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。

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：US08073463B2

公开(公告)日：2011-12-06

申请号：US12246156

申请日：2008-10-06

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：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：US20130143598A1

公开(公告)日：2013-06-06

申请号：US13309975

申请日：2011-12-02

申请人： Navin Srinivasan ,  Ariful Hannan ,  Tariqul Islam

发明人： Navin Srinivasan ,  Ariful Hannan ,  Tariqul Islam

IPC分类号： H04W24/00

CPC分类号： H04W64/00 ,  G01S5/021 ,  G01S5/06 ,  G01S5/14

摘要： A method and system for determining the location of a mobile device in a communications network or the proximity of the device to a node in the network. A location request may be received for a mobile device served by a base station in the network. A set of nodes associated with the serving base station may then be tasked and downlink data collected at a first node, the downlink data from a downlink signal received from the serving base station. Downlink frame timing may then be determined as a function of the collected downlink data and uplink data collected at a second node as a function of the determined downlink frame timing. A geographic location for the device or proximity thereof to a node may be determined as a function of the collected uplink data.

摘要翻译： 一种用于确定移动设备在通信网络中的位置或设备与网络中的节点的接近度的方法和系统。 可以为由网络中的基站服务的移动设备接收位置请求。 然后可以对与服务基站相关联的一组节点进行任务，并且在第一节点处收集下行链路数据，来自从服务基站接收的下行链路信号的下行链路数据。 然后可以根据所确定的下行链路帧定时的函数来确定下行链路帧定时作为在第二节点处收集的收集的下行链路数据和上行链路数据的函数。 可以根据收集的上行链路数据来确定设备的地理位置或其与节点的接近性。

公开(公告)号：US20110019607A1

公开(公告)日：2011-01-27

申请号：US12841828

申请日：2010-07-22

申请人： Andrew Beck ,  Tosin Osinusi ,  Ariful Hannan ,  Tariqul Islam

发明人： Andrew Beck ,  Tosin Osinusi ,  Ariful Hannan ,  Tariqul Islam

IPC分类号： H04J3/08

CPC分类号： H04W24/08 ,  H04B7/2606 ,  H04W84/047

摘要： A system and method for a network analysis system operating in a wireless communication system with repeaters is disclosed. Embodiments of the system and method enable the network analysis system to determine if signals being received by the network receivers arrive directly from a target mobile appliance or if the signals are passing through a repeater. The repeaters, through an augmentation, measure attributes of a received signal and based on these attributes the system determine whether the signal is served by a repeater or other network device.

摘要翻译： 公开了一种在具有中继器的无线通信系统中操作的网络分析系统的系统和方法。 系统和方法的实施例使得网络分析系统能够确定网络接收器正在接收的信号是否直接从目标移动设备到达，或者信号是否通过中继器。 中继器通过增强来测量接收信号的属性，并且基于这些属性，系统确定该信号是由中继器还是其他网络设备服务。

公开(公告)号：US20120129550A1

公开(公告)日：2012-05-24

申请号：US13388384

申请日：2009-08-05

申请人： Ariful Hannan ,  Tariqul Islam

发明人： Ariful Hannan ,  Tariqul Islam

IPC分类号： H04W24/00

CPC分类号： H04W64/00 ,  G01S5/0036 ,  G01S5/0221 ,  G01S5/0257 ,  G01S5/06 ,  G01S5/10

摘要： A system and method for estimating a location of a wireless device receiving signals from plural nodes of a communications network. A wireless device may be directed to transmit a first signal having one or more predetermined parameters. At one or more location measurement units (“LMU”) an uplink time of arrival (“TOA”) measurement between the wireless device and one or more of the plural nodes or LMUs may be determined as a function of the first signal transmitted from the wireless device. Downlink signal measurements of signals received by the wireless device may be collected, and a location of the wireless device determined as a function of the uplink TOA measurements and the collected downlink signal measurements.

摘要翻译： 一种用于估计从通信网络的多个节点接收信号的无线设备的位置的系统和方法。 无线设备可以被引导以发送具有一个或多个预定参数的第一信号。 在一个或多个位置测量单元（“LMU”）处，无线设备与多个节点或LMU中的一个或多个的上行链路到达时间（“TOA”）测量可以被确定为根据从第 无线设备。 可以收集由无线设备接收的信号的下行链路信号测量，并且根据上行链路TOA测量和所收集的下行链路信号测量确定无线设备的位置。

公开(公告)号：US08787942B2

公开(公告)日：2014-07-22

申请号：US13388384

申请日：2009-08-05

申请人： Ariful Hannan ,  Tariqul Islam

发明人： Ariful Hannan ,  Tariqul Islam

IPC分类号： H04W24/00

CPC分类号： H04W64/00 ,  G01S5/0036 ,  G01S5/0221 ,  G01S5/0257 ,  G01S5/06 ,  G01S5/10

摘要： A system and method for estimating a location of a wireless device receiving signals from plural nodes of a communications network. A wireless device may be directed to transmit a first signal having one or more predetermined parameters. At one or more location measurement units (“LMU”) an uplink time of arrival (“TOA”) measurement between the wireless device and one or more of the plural nodes or LMUs may be determined as a function of the first signal transmitted from the wireless device. Downlink signal measurements of signals received by the wireless device may be collected, and a location of the wireless device determined as a function of the uplink TOA measurements and the collected downlink signal measurements.

摘要翻译： 一种用于估计从通信网络的多个节点接收信号的无线设备的位置的系统和方法。 无线设备可以被引导以发送具有一个或多个预定参数的第一信号。 在一个或多个位置测量单元（“LMU”）处，无线设备与多个节点或LMU中的一个或多个的上行链路到达时间（“TOA”）测量可以被确定为根据从第 无线设备。 可以收集由无线设备接收的信号的下行链路信号测量，并且根据上行链路TOA测量和所收集的下行链路信号测量确定无线设备的位置。

公开(公告)号：US08331954B2

公开(公告)日：2012-12-11

申请号：US12841828

申请日：2010-07-22

申请人： Andrew Beck ,  Tosin Osinusi ,  Ariful Hannan ,  Tariqul Islam

发明人： Andrew Beck ,  Tosin Osinusi ,  Ariful Hannan ,  Tariqul Islam

IPC分类号： H04W24/00 ,  H04W64/00

CPC分类号： H04W24/08 ,  H04B7/2606 ,  H04W84/047

摘要： A system and method for a network analysis system operating in a wireless communication system with repeaters is disclosed. Embodiments of the system and method enable the network analysis system to determine if signals being received by the network receivers arrive directly from a target mobile appliance or if the signals are passing through a repeater. The repeaters, through an augmentation, measure attributes of a received signal and based on these attributes the system determine whether the signal is served by a repeater or other network device.

摘要翻译： 公开了一种在具有中继器的无线通信系统中操作的网络分析系统的系统和方法。 系统和方法的实施例使得网络分析系统能够确定网络接收器正在接收的信号是否直接从目标移动设备到达，或者信号是否通过中继器。 中继器通过增强来测量接收信号的属性，并且基于这些属性，系统确定信号是由中继器还是其他网络设备服务。

公开(公告)号：US08223821B2

公开(公告)日：2012-07-17

申请号：US12491371

申请日：2009-06-25

申请人： Ariful Hannan ,  John Carlson

发明人： Ariful Hannan ,  John Carlson

IPC分类号： H04L25/20

CPC分类号： H04B7/15535 ,  H04B1/70718

摘要： A method for detecting an IS-95 signal without knowledge of a spreading code for the IS-95 signal is provided. A received baseband signal is rotated through a plurality of phase-shifts. For each phase-shifted baseband signal, an in-phase component or a quadrature component of the phase-shifted baseband signal is realigned. The in-phase and quadrature components are multiplied by a PN short code to partially despread the components. The partially despread in-phase and quadrature components are multiplied and integrated. The integrated despread in-phase and quadrature components are compared to a threshold value. In response to exceeding the threshold value, the received baseband signal is identified as an IS-95 signal. The method may be implemented on a repeater for repeating signals between multiple sources.

摘要翻译： 提供了一种在不了解IS-95信号的扩展码的情况下检测IS-95信号的方法。 接收到的基带信号通过多个相移旋转。 对于每个相移基带信号，重新对准相移基带信号的同相分量或正交分量。 同相和正交分量乘以PN短码以部分地解扩组件。 将部分解扩的同相和正交分量相乘并积分。 将集成的解扩同相和正交分量与阈值进行比较。 响应于超过阈值，接收的基带信号被识别为IS-95信号。 该方法可以在中继器上实现，用于在多个源之间重复信号。