3G 蜂窝网络中GLR 故障恢复分析

在3G蜂窝网络中,归属位置寄存器(HLR)、网关位置寄存器(GLR)、访问位置寄存器(VLR)组成三级数据库结构。当漫游移动用户在GLR中的位置信息错误或过时时,对该用户的入呼将失败。由于三层结构设计中,GLR与HLR的通信一般涉及国际长途信令,使得GLR的故障恢复设计非常重要。为尽可能减少对长途资源的占有,对GLR故障恢复提出了一种新的算法并对其性能作了相应的分析。

Analysis of GLR recovery in 3G cellular networks

In a 3G cellular network,the home location registers(HLR),the gateway location registers(GLR) and the visitor location registers(VLR) form a three-level location database architecture.When the location information of a roaming user in a GLR is incorrect or obsolete,the incoming calls before recovery will be lost.Since the communication between GLR and HLR usually involve with international signaling,the recovery design of GLR is a very important issue.In order to reduce international signaling,it proposes a new algorithm and present corresponding performance analysis.