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    • 1. 发明授权
    • Communication method and system for selecting public land mobile network
    • 选择公共陆地移动网络的通信方式和系统
    • US07251472B2
    • 2007-07-31
    • US10766725
    • 2004-01-27
    • Kwang-Hae ChoiYang-Sun Kim
    • Kwang-Hae ChoiYang-Sun Kim
    • H04M1/66
    • H04W48/18H04W8/04H04W52/0225H04W60/00Y02D70/1222Y02D70/1224
    • Disclosed is a communication system for selecting a PLMN (Public Land Mobile Network). In the communication system, an MS (Mobile Station) transmits an MIN (Mobile Identification Number) message, an ESN (Electronic Serial Number) message and a location update request signal containing location information such that the MS's location can be registered, and searches for the PLMN on the basis of an HPLMN search period value corresponding to the location update request signal. An MSC (Mobile Switching Center) performs an authentication procedure for the MS transmitting the location update request signal, and extracts the location information from the location update request signal. A VLR (Visitor Location Register) stores subscriber data of the MS provided from outside the MS and registers a location of the MS. An HLR (Home Location Register) updates the location information of the MS extracted from the MSC, variably sets a search period value at a time of searching for an HPLMN or higher-priority PLMN on the basis of the location information of the MS, and transmits the set search period value to the MS.
    • 公开了一种用于选择PLMN(公共陆地移动网络)的通信系统。 在通信系统中,MS(移动站)发送MIN(移动识别码)消息,ESN(电子序列号)消息和包含位置信息的位置更新请求信号,使得可以登记MS的位置,并且搜索 基于与位置更新请求信号相对应的HPLMN搜索周期值,PLMN。 MSC(移动交换中心)对发送位置更新请求信号的MS执行认证过程,并从位置更新请求信号中提取位置信息。 VLR(访问位置寄存器)存储从MS外部提供的MS的用户数据,并注册MS的位置。 HLR(归属位置寄存器)更新从MSC提取的MS的位置信息,可以根据MS的位置信息在搜索HPLMN或更高优先级的PLMN时可变地设置搜索周期值,以及 将设置的搜索周期值发送到MS。