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1. 发明授权

US06236359B1 Cellular terminal location using GPS signals in the cellular band 失效
公开(公告)号：US06236359B1
公开(公告)日：2001-05-22
申请号：US09078444
申请日：1998-05-14
申请人： J. Michael Watters , Leo Strawczynski , David G. Steer
发明人： J. Michael Watters , Leo Strawczynski , David G. Steer
IPC分类号： G01S120
CPC分类号： G01S5/14 , G01S19/07 , G01S19/11 , G01S19/35 , G01S19/46 , G01S19/48 , G01S2205/008
摘要： Aspects of global positioning system (GPS) technology and cellular technology are combined in order to provide an effective and efficient position location system. In a first aspect of the invention, a cellular network is utilized to collect differential GPS error correction data, which is forwarded to a mobile terminal over the cellular network. The mobile terminal receives this data, along with GPS pseudoranges using a GPS receiver, and calculates its position using this information. According to a second aspect, when the requisite number of GPS satellites are not in view of the mobile terminal, then a GPS pseudosatellite signal, broadcast from a base station of the cellular network, is received by the mobile terminal and processed as a substitute for the missing GPS satellite signal. A third aspect involves calculating position using GPS when the requisite number of GPS satellites are in view of a GPS receiver, but when the requisite number of GPS satellites are not in view of the GPS receiver, then position is calculated using the cellular network infrastructure. When the requisite number of GPS satellites come back into view of the GPS receiver, then position is again calculated using GPS. A fourth aspect involves using cellular signals already being transmitted from base stations to terminals in a cellular network to calculate a round trip delay, from which a distance calculation between the base station and the terminal can be made. This distance calculation substitutes for a missing GPS satellite signal.

2. 发明授权

US5982324A Combining GPS with TOA/TDOA of cellular signals to locate terminal 失效
标题翻译：将GPS与蜂窝信号的TOA / TDOA相结合，定位终端
公开(公告)号：US5982324A
公开(公告)日：1999-11-09
申请号：US078558
申请日：1998-05-14
申请人： J. Michael Watters , Leo Strawczynski , David G. Steer
发明人： J. Michael Watters , Leo Strawczynski , David G. Steer
IPC分类号： G01S1/00 , G01S5/00 , G01S5/14 , G01S19/06 , G01S19/25 , G01S5/02 , H04B7/185
CPC分类号： G01S19/41 , G01S19/11 , G01S19/34 , G01S19/46 , G01S5/009 , G01S2205/008 , H03J2200/11
摘要： Aspects of global positioning system (GPS) technology and cellular technology are combined in order to provide an effective and efficient position location system. In a first aspect of the invention, a cellular network is utilized to collect differential GPS error correction data, which is forwarded to a mobile terminal over the cellular network. The mobile terminal receives this data, along with GPS pseudoranges using a GPS receiver, and calculates its position using this information. According to a second aspect, when the requisite number of GPS satellites are not in view of the mobile terminal, then a GPS pseudosatellite signal, broadcast from a base station of the cellular network, is received by the mobile terminal and processed as a substitute for the missing GPS satellite signal. A third aspect involves calculating position using GPS when the requisite number of GPS satellites are in view of a GPS receiver, but when the requisite number of GPS satellites are not in view of the GPS receiver, then position is calculated using the cellular network infrastructure. When the requisite number of GPS satellites come back into view of the GPS receiver, then position is again calculated using GPS. A fourth aspect involves using cellular signals already being transmitted from base stations to terminals in a cellular network to calculate a round trip delay, from which a distance calculation between the base station and the terminal can be made. This distance calculation substitutes for a missing GPS satellite signal.
摘要翻译：结合全球定位系统（GPS）技术和蜂窝技术的方面，以提供有效和高效的位置定位系统。在本发明的第一方面，蜂窝网络用于收集通过蜂窝网络转发到移动终端的差分GPS误差校正数据。移动终端使用GPS接收机连同GPS伪距接收该数据，并使用该信息来计算其位置。根据第二方面，当GPS卫星的必需数量不在移动终端时，则由蜂窝网络的基站广播的GPS伪卫星信号被移动终端接收并被处理为缺少GPS卫星信号。第三方面涉及当GPS卫星的所需数量是GPS接收机时，使用GPS计算位置，但是当GPS卫星的必要数量不在GPS接收机时，则使用蜂窝网络基础设施来计算位置。当必要数量的GPS卫星重新看到GPS接收机时，再次使用GPS计算位置。第四方面涉及使用已经从基站向蜂窝网络中的终端发送的蜂窝信号来计算往返延迟，从而可以进行基站与终端之间的距离计算。该距离计算代替丢失的GPS卫星信号。

3. 发明授权

US6070083A Mobile communication device and communication network for providing location services 失效
标题翻译：移动通信设备和通信网络，用于提供定位服务
公开(公告)号：US6070083A
公开(公告)日：2000-05-30
申请号：US78499
申请日：1998-05-14
申请人： J. Michael Watters , Leo Strawczynski , David Steer
发明人： J. Michael Watters , Leo Strawczynski , David Steer
IPC分类号： G01S5/00 , G01S5/10 , H04W4/02 , H04W24/00 , H04W28/24 , H04W48/08 , H04W64/00 , H04Q7/20
CPC分类号： H04W4/02 , G01S5/0027 , G01S5/10 , H04W64/00 , G01S2205/008 , H04W24/00 , H04W28/24 , H04W48/08
摘要： A mobile communication system and communication device for providing location services. Time difference of arrival (TDOA) measurements are used to determine the location of a mobile of the network. The location may be forwarded to a service provider. The location may alternatively be used to determine service providers that are local to the mobile. Correction factors deprived from calibration TDOA measurements made at calibration terminals are applied to the TDOA measurements enhance the accuracy of the location determination.
摘要翻译：一种用于提供定位服务的移动通信系统和通信设备。使用时差（TDOA）测量来确定网络的移动设备的位置。该位置可以被转发到服务提供商。该位置可以替代地用于确定移动设备本地的服务提供商。校准因子被剥夺的校正因子在校准终端上进行TDOA测量被应用于TDOA测量，提高了位置确定的准确性。

4. 发明授权

US06249245B1 GPS and cellular system interworking 失效
标题翻译： GPS和蜂窝系统互通
公开(公告)号：US06249245B1
公开(公告)日：2001-06-19
申请号：US09078325
申请日：1998-05-14
申请人： J. Michael Watters , Leo Strawczynski , David G. Steer
发明人： J. Michael Watters , Leo Strawczynski , David G. Steer
IPC分类号： G01S510
CPC分类号： G01S5/0027 , G01S5/009 , G01S19/41 , G01S2205/008
摘要： Aspects of global positioning system (GPS) technology and cellular technology are combined in order to provide an effective and efficient position location system. In a first aspect of the invention, a cellular network is utilized to collect differential GPS error correction data, which is forwarded to a mobile terminal over the cellular network. The mobile terminal receives this data, along with GPS pseudoranges using a GPS receiver, and calculates its position using this information. According to a second aspect, when the requisite number of GPS satellites are not in view of the mobile terminal, then a GPS pseudosatellite signal, broadcast from a base station of the cellular network, is received by the mobile terminal and processed as a substitute for the missing GPS satellite signal. A third aspect involves calculating position using GPS when the requisite number of GPS satellites are in view of a GPS receiver, but when the requisite number of GPS satellites are not in view of the GPS receiver, then position is calculated using the cellular network infrastructure. When the requisite number of GPS satellites come back into view of the GPS receiver, then position is again calculated using GPS. A fourth aspect involves using cellular signals already being transmitted from base stations to terminals in a cellular network to calculate a round trip delay, from which a distance calculation between the base station and the terminal can be made. This distance calculation substitutes for a missing GPS satellite signal.
摘要翻译：结合全球定位系统（GPS）技术和蜂窝技术的方面，以提供有效和高效的位置定位系统。在本发明的第一方面，蜂窝网络用于收集通过蜂窝网络转发到移动终端的差分GPS误差校正数据。移动终端使用GPS接收机连同GPS伪距接收该数据，并使用该信息来计算其位置。根据第二方面，当GPS卫星的必需数量不在移动终端时，则由蜂窝网络的基站广播的GPS伪卫星信号被移动终端接收并被处理为缺少GPS卫星信号。第三方面涉及当GPS卫星的所需数量是GPS接收机时，使用GPS计算位置，但是当GPS卫星的必要数量不在GPS接收机时，则使用蜂窝网络基础设施来计算位置。当必要数量的GPS卫星重新看到GPS接收机时，再次使用GPS计算位置。第四方面涉及使用已经从基站向蜂窝网络中的终端发送的蜂窝信号来计算往返延迟，从而可以进行基站与终端之间的距离计算。该距离计算代替丢失的GPS卫星信号。

5. 发明授权

US06230018B1 Devices and processing in a mobile radio communication network having calibration terminals 失效
标题翻译：具有校准终端的移动无线电通信网络中的设备和处理
公开(公告)号：US06230018B1
公开(公告)日：2001-05-08
申请号：US09078500
申请日：1998-05-14
申请人： J. Michael Watters , Leo Strawczynski , David Steer
发明人： J. Michael Watters , Leo Strawczynski , David Steer
IPC分类号： H04Q720
CPC分类号： H04W64/00 , G01S1/022 , G01S5/02 , G01S5/021 , G01S5/10 , G01S2205/008
摘要： In a mobile communication network, the accuracy of location determinations for mobiles based on TDOA measurements made by the mobiles is increased by measuring the TDOA of signals from base station pairs at a known location and generating correction factors for compensating timing and propagation errors in TDOA measurements made by the mobiles. Calibration terminals may be provided for measuring TDOAs at known locations. System processes and elements for applying data generated by calibration terminals are disclosed.
摘要翻译：在移动通信网络中，通过在已知位置测量来自基站对的信号的TDOA，并且产生用于补偿TDOA测量中的定时和传播误差的校正因子来增加基于由移动台进行的TDOA测量的移动台的位置确定的准确性由手机制作。可以提供校准终端用于在已知位置测量TDOA。公开了用于应用校准终端产生的数据的系统过程和元件。

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