when performing the service). It mainly includes the following steps:
步驟 s301 , MS上发包含 NRI的 TMSI的寻呼响应， BSC发现该 TMSI 指向的 MSC1 已经故障， 则根据本地策略选择 A-Flex 区域中一个可用的 MSC2, 向其发送寻呼响应消息； Step s301, the MS sends a paging response of the TMSI including the NRI, and the BSC finds that the MSC1 pointed to by the TMSI has failed, and then selects an available MSC2 in the A-Flex area according to the local policy, and sends a paging response message thereto;
步驟 s302, MSC2发现该 TMSI不是自己分配而且原来分配 TMSI的 Step s302, MSC2 finds that the TMSI is not allocated by itself and originally allocated TMSI.
MSC1已经发生故障； MSC1 has failed;
步骤 s303 , MSC2下发 TMSI分配消息， 其中所带 TMSI置为全 1或者 将 TMSI过期时间置为当前***时间； Step s303, the MSC2 sends a TMSI allocation message, where the TMSI is set to all 1 or the TMSI expiration time is set to the current system time;
步骤 s304， MS收到消息后删除本机保存的 TMSI, 返回 TMSI分配完成 消息， 并通过 BSC转发到 MSC2; Step s304, after receiving the message, the MS deletes the TMSI saved by the local machine, returns a TMSI allocation complete message, and forwards the message to the MSC2 through the BSC;
步骤 s305, MSC2返回连接拒绝消息。 Step s305, the MSC2 returns a connection reject message.
步骤 s306， 后续 MS进行位置登记或者进行业务时隐含位置登记到新的 MSC3; Step s306, the subsequent MS performs location registration or performs location registration to the new MSC3 when performing the service;
之后， 用户已经正确位置登记到 MSC3并分配 TMSI, 执行后续流程。 参考图 13 , 该图是本实施例中 MSC1或 MSC3的结构示意图， 包括第 三接收单元 31、 分配单元 32和第二发送单元 33 , 其中， 第三接收单元接收 位置更新消息， 并向分配单元发送位置更新消息； 分配单元分配临时移动用 户标识， 临时移动用户标识携带用于指示用户归属的移动交换中心的信息； 第二发送单元向用户移动台发送所述临时移动用户标识。 After that, the user has registered the correct location to the MSC3 and assigned the TMSI to perform the subsequent process. Referring to FIG. 13, the figure is a schematic structural diagram of the MSC1 or the MSC3 in this embodiment, including a third receiving unit 31, an allocating unit 32, and a second sending unit 33, wherein the third receiving unit receives the location update message and sends the location update message to the allocation unit. Sending a location update message; the allocating unit assigns a temporary mobile subscriber identity, the temporary mobile subscriber identity carrying information indicating a mobile switching center to which the subscriber belongs; and the second sending unit transmitting the temporary mobile subscriber identity to the user mobile station.
参考图 14,该图是本实施例中 MSC2的结构示意图， 包括第四接收单元 Referring to FIG. 14, this figure is a schematic structural diagram of an MSC2 in this embodiment, including a fourth receiving unit.
41、 第四控制单元 42、 第二分配单元 43和第三发送单元 44, 其中， 第四接 收单元接收携带临时移动用户标识的位置更新请求消息、 CM业务请求消息、 寻呼响应消息或转发无连接消息， 临时移动用户标识用于指向的用户归属的 移动交换中心； 第四控制单元判断临时移动用户标识不是第二分配单元分
配， 向第二分配单元发送分配信号； 第二分配单元根据分配信号， 生成替换 的临时移动用户标识的分配消息； 第三发送单元向用户移动台发送替换的临 时移动用户标识的分配消息。 41. The fourth control unit 42, the second allocating unit 43, and the third sending unit 44, where the fourth receiving unit receives the location update request message, the CM service request message, the paging response message, or the forwarding without the temporary mobile user identifier. a connection message, the temporary mobile subscriber identity is used to point to the mobile switching center to which the user belongs; the fourth control unit determines that the temporary mobile subscriber identity is not the second allocation unit And transmitting, to the second allocating unit, the allocation signal; the second allocating unit generates an allocation message of the replacement temporary mobile subscriber identity according to the allocation signal; and the third sending unit sends the allocation message of the replaced temporary mobile subscriber identity to the user mobile station.
参考图 9, 该图是本发明用户归属移动交换中心切换方法的第四实施例 流程图。 Referring to Figure 9, there is shown a flow chart of a fourth embodiment of the method for switching a user-owned mobile switching center of the present invention.
本实施例中以无连接消息传送为例进行说明， 具体主要包括以下步驟： 步驟 s401 , MS上发包含 N I的 TMSI的接入信道短消息发送消息， BSC 发现该 TMSI指向的 MSC1已经故障，则根据本地策略任选 A-Flex区域中一 个可用的 MSC2, 向其发送 ADDS Transfer消息； In this embodiment, the connectionless message transmission is taken as an example. Specifically, the method includes the following steps: Step s401: The MS sends an access channel short message sending message including the TMSI of the NI, and the BSC finds that the MSC1 pointed to by the TMSI has failed. Sending an ADDS Transfer message to an available MSC2 in the A-Flex area according to the local policy;
步骤 s402, MSC2发现该 TMSI不是自己分配而且原来分配 TMSI的 Step s402, MSC2 finds that the TMSI is not allocated by itself and originally allocated TMSI.
MSC1已经发生故障； MSC1 has failed;
步骤 s403 , MSC2下发 TMSI分配消息， 其中所带 TMSI置为全 1或者 将 TMSI过期时间置为当前***时间； Step s403, the MSC2 sends a TMSI allocation message, where the TMSI is set to all 1 or the TMSI expiration time is set to the current system time;
步骤 s404, MS收到消息后删除本地保存的 TMSI, 返回 TMSI分配完成 消息， 并通过 BSC转发到 MSC2; Step s404, after receiving the message, the MS deletes the locally saved TMSI, returns a TMSI allocation complete message, and forwards the message to the MSC2 through the BSC;
步骤 s405, 后续 MS进行位置登记或者进行业务时隐含位置登记到新的 MSC3 o Step s405, the subsequent MS performs location registration or implicitly registers the location to the new MSC3 when performing the service.
需要说明的， 上述本实施例中 MSC3可以和 MSC2是同一个 MSC。 参见图 10, 相应的提供一种实现位置更新的***， 包括用户移动台 11、 两个或两个以上的移动交换中心 21-2N、 基站控制器 31-3N; 其中用户移动 台向基站控制器发起位置更新消息； 基站控制器转发用户移动台与两个或两 个以上的移动交换中心中的用户归属的移动交换中心或者基于用户的 IMSI 路由到的移动交换中心之间的信息； 用户归属的移动交换中心或者基于用户 的 IMSI路由到的移动交换中心向用户移动台分配临时移动用户标识， 临时 移动用户标识携带指示用户归属的移动交换中心的信息。 It should be noted that, in the foregoing embodiment, the MSC3 may be the same MSC as the MSC2. Referring to FIG. 10, a system for implementing location update is provided, including a user mobile station 11, two or more mobile switching centers 21-2N, and a base station controller 31-3N; wherein the user mobile station is directed to the base station controller Initiating a location update message; the base station controller forwards information between the user mobile station and a mobile switching center to which the user of the two or more mobile switching centers belongs or the mobile switching center to which the user's IMSI is routed; The mobile switching center or the mobile switching center routed based on the user's IMSI allocates a temporary mobile subscriber identity to the subscriber mobile station, and the temporary mobile subscriber identity carries information indicating the mobile switching center to which the subscriber belongs.
参见图 10, 还提供一种实现用户归属移动交换中心切换的***， 包括用 户移动台 11、 两个或两个以上的移动交换中心 21-2N、 基站控制器 31-3N; 其中， 用户移动台向基站控制器发起消息； 基站控制器转发用户移动台与两 个或两个以上的移动交换中心中的用户归属的移动交换中心或者基于用户
的 IMSI路由到的移动交换中心之间的信息， 还确定用户归属的移动交换中 心是否可用； 用户归属的移动交换中心或者基于用户的 IMSI路由到的移动 交换中心向用户移动台分配临时移动用户标识， 临时移动用户标识携带了指 示用户归属的移动交换中心的信息。 Referring to FIG. 10, a system for implementing user-home mobile switching center handover is further provided, including a user mobile station 11, two or more mobile switching centers 21-2N, and a base station controller 31-3N; wherein, the user mobile station Initiating a message to the base station controller; the base station controller forwarding the mobile switching center to which the user mobile station belongs to the user in the two or more mobile switching centers or based on the user The information between the mobile switching center to which the IMSI is routed also determines whether the mobile switching center to which the user belongs is available; the mobile switching center to which the user belongs or the mobile switching center to which the user's IMSI is routed assigns the temporary mobile user identity to the user mobile station The temporary mobile subscriber identity carries information indicating the mobile switching center to which the subscriber belongs.
综上， 本发明实施例可以实现一个 BSC和多个 MSC相连接， 当一个 MSC故障时， 业务不受影响； 还可以实现多个 MSC资源共享， 负荷分担； 提高了网络的安全性， 优化了网络的资源配置。
In summary, the embodiment of the present invention can implement a connection between a BSC and multiple MSCs. When an MSC fails, services are not affected. Multiple MSC resource sharing and load sharing can also be implemented. The network security is improved and optimized. Resource configuration of the network.
Claims
1、 一种位置更新方法， 其特征在于， 包括如下步骤： A method for updating a location, comprising the steps of:
a、 用户移动台发起位置更新消息； a, the user mobile station initiates a location update message;
b、 响应所述位置更新消息的响应移动交换中心向所述用户移动台分配 临时移动用户标识， 所述临时移动用户标识携带用于指示用户归属的移动交 换中心的信息， 完成位置更新。 b. Responding to the response of the location update message, the mobile switching center allocates a temporary mobile subscriber identity to the user mobile station, the temporary mobile subscriber identity carrying information indicating the mobile switching center to which the subscriber belongs, and completing the location update.
2、 根据权利要求 1 所述的位置更新方法， 其特征在于， 所述用于指示 用户归属的移动交换中心的信息为网络资源指示。 The location update method according to claim 1, wherein the information indicating the mobile switching center to which the user belongs is a network resource indication.
3、根据权利要求 2所述的位置更新方法， 其特征在于， 所述步骤 a包括 如下步骤： The location update method according to claim 2, wherein the step a comprises the following steps:
al、 所述用户移动台向基站控制器发送所述位置更新消息； Al, the user mobile station sends the location update message to the base station controller;
a2、 所述基站控制器检测所述位置更新消息中是否携带有指示用户归属 的移动交换中心的网络资源指示， 若检查结果为是， 则向所述网络资源指示 所指示的移动交换中心发送位置更新消息， 所述网络资源指示所指示的移动 交换中心为所述响应移动交换中心； 否则， 向基于用户的 IMSI路由到的移 动交换中心发送位置更新消息， 所述基于用户的 IMSI路由到的移动交换中 心为所述响应移动交换中心。 A2, the base station controller detects whether the location update message carries a network resource indication indicating a mobile switching center to which the user belongs, and if the check result is yes, instructs the mobile switching center to send the location to the network resource indication Updating a message, the network resource indicating that the indicated mobile switching center is the responding mobile switching center; otherwise, transmitting a location update message to the mobile switching center to which the user-based IMSI is routed, the user-based IMSI-routed mobile The switching center is the responding mobile switching center.
4、 根据权利要求 2或 3所述的位置更新方法， 其特征在于， 所述步骤 b 包括如下步驟： The location update method according to claim 2 or 3, wherein the step b comprises the following steps:
bl、 所述响应移动交换中心向所述用户移动台返回临时移动用户标识的 分配消息； Bl, the responding mobile switching center returns an allocation message of the temporary mobile subscriber identity to the user mobile station;
b2、 所述用户移动台向所述响应移动交换中心返回临时移动用户标识的 分配完成消息； B2, the user mobile station returns an allocation complete message of the temporary mobile user identity to the responding mobile switching center;
b3、 所述响应移动交换中心向所述用户移动台返回位置更新完成消息。 B3. The responding mobile switching center returns a location update complete message to the user mobile station.
5、 一种用户归属移动交换中心切换方法， 其特征在于， 包括如下步驟：A user-to-mobile switching center switching method, characterized in that the method comprises the following steps:
A、 基站控制器确定用户归属的第一移动交换中心不可用， 用户移动台 向所述基站控制器发起位置更新消息； A. The base station controller determines that the first mobile switching center to which the user belongs is unavailable, and the user mobile station initiates a location update message to the base station controller.
B、 所述基站控制器从连接的多个移动交换中心中选择第三移动交换中 心作为新的用户归属的移动交换中心；
C、 所述第三移动交换中心向所述用户移动台分配新的临时移动用户标 识， 完成用户归属的移动交换中心的切换。 B. The base station controller selects a third mobile switching center from a plurality of connected mobile switching centers as a new mobile switching center to which the user belongs; C. The third mobile switching center allocates a new temporary mobile subscriber identity to the user mobile station, and completes handover of the mobile switching center to which the user belongs.
6、 根据权利要求 5 所述的用户归属移动交换中心切换方法， 其特征在 于， 所述用户移动台向所述基站控制器发起位置更新消息之前还包括： 所述用户移动台使用含网络资源指示的临时移动用户标识向所述基站 控制器进行位置登记、 始呼、 上发寻呼响应或无连接消息， 所述临时移动用 户标识指向的用户归属的移动交换中心为第一移动交换中心。 The user-to-home mobile switching center switching method according to claim 5, wherein before the user mobile station initiates a location update message to the base station controller, the method further includes: the user mobile station uses a network resource indication The temporary mobile subscriber identity performs location registration, initial call, paging response or no connection message to the base station controller, and the mobile switching center to which the user pointed to by the temporary mobile subscriber identity belongs is the first mobile switching center.
7、 才 据权利 5或 6所述的用户归属移动交换中心切换方法， 其特征在 于， 基站控制器确定用户归属的第一移动交换中心不可用之后、 用户移动台 向所述基站控制器发起位置更新消息之前还包括： 7. The user-owned mobile switching center handover method according to claim 5 or 6, wherein the base station controller determines that the first mobile switching center to which the user belongs is unavailable, and the user mobile station initiates a location to the base station controller. Before updating the message, it also includes:
所述基站控制器才艮据本地策略从其连接的移动交换中心中选择可用的 第二移动交换中心， 向所述第二移动交换中心发送携带临时移动用户标识的 相关消息， 所述临时移动用户标识指向的用户归属的移动交换中心为第一移 动交换中心； And the base station controller selects an available second mobile switching center from the mobile switching centers connected thereto according to the local policy, and sends a related message carrying the temporary mobile user identity to the second mobile switching center, where the temporary mobile user The mobile switching center to which the identified user belongs is the first mobile switching center;
所述第二移动交换中心发现所述临时移动用户标识不是自己分配， 则向 所述用户移动台下发替换的临时移动用户标识的分配消息； And the second mobile switching center discovers that the temporary mobile subscriber identity is not an assignment by itself, and sends an allocation message of the replaced temporary mobile subscriber identity to the user mobile station;
所述用户移动台删除本地保存的所述临时移动用户标识。 The user mobile station deletes the temporary mobile user identity saved locally.
8、 根据权利要求 Ί 所述的用户归属移动交换中心切换方法， 其特征在 于， 所述携带临时移动用户标识的相关消息包括位置更新请求消息、 CM业 务请求消息、 寻呼响应消息或转发无连接消息。 The user-owned mobile switching center handover method according to claim ,, wherein the related message carrying the temporary mobile subscriber identity comprises a location update request message, a CM service request message, a paging response message, or a forwarding no connection. Message.
9、 根据权利要求 5或 6所述的用户归属移动交换中心切换方法， 其特 征在于，所述步骤 A中所述基站控制器通过下述方式确定所述用户归属的移 动交换中心不可用： The user-owned mobile switching center switching method according to claim 5 or 6, wherein the base station controller in the step A determines that the mobile switching center to which the user belongs is unavailable in the following manner:
所述基站控制器与所述笫一移动交换中心建立握手 , 当握手失败时确定 所述第一移动交换中心不可用； 或 The base station controller establishes a handshake with the first mobile switching center, and determines that the first mobile switching center is unavailable when the handshake fails; or
所述基站控制器判断与所述第一移动交换中心之间的链路状态， 当所有 链路故障， 移动交换中心信令点不可达时确定所述第一移动交换中心不可 用； 或 Determining, by the base station controller, a link state with the first mobile switching center, determining that the first mobile switching center is unavailable when all links fail and the mobile switching center signaling point is unreachable; or
网管 O&M***向所述基站控制器通知所述第一移动交换中心不可用。
The network management O&M system notifies the base station controller that the first mobile switching center is unavailable.
10、 根据权利要求 5或 6所述的用户归属移动交换中心切换方法， 其特 征在于， 所述步驟 B中所述基站控制器按照下述方式从其连接的移动交换中 心中选择第三移动交换中心作为新的用户归属的移动交换中心： The user-owned mobile switching center switching method according to claim 5 or 6, wherein the base station controller in the step B selects a third mobile switching from the mobile switching centers connected thereto according to the following manner. The center acts as a mobile switching center to which new users belong:
所述基站控制器从其连接的多个正常工作的移动交换中心中随机选择 一个作为新的用户归属的移动交换中心； 或 The base station controller randomly selects one of a plurality of normally operating mobile switching centers connected thereto as a mobile switching center to which the new user belongs; or
所述基站控制器从其连接的多个正常工作的移动交换中心中选择一个 负荷最轻的作为新的用户归属的移动交换中心。 The base station controller selects one of the plurality of normally operating mobile switching centers to which it is connected to be the lightest mobile switching center to which the new subscriber belongs.
11、 根据权利要求 5或 6所述的用户归属移动交换中心切换方法， 其特 征在于， 所述步骤 C包括如下步驟： The user-owned mobile switching center switching method according to claim 5 or 6, wherein the step C comprises the following steps:
所述第三移动交换中心向所述用户移动台返回携带网络资源指示的新 的临时移动用户标识的分配消息； The third mobile switching center returns an allocation message of the new temporary mobile subscriber identity indicating the network resource indication to the user mobile station;
所述用户移动台向所述第三移动交换中心返回所述新的临时移动用户 标识的分配完成消息； Returning, by the user mobile station, the allocation completion message of the new temporary mobile subscriber identity to the third mobile switching center;
所述第三移动交换中心向所述用户移动台返回位置更新完成消息。 The third mobile switching center returns a location update complete message to the user mobile station.
12、 一种实现位置更新的***， 其特征在于， 包括用户移动台和移动交 换中心； 其中' 12. A system for implementing location update, comprising: a user mobile station and a mobile switching center; wherein
所述用户移动台用于发起位置更新消息； The user mobile station is configured to initiate a location update message;
所述用户移动台用于响应所述位置更新消息， 并向所述用户移动台分配 临时移动用户标识， 所述临时移动用户标识携带用于指示用户归属的移动交 换中心的信息。 The user mobile station is configured to respond to the location update message and assign a temporary mobile subscriber identity to the user mobile station, the temporary mobile subscriber identity carrying information indicating a mobile switching center to which the subscriber belongs.
13、 根据权利要求 12所述的***， 其特征在于， 还包括基站控制器， 所述用户移动台向所述基站控制器发送所述位置更新消息； 所述基站控制器 检测所述位置更新消息中是否携带指示用户归属的移动交换中心的网络资 源指示， 并才艮据检测结果向所述网络资源指示所指示的移动交换中心或基于 用户的 IMSI路由到的移动交换中心发送位置更新消息； 所述网络资源指示 所指示的移动交换中心或基于用户的 IMSI路由到的移动交换中心用于响应 所述位置更新消息。 13. The system according to claim 12, further comprising a base station controller, said user mobile station transmitting said location update message to said base station controller; said base station controller detecting said location update message Whether the network resource indication indicating the mobile switching center to which the user belongs is carried, and the location update message is sent to the mobile switching center indicated by the network resource indication or the mobile switching center routed by the user's IMSI according to the detection result; The mobile switching center indicated by the network resource indication or the mobile switching center to which the user-based IMSI is routed is used to respond to the location update message.
14、 一种实现用户归属移动交换中心切换的***， 其特征在于， 包括用 户移动台、 基站控制器、 第一移动交换中心和第三移动交换中心； 其中
所述基站控制器用于确定用户归属的第一移动交换中心不可用 , 并从连 接的多个移动交换中心中选择第三移动交换中心作为新的用户归属的移动 交换中心； 14. A system for implementing user-to-mobile switching center handover, comprising: a user mobile station, a base station controller, a first mobile switching center, and a third mobile switching center; The base station controller is configured to determine that the first mobile switching center to which the user belongs is unavailable, and select the third mobile switching center from the connected multiple mobile switching centers as the mobile switching center to which the new user belongs;
所述用户移动台用于向基站控制器发起位置更新消息； The user mobile station is configured to initiate a location update message to the base station controller;
所述第三移动交换中心用于向所述用户移动台分配新的临时移动用户 标识。 The third mobile switching center is configured to allocate a new temporary mobile subscriber identity to the user mobile station.
15、 根据权利要求 14所述的***， 其特征在于， 还包括第二移动交换 中心， 所述第二移动交换中心用于接收来自所述基站控制器的携带临时移动 用户标识的相关消息， 并向所述用户移动台发送替换的临时移动用户标识的 分配消息， 所述临时移动用户标识指向的用户归属的移动交换中心为第一移 动交换中心。 The system according to claim 14, further comprising a second mobile switching center, wherein the second mobile switching center is configured to receive a related message carrying the temporary mobile subscriber identity from the base station controller, and Sending, by the user mobile station, an allocation message of the replacement temporary mobile subscriber identity, where the mobile switching center to which the subscriber pointed by the temporary mobile subscriber identity belongs is the first mobile switching center.
16、 一种基站控制器， 其特征在于， 包括第一接收单元、 检测单元、 第 一控制单元和第一发送单元， 其中， A base station controller, comprising: a first receiving unit, a detecting unit, a first control unit, and a first transmitting unit, where
所述第一接收单元用于接收并向所述第一控制单元发送位置更新消息； 所述检测单元根据检测信号， 检测所述位置更新消息中是否携带指示用 户归属的移动交换中心的网络资源指示， 并将检测结果发送给所述第一控制 单元； The first receiving unit is configured to receive and send a location update message to the first control unit, where the detecting unit detects, according to the detection signal, whether the location update message carries a network resource indication indicating a mobile switching center to which the user belongs. And sending the detection result to the first control unit;
所述第一发送单元根据发送信号， 向所述网络资源指示所指示的移动交 换中心或者基于用户的 IMSI路由到的移动交换中心发送位置更新消息； 所述第一控制单元分別向所述检测单元、 所述第一发送单元发送位置更 新消息， 向所述检测单元发送检测信号； 根据所述检测结果生成所述发送信 Transmitting, by the first sending unit, a location update message to the indicated mobile switching center or the mobile switching center routed by the IMSI of the user according to the sending signal; the first control unit respectively to the detecting unit The first sending unit sends a location update message, and sends a detection signal to the detecting unit; generating the sending letter according to the detection result.
17、 一种基站控制器，其特征在于， 包括第二接收单元和第二控制单元， 其中， A base station controller, comprising: a second receiving unit and a second control unit, wherein
所述第二接收单元用于接收与用户归属的移动交换中心的握手反馈信 号、 链路状态信号或来自网管 0&Μ***的移动交换中心的可用情况信号， 并将所述握手反馈信号、 链路状态信号或可用情况信号发送给所述第二控制 单元； The second receiving unit is configured to receive a handshake feedback signal, a link state signal, or an available condition signal of a mobile switching center from the network management system, and the handshake feedback signal and the link state. Sending a signal or an available condition signal to the second control unit;
所述第二控制单元根据所述握手反馈信号、 链路状态信号或可用情况信
号， 判断所述用户归属的移动交换中心是否可用。 The second control unit is configured according to the handshake feedback signal, a link status signal, or an available status message. No., determining whether the mobile switching center to which the user belongs is available.
18、 一种移动交换中心， 其特征在于， 包括第三接收单元、 分配单元和 第二发送单元， 其中， A mobile switching center, comprising: a third receiving unit, an allocating unit, and a second sending unit, wherein
所述第三接收单元用于接收位置更新消息， 并向所述分配单元发送所述 位置更新消息； The third receiving unit is configured to receive a location update message, and send the location update message to the allocating unit;
所述分配单元分配临时移动用户标识， 所述临时移动用户标识携带用于 指示用户归属的移动交换中心的信息； The allocating unit allocates a temporary mobile subscriber identity, where the temporary mobile subscriber identity carries information for indicating a mobile switching center to which the subscriber belongs;
所述第二发送单元向用户移动台发送所述临时移动用户标识。 The second sending unit sends the temporary mobile user identity to the user mobile station.
19、 一种移动交换中心， 其特征在于， 包括第四接收单元、 第四控制单 元、 第二分配单元和第三发送单元， 其中， A mobile switching center, comprising: a fourth receiving unit, a fourth control unit, a second allocating unit, and a third transmitting unit, wherein
所述第四接收单元用于接收携带临时移动用户标识的位置更新请求消 息、 CM业务请求消息、 寻呼响应消息或转发无连接消息， 所述临时移动用 户标识用于指向的用户归属的移动交换中心； The fourth receiving unit is configured to receive a location update request message, a CM service request message, a paging response message, or a forwarding connectionless message that carries the temporary mobile user identifier, where the temporary mobile user identifier is used for the mobile exchange to which the user belongs. Center
所述第四控制单元判断所述临时移动用户标识不是所述第二分配单元 分配， 向所述第二分配单元发送分配信号； The fourth control unit determines that the temporary mobile subscriber identity is not the second allocation unit assignment, and sends an allocation signal to the second allocation unit;
所述第二分配单元根据所述分配信号 , 生成替换的临时移动用户标识的 分配消息； The second allocating unit generates an allocation message of the replaced temporary mobile subscriber identity according to the allocation signal;
所述第三发送单元向用户移动台发送所述替换的临时移动用户标识的 分配消息。
The third transmitting unit transmits an allocation message of the replaced temporary mobile subscriber identity to the user mobile station.
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| CNB2006100347347A CN100446622C (en) | 2006-03-27 | 2006-03-27 | Moving exchanging center switching method of location updating and user imputing |
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