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    Position determination system that uses A cellular communication system
    1.
    发明授权
    Position determination system that uses A cellular communication system 有权
    使用蜂窝通信系统的位置确定系统

    公开(公告)号：US07877100B2

    公开(公告)日：2011-01-25

    申请号：US12482299

    申请日：2009-06-10

    申请人： Roland R. Rick ,  Ivan Fernandez-Corbaton ,  Jeremy M. Stein ,  Messay Amerga ,  Borislav Ristic ,  Ashok Bhatia

    发明人： Roland R. Rick ,  Ivan Fernandez-Corbaton ,  Jeremy M. Stein ,  Messay Amerga ,  Borislav Ristic ,  Ashok Bhatia

    IPC分类号： H04W24/00

    CPC分类号： H04W64/00 ,  G01S5/0257 ,  G01S19/48

    摘要： A position determination system and apparatus for utilizing a network of cellular base stations to determine position of a mobile station includes taking a plurality of statistically independent data measurements of the pilot signals from the base stations. Each of the data measurements includes an earliest time of arrival, providing multiple independent measurements for each of the pilot signals. For each cellular base station, a representative measurement is calculated responsive to the independent measurements, which is used to determine position of the mobile station using an AFLT algorithm and/or in conjunction with a GPS algorithm. In some embodiments, the data measurements for each pilot signal further include an RMSE estimate and time of measurement for each time of arrival, and an energy measurement for all resolvable paths. If the mobile station comprises a cell phone, a cell search list and a GPS search list may be provided by a cell base station.

    摘要翻译： 用于利用蜂窝基站的网络来确定移动站的位置的位置确定系统和装置包括对来自基站的导频信号进行多个统计上独立的数据测量。 每个数据测量包括最早的到达时间，为每个导频信号提供多个独立测量。 对于每个蜂窝基站，响应于使用AFLT算法和/或结合GPS算法来确定移动站的位置的独立测量来计算代表性测量。 在一些实施例中，每个导频信号的数据测量还包括对于每个到达时间的RMSE估计和测量时间以及针对所有可解析路径的能量测量。 如果移动站包括蜂窝电话，小区搜索列表和GPS搜索列表可以由小区基站提供。

    Position Determination System That Uses A Cellular Communication System
    2.
    发明申请
    Position Determination System That Uses A Cellular Communication System 有权
    使用蜂窝通信系统的位置确定系统

    公开(公告)号：US20090305726A1

    公开(公告)日：2009-12-10

    申请号：US12482299

    申请日：2009-06-10

    申请人： Roland R. Rick ,  Ivan Fernandez-Corbaton ,  Jeremy M. Stein ,  Messay Amerga ,  Borislav Ristic ,  Ashok Bhatia

    发明人： Roland R. Rick ,  Ivan Fernandez-Corbaton ,  Jeremy M. Stein ,  Messay Amerga ,  Borislav Ristic ,  Ashok Bhatia

    IPC分类号： H04W24/00 ,  G01S1/00

    CPC分类号： H04W64/00 ,  G01S5/0257 ,  G01S19/48

    摘要： A position determination system and apparatus for utilizing a network of cellular base stations to determine position of a mobile station includes taking a plurality of statistically independent data measurements of the pilot signals from the base stations. Each of the data measurements includes an earliest time of arrival, providing multiple independent measurements for each of the pilot signals. For each cellular base station, a representative measurement is calculated responsive to the independent measurements, which is used to determine position of the mobile station using an AFLT algorithm and/or in conjunction with a GPS algorithm. In some embodiments, the data measurements for each pilot signal further include an RMSE estimate and time of measurement for each time of arrival, and an energy measurement for all resolvable paths. If the mobile station comprises a cell phone, a cell search list and a GPS search list may be provided by a cell base station.

    摘要翻译： 用于利用蜂窝基站的网络来确定移动站的位置的位置确定系统和装置包括对来自基站的导频信号进行多个统计上独立的数据测量。 每个数据测量包括最早的到达时间，为每个导频信号提供多个独立测量。 对于每个蜂窝基站，响应于使用AFLT算法和/或结合GPS算法来确定移动站的位置的独立测量来计算代表性测量。 在一些实施例中，每个导频信号的数据测量还包括对于每个到达时间的RMSE估计和测量时间以及针对所有可解析路径的能量测量。 如果移动站包括蜂窝电话，小区搜索列表和GPS搜索列表可以由小区基站提供。

    Parameter estimator configured to distinguish between peaks and sidelobes of correlation function
    5.
    发明授权
    Parameter estimator configured to distinguish between peaks and sidelobes of correlation function 有权
    参数估计器被配置为区分相关函数的峰值和旁瓣

    公开(公告)号：US07308022B2

    公开(公告)日：2007-12-11

    申请号：US10060885

    申请日：2002-01-29

    申请人： Roland R. Rick ,  Messay Amerga ,  Jeremy M. Stein ,  Ivan Fernandez-Corbaton

    发明人： Roland R. Rick ,  Messay Amerga ,  Jeremy M. Stein ,  Ivan Fernandez-Corbaton

    IPC分类号： H04B1/00

    CPC分类号： G01S5/0215 ,  G01S5/0221 ,  G01S19/22 ,  H04B1/70755 ,  H04B1/7117

    摘要： A parameter estimator for estimating one or more parameter(s) from a signal is described. A correlation function is derived from the signal, and the correlation function analyzed to determine if one or more first peak(s) are present, and, if so, distinguishable from the sidelobe(s) of a second peak. If the one or more first peak(s) are present and distinguishable from the sidelobe(s) of the second peak, the one or more parameter(s) are estimated from the one or more first peak(s). If the one or more first peak(s) are not present, or, if present, are not distinguishable from the sidelobe(s) of the second peak, the one or more parameter(s) are estimated from the second peak. The parameter estimator may be employed in a subscriber station to estimate a parameter such as the time of arrival of one or more base station or sector pilot signals in a wireless communication system. This information may be utilized in an overall advanced forward link trilateration (AFLT) process for estimating the location of the subscriber station.

    摘要翻译： 描述了用于从信号估计一个或多个参数的参数估计器。 从信号中导出相关函数，分析相关函数以确定是否存在一个或多个第一峰，如果是，则与第二峰的旁瓣区分开。 如果一个或多个第一峰存在并且可与第二峰的旁瓣区分开，则从一个或多个第一峰估计一个或多个参数。 如果一个或多个第一峰不存在，或者如果存在，则不能与第二峰的旁瓣区分开，则从第二峰估计一个或多个参数。 可以在用户台中使用参数估计器来估计诸如无线通信系统中的一个或多个基站或扇区导频信号的到达时间的参数。 该信息可以用于用于估计用户台的位置的总体高级前向链路三边测量（AFLT）过程。

    Methods and systems for improved channel estimation in multi-carrier systems
    7.
    发明授权
    Methods and systems for improved channel estimation in multi-carrier systems 有权
    在多载波系统中改进信道估计的方法和系统

    公开(公告)号：US08989311B2

    公开(公告)日：2015-03-24

    申请号：US12888242

    申请日：2010-09-22

    申请人： Jeremy M. Stein ,  James E. Beckman ,  Joseph C. Chan ,  Michael Leviant

    发明人： Jeremy M. Stein ,  James E. Beckman ,  Joseph C. Chan ,  Michael Leviant

    IPC分类号： H04L27/06 ,  H03K9/00 ,  H04L25/02

    CPC分类号： H04L25/0232 ,  H04L25/024

    摘要： Wireless receiver circuits and methods include algorithms for switching between a least-squares/minimum mean-square error method of channel estimation known as the CE algorithm, and a continuous plot method of channel estimation known as the CPCE algorithm based upon channel characteristics to improve reception of wireless communications in different reception conditions. In an embodiment, the CPCE algorithm may be selected by a processor for use in channel estimation when a calculated number of candidate paths is less than or equal to a first threshold value, a calculated power ratio of the L strongest paths to the total of all paths is greater than or equal to a second threshold value, and the maximum Automatic Gain Control variation is greater than or equal to a third threshold value. Threshold values may be based on field testing, and set to values at which the CE or CPCE algorithm exhibits better performance.

    摘要翻译： 无线接收机电路和方法包括用于在被称为CE算法的信道估计的最小平方/最小均方误差方法和基于信道特性的称为CPCE算法的信道估计的连续绘图方法之间进行切换的算法，以改善接收 的无线通信在不同的接收条件下。 在一个实施例中，当计算出的候选路径数小于或等于第一阈值时，由处理器选择用于信道估计的CPCE算法，计算的L个最强路径与所有全部路径的总功率的计算功率比 路径大于或等于第二阈值，并且最大自动增益控制变化大于或等于第三阈值。 阈值可以基于现场测试，并将其设置为CE或CPCE算法表现出更好性能的值。

    Apparatus and methods for QAM modulation using dual polar modulation
    8.
    发明授权
    Apparatus and methods for QAM modulation using dual polar modulation 失效
    用于使用双极化调制的QAM调制的装置和方法

    公开(公告)号：US08660208B2

    公开(公告)日：2014-02-25

    申请号：US12907830

    申请日：2010-10-19

    申请人： Avigdor Brillant ,  David Pezo ,  Haim M. Weissman ,  Jeremy M. Stein

    发明人： Avigdor Brillant ,  David Pezo ,  Haim M. Weissman ,  Jeremy M. Stein

    IPC分类号： H04L27/36

    CPC分类号： H04L27/36

    摘要： Apparatus and methods for QAM modulation are disclosed using dual polar modulation. QAM modulation of a signal is accomplished by translating a QAM signal into two phasors having the same or constant amplitude and then phase shifting one of the phasor by 180 degrees for a differential load. The phasors are then polar modulated such that, when differentially combined in the load through summation or superposition, a QAM modulated symbol results. The use of constant amplitude phasors when power amplified for transmission of QAM modulated signals allows amplifiers to be operated in a saturation mode with greater efficiency than conventional amplifiers used in QAM modulation, which operate in a less efficient linear mode to effect amplitude modulation. Additionally, differential combining of the phasors affords relaxation of the turns of a transformer used in amplifying the phasors.

    摘要翻译： 使用双极化调制公开了用于QAM调制的装置和方法。 信号的QAM调制通过将QAM信号转换成具有相同或恒定幅度的两个相量并且然后将相量中的一个相移相差180度来实现差分负载。 然后，相量被极化调制，使得当通过求和或叠加在负载中差分地组合时，产生QAM调制符号。 当用于QAM调制信号的传输的功率放大时，使用恒定幅度相量允许放大器以比在QAM调制中使用的常规放大器更高的效率在饱和模式下操作，其在低效线性模式下工作以实现幅度调制。 此外，相量的差分组合提供用于放大相量的变压器的匝数的松弛。

    METHODS AND APPARATUS FOR SIGNAL CONDITIONING FOR POLAR TRANSMITTERS
    9.
    发明申请
    METHODS AND APPARATUS FOR SIGNAL CONDITIONING FOR POLAR TRANSMITTERS 有权
    用于极性发射器信号调节的方法和装置

    公开(公告)号：US20130022148A1

    公开(公告)日：2013-01-24

    申请号：US13331206

    申请日：2011-12-20

    申请人： Ariel Y. Sagi ,  Jeremy M. Stein

    发明人： Ariel Y. Sagi ,  Jeremy M. Stein

    IPC分类号： H04L25/49

    CPC分类号： H04L27/361

    摘要： Methods, systems, devices, and apparatuses for signal condition of polar transmitters are discussed this patent application. According to one embodiment, a frequency limiting mechanism for a polar transmitter can perform minimal distortion frequency limiting to comply with the polar transmitter requirements while meeting emissions specifications. Embodiments of the present invention may be utilized as features or components of wireless communication devices to enable minimal distortion to information carrying signals and to meet emissions specifications. Other aspects, embodiments, and features are claimed and discussed above.

    摘要翻译： 本专利申请中讨论了极性发射机信号状态的方法，系统，设备和装置。 根据一个实施例，用于极性发射机的频率限制机构可以执行最小失真频率限制，以符合极性发射机要求，同时满足排放规范。 本发明的实施例可以用作无线通信设备的特征或组件，以实现信息携带信号的最小失真并满足排放规范。 上面要求和讨论的其他方面，实施例和特征。

    POSITION DETERMINATION WITH PEER-TO-PEER COMMUNICATION
    10.
    发明申请
    POSITION DETERMINATION WITH PEER-TO-PEER COMMUNICATION 审中-公开
    同步通信的位置确定

    公开(公告)号：US20120244880A1

    公开(公告)日：2012-09-27

    申请号：US13442859

    申请日：2012-04-10

    申请人： Chong U. LEE ,  Jeremy M. Stein ,  Leonid Sheynblat

    发明人： Chong U. LEE ,  Jeremy M. Stein ,  Leonid Sheynblat

    IPC分类号： H04W4/02

    CPC分类号： G01S5/06 ,  G01S5/0081 ,  G01S5/0221 ,  G01S5/0226 ,  G01S5/0289 ,  G01S5/14 ,  G01S13/74 ,  G01S13/876 ,  G01S19/46 ,  G01S2205/008 ,  H04W64/00 ,  H04W84/18

    摘要： For position determination with peer-to-peer communication, a target terminal broadcasts a request for assistance in determining its position. At least one ranging terminal receives the request. Each ranging terminal sends a response with a time of arrival (TOA) measurement for the request and the position of the ranging terminal. For two-way peer-to-peer, the target terminal receives at least one response from the at least one ranging terminal, obtains a TOA measurement for each response, estimates the distance to each ranging terminal based on the TOA measurement for the request and/or the TOA measurement for the response, and computes a position estimate for itself based on the estimated distance and the position for each ranging terminal. For one-way peer-to-peer, a network entity receives at least one response from the at least one ranging terminal, computes a position estimate for the target terminal, and sends the position estimate to the target terminal.

    摘要翻译： 为了通过点对点通信进行位置确定，目标终端在确定其位置时广播请求协助。 至少一个测距终端接收请求。 每个测距终端都会发送响应，其中包含请求的到达时间（TOA）测量和测距终端的位置。 对于双向对等，目标终端从至少一个测距终端接收至少一个响应，获得每个响应的TOA测量，基于该请求的TOA测量估计到每个测距终端的距离;以及 /或用于响应的TOA测量，并且基于每个测距终端的估计距离和位置来计算其自身的位置估计。 对于单向对等体，网络实体从至少一个测距终端接收至少一个响应，计算目标终端的位置估计，并将位置估计发送给目标终端。