公开(公告)号：US20080107155A1

公开(公告)日：2008-05-08

申请号：US11972855

申请日：2008-01-11

申请人： Joseph Kennedy ,  Thomas Gravely ,  John Carlson ,  Martin Alles ,  Doug Blackburn

发明人： Joseph Kennedy ,  Thomas Gravely ,  John Carlson ,  Martin Alles ,  Doug Blackburn

IPC分类号： H04B1/713 ,  H04B17/00

CPC分类号： H04B1/713 ,  H04B17/0085 ,  H04B17/21 ,  H04B17/27

摘要： A method for calibrating an antenna and signal processing system enabling angle of arrival (AOA) determination for a frequency hopping signal, in which a calibration coefficient is determined in response to one or more calibration signals injected into the system at one or more of the frequencies in the hopping sequence and proximate in time to reception of the communication signal. The calibration coefficients are reflective of a frequency and time dependent parameter of a path between the antenna and wireless location sensor. The AOA is determined as a function of the calibration coefficient and the radio frequency energy of the received communication signal. Several embodiments of the method are illustrated.

摘要翻译： 一种用于校准天线和信号处理系统的方法，所述天线和信号处理系统使能到达跳频信号的到达角（AOA）确定，其中校准系数是响应于以一个或多个频率注入到系统中的一个或多个校准信号而确定的 在跳频序列中并且在时间上接近通信信号。 校准系数反映了天线和无线位置传感器之间路径的频率和时间相关参数。 AOA被确定为接收到的通信信号的校准系数和射频能量的函数。 示出了该方法的几个实施例。

公开(公告)号：US20070087689A1

公开(公告)日：2007-04-19

申请号：US10566589

申请日：2004-09-24

申请人： Martin Alles ,  Joseph Kennedy ,  John Carlson

发明人： Martin Alles ,  Joseph Kennedy ,  John Carlson

IPC分类号： H04B7/15 ,  H04B7/14

CPC分类号： H04B7/155 ,  G01S5/0221 ,  G01S5/0273 ,  G01S5/06

摘要： A novel system and method for a network overlay geolocation system operating in a host wireless communication system with repeaters is disclosed. Embodiments of the novel system and method enable a wireless communication system to determine if signals being received by system receivers arrive directly from a target mobile appliance or if the signals are passing through or via a repeater. In an embodiment, the system's repeaters use a co-channel AM Golay Hadamard sequence multiplied by an uplink signal to watermark the repeated signal. The system uses the known AM Golay Hadamard sequences of the repeaters and the waveform of the received uplink signal to detect whether a repeater has operated on the signal and which repeater operated on the uplink signal. Embodiments of the novel system and method provide system management data and can be used to provide more accurate geolocation of mobiles served by repeater stations.

摘要翻译： 公开了一种在具有中继器的主机无线通信系统中操作的网络覆盖地理位置系统的新型系统和方法。 新颖的系统和方法的实施例使得无线通信系统能够确定系统接收器正在接收的信号是否直接从目标移动设备到达，或者信号是否经过中继器。 在一个实施例中，系统的中继器使用与上行链路信号相乘的同频道AM Golay Hadamard序列来水印重复的信号。 该系统使用中继器的已知AM Golay Hadamard序列和接收的上行链路信号的波形来检测中继器是否对信号进行操作，哪个中继器在上行链路信号上操作。 新颖的系统和方法的实施例提供系统管理数据，并且可以用于提供由中继站服务的移动台的更准确的地理位置。

公开(公告)号：US20050136945A1

公开(公告)日：2005-06-23

申请号：US11015788

申请日：2004-12-20

申请人： Joseph Kennedy ,  John Carlson ,  Martin Alles ,  Nicolas Graube ,  Robert Rowe

发明人： Joseph Kennedy ,  John Carlson ,  Martin Alles ,  Nicolas Graube ,  Robert Rowe

IPC分类号： H04W64/00 ,  H04Q7/20

CPC分类号： H04W64/00

摘要： A method for use in a wireless communication system with a network overlay geolocation system having a sparse deployment network in which base stations of the wireless communication system may or may not have a co-located wireless location sensor (WLS). The method uses U-TDOA measurements on the uplink (reverse) signal and E-OTD measurements on the downlink (forward) signals to estimate a location for a mobile appliance.

摘要翻译： 一种用于具有网络覆盖地理位置系统的无线通信系统的方法，所述网络覆盖地理位置系统具有稀疏部署网络，其中所述无线通信系统的基站可以具有或可以不具有同位置的无线位置传感器（WLS）。 该方法在下行链路（前向）信号上的上行链路（反向）信号和E-OTD测量中使用U-TDOA测量来估计移动设备的位置。

公开(公告)号：US20060003695A1

公开(公告)日：2006-01-05

申请号：US10531038

申请日：2003-10-16

申请人： Joseph Kennedy ,  Thomas Gravely ,  Andrew Beck ,  John Carlson ,  Martin Alles

发明人： Joseph Kennedy ,  Thomas Gravely ,  Andrew Beck ,  John Carlson ,  Martin Alles

IPC分类号： H04Q7/20

CPC分类号： G01S5/0045 ,  G01S5/02 ,  G01S5/0226 ,  G01S5/0273 ,  H04B7/2606 ,  H04B17/27 ,  H04W64/00

摘要： A novel system and method for a network overlay geolocation system operating in a host wireless communication system with repeaters (350a, 350b) is disclosed. Embodiments of the novel system and method enable the geolocation system to determine if signals being received by the geolocation system arrive directly from a target mobile appliance or if the signals are passing through a repeater (350a, 350b) and therefore are subject to a known time delay. Embodiments of the novel system and method provide a more accurate geolocation of mobiles served by repeater stations than capable in the prior art.

摘要翻译： 公开了一种在具有中继器（350a，350b）的主机无线通信系统中操作的网络覆盖地理位置系统的新型系统和方法。 新颖的系统和方法的实施例使得地理定位系统能够确定地理位置系统正在接收的信号是否直接从目标移动设备到达，或者如果信号正在通过中继器（350a，350b），并且因此受到 已知的时间延迟。 新型系统和方法的实施例提供了比现有技术中能力更好的由中继站服务的移动台的地理定位。

公开(公告)号：US20060125695A1

公开(公告)日：2006-06-15

申请号：US10531044

申请日：2003-10-16

申请人： Joseph Kennedy ,  John Carlson ,  Thomas Gravely ,  Martin Alles

发明人： Joseph Kennedy ,  John Carlson ,  Thomas Gravely ,  Martin Alles

IPC分类号： G01S3/02

CPC分类号： H04W64/00 ,  G01S5/021 ,  G01S5/0268 ,  H04B1/1081 ,  H04B7/0848 ,  H04B7/0854 ,  H04B7/086 ,  H04B7/0891 ,  H04B17/318 ,  H04L25/0206 ,  H04W24/00

摘要： A method for enabling a system to enhance the accuracy of a location estimate modifies weights in a weight matrix associated with receiver station measurements in parallel with successive refinements of the location estimate. In a typical location estimation scenario, several receiving stations simultaneously derive measurements of a signal from the emitter. Any one of these measurements is in general some function of the emitter location and the receiving station location. The aggregate of these measurements is often in excess of the minimum number of measurements required to provide an estimate of the emitter location. Where such an excess exists, the method proceeds by modifying the weights associated with the measurements in parallel with successive refinements of the location estimate. The method can be implemented over various cellular protocols with a consistent and significant enhancement in the accuracy of location estimates.

摘要翻译： 一种使系统能够提高位置估计的准确性的方法是与位置估计的连续改进并行地修改与接收机站测量相关联的权重矩阵中的权重。 在典型的位置估计场景中，几个接收站同时导出来自发射器的信号的测量。 这些测量中的任何一个通常是发射器位置和接收站位置的一些功能。 这些测量的总和通常超过提供发射器位置的估计所需的最小测量数量。 在存在这种超量的情况下，该方法通过与位置估计的连续改进并行地修改与测量相关联的权重来进行。 该方法可以通过各种蜂窝协议实现，其中位置估计的准确性具有一致和显着的增强。

公开(公告)号：US20050058182A1

公开(公告)日：2005-03-17

申请号：US10768638

申请日：2004-02-02

申请人： Joseph Kennedy ,  Thomas Gravely ,  John Carlson ,  Martin Alles ,  Doug Blackburn

发明人： Joseph Kennedy ,  Thomas Gravely ,  John Carlson ,  Martin Alles ,  Doug Blackburn

IPC分类号： G01S19/03 ,  H04B1/713

CPC分类号： H04B1/713 ,  H04B17/0085 ,  H04B17/21 ,  H04B17/27

摘要： A method for calibrating an antenna and signal processing system enabling angle or arrival (AOA) determination for a frequency hopping signal, in which a calibration coefficient is determined in response to one or more calibration signals injected into the system at one or more of the frequencies in the hopping sequence and proximate in time to reception of the communication signal. The calibration coefficients are reflective of a frequency and time dependent parameter of a path between the antenna and wireless location sensor. The AOA is determined as a function of the calibration coefficient and the radio frequency energy of the received communication signal. Several embodiment of the method are illustrated.

摘要翻译： 一种用于校准天线和信号处理系统的方法，所述天线和信号处理系统能够对跳频信号进行角度或到达（AOA）确定，其中校准系数响应于以一个或多个频率注入到系统中的一个或多个校准信号来确定 在跳频序列中并且在时间上接近通信信号。 校准系数反映了天线和无线位置传感器之间路径的频率和时间相关参数。 AOA被确定为接收到的通信信号的校准系数和射频能量的函数。 示出了该方法的几个实施例。

公开(公告)号：US08400358B2

公开(公告)日：2013-03-19

申请号：US12424320

申请日：2009-04-15

申请人： Martin Alles ,  John Carlson ,  George Maher ,  Selcuk Mazlum

发明人： Martin Alles ,  John Carlson ,  George Maher ,  Selcuk Mazlum

IPC分类号： G01S3/02

CPC分类号： G01S5/021 ,  G01S5/0252 ,  G01S5/0257 ,  H04W4/02

摘要： A method of modifying calibration data used to geo-locate a mobile station located in an indoor environment is disclosed. When a mobile station is located indoors, the signal strength of signals received and/or transmitted by the mobile station have the tendency to be lower than the strength of the signals received by a mobile station located outdoors. As a result of these lower signal strengths, geo-location efforts which rely on signal strengths may result in unsatisfactory location accuracy. Modifying pre-existing calibration data obtained outdoors may provide a way to simulate indoor calibration data characteristics.

公开(公告)号：US08331953B2

公开(公告)日：2012-12-11

申请号：US11743139

申请日：2007-05-01

申请人： John Carlson ,  Martin Alles

发明人： John Carlson ,  Martin Alles

IPC分类号： H04W24/00

CPC分类号： H04W64/00 ,  G01S5/10 ,  G01S5/12

摘要： A system and method for estimating the location of a mobile station that receives signals from a plurality of base stations. The base station timing offsets may be estimated utilizing an observed time difference of arrival value at the mobile between a first signal received from a first base station and a second signal received from a second base station. An initial location for the mobile is randomly selected and an estimated location is determined using the selected initial location, the observed time difference of arrival value, and an iterative search algorithm. The estimated location may be stored if the estimated location is within a predetermined area. In addition, for each such estimated location, the applicable base station time offsets that relate to this location may be updated to generate a current best estimate. A calculated location for the mobile may be determined from stored estimated locations and the current base station time offset estimates.

摘要翻译： 一种用于估计从多个基站接收信号的移动台的位置的系统和方法。 可以使用在从第一基站接收的第一信号和从第二基站接收到的第二信号之间的观察到的移动台处的到达时间差值来估计基站定时偏移。 随机选择移动台的初始位置，并使用所选择的初始位置，观察到的到达时间差值和迭代搜索算法来确定估计位置。 如果估计位置在预定区域内，则可以存储估计位置。 此外，对于每个这样的估计位置，可以更新与该位置相关的适用的基站时间偏移量以产生当前的最佳估计。 可以从存储的估计位置和当前基站时间偏移估计来确定移动站的计算位置。

公开(公告)号：US08254966B2

公开(公告)日：2012-08-28

申请号：US12026352

申请日：2008-02-05

申请人： John Carlson ,  Martin Alles ,  George Maher ,  Selcuk Mazlum

发明人： John Carlson ,  Martin Alles ,  George Maher ,  Selcuk Mazlum

IPC分类号： H04W24/00

CPC分类号： G01S5/021 ,  G01S5/0252 ,  G01S5/0257 ,  H04W4/02

摘要： A system and method to re-calibrate an area of a wireless communications network that has been exposed to one or more network configuration changes is disclosed. When one or more attributes of the wireless network undergo a change which impairs the geo-location capability to locate a mobile station, it can be detrimental to the safety and well being of the network users. Geo-location calculations rely on accurate and updated calibration data to correctly locate a mobile station. In some instances, it may be necessary to update the calibration data for areas of the network that have been exposed to network configuration changes. Modifying previously collected calibration data to account for changes that have occurred in the network may increase the accuracy of mobile station location estimation.

摘要翻译： 公开了一种重新校准已经暴露于一个或多个网络配置变化的无线通信网络的区域的系统和方法。 当无线网络的一个或多个属性经历改变以损害定位移动站的地理位置能力时，可能对网络用户的安全性和安全性是不利的。 地理位置计算依靠准确和更新的校准数据来正确定位移动台。 在某些情况下，可能需要更新已经暴露于网络配置更改的网络区域的校准数据。 修改先前收集的校准数据以解决网络中发生的变化可能会增加移动台位置估计的准确性。

公开(公告)号：US08175620B2

公开(公告)日：2012-05-08

申请号：US12068213

申请日：2008-02-04

申请人： John Carlson ,  Martin Alles ,  George Maher ,  Selcuk Mazlum

发明人： John Carlson ,  Martin Alles ,  George Maher ,  Selcuk Mazlum

IPC分类号： H04W24/00

CPC分类号： G01S5/021 ,  G01S5/0252 ,  G01S5/0257 ,  H04W4/02

摘要： The location of a wireless mobile device may be estimated using, at least in part, one or more pre-existing Network Measurement Reports (“NMRs”) which include calibration data for a number of locations within a geographic region. The calibration data for these locations is gathered and analyzed so that particular grid points within the geographic region can be determined and associated with a particular set or sets of calibration data from, for example, one or more NMRs. Received signal level measurements reported by a mobile device for which a location estimate is to be determined may be compared with the data associated with the various grid points to estimate the location of the mobile device.

摘要翻译： 可以至少部分地使用包括地理区域内的多个位置的校准数据的一个或多个预先存在的网络测量报告（“NMR”）来估计无线移动设备的位置。 收集和分析这些位置的校准数据，使得可以确定地理区域内的特定网格点并且与例如一个或多个NMR的特定的校准数据集合相关联。 可以将要确定位置估计的移动设备报告的接收信号电平测量值与与各个网格点相关联的数据进行比较，以估计移动设备的位置。