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为了防止非法个人或团体通过监听无线路径上的信令交换而窃得移动用户真实的用户识别码(IMSI,International Mobile Subscriber Identification Number)或跟踪移动用户的位置,现在大多数交换机都开启了临时识别码(TMSI,Temporary Mobile Subscriber Identity)寻呼。而为了降低网络信令负荷,交换机可以将鉴权功能有选择性的打开。当TMSI寻呼和选择性鉴权同时打开时,有可能会造成用户的使用问题。这里主要讨论了TMSI寻呼和选择性鉴权的基本原理,并且根据在现网维护中遇到的用户投诉和河南部分交换机的设置分析二者同时打开时对网络的影响。
In order to prevent illegal individuals or groups from stealing the IMSI (International Mobile Subscriber Identification Number) or tracking the location of mobile users by monitoring the signaling exchange on the wireless path, most of the switches now have a temporary identity (TMSI, Temporary Mobile Subscriber Identity) page. In order to reduce the network signaling load, the switch can selectively open the authentication function. When TMSI paging and selective authentication are turned on at the same time, it may cause user’s usage problem. Here mainly discusses the basic principles of TMSI paging and selective authentication, and according to the user complaints encountered in the maintenance of the current network and the settings of some switches in Henan to analyze the two when the network opens simultaneously.