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Route area updating method between SGSNs

A routing area and update request technology, applied in the field of wireless communication, can solve the problems of low update success rate index, failure to satisfy mobile operators, and affect mobile operators' satisfaction with communication equipment, etc.

Active Publication Date: 2009-06-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In areas with poor wireless signal coverage, the existing implementation of inter-SGSN routing area update makes the success rate index of inter-SGSN routing area update low, which cannot meet the requirements of mobile operators and affects mobile operators' satisfaction with communication equipment.

Method used

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  • Route area updating method between SGSNs
  • Route area updating method between SGSNs

Examples

Experimental program
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Embodiment Construction

[0041] According to the provisions of the agreement, the new SGSN that receives the routing area update request message of the mobile user needs to obtain the routing area update information of the mobile user from the old SGSN side of the mobile user, such as the international mobile subscriber identity code, discontinuous reception parameters, network Capability parameters, etc., to continue the process of inter-SGSN routing area update. However, in the actual communication system, due to many reasons, the new SGSN is often unable to obtain the routing area update information of the mobile user from the old SGSN side, resulting in the failure of the inter-SGSN routing area update process of the mobile user, and the mobile user needs to attach through the attach process On the new SGSN, as stipulated in the 3GPP protocol, after receiving the RAU Reject message whose cause value is "Implicitly Detached", the mobile user re-initiates the attach process to attach to the new SGSN....

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Abstract

The present invention provides a method for updating the routing area between SGSNs, the core of which is: the new SGSN that receives the routing area update request message of the mobile user obtains the routing area update information of the mobile user from the mobile user side, and according to the obtained information Perform inter-SGSN routing area update. In the process of routing area update between SGSNs initiated by a mobile user, when the new SGSN cannot obtain the routing area update information of the mobile user from the old SGSN side according to the protocol, the invention can complete the mobile user's operation by obtaining the routing area update information from the mobile user side. The inter-SGSN routing area update; thereby achieving the purpose of improving the success rate of inter-SGSN routing area update and improving mobile operators' satisfaction with network equipment.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method for updating routing areas between SGSNs. Background technique [0002] SGSN (Serving GPRS Support Node) is the core device in the packet domain of GPRS / UMTS (General Packet Radio Service / Universal Mobile Telecommunications System). The position of SGSN in the mobile communication network is as follows: figure 1 shown. [0003] SGSN mainly completes the routing and forwarding of packet data packets, authentication and encryption, session management, mobility management, logical link management, bill generation and output and other functions. [0004] After the mobile user successfully attaches to the SGSN, in order to regularly update the MM (mobility management) context and maintain the consistency between the mobile user and the state in the network, the mobile user needs to start the periodic routing area update timer regularly, and in the periodic rou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/06H04W8/08H04W36/12
Inventor 周丹明毛豪辉
Owner HUAWEI TECH CO LTD
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