WO2010108396A1 - Load redistribution system and method - Google Patents
Load redistribution system and method Download PDFInfo
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- WO2010108396A1 WO2010108396A1 PCT/CN2010/070331 CN2010070331W WO2010108396A1 WO 2010108396 A1 WO2010108396 A1 WO 2010108396A1 CN 2010070331 W CN2010070331 W CN 2010070331W WO 2010108396 A1 WO2010108396 A1 WO 2010108396A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
- H04W28/088—Load balancing or load distribution among core entities
Definitions
- the present invention relates to the field of communications, and in particular, to a load redistribution system and method based on lu Flex technology. Background technique
- a traditional mobile switching center for some reason, such as maintenance and repair, needs to be disconnected from the service, which will cause the ongoing communication service on the switch to be interrupted, and within the time controlled by the mobile switching center during the time of exiting the service. Mobile users cannot conduct communication services.
- 3GPP, 3rd Generation Partnership Project introduced lu Flex technology and load reassignment based on lu Flex technology in its protocol standard 3GPP TS23.236.
- the lu Flex technology supports the connection of a Radio Access Network Node (RAN) to multiple mobile switching centers.
- RAN Radio Access Network Node
- a mobile switching center needs to withdraw from the service for some reason, it can initiate a load redistribution process based on lu Flex technology to ensure the normal implementation of the communication service.
- the load redistribution process of the mobile switching center can be divided into two phases: Phase 1: The time of Phase 1 is twice the periodic location update period. In Phase 1, the mobile switching center no longer processes the new location update request normally. Instead, the mobile user terminal is controlled to send a location update request to the same RAN by assigning a special temporary mobile subscriber identity (TMSI, Temporary Mobile Subscriber Identification) and a location area identification (LAI) in the location update response message.
- TMSI temporary mobile subscriber identity
- LAI location area identification
- Phase 2 of the other mobile switching connections Phase 2 begins after Phase One, in Phase 2, the Mobile Switching Center does not force the ongoing communication service to be interrupted, but waits for its normal termination. But in the mobile exchange The heart will control the mobile user terminal that is communicating by redistributing the special TMSI. When the new communication service is initiated after the current service ends, it will no longer initiate to the mobile switching center, but to other mobiles connected to the same RAN. The exchange center initiated.
- the load of the mobile switching center is offloaded, and this load is borne by other mobile switching centers connected to the same RAN without affecting the communication services provided to the users.
- phase 1 and Phase 2 have a temporal relationship, and Phase 2 must begin after the end of Phase 1.
- the time it takes to load the redistribution process is the sum of the processing times of Phase 1 and Phase 2.
- the load redistribution processing method in the 3GPP protocol needs to be used when the switching center needs emergency maintenance, and the load redistribution process is initiated before the service is withdrawn.
- the time consuming of the load redistribution process may damage the timeliness of maintenance.
- the main object of the present invention is to provide a load redistribution system and method based on Iu Flex technology, which can reduce the time consumed by the load redistribution process.
- a load redistribution system includes a mobile terminal, a radio access network node, a mobile switching center, and a network management system, wherein the mobile terminal is connected to a radio access network node, and the radio access network node is connected to the mobile switching center, and moves.
- the switching center is connected to the network management system, and the mobile switching center controls the mobile terminal by using the radio access network node to provide a communication service to the mobile terminal, where the network management system is configured to initiate a load reassignment request to the mobile switching center;
- the mobile switching center is configured to receive a load re-allocation request from the network management system and set a timer; Transmitting, by the mobile terminal that initiates the request to the mobile switching center, the first control message during the timing of the preset timer; and simultaneously, the mobile terminal that is performing the communication service on the mobile switching center, waiting for the mobile terminal At the end of the service, sending a second control message to the mobile terminal;
- the mobile terminal is configured to initiate, according to the received first control message, a request to another mobile switching center that belongs to a radio access network node with the mobile switching center; according to the received second control message, next time When the request is initiated, a request is initiated to other mobile switching centers that belong to a radio access network node with the mobile switching center.
- the network management system is further configured to send a load re-allocation termination request message to the mobile switching center; and receive a load re-allocation termination response message, indicating that the mobile switching center load re-allocation process has been terminated;
- the mobile switching center is further configured to receive the load re-allocation termination request message, stop the load re-allocation, and send a load re-allocation termination response message to the network management system.
- the mobile switching center is further configured to send a load re-allocation complete message to the network management system when the load redistribution process cannot be continued normally, where the load redistribution complete message includes a load redistribution process failure information and a failure cause;
- the network management system is further configured to receive a load redistribution completion message from the mobile switching center, to indicate that the mobile switching center load redistribution process has failed, and display the failure reason.
- the preset timer has a timing duration that is twice the periodic location update period.
- the first control message is a location update response message including a special temporary mobile subscriber identity
- the first control message is an access response message including a location area identifier
- the second control message includes a special temporary mobile subscriber identity.
- a load redistribution method includes the following steps: The network management system sends a load re-allocation request message to the mobile switching center;
- the mobile switching center receives the load reassignment request and sets a timer.
- the other mobile switching center of the node initiates a request; at the same time, the mobile terminal that is performing the communication service on the mobile switching center sends a second control message to the mobile terminal when the service of the mobile terminal ends, and the mobile terminal receives the second control message according to the received
- the second control message, when the next request is initiated, is directed to other mobile switching centers that belong to a radio access network node with the mobile switching center.
- the preset timer has a timing duration that is twice the periodic location update period.
- the first control message is a location update response message including a special temporary mobile subscriber identity
- the first control message is an access response message including a location area identifier
- the second control message includes a special temporary mobile subscriber identity.
- the method also includes:
- the network management system sends a load re-allocation termination request message to the mobile switching center; the mobile switching center receives the load re-allocation termination request message, stops the load re-allocation, and sends a load re-allocation termination response message to the network management system.
- the method further includes: the network management system displaying that the mobile switching center load redistribution process has been terminated.
- the method further includes:
- the mobile switching center sends a load re-allocation complete message to the network management system, where the load re-allocation complete message includes a load redistribution process failure information and a failure reason.
- the network management system receives the load re-allocation complete message, and the method further includes: the network management system displays that the mobile switching center load redistribution process has failed, and displays a failure reason.
- the present invention is based on the load redistribution system and method of the Iu Flex technology, in the process of performing load redistribution in the mobile switching center, and simultaneously initiating a request to the mobile switching center within a preset timing duration, and The processing of the mobile terminal that is performing the communication service on the mobile switching center reduces the time consumed by the load redistribution process, thereby ensuring the timeliness of the maintenance of the communication network.
- FIG. 1 is a schematic diagram of a load redistribution system based on Iu Flex technology of the present invention
- FIG. 2 is a flow chart of a load redistribution method based on Iu Flex technology of the present invention
- FIG. 3 is a flow chart of an embodiment of a load redistribution method based on Iu Flex technology of the present invention. detailed description
- the load redistribution system of the present invention includes a mobile terminal 11, a radio access network node 12, a mobile switching center 13, and a network management system 14. among them,
- the mobile terminal 11 is connected to the radio access network node 12 via a radio interface, the radio access network node 12 is connected to the mobile switching center 13, and the mobile switching center 13 is connected to the network management system 14.
- the mobile switching center 13 controls the mobile terminal 11 through the radio access network node 12 to provide communication services to mobile users.
- One radio access network node 12 can be associated with multiple mobile switching centers 13 Connected.
- a network management system 14 can be coupled to one or more mobile switching centers 13 for operation and maintenance of the mobile switching center 13. Both the radio access network node 12 and the mobile switching center 13 support the use of Iu Flex technology.
- the network management system 14 is configured to initiate a load reassignment request to the mobile switching center 13.
- the mobile switching center 13 is configured to receive a load reassignment request from the network management system, and set a timer, where the timer duration is twice the periodic location update period; and within the preset timing duration, respectively move to
- the mobile terminal 11 that initiates the location update request and the mobile subscriber access request by the switching center 13 respectively transmits a location update response message and an access response message including special TMSI and LAI information, so that the mobile terminal 11 belongs to the mobile switching center 13
- the other mobile switching center 13 of a radio access network node initiates a request, where the location update response message and the access response message may be collectively referred to as a first control message; and at the same time, a mobile terminal that is performing communication services on the mobile switching center 13 After the service of the mobile terminal 11 ends, the second control message including the special TMSI information is sent to the mobile terminal 11, so that when the mobile terminal 11 initiates the request, it belongs to the wireless exchange with the mobile switching center 13.
- the other mobile switching centers 13 of the ingress node initiate.
- the network management system 14 is further configured to send a load re-allocation termination request message to the mobile switching center 13; and receive a load re-allocation termination response message, indicating that the mobile switching center load re-allocation process has been terminated;
- the mobile switching center 13 is further configured to receive the load re-allocation termination request message, stop the load re-allocation, and send a load re-allocation termination response message to the network management system 14.
- the mobile switching center 13 is further configured to send a load re-allocation completion message to the network management system 14 when the load redistribution process cannot be continued normally, and the load re-allocation complete message includes a load re-allocation process failure information and a failure reason;
- the network management system 14 is further configured to receive the load redistribution completion message from the mobile switching center 13, indicating that the mobile switching center load redistribution process has failed, and display the reason for the failure.
- 2 is a flow chart of a load redistribution method based on Iu Flex technology of the present invention
- FIG. 3 is a flow chart of an embodiment of a load redistribution method based on Iu Flex technology of the present invention. The load redistribution method of the present invention will be described in detail below with reference to the flowcharts of FIGS. 2 and 3.
- Step S1 The network management system sends a load re-allocation request message to the mobile switching center.
- Step S2 The load redistribution process includes: the mobile switching center receives the load redistribution request, and sets a timer whose timing duration is twice the periodic location update period. Transmitting a location update response message and an access response message including special TMSI and LAI information to the mobile terminal that initiates the location update request and the mobile user access request to the mobile switching center respectively within the preset timing duration, so that the mobile terminal And the other mobile switching center that belongs to one radio access network node initiates a request with the mobile switching center; meanwhile, the mobile terminal that is performing the communication service on the mobile switching center waits for the service of the mobile terminal to end, and sends the mobile terminal to the mobile terminal to include The control message of the special TMSI information causes the mobile terminal to switch to another mobile switching center belonging to one radio access network node with the mobile switching center when the mobile terminal initiates the request.
- step S2 if the network management system sends a load reassignment termination request message to the mobile switching center, then
- the mobile switching center receives the load re-allocation termination request message, stops the load re-allocation, and sends a load re-allocation termination response message to the network management system.
- the network management system receives the load re-allocation termination response message, indicating that the mobile switching center load re-allocation process has terminated.
- step S2 if the mobile switching center cannot continue the normal load re-allocation process, the load re-allocation complete message is sent to the network management system, and the load re-allocation complete message includes the load redistribution process failure information and the failure reason.
- the network management system receives the load re-allocation complete message, indicating that the mobile switching center load re-allocation process has failed and displays the reason for the failure.
- the present invention is based on a load redistribution system and method of the Iu Flex technology.
- the mobile terminal that initiates the location update request and the mobile user access request to the mobile switching center within the preset timing duration, and the mobile terminal that is performing the communication service on the mobile switching center are simultaneously performed.
- the processing reduces the time consumed by the load redistribution process, thereby ensuring the timeliness of maintenance of the communication network.
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Abstract
A load redistribution system and method based on the Iu Flex technology are provided in the present invention. During the process of the load redistribution by a mobile switching center, the load redistribution system and method based on the Iu Flex technology of the present invention process a mobile terminal that initiates a request to the mobile switching center within the preset timing period of time and a mobile terminal which is performing a communication service of the mobile switching center simultaneously, and the time consumed by the process of the load redistribution is reduced, and then the timely maintenance for the communication network is ensured.
Description
一种负荷重分配系统和方法 技术领域 Load redistribution system and method
本发明涉及通讯领域， 尤其涉及一种基于 lu Flex技术的负荷重分配系 统和方法。 背景技术 The present invention relates to the field of communications, and in particular, to a load redistribution system and method based on lu Flex technology. Background technique
传统的移动交换中心， 因为某种原因， 如检修维护， 需要退出服务时， 会造成该交换机上正在进行的通讯业务发生中断， 并且在退出服务的时间 内， 该移动交换中心所控制的区域内移动用户无法进行通讯业务。 A traditional mobile switching center, for some reason, such as maintenance and repair, needs to be disconnected from the service, which will cause the ongoing communication service on the switch to be interrupted, and within the time controlled by the mobile switching center during the time of exiting the service. Mobile users cannot conduct communication services.
第三代合作伙伴计划 （ 3GPP, 3rd Generation Partnership Project )组织 在其协议标准 3GPP TS23.236中引入了 lu Flex技术以及基于 lu Flex技术的 负荷重分配功能。 The 3GPP, 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) introduced lu Flex technology and load reassignment based on lu Flex technology in its protocol standard 3GPP TS23.236.
lu Flex技术支持一个无线接入网节点 （RAN, Radio Access Network Node )到多个移动交换中心的连接。 当一个移动交换中心因为某种原因需 要退出服务时， 可以发起基于 lu Flex技术的负荷重分配过程， 以保证通讯 业务的正常实现。 移动交换中心的负荷重分配过程可以分为两个阶段： 阶段一： 阶段一的时间为周期性位置更新周期的两倍， 在阶段一中， 移动交换中心不再正常处理新的位置更新请求， 而是通过在位置更新响应 消息中分配特殊临时移动用户标识 （TMSI, Temporary Mobile Subscriber Identification )和位置区标只 ( LAI, Location Area Identification ) 的方式控 制移动用户终端将位置更新请求发送到与同一 RAN连接的其他移动交换中 阶段二： 阶段二在阶段一结束后开始， 在阶段二中， 移动交换中心不 会强制中断正在进行的通讯业务， 而是等待其正常结束。 但是移动交换中
心会通过重新分配特殊 TMSI的方式，控制正在通讯的移动用户终端，在当 前业务结束后再发起新的通讯业务时， 不再向本移动交换中心发起， 而是 向与同一 RAN连接的其他移动交换中心发起。 The lu Flex technology supports the connection of a Radio Access Network Node (RAN) to multiple mobile switching centers. When a mobile switching center needs to withdraw from the service for some reason, it can initiate a load redistribution process based on lu Flex technology to ensure the normal implementation of the communication service. The load redistribution process of the mobile switching center can be divided into two phases: Phase 1: The time of Phase 1 is twice the periodic location update period. In Phase 1, the mobile switching center no longer processes the new location update request normally. Instead, the mobile user terminal is controlled to send a location update request to the same RAN by assigning a special temporary mobile subscriber identity (TMSI, Temporary Mobile Subscriber Identification) and a location area identification (LAI) in the location update response message. Phase 2 of the other mobile switching connections: Phase 2 begins after Phase One, in Phase 2, the Mobile Switching Center does not force the ongoing communication service to be interrupted, but waits for its normal termination. But in the mobile exchange The heart will control the mobile user terminal that is communicating by redistributing the special TMSI. When the new communication service is initiated after the current service ends, it will no longer initiate to the mobile switching center, but to other mobiles connected to the same RAN. The exchange center initiated.
通过这种方式来卸载该移动交换中心的负荷， 并且这一负荷会由与同 一 RAN连接的其他移动交换中心所承担， 而且不会影响向用户提供的通讯 服务。 In this way, the load of the mobile switching center is offloaded, and this load is borne by other mobile switching centers connected to the same RAN without affecting the communication services provided to the users.
然而， 3GPP协议中的负荷重分配功能还存在着以下的不足： 阶段一和阶段二的处理具有时间上的先后关系， 阶段二必须在阶段一 结束后开始。 负荷重分配过程所需要耗费的时间是阶段一和阶段二处理时 间之和。 However, the load redistribution function in the 3GPP protocol has the following disadvantages: The processing of Phase 1 and Phase 2 has a temporal relationship, and Phase 2 must begin after the end of Phase 1. The time it takes to load the redistribution process is the sum of the processing times of Phase 1 and Phase 2.
由于存在以上问题， 3GPP协议中的负荷重分配处理方法， 需要耗费较 交换中心需要紧急维护时， 在退出服务前发起负荷重分配流程， 负荷重分 配处理的耗时过长可能损害维护的及时性。 发明内容 Due to the above problems, the load redistribution processing method in the 3GPP protocol needs to be used when the switching center needs emergency maintenance, and the load redistribution process is initiated before the service is withdrawn. The time consuming of the load redistribution process may damage the timeliness of maintenance. . Summary of the invention
为解决负荷重分配过程的时间耗费过多的问题， 本发明的主要目的在 于提供一种基于 Iu Flex技术的负荷重分配系统及方法， 能够减少负荷重分 配过程所消耗的时间。 In order to solve the problem of excessive time spent on the load redistribution process, the main object of the present invention is to provide a load redistribution system and method based on Iu Flex technology, which can reduce the time consumed by the load redistribution process.
一种负荷重分配系统， 包括移动终端、 无线接入网节点、 移动交换中 心、 网管系统， 所述移动终端与无线接入网节点相连接， 无线接入网节点 与移动交换中心相连接， 移动交换中心与网管系统相连接， 所述移动交换 中心通过无线接入网节点控制移动终端， 向移动终端提供通讯服务， 所述 网管系统用于向移动交换中心发起负荷重分配请求； A load redistribution system includes a mobile terminal, a radio access network node, a mobile switching center, and a network management system, wherein the mobile terminal is connected to a radio access network node, and the radio access network node is connected to the mobile switching center, and moves. The switching center is connected to the network management system, and the mobile switching center controls the mobile terminal by using the radio access network node to provide a communication service to the mobile terminal, where the network management system is configured to initiate a load reassignment request to the mobile switching center;
所述移动交换中心， 用于接收来自网管系统的负荷重分配请求并设置 定时器；
在所述预设定时器的定时时长内， 对向移动交换中心发起请求的移动 终端发送第一控制消息； 同时， 对正在所述移动交换中心上进行通讯业务 的移动终端， 待该移动终端的业务结束时， 向该移动终端发送第二控制消 息； The mobile switching center is configured to receive a load re-allocation request from the network management system and set a timer; Transmitting, by the mobile terminal that initiates the request to the mobile switching center, the first control message during the timing of the preset timer; and simultaneously, the mobile terminal that is performing the communication service on the mobile switching center, waiting for the mobile terminal At the end of the service, sending a second control message to the mobile terminal;
所述移动终端， 用于根据接收到的第一控制消息， 向与所述移动交换 中心同属于一个无线接入网节点的其它移动交换中心发起请求； 根据接收 到的第二控制消息， 在下次发起请求时， 向与所述移动交换中心同属于一 个无线接入网节点的其它移动交换中心发起请求。 The mobile terminal is configured to initiate, according to the received first control message, a request to another mobile switching center that belongs to a radio access network node with the mobile switching center; according to the received second control message, next time When the request is initiated, a request is initiated to other mobile switching centers that belong to a radio access network node with the mobile switching center.
所述网管系统， 进一步用于向移动交换中心发送负荷重分配终止请求 消息； 接收到负荷重分配终止响应消息， 显示移动交换中心负荷重分配过 程已经终止； The network management system is further configured to send a load re-allocation termination request message to the mobile switching center; and receive a load re-allocation termination response message, indicating that the mobile switching center load re-allocation process has been terminated;
移动交换中心， 进一步用于在接收到负荷重分配终止请求消息， 停止 负荷重分配， 并向网管系统发送负荷重分配终止响应消息。 The mobile switching center is further configured to receive the load re-allocation termination request message, stop the load re-allocation, and send a load re-allocation termination response message to the network management system.
所述移动交换中心， 进一步用于在无法继续正常进行负荷重分配过程 时， 向网管系统发送负荷重分配完成消息， 负荷重分配完成消息包括负荷 重分配过程失败信息以及失败原因； The mobile switching center is further configured to send a load re-allocation complete message to the network management system when the load redistribution process cannot be continued normally, where the load redistribution complete message includes a load redistribution process failure information and a failure cause;
所述网管系统， 进一步用于在接收到来自移动交换中心的负荷重分配 完成消息， 显示移动交换中心负荷重分配过程已经失败， 并显示失败原因。 The network management system is further configured to receive a load redistribution completion message from the mobile switching center, to indicate that the mobile switching center load redistribution process has failed, and display the failure reason.
所述预设定时器的定时时长为周期性位置更新周期的两倍。 The preset timer has a timing duration that is twice the periodic location update period.
当所述移动终端发起的请求为位置更新请求时， 所述第一控制消息为 包含特殊临时移动用户标识的位置更新响应消息； When the request initiated by the mobile terminal is a location update request, the first control message is a location update response message including a special temporary mobile subscriber identity;
当所述移动终端发起的请求为呼叫接入请求时， 所述第一控制消息为 包含位置区标识的接入响应消息； When the request initiated by the mobile terminal is a call access request, the first control message is an access response message including a location area identifier;
所述第二控制消息包含特殊临时移动用户标识。 The second control message includes a special temporary mobile subscriber identity.
一种负荷重分配方法， 包括以下步骤：
网管系统向移动交换中心发送负荷重分配请求消息； A load redistribution method includes the following steps: The network management system sends a load re-allocation request message to the mobile switching center;
移动交换中心接收到负荷重分配请求， 设置定时器， The mobile switching center receives the load reassignment request and sets a timer.
在该预设定时器的定时时长内， 对向移动交换中心发起请求的移动终 端发送第一控制消息， 移动终端根据接收到的第一控制消息向与该移动交 换中心同属于一个无线接入网节点的其它移动交换中心发起请求； 同时， 对正在移动交换中心上进行通讯业务的移动终端， 待该移动终端的业务结 束时， 向该移动终端发送第二控制消息， 移动终端根据接收到的第二控制 消息， 下次发起请求时， 转向与该移动交换中心同属于一个无线接入网节 点的其它移动交换中心。 Transmitting, by the mobile terminal that initiates the request to the mobile switching center, a first control message, and the mobile terminal belongs to the same one of the radio access network as the mobile switching center according to the received first control message. The other mobile switching center of the node initiates a request; at the same time, the mobile terminal that is performing the communication service on the mobile switching center sends a second control message to the mobile terminal when the service of the mobile terminal ends, and the mobile terminal receives the second control message according to the received The second control message, when the next request is initiated, is directed to other mobile switching centers that belong to a radio access network node with the mobile switching center.
所述预设定时器的定时时长为周期性位置更新周期的两倍。 The preset timer has a timing duration that is twice the periodic location update period.
当所述移动终端发起的请求为位置更新请求时， 所述第一控制消息为 包含特殊临时移动用户标识的位置更新响应消息； When the request initiated by the mobile terminal is a location update request, the first control message is a location update response message including a special temporary mobile subscriber identity;
当所述移动终端发起的请求为呼叫接入请求时， 所述第一控制消息为 包含位置区标识的接入响应消息； When the request initiated by the mobile terminal is a call access request, the first control message is an access response message including a location area identifier;
所述第二控制消息包含特殊临时移动用户标识。 The second control message includes a special temporary mobile subscriber identity.
该方法还包括： The method also includes:
所述网管系统向移动交换中心发送负荷重分配终止请求消息； 所述移动交换中心在接收到负荷重分配终止请求消息， 停止负荷重分 配， 并向所述网管系统发送负荷重分配终止响应消息。 The network management system sends a load re-allocation termination request message to the mobile switching center; the mobile switching center receives the load re-allocation termination request message, stops the load re-allocation, and sends a load re-allocation termination response message to the network management system.
所述网管系统接收所述负荷重分配终止响应消息， 该方法还包括： 所述网管系统显示所述移动交换中心负荷重分配过程已经终止。 Receiving, by the network management system, the load re-allocation termination response message, the method further includes: the network management system displaying that the mobile switching center load redistribution process has been terminated.
如果所述移动交换中心无法继续正常进行负荷重分配过程， 该方法还 包括： If the mobile switching center cannot continue the normal load redistribution process, the method further includes:
所述移动交换中心向所述网管系统发送负荷重分配完成消息， 所述负 荷重分配完成消息包括负荷重分配过程失败信息以及失败原因。
所述网管系统接收所述负荷重分配完成消息， 该方法还包括： 所述网管系统显示所述移动交换中心负荷重分配过程已经失败， 并显 示失败原因。 The mobile switching center sends a load re-allocation complete message to the network management system, where the load re-allocation complete message includes a load redistribution process failure information and a failure reason. The network management system receives the load re-allocation complete message, and the method further includes: the network management system displays that the mobile switching center load redistribution process has failed, and displays a failure reason.
与现有技术相比较，本发明基于 Iu Flex技术的负荷重分配系统和方法， 在移动交换中心进行负荷重分配过程中， 同时对在预设定时时长内向移动 交换中心发起请求的移动终端， 以及对移动交换中心上正在进行通讯业务 的移动终端进行处理， 减少了负荷重分配过程所消耗的时间， 进而保证了 对通讯网络的维护的及时性。 Compared with the prior art, the present invention is based on the load redistribution system and method of the Iu Flex technology, in the process of performing load redistribution in the mobile switching center, and simultaneously initiating a request to the mobile switching center within a preset timing duration, and The processing of the mobile terminal that is performing the communication service on the mobile switching center reduces the time consumed by the load redistribution process, thereby ensuring the timeliness of the maintenance of the communication network.
在结合附图阅读本发明实施方式的详细描述后， 本发明的特点和优点 将变得更加清楚。 附图说明 The features and advantages of the present invention will become more apparent from the detailed description of the embodiments. DRAWINGS
图 1是本发明基于 Iu Flex技术的负荷重分配系统的示意图； 1 is a schematic diagram of a load redistribution system based on Iu Flex technology of the present invention;
图 2是本发明基于 Iu Flex技术的负荷重分配方法的流程图； 2 is a flow chart of a load redistribution method based on Iu Flex technology of the present invention;
图 3是本发明基于 Iu Flex技术的负荷重分配方法的实施例的流程图。 具体实施方式 3 is a flow chart of an embodiment of a load redistribution method based on Iu Flex technology of the present invention. detailed description
下面结合附图对本发明基于 Iu Flex技术的负荷重分配系统和方法进行 说明。 The load redistribution system and method based on the Iu Flex technology of the present invention will be described below with reference to the accompanying drawings.
图 1是本发明基于 Iu Flex技术的负荷重分配系统的示意图， 如图 1所 示， 本发明负荷重分配系统包括移动终端 11、 无线接入网节点 12、 移动交 换中心 13和网管系统 14。 其中， 1 is a schematic diagram of a load redistribution system based on the Iu Flex technology of the present invention. As shown in FIG. 1, the load redistribution system of the present invention includes a mobile terminal 11, a radio access network node 12, a mobile switching center 13, and a network management system 14. among them,
移动终端 11与无线接入网节点 12通过无线接口相连接， 无线接入网 节点 12与移动交换中心 13相连接， 移动交换中心 13与网管系统 14相连 接。 移动交换中心 13通过无线接入网节点 12控制移动终端 11 , 向移动用 户提供通讯服务。 一个无线接入网节点 12可以与多个移动交换中心 13相
连接。 一个网管系统 14可以与一个或多个移动交换中心 13连接， 对移动 交换中心 13进行操作和维护。 无线接入网节点 12和移动交换中心 13都支 持使用 Iu Flex技术。 The mobile terminal 11 is connected to the radio access network node 12 via a radio interface, the radio access network node 12 is connected to the mobile switching center 13, and the mobile switching center 13 is connected to the network management system 14. The mobile switching center 13 controls the mobile terminal 11 through the radio access network node 12 to provide communication services to mobile users. One radio access network node 12 can be associated with multiple mobile switching centers 13 Connected. A network management system 14 can be coupled to one or more mobile switching centers 13 for operation and maintenance of the mobile switching center 13. Both the radio access network node 12 and the mobile switching center 13 support the use of Iu Flex technology.
网管系统 14, 用于向移动交换中心 13发起负荷重分配请求。 The network management system 14 is configured to initiate a load reassignment request to the mobile switching center 13.
移动交换中心 13 , 用于接收来自网管系统的负荷重分配请求， 设置一 定时器， 该定时器的定时时长为周期性位置更新周期的两倍； 对在该预设 定时时长内， 分别向移动交换中心 13发起位置更新请求和移动用户接入请 求的移动终端 11 , 分别发送包含特殊 TMSI和 LAI信息的位置更新响应消 息和接入响应消息， 使得移动终端 11向与该移动交换中心 13 同属于一个 无线接入网节点的其它移动交换中心 13发起请求， 这里， 位置更新响应消 息和接入响应消息可以合称为第一控制消息； 同时， 对移动交换中心 13上 正在进行通讯业务的移动终端 11 , 待该移动终端 11的业务结束， 向该移动 终端 11发送包含特殊 TMSI信息的第二控制消息，使得该移动终端 11下次 发起请求时， 向与该移动交换中心 13同属于一个无线接入网节点的其它移 动交换中心 13发起。 The mobile switching center 13 is configured to receive a load reassignment request from the network management system, and set a timer, where the timer duration is twice the periodic location update period; and within the preset timing duration, respectively move to The mobile terminal 11 that initiates the location update request and the mobile subscriber access request by the switching center 13 respectively transmits a location update response message and an access response message including special TMSI and LAI information, so that the mobile terminal 11 belongs to the mobile switching center 13 The other mobile switching center 13 of a radio access network node initiates a request, where the location update response message and the access response message may be collectively referred to as a first control message; and at the same time, a mobile terminal that is performing communication services on the mobile switching center 13 After the service of the mobile terminal 11 ends, the second control message including the special TMSI information is sent to the mobile terminal 11, so that when the mobile terminal 11 initiates the request, it belongs to the wireless exchange with the mobile switching center 13. The other mobile switching centers 13 of the ingress node initiate.
网管系统 14,进一步用于向移动交换中心 13发送负荷重分配终止请求 消息； 接收到负荷重分配终止响应消息， 显示移动交换中心负荷重分配过 程已经终止； The network management system 14 is further configured to send a load re-allocation termination request message to the mobile switching center 13; and receive a load re-allocation termination response message, indicating that the mobile switching center load re-allocation process has been terminated;
移动交换中心 13 , 进一步用于在接收到负荷重分配终止请求消息， 停 止负荷重分配， 并向网管系统 14发送负荷重分配终止响应消息。 The mobile switching center 13 is further configured to receive the load re-allocation termination request message, stop the load re-allocation, and send a load re-allocation termination response message to the network management system 14.
移动交换中心 13 ,进一步用于在无法继续正常进行负荷重分配过程时， 向网管系统 14发送负荷重分配完成消息， 负荷重分配完成消息包括负荷重 分配过程失败信息以及失败原因； The mobile switching center 13 is further configured to send a load re-allocation completion message to the network management system 14 when the load redistribution process cannot be continued normally, and the load re-allocation complete message includes a load re-allocation process failure information and a failure reason;
网管系统 14,进一步用于在接收到来自移动交换中心 13的负荷重分配 完成消息， 显示移动交换中心负荷重分配过程已经失败， 并显示失败原因。
图 2是本发明基于 Iu Flex技术的负荷重分配方法的流程图， 图 3是本 发明基于 Iu Flex技术的负荷重分配方法的实施例的流程图。 下面结合图 2 和图 3的流程图对本发明负荷重分配方法进行详细描述。 The network management system 14 is further configured to receive the load redistribution completion message from the mobile switching center 13, indicating that the mobile switching center load redistribution process has failed, and display the reason for the failure. 2 is a flow chart of a load redistribution method based on Iu Flex technology of the present invention, and FIG. 3 is a flow chart of an embodiment of a load redistribution method based on Iu Flex technology of the present invention. The load redistribution method of the present invention will be described in detail below with reference to the flowcharts of FIGS. 2 and 3.
步骤 S1 : 网管系统向移动交换中心发送负荷重分配请求消息。 Step S1: The network management system sends a load re-allocation request message to the mobile switching center.
步骤 S2: 负荷重分配过程， 包括： 移动交换中心接收到负荷重分配请 求， 设置一定时器， 该定时器的定时时长为周期性位置更新周期的两倍。 对在该预设定时时长内， 分别向移动交换中心发起位置更新请求和移动用 户接入请求的移动终端， 发送包含特殊 TMSI和 LAI信息的位置更新响应 消息和接入响应消息， 使得移动终端向与该移动交换中心同属于一个无线 接入网节点的其它移动交换中心发起请求； 同时， 对移动交换中心上正在 进行通讯业务的移动终端， 待该移动终端的业务结束， 向该移动终端发送 包含特殊 TMSI信息的控制消息，使得该移动终端下次发起请求时，转向与 该移动交换中心同属于一个无线接入网节点的其它移动交换中心。 Step S2: The load redistribution process includes: the mobile switching center receives the load redistribution request, and sets a timer whose timing duration is twice the periodic location update period. Transmitting a location update response message and an access response message including special TMSI and LAI information to the mobile terminal that initiates the location update request and the mobile user access request to the mobile switching center respectively within the preset timing duration, so that the mobile terminal And the other mobile switching center that belongs to one radio access network node initiates a request with the mobile switching center; meanwhile, the mobile terminal that is performing the communication service on the mobile switching center waits for the service of the mobile terminal to end, and sends the mobile terminal to the mobile terminal to include The control message of the special TMSI information causes the mobile terminal to switch to another mobile switching center belonging to one radio access network node with the mobile switching center when the mobile terminal initiates the request.
进一步地， 在步骤 S2中， 如果网管系统向移动交换中心发送负荷重分 配终止请求消息， 那么， Further, in step S2, if the network management system sends a load reassignment termination request message to the mobile switching center, then
移动交换中心在接收到负荷重分配终止请求消息， 停止负荷重分配， 并向网管系统发送负荷重分配终止响应消息。 The mobile switching center receives the load re-allocation termination request message, stops the load re-allocation, and sends a load re-allocation termination response message to the network management system.
网管系统在接收到负荷重分配终止响应消息， 显示移动交换中心负荷 重分配过程已经终止。 The network management system receives the load re-allocation termination response message, indicating that the mobile switching center load re-allocation process has terminated.
进一步地， 在步骤 S2中， 如果移动交换中心无法继续正常进行负荷重 分配过程， 则向网管系统发送负荷重分配完成消息， 负荷重分配完成消息 包括负荷重分配过程失败信息以及失败原因。 Further, in step S2, if the mobile switching center cannot continue the normal load re-allocation process, the load re-allocation complete message is sent to the network management system, and the load re-allocation complete message includes the load redistribution process failure information and the failure reason.
网管系统在接收到负荷重分配完成消息， 显示移动交换中心负荷重分 配过程已经失败， 并显示失败原因。 The network management system receives the load re-allocation complete message, indicating that the mobile switching center load re-allocation process has failed and displays the reason for the failure.
与现有技术相比较，本发明基于 Iu Flex技术的负荷重分配系统和方法，
在移动交换中心进行负荷重分配过程中， 同时对在预设定时时长内向移动 交换中心发起位置更新请求和移动用户接入请求的移动终端， 以及对移动 交换中心上正在进行通讯业务的移动终端进行处理， 减少了负荷重分配过 程所消耗的时间， 进而保证了对通讯网络的维护的及时性。 Compared with the prior art, the present invention is based on a load redistribution system and method of the Iu Flex technology, During the load redistribution process in the mobile switching center, the mobile terminal that initiates the location update request and the mobile user access request to the mobile switching center within the preset timing duration, and the mobile terminal that is performing the communication service on the mobile switching center are simultaneously performed. The processing reduces the time consumed by the load redistribution process, thereby ensuring the timeliness of maintenance of the communication network.
以上仅为本发明的优选实施案例而已， 并不用于限制本发明， 对于本 领域的技术人员来说， 本发明可以有各种更改和变化。 凡在本发明的精神 和原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明的 保护范围之内。
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.
Claims
1、 一种负荷重分配系统， 包括移动终端、 无线接入网节点、 移动交换 中心、 网管系统， 所述移动终端与无线接入网节点相连接， 无线接入网节 点与移动交换中心相连接， 移动交换中心与网管系统相连接， 所述移动交 换中心通过无线接入网节点控制移动终端， 向移动终端提供通讯服务， 所 述网管系统用于向移动交换中心发起负荷重分配请求； 其特征在于， A load redistribution system, comprising a mobile terminal, a radio access network node, a mobile switching center, and a network management system, wherein the mobile terminal is connected to a radio access network node, and the radio access network node is connected to the mobile switching center. The mobile switching center is connected to the network management system, and the mobile switching center controls the mobile terminal by using the radio access network node to provide a communication service to the mobile terminal, where the network management system is configured to initiate a load redistribution request to the mobile switching center; Yes,
所述移动交换中心， 用于接收来自网管系统的负荷重分配请求并设置 定时器； The mobile switching center is configured to receive a load re-allocation request from the network management system and set a timer;
在所述预设定时器的定时时长内， 对向移动交换中心发起请求的移动 终端发送第一控制消息； 同时， 对正在所述移动交换中心上进行通讯业务 的移动终端， 待该移动终端的业务结束时， 向该移动终端发送第二控制消 息； Transmitting, by the mobile terminal that initiates the request to the mobile switching center, the first control message during the timing of the preset timer; and simultaneously, the mobile terminal that is performing the communication service on the mobile switching center, waiting for the mobile terminal At the end of the service, sending a second control message to the mobile terminal;
所述移动终端， 用于根据接收到的第一控制消息， 向与所述移动交换 中心同属于一个无线接入网节点的其它移动交换中心发起请求； 根据接收 到的第二控制消息， 在下次发起请求时， 向与所述移动交换中心同属于一 个无线接入网节点的其它移动交换中心发起请求。 The mobile terminal is configured to initiate, according to the received first control message, a request to another mobile switching center that belongs to a radio access network node with the mobile switching center; according to the received second control message, next time When the request is initiated, a request is initiated to other mobile switching centers that belong to a radio access network node with the mobile switching center.
2、 根据权利要求 1所述的负荷重分配系统， 其特征在于， 2. The load redistribution system of claim 1 wherein:
所述网管系统， 进一步用于向移动交换中心发送负荷重分配终止请求 消息； 接收到负荷重分配终止响应消息， 显示移动交换中心负荷重分配过 程已经终止； The network management system is further configured to send a load re-allocation termination request message to the mobile switching center; and receive a load re-allocation termination response message, indicating that the mobile switching center load re-allocation process has been terminated;
移动交换中心， 进一步用于在接收到负荷重分配终止请求消息， 停止 负荷重分配， 并向网管系统发送负荷重分配终止响应消息。 The mobile switching center is further configured to receive the load re-allocation termination request message, stop the load re-allocation, and send a load re-allocation termination response message to the network management system.
3、 根据权利要求 1所述的负荷重分配系统， 其特征在于， 3. The load redistribution system of claim 1 wherein:
所述移动交换中心， 进一步用于在无法继续正常进行负荷重分配过程 时， 向网管系统发送负荷重分配完成消息， 负荷重分配完成消息包括负荷
重分配过程失败信息以及失败原因； The mobile switching center is further configured to send a load re-allocation complete message to the network management system when the load redistribution process cannot be continued normally, and the load redistribution completion message includes a load. Redistribution process failure information and reason for failure;
所述网管系统， 进一步用于在接收到来自移动交换中心的负荷重分配 完成消息， 显示移动交换中心负荷重分配过程已经失败， 并显示失败原因。 The network management system is further configured to receive a load redistribution completion message from the mobile switching center, to indicate that the mobile switching center load redistribution process has failed, and display the failure reason.
4、 根据权利要求 1~3任一项所述的负荷重分配系统， 其特征在于， 所 述预设定时器的定时时长为周期性位置更新周期的两倍。 The load redistribution system according to any one of claims 1 to 3, wherein the preset timer has a timing duration that is twice the periodic location update period.
5、 根据权利要求 1~3任一项所述的负荷重分配系统， 其特征在于， 当 所述移动终端发起的请求为位置更新请求时， 所述第一控制消息为包含特 殊临时移动用户标识的位置更新响应消息； The load redistribution system according to any one of claims 1 to 3, wherein, when the request initiated by the mobile terminal is a location update request, the first control message includes a special temporary mobile user identifier. Location update response message;
当所述移动终端发起的请求为呼叫接入请求时， 所述第一控制消息为 包含位置区标识的接入响应消息； When the request initiated by the mobile terminal is a call access request, the first control message is an access response message including a location area identifier;
所述第二控制消息包含特殊临时移动用户标识。 The second control message includes a special temporary mobile subscriber identity.
6、 一种负荷重分配方法， 其特征在于， 包括以下步骤： 6. A load redistribution method, comprising the steps of:
网管系统向移动交换中心发送负荷重分配请求消息； The network management system sends a load re-allocation request message to the mobile switching center;
移动交换中心接收到负荷重分配请求， 设置定时器， The mobile switching center receives the load reassignment request and sets a timer.
在该预设定时器的定时时长内， 对向移动交换中心发起请求的移动终 端发送第一控制消息， 移动终端根据接收到的第一控制消息向与该移动交 换中心同属于一个无线接入网节点的其它移动交换中心发起请求； 同时， 对正在移动交换中心上进行通讯业务的移动终端， 待该移动终端的业务结 束时， 向该移动终端发送第二控制消息， 移动终端根据接收到的第二控制 消息， 下次发起请求时， 转向与该移动交换中心同属于一个无线接入网节 点的其它移动交换中心。 Transmitting, by the mobile terminal that initiates the request to the mobile switching center, a first control message, and the mobile terminal belongs to the same one of the radio access network as the mobile switching center according to the received first control message. The other mobile switching center of the node initiates a request; at the same time, the mobile terminal that is performing the communication service on the mobile switching center sends a second control message to the mobile terminal when the service of the mobile terminal ends, and the mobile terminal receives the second control message according to the received The second control message, when the next request is initiated, is directed to other mobile switching centers that belong to a radio access network node with the mobile switching center.
7、 根据权利要求 6所述的负荷重分配方法， 其特征在于， 所述预设定 时器的定时时长为周期性位置更新周期的两倍。 7. The load redistribution method according to claim 6, wherein the timing duration of the preset timer is twice the periodic location update period.
8、 根据权利要求 6所述的负荷重分配方法， 其特征在于， 当所述移动 终端发起的请求为位置更新请求时， 所述第一控制消息为包含特殊临时移
动用户标识的位置更新响应消息； The load redistribution method according to claim 6, wherein when the request initiated by the mobile terminal is a location update request, the first control message includes a special temporary shift. a location update response message for the user identity;
当所述移动终端发起的请求为呼叫接入请求时， 所述第一控制消息为 包含位置区标识的接入响应消息； When the request initiated by the mobile terminal is a call access request, the first control message is an access response message including a location area identifier;
所述第二控制消息包含特殊临时移动用户标识。 The second control message includes a special temporary mobile subscriber identity.
9、 根据权利要求 6所述的负荷重分配方法， 其特征在于， 该方法还包 括： 9. The load redistribution method according to claim 6, wherein the method further comprises:
所述网管系统向移动交换中心发送负荷重分配终止请求消息； 所述移动交换中心在接收到负荷重分配终止请求消息， 停止负荷重分 配， 并向所述网管系统发送负荷重分配终止响应消息。 The network management system sends a load re-allocation termination request message to the mobile switching center; the mobile switching center receives the load re-allocation termination request message, stops the load re-allocation, and sends a load re-allocation termination response message to the network management system.
10、 根据权利要求 9所述的负荷重分配方法， 其特征在于， 所述网管 系统接收所述负荷重分配终止响应消息， 该方法还包括： The load redistribution method according to claim 9, wherein the network management system receives the load re-allocation termination response message, the method further comprising:
所述网管系统显示所述移动交换中心负荷重分配过程已经终止。 The network management system displays that the mobile switching center load redistribution process has terminated.
11、 根据权利要求 6所述的负荷重分配方法， 其特征在于， 如果所述 移动交换中心无法继续正常进行负荷重分配过程， 该方法还包括： The load redistribution method according to claim 6, wherein if the mobile switching center is unable to continue the normal load redistribution process, the method further includes:
所述移动交换中心向所述网管系统发送负荷重分配完成消息， 所述负 荷重分配完成消息包括负荷重分配过程失败信息以及失败原因。 The mobile switching center sends a load re-allocation complete message to the network management system, where the load redistribution complete message includes a load redistribution process failure information and a failure cause.
12、 根据权利要求 11所述的负荷重分配方法， 其特征在于， 所述网管 系统接收所述负荷重分配完成消息， 该方法还包括： The load redistribution method according to claim 11, wherein the network management system receives the load re-allocation complete message, the method further includes:
所述网管系统显示所述移动交换中心负荷重分配过程已经失败， 并显 示失败原因。
The network management system displays that the mobile switching center load redistribution process has failed and displays the reason for the failure.
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| CN200910106194A CN101521911A (en) | 2009-03-27 | 2009-03-27 | Load redistribution system and method based on Iu Flex technique |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486096A (en) * | 2002-09-23 | 2004-03-31 | 华为技术有限公司 | Load control method for Iu interface supporting Iu Flex technique |
| CN101166354A (en) * | 2006-10-18 | 2008-04-23 | 中兴通讯股份有限公司 | Load reallocation system and method based on Iu Flex |
| US20080123529A1 (en) * | 2006-11-23 | 2008-05-29 | Cameo Communications, Inc. | Load balancing method for wireless network system |
| CN101521911A (en) * | 2009-03-27 | 2009-09-02 | 中兴通讯股份有限公司 | Load redistribution system and method based on Iu Flex technique |
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| CN1486096A (en) * | 2002-09-23 | 2004-03-31 | 华为技术有限公司 | Load control method for Iu interface supporting Iu Flex technique |
| CN101166354A (en) * | 2006-10-18 | 2008-04-23 | 中兴通讯股份有限公司 | Load reallocation system and method based on Iu Flex |
| US20080123529A1 (en) * | 2006-11-23 | 2008-05-29 | Cameo Communications, Inc. | Load balancing method for wireless network system |
| CN101521911A (en) * | 2009-03-27 | 2009-09-02 | 中兴通讯股份有限公司 | Load redistribution system and method based on Iu Flex technique |
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