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    • 92. 发明授权
    • GPS synchronization for wireless communications stations
    • GPS同步无线通信站
    • US07593738B2
    • 2009-09-22
    • US11321893
    • 2005-12-29
    • Robert J. Anderson
    • Robert J. Anderson
    • H04W24/00H04B17/00H04J3/06H04B7/212G01S1/00H04B15/00
    • G01S19/03
    • A method and system are specified to determine, provide, and exploit the precise time base relations between the distinct signal timings of the Global Positioning System (GPS) and a wireless communications system (WCS) for which the internal WCS downlink time base standards are not inherently synchronized to GPS timing. These downlink signal synchronization facilities are particularly beneficial for a wireless location system (WLS) and related methods and subsystems that provide mobile-station location determination through the exploitation of the time base synchronization information, e.g., to assist a GPS-equipped mobile station in determining its GPS-derived measurements with enhanced efficiency and accuracy.
    • 指定方法和系统来确定,提供和利用全球定位系统(GPS)的不同信号定时与内部WCS下行链路时基标准不是的无线通信系统(WCS)之间的精确时基关系 固有地与GPS定时同步。 这些下行链路信号同步设施对于通过利用时基同步信息来提供移动站位置确定的无线定位系统(WLS)和相关方法和子系统是特别有益的,例如,以帮助配备GPS的移动台确定 其GPS导出测量提高了效率和精度。
    • 93. 发明申请
    • System for automatically determining cell transmitter parameters to facilitate the location of wireless devices
    • 用于自动确定小区发射机参数的系统,以便于无线设备的位置
    • US20080132247A1
    • 2008-06-05
    • US11607420
    • 2006-12-01
    • Robert J. Anderson
    • Robert J. Anderson
    • H04Q7/20
    • H04W64/00G01S5/0036G01S5/0226G01S5/10
    • Several techniques for locating wireless devices involve the Mobile Stations (MS) making measurements of the signals transmitted by geographically distributed base stations within a wireless network. If some key site information is known about these transmitters, such as the transmitter location, transmit signal power, signal propagation, and transmit signal timing, measurements of these transmit signals by a MS can be used to determine the position of the MS. An automatic method to detect transmitters, identify key transmitter information, and utilize the base station transmit signals to perform location is presented. In addition, this method facilitates the use of cell site transmit signals that are part of multiple wireless networks.
    • 用于定位无线设备的几种技术涉及移动站(MS),以对无线网络内的地理分布式基站发送的信号进行测量。 如果关于这些发射机的一些关键站点信息,例如发射机位置,发射信号功率,信号传播和发射信号定时,则可以使用MS对这些发射信号的测量来确定MS的位置。 提出了一种检测发射机,识别关键发射机信息以及利用基站发射信号执行定位的自动方法。 此外,该方法有助于使用作为多个无线网络一部分的小区站点发射信号。
    • 95. 发明申请
    • USER PLANE UPLINK TIME DIFFERENCE OF ARRIVAL (U-TDOA)
    • 用户平面上升时间差异(U-TDOA)
    • US20070155401A1
    • 2007-07-05
    • US11533310
    • 2006-09-19
    • Matthew L. WardRobert J. Anderson
    • Matthew L. WardRobert J. Anderson
    • H04Q7/20
    • H04W64/00H04W8/08
    • A system for locating a mobile wireless device is configured to communicate with a wireless communications system via a control plane and a user plane. The user plane includes a data channel, and the system includes a server configured to communicate via the data channel with a wireless device to be located. The server obtains from the wireless device information useful for tasking the wireless location system. The information useful for tasking may include information indicative of at least one cell site neighboring a serving cell site with which the wireless device is communicating. This may include information indicative of a serving cell site, a reverse channel through which the wireless device is communicating, and/or a hopping pattern, etc. The system may be used, for example, in connection with a GSM or UMTS wireless communications system.
    • 用于定位移动无线设备的系统被配置为经由控制平面和用户平面与无线通信系统通信。 用户平面包括数据通道,并且系统包括被配置为经由数据通道与待定位的无线设备进行通信的服务器。 服务器从无线设备获得有用的任务无线定位系统的信息。 有用于任务的信息可以包括指示与无线设备正在通信的服务小区站点相邻的至少一个小区站点的信息。 这可以包括指示服务小区站点的信息,无线设备正在通信的反向信道,和/或跳频模式等。该系统可以例如与GSM或UMTS无线通信系统 。