公开(公告)号：US08170585B2

公开(公告)日：2012-05-01

申请号：US11984207

申请日：2007-11-14

申请人： Tariqul Islam ,  John Carlson

发明人： Tariqul Islam ,  John Carlson

IPC分类号： H04W24/00 ,  H04W4/00

CPC分类号： H04W64/00

摘要： A method and system for determining an approximate range from a location measurement unit to a mobile device. An uplink signal from the mobile device is received by the location measurement unit, and an uplink frame marker is determined from the uplink signal. A downlink signal is received at the location measurement unit from a base station serving the mobile device, and a downlink slot marker is determined from the downlink signal. A round trip propagation delay is determined based upon the uplink frame marker and the downlink slot marker, and an approximate range from the location measurement unit to the mobile device is determined as a function of the round trip propagation delay.

摘要翻译： 一种用于确定从位置测量单元到移动设备的近似范围的方法和系统。 来自移动设备的上行链路信号由位置测量单元接收，并且从上行链路信号确定上行链路帧标记。 在位置测量单元从服务于移动设备的基站接收下行链路信号，并且从下行链路信号确定下行链路时隙标记。 基于上行链路帧标记和下行链路时隙标记来确定往返传播延迟，并且根据往返传播延迟确定从位置测量单元到移动设备的近似范围。

公开(公告)号：US20120009949A1

公开(公告)日：2012-01-12

申请号：US12951474

申请日：2010-11-22

申请人： Tariqul Islam ,  John Carlson

发明人： Tariqul Islam ,  John Carlson

IPC分类号： H04W24/00 ,  H04W56/00

CPC分类号： H04W64/00

摘要： A system and method for estimating a location of a subscriber station receiving a first signal from a first base station and receiving a second signal from a second base station where the first and second base stations are nodes in a WiMAX or LTE network. A message may be received from the subscriber station containing first and second information, and a range ring determined from the first base station using the first information. A location hyperbola may be determined using the second information wherein the location hyperbola has the first and second base stations as foci. A location of the subscriber station may be estimated using the range ring and the location hyperbola.

摘要翻译： 一种用于估计从第一基站接收第一信号的用户台的位置并从第二基站接收第二信号的系统和方法，其中所述第一和第二基站是WiMAX或LTE网络中的节点。 可以从用户站接收包含第一和第二信息的消息，以及使用第一信息从第一基站确定的范围环。 可以使用第二信息来确定位置双曲线，其中位置双曲线具有第一和第二基站作为焦点。 可以使用范围环和位置双曲线来估计订户站的位置。

公开(公告)号：US20090124266A1

公开(公告)日：2009-05-14

申请号：US11984207

申请日：2007-11-14

申请人： John Carlson ,  Tariqul Islam

发明人： John Carlson ,  Tariqul Islam

IPC分类号： H04Q7/20

CPC分类号： H04W64/00

摘要： A method and system for determining an approximate range from a location measurement unit to a mobile device. An uplink signal from the mobile device is received by the location measurement unit, and an uplink frame marker is determined from the uplink signal. A downlink signal is received at the location measurement unit from a base station serving the mobile device, and a downlink slot marker is determined from the downlink signal. A round trip propagation delay is determined based upon the uplink frame marker and the downlink slot marker, and an approximate range from the location measurement unit to the mobile device is determined as a function of the round trip propagation delay.

摘要翻译： 一种用于确定从位置测量单元到移动设备的近似范围的方法和系统。 来自移动设备的上行链路信号由位置测量单元接收，并且从上行链路信号确定上行链路帧标记。 在位置测量单元从服务于移动设备的基站接收下行链路信号，并且从下行链路信号确定下行链路时隙标记。 基于上行链路帧标记和下行链路时隙标记来确定往返传播延迟，并且根据往返传播延迟确定从位置测量单元到移动设备的近似范围。

公开(公告)号：US20130095853A1

公开(公告)日：2013-04-18

申请号：US13705820

申请日：2012-12-05

申请人： Tariqul Islam ,  John Carlson ,  Khalid Al-Mufti ,  Ariful Hannan

发明人： Tariqul Islam ,  John Carlson ,  Khalid Al-Mufti ,  Ariful Hannan

IPC分类号： H04W24/00

CPC分类号： H04W24/00 ,  G01S5/0215 ,  H04W64/00

摘要： A system and method for estimating a location of a wireless device in a wireless communication system having a plurality of nodes and a plurality of location measurement units (“LMUs”). A set of signal samples from a first wireless device and a second wireless device may be collected by one or more LMUs in a search window. A first time of arrival (“TOA”) is determined, and a second search window is estimated as a function of the first TOA. A second TOA may be determined within the second search window at a second node or one of the LMUs from the set of signal samples. A range estimate of the wireless device may then be determined, and an estimated location of the wireless device may be determined as a function of the first uplink TOA, the second uplink TOA, or the range estimate and second TOA.

摘要翻译： 一种用于在具有多个节点和多个位置测量单元（“LMU”）的无线通信系统中估计无线设备的位置的系统和方法。 来自第一无线设备和第二无线设备的一组信号样本可以由搜索窗口中的一个或多个LMU收集。 第一次到达（“TOA”）被确定，并且第二个搜索窗口被估计为第一个TOA的函数。 可以在第二个节点的第二个搜索窗口中确定第二个TOA，或者从该组信号样本中确定一个LMU。 然后可以确定无线设备的范围估计，并且可以根据第一上行链路TOA，第二上行链路TOA或范围估计和第二TOA来确定无线设备的估计位置。

公开(公告)号：US20120142374A1

公开(公告)日：2012-06-07

申请号：US13396256

申请日：2012-02-14

申请人： John Carlson ,  Tariqul Islam

发明人： John Carlson ,  Tariqul Islam

IPC分类号： H04W64/00

CPC分类号： H04W64/00

摘要： A method and system for determining an approximate range from a location measurement unit to a mobile device. An uplink signal from the mobile device is received by the location measurement unit, and an uplink frame marker is determined from the uplink signal. A downlink signal is received at the location measurement unit from a base station serving the mobile device, and a downlink slot marker is determined from the downlink signal. A round trip propagation delay is determined based upon the uplink frame marker and the downlink slot marker, and an approximate range from the location measurement unit to the mobile device is determined as a function of the round trip propagation delay.

摘要翻译： 一种用于确定从位置测量单元到移动设备的近似范围的方法和系统。 来自移动设备的上行链路信号由位置测量单元接收，并且从上行链路信号确定上行链路帧标记。 在位置测量单元从服务于移动设备的基站接收下行链路信号，并且从下行链路信号确定下行链路时隙标记。 基于上行链路帧标记和下行链路时隙标记来确定往返传播延迟，并且根据往返传播延迟确定从位置测量单元到移动设备的近似范围。

公开(公告)号：US08731457B2

公开(公告)日：2014-05-20

申请号：US12951550

申请日：2010-11-22

申请人： Tariqul Islam ,  John Carlson

发明人： Tariqul Islam ,  John Carlson

IPC分类号： H04H20/71 ,  H04W24/00

CPC分类号： H04W64/00 ,  H04W24/10

摘要： A system and method for estimating a location of a subscriber station receiving a first signal from a first base station and receiving a second signal from a second base station where the first and second base stations are nodes in a WiMAX or LTE network. A message may be received from the subscriber station containing first and second information, and a range ring determined from the first base station using the first information. A location hyperbola may be determined using the second information wherein the location hyperbola has the first and second base stations as foci. A location of the subscriber station may be estimated using the range ring and the location hyperbola.

摘要翻译： 一种用于估计从第一基站接收第一信号的用户台的位置并从第二基站接收第二信号的系统和方法，其中所述第一和第二基站是WiMAX或LTE网络中的节点。 可以从用户站接收包含第一和第二信息的消息，以及使用第一信息从第一基站确定的范围环。 可以使用第二信息来确定位置双曲线，其中位置双曲线具有第一和第二基站作为焦点。 可以使用范围环和位置双曲线来估计订户站的位置。

公开(公告)号：US08548492B2

公开(公告)日：2013-10-01

申请号：US12951474

申请日：2010-11-22

申请人： Tariqul Islam ,  John Carlson

发明人： Tariqul Islam ,  John Carlson

IPC分类号： H04W24/00

CPC分类号： H04W64/00

摘要： A system and method for estimating a location of a subscriber station receiving a first signal from a first base station and receiving a second signal from a second base station where the first and second base stations are nodes in a WiMAX or LTE network. A message may be received from the subscriber station containing first and second information, and a range ring determined from the first base station using the first information. A location hyperbola may be determined using the second information wherein the location hyperbola has the first and second base stations as foci. A location of the subscriber station may be estimated using the range ring and the location hyperbola.

公开(公告)号：US20120028653A1

公开(公告)日：2012-02-02

申请号：US13269911

申请日：2011-10-10

申请人： Tariqul Islam ,  John Carlson ,  Khalid Al-Mufti ,  Ariful Hannan

发明人： Tariqul Islam ,  John Carlson ,  Khalid Al-Mufti ,  Ariful Hannan

IPC分类号： H04W24/00

CPC分类号： H04W24/00 ,  G01S5/0215 ,  H04W64/00

摘要： A system and method for estimating a location of a wireless device in a wireless communication system having a plurality of nodes and a plurality of location measurement units (“LMUs”). A set of signal samples from a first wireless device and a second wireless device may be collected by one or more LMUs in a search window. A first time of arrival (“TOA”) is determined, and a second search window is estimated as a function of the first TOA. A second TOA may be determined within the second search window at a second node or one of the LMUs from the set of signal samples. A range estimate of the wireless device may then be determined, and an estimated location of the wireless device may be determined as a function of the first uplink TOA, the second uplink TOA, or the range estimate and second TOA.

摘要翻译： 一种用于在具有多个节点和多个位置测量单元（“LMU”）的无线通信系统中估计无线设备的位置的系统和方法。 来自第一无线设备和第二无线设备的一组信号样本可以由搜索窗口中的一个或多个LMU收集。 第一次到达（“TOA”）被确定，并且第二个搜索窗口被估计为第一个TOA的函数。 可以在第二个节点的第二个搜索窗口中确定第二个TOA，或者从该组信号样本中确定一个LMU。 然后可以确定无线设备的范围估计，并且可以根据第一上行链路TOA，第二上行链路TOA或范围估计和第二TOA来确定无线设备的估计位置。

公开(公告)号：US08447319B2

公开(公告)日：2013-05-21

申请号：US12104250

申请日：2008-04-16

申请人： John Carlson ,  Tariqul Islam ,  Selcuk Mazlum

发明人： John Carlson ,  Tariqul Islam ,  Selcuk Mazlum

IPC分类号： H04W24/00

CPC分类号： H04W24/10 ,  G01S5/0205 ,  G01S5/10 ,  G01S19/46 ,  H04W64/00 ,  H04W84/04

摘要： A system and method for estimating a location of a wireless device receiving signals from a plurality of nodes of a communication system. A first value may be determined based on a network timing characteristic for one of the nodes, and a second value may be determined based on a network measurement report characteristic. An observed time difference of arrival (“OTDOA”) hyperbola may then be calculated based on the first and second values, and a location of the wireless device estimated as a function of the OTDOA hyperbola.

摘要翻译： 一种用于估计从通信系统的多个节点接收信号的无线设备的位置的系统和方法。 可以基于节点之一的网络定时特性来确定第一值，并且可以基于网络测量报告特性来确定第二值。 然后可以基于第一和第二值以及作为OTDOA双曲线的函数估计的无线设备的位置来计算观察到的到达时间差（“OTDOA”）双曲线。

公开(公告)号：US08331956B2

公开(公告)日：2012-12-11

申请号：US13269911

申请日：2011-10-10

申请人： Tariqul Islam ,  John Carlson ,  Khalid Al-Mufti ,  Ariful Hannan

发明人： Tariqul Islam ,  John Carlson ,  Khalid Al-Mufti ,  Ariful Hannan

IPC分类号： H04W24/00

CPC分类号： H04W24/00 ,  G01S5/0215 ,  H04W64/00

摘要： A system and method for estimating a location of a wireless device in a wireless communication system having a plurality of nodes and a plurality of location measurement units (“LMUs”). A set of signal samples from a first wireless device and a second wireless device may be collected by one or more LMUs in a search window. A first time of arrival (“TOA”) is determined, and a second search window is estimated as a function of the first TOA. A second TOA may be determined within the second search window at a second node or one of the LMUs from the set of signal samples. A range estimate of the wireless device may then be determined, and an estimated location of the wireless device may be determined as a function of the first uplink TOA, the second uplink TOA, or the range estimate and second TOA.

摘要翻译： 一种用于在具有多个节点和多个位置测量单元（LMU）的无线通信系统中估计无线设备的位置的系统和方法。 来自第一无线设备和第二无线设备的一组信号样本可以由搜索窗口中的一个或多个LMU收集。 确定第一次到达时间（TOA），并且估计第二个搜索窗口作为第一个TOA的函数。 可以在第二个节点的第二个搜索窗口中确定第二个TOA，或者从该组信号样本中确定一个LMU。 然后可以确定无线设备的范围估计，并且可以根据第一上行链路TOA，第二上行链路TOA或范围估计和第二TOA来确定无线设备的估计位置。