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    • 3. 发明申请
    • Location Accuracy Improvement Using a priori Probabilities
    • 使用先验概率进行位置精度提高
    • US20120052835A1
    • 2012-03-01
    • US12870564
    • 2010-08-27
    • Jeffrey F. BullRashidus S. MiaRobert J. Anderson
    • Jeffrey F. BullRashidus S. MiaRobert J. Anderson
    • H04W4/02H04W4/22
    • G01S5/0278G01S5/0252H04W64/00
    • A large volume of high accuracy location data is determined in many commercial wireless networks from location based services (LBS) and, in the United States, for E911. Uplink-Time-Difference-of-Arrival (UTDOA) and Assisted GPS (AGPS) are the predominant geolocation technologies providing these high accuracy locations. In the US alone over 10 million wireless subscribers are located every month because they dial the national emergency number “911” on their mobile phones. This rich set of location data provides an a priori distribution of the location of subscribers in the wireless network. All digital wireless communications networks have a mechanism for the subscribers to time synchronize their handsets to the network. This mechanism provides a band of ranges from the serving cell site to the handset. An a posteriori location estimate can be determined very quickly by considering the a priori distribution of callers in the range band that the current subscriber is in.
    • 在许多商业无线网络中,从基于位置的服务(LBS)和在美国的E911确定了大量的高精度位置数据。 上行 - 时差到达(UTDOA)和辅助GPS(AGPS)是提供这些高精度位置的主要地理位置技术。 在美国,每个月都有超过1000万无线用户位于他们的手机上拨打国家紧急号码“911”。 这种丰富的位置数据集提供了无线网络中用户位置的先验分布。 所有数字无线通信网络具有用于用户将其手机时间同步到网络的机制。 该机制提供从服务小区站点到手机的范围的频带。 通过考虑当前用户所在的范围频段内的呼叫者的先验分布,可以非常快速地确定后验位置估计。
    • 5. 发明申请
    • Femto-Cell Location by Direct Methods
    • 通过直接方法的毫微微小区位置
    • US20100120447A1
    • 2010-05-13
    • US12268989
    • 2008-11-11
    • Robert J. AndersonRashidus S. MiaMatthew L. Ward
    • Robert J. AndersonRashidus S. MiaMatthew L. Ward
    • H04W64/00
    • H04W64/003G01S5/0242H04W84/045
    • Illustrative embodiments of the inventive subject matter described herein include, but are not limited to, the following: a femto-cell device, methods for use by a wireless location system (WLS) in locating a femto-cell device, and a wireless location system having certain features relating to the location of femto-cell devices. A femto-cell device used in a wireless communications system (WCS) includes a location subsystem configured to acquire information identifying the geographic location of the femto-cell device. The device also includes an antenna subsystem, a radio frequency (RF) block coupled to the antenna subsystem, a baseband block coupled to the RF block, and a communications block coupled to the baseband block. In addition, the device is configured to communicate with the WCS, including communicating at least some of the location information to the WCS.
    • 本文描述的本发明主题的说明性实施例包括但不限于以下:毫微微小区设备,无线定位系统(WLS)在定位毫微微小区设备时使用的方法,以及无线定位系统 具有与毫微微小区设备的位置相关的某些特征。 在无线通信系统(WCS)中使用的毫微微小区设备包括被配置为获取识别毫微微小区设备的地理位置的信息的位置子系统。 该设备还包括天线子系统,耦合到天线子系统的射频(RF)块,耦合到RF块的基带块以及耦合到基带块的通信块。 另外,该设备被配置为与WCS通信,包括将至少一些位置信息传送到WCS。
    • 9. 发明授权
    • Femto-cell location by direct methods
    • 通过直接方式进行毫微微小区定位
    • US08180368B2
    • 2012-05-15
    • US12268989
    • 2008-11-11
    • Robert J. AndersonRashidus S. MiaMatthew L. Ward
    • Robert J. AndersonRashidus S. MiaMatthew L. Ward
    • H04W24/00H04W36/00H04W40/00H04M11/04
    • H04W64/003G01S5/0242H04W84/045
    • Illustrative embodiments of the inventive subject matter described herein include, but are not limited to, the following: a femto-cell device, methods for use by a wireless location system (WLS) in locating a femto-cell device, and a wireless location system having certain features relating to the location of femto-cell devices. A femto-cell device used in a wireless communications system (WCS) includes a location subsystem configured to acquire information identifying the geographic location of the femto-cell device. The device also includes an antenna subsystem, a radio frequency (RF) block coupled to the antenna subsystem, a baseband block coupled to the RF block, and a communications block coupled to the baseband block. In addition, the device is configured to communicate with the WCS, including communicating at least some of the location information to the WCS.
    • 本文描述的本发明主题的说明性实施例包括但不限于以下:毫微微小区设备,无线定位系统(WLS)在定位毫微微小区设备时使用的方法,以及无线定位系统 具有与毫微微小区设备的位置相关的某些特征。 在无线通信系统(WCS)中使用的毫微微小区设备包括被配置为获取识别毫微微小区设备的地理位置的信息的位置子系统。 该设备还包括天线子系统,耦合到天线子系统的射频(RF)块,耦合到RF块的基带块以及耦合到基带块的通信块。 另外,该设备被配置为与WCS通信,包括将至少一些位置信息传送到WCS。