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    • 1. 发明申请
    • LOCATION SPECIFIC SEARCH FOR REGIONAL SATELLITE VEHICLES
    • 位置特定搜索区域卫星车辆
    • US20090318167A1
    • 2009-12-24
    • US12145361
    • 2008-06-24
    • Rayman Wai PonMarc IscheBorislav RisticJie Wu
    • Rayman Wai PonMarc IscheBorislav RisticJie Wu
    • H04Q7/20
    • G01S19/252G01S19/06
    • A position location system, method, and apparatus are disclosed. A wireless device receives a first signal and obtains an identifier indicative of a first location from the first signal. The first signal can be received from a cellular base station and the first identifier can be a mobile country code. The wireless device uses the identifier to determine the availability of signals from a regional satellite system at the first location. If signals from the regional satellite system are available at the first location, the wireless device retrieves information associated with one or more satellite vehicles in the regional satellite system. The information can include pseudo-random number codes and a Doppler search range corresponding to the first location. The wireless device receives a second signal and processes the second signal to obtain first satellite signal information. The wireless device determines its position at least partially based on the first satellite signal information.
    • 公开了位置定位系统,方法和装置。 无线设备接收第一信号并且从第一信号获得指示第一位置的标识符。 可以从蜂窝基站接收第一信号,并且第一标识符可以是移动国家代码。 无线设备使用标识符来确定来自第一位置的区域卫星系统的信号的可用性。 如果来自区域卫星系统的信号在第一位置可用,则无线设备检索与区域卫星系统中的一个或多个卫星车辆相关联的信息。 该信息可以包括对应于第一位置的伪随机数码和多普勒搜索范围。 无线设备接收第二信号并处理第二信号以获得第一卫星信号信息。 无线设备至少部分地基于第一卫星信号信息确定其位置。
    • 2. 发明授权
    • Location specific search for regional satellite vehicles
    • 针对区域卫星车辆的位置特定搜索
    • US08620306B2
    • 2013-12-31
    • US12145361
    • 2008-06-24
    • Rayman Wai PonMarc IscheBorislav RisticJie Wu
    • Rayman Wai PonMarc IscheBorislav RisticJie Wu
    • H04W4/00H04W24/00G01S19/00G01S19/42
    • G01S19/252G01S19/06
    • A position location system, method, and apparatus are disclosed. A wireless device receives a first signal and obtains an identifier indicative of a first location from the first signal. The first signal can be received from a cellular base station and the first identifier can be a mobile country code. The wireless device uses the identifier to determine the availability of signals from a regional satellite system at the first location. If signals from the regional satellite system are available at the first location, the wireless device retrieves information associated with one or more satellite vehicles in the regional satellite system. The information can include pseudo-random number codes and a Doppler search range corresponding to the first location. The wireless device receives a second signal and processes the second signal to obtain first satellite signal information. The wireless device determines its position at least partially based on the first satellite signal information.
    • 公开了位置定位系统,方法和装置。 无线设备接收第一信号并从第一信号获得指示第一位置的标识符。 可以从蜂窝基站接收第一信号,并且第一标识符可以是移动国家代码。 无线设备使用标识符来确定来自第一位置的区域卫星系统的信号的可用性。 如果来自区域卫星系统的信号在第一位置可用,则无线设备检索与区域卫星系统中的一个或多个卫星车辆相关联的信息。 该信息可以包括对应于第一位置的伪随机数码和多普勒搜索范围。 无线设备接收第二信号并处理第二信号以获得第一卫星信号信息。 无线设备至少部分地基于第一卫星信号信息确定其位置。