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1. 发明授权

US07970414B1 System and method for providing assisted GPS location service to dual mode mobile station 有权
标题翻译：向双模移动台提供辅助GPS定位服务的系统和方法
公开(公告)号：US07970414B1
公开(公告)日：2011-06-28
申请号：US12081968
申请日：2008-04-24
申请人： Steven Werden , Iftekhar Rahman , John Seeman
发明人： Steven Werden , Iftekhar Rahman , John Seeman
IPC分类号： H04W24/00
CPC分类号： G01S19/06 , G01S19/48
摘要： A system for determining position of a mobile station is provided. The mobile station is equipped with a GPS receiver for receiving satellite signals from satellites. The system comprises a wireless wide area network (WWAN) configured to provide an acquisition assistance data for use in acquiring the satellite signals by the GPS receiver to the mobile station that is operable in the WWAN. A position determination entity (PDE) is provided to determine position of the mobile station based on the satellite signals received sent from the mobile station and the acquisition assistance data from the WWAN. A wireless local area network (WLAN) provides RF signals to the mobile station when the mobile station enters into a WLAN area. The mobile station determines the position of the mobile station using the WWAN transceiver and the GPS receiver at the time when the mobile station enters into the WLAN area. The MS then uses this position when it is operating in the WLAN and it is requested to provide location by a LBS application or by the emergency 911 calling service.
摘要翻译：提供了一种用于确定移动台的位置的系统。移动台配备有用于从卫星接收卫星信号的GPS接收机。该系统包括无线广域网（WWAN），其被配置为提供用于由GPS接收机向在WWAN中可操作的移动台获取卫星信号的采集辅助数据。提供位置确定实体（PDE）以基于从移动台发送的接收的卫星信号和来自WWAN的获取辅助数据来确定移动台的位置。当移动台进入WLAN区域时，无线局域网（WLAN）向移动台提供RF信号。移动台在移动台进入WLAN区域时，使用WWAN收发器和GPS接收机来确定移动站的位置。然后，MS在WLAN中操作时使用该位置，并且请求由LBS应用程序或紧急911呼叫服务提供位置。

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