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    Method and apparatus for canceling pilot interference in a wireless communication system
    2.
    发明申请
    Method and apparatus for canceling pilot interference in a wireless communication system 审中-公开
    用于消除无线通信系统中的导频干扰的方法和装置

    公开(公告)号：US20050013350A1

    公开(公告)日：2005-01-20

    申请号：US10921428

    申请日：2004-08-17

    申请人： Alessandro Coralli ,  Henry Pfister ,  Jilei Hou ,  John Smee ,  Roberto Padovani ,  Brian Butler ,  Jeffrey Levin ,  Thomas Wilborn ,  Paul Bender

    发明人： Alessandro Coralli ,  Henry Pfister ,  Jilei Hou ,  John Smee ,  Roberto Padovani ,  Brian Butler ,  Jeffrey Levin ,  Thomas Wilborn ,  Paul Bender

    IPC分类号： H04B1/707

    CPC分类号： H04B1/7107 ,  H04B2201/70701

    摘要： Methods and systems for estimating and canceling pilot interference in a wireless (e.g., CDMA) communication system. In one method, a received signal comprised of a number of signal instances, each including a pilot, is initially processed to provide data samples. Each signal instance's pilot interference may be estimated by despreading the data samples with a spreading sequence for the signal instance, channelizing the despread data to provide pilot symbols, filtering the pilot symbols to estimate the channel response of the signal instance, and multiplying the estimated channel response with the spreading sequence. The pilot interference estimates due to a plurality of interfering multipaths are accumulated to derive the total pilot interference, which is subtracted from the data samples to provide pilot-canceled data samples. These samples are then processed to derive demodulated data for each of at least one (desired) signal instance in the received signal.

    摘要翻译： 用于估计和消除无线（例如，CDMA）通信系统中的导频干扰的方法和系统。 在一种方法中，最初处理包括多个信号实例（每个包括导频）的接收信号以提供数据样本。 每个信号实例的导频干扰可以通过用信号实例的扩展序列解扩数据样本来估计，对解扩数据进行信道化以提供导频符号，对导频符号进行滤波以估计信号实例的信道响应，并将估计信道 响应与扩展序列。 由多个干扰多径导致的导频干扰估计被累加以导出总导频干扰，其从数据样本中减去以提供导频取消的数据采样。 然后处理这些样本以便为接收信号中的至少一个（期望的）信号实例中的每一个导出解调数据。

    Reverse link interference cancellation
    3.
    发明申请
    Reverse link interference cancellation 有权
    反向链路干扰消除

    公开(公告)号：US20070040704A1

    公开(公告)日：2007-02-22

    申请号：US11334977

    申请日：2006-01-18

    申请人： John Smee ,  Jilei Hou ,  Roberto Padovani ,  Peter Black ,  Kenneth Easton

    发明人： John Smee ,  Jilei Hou ,  Roberto Padovani ,  Peter Black ,  Kenneth Easton

    IPC分类号： B64D47/06

    CPC分类号： H04B1/7107 ,  H04W52/12

    摘要： A method and system for reverse link interference cancellation. One method comprises demodulating and decoding at least one signal sent from at least one access terminal and received by a first base station, sending demodulated, decoded information of the signal to a second base station, reconstructing the signal at the second base station, and subtracting the reconstructed signal from a buffer at the second base station.

    摘要翻译： 一种用于反向链路干扰消除的方法和系统。 一种方法包括对从至少一个接入终端发送并由第一基站接收的至少一个信号进行解调和解码，向第二基站发送解调后的解码的信号信息，重构第二基站的信号，以及减去 来自第二基站的缓冲器的重建信号。

    Method and apparatus for canceling pilot interference in a wireless communication system
    8.
    发明授权
    Method and apparatus for canceling pilot interference in a wireless communication system 有权
    用于消除无线通信系统中的导频干扰的方法和装置

    公开(公告)号：US08644264B2

    公开(公告)日：2014-02-04

    申请号：US12900394

    申请日：2010-10-07

    申请人： Alessandro Vanelli Coralli ,  Henry David Pfister ,  Jilei Hou ,  John Edward Smee ,  Roberto Padovani ,  Brian K. Butler ,  Jeffrey A. Levin ,  Thomas B. Wilborn ,  Paul E. Bender

    发明人： Alessandro Vanelli Coralli ,  Henry David Pfister ,  Jilei Hou ,  John Edward Smee ,  Roberto Padovani ,  Brian K. Butler ,  Jeffrey A. Levin ,  Thomas B. Wilborn ,  Paul E. Bender

    IPC分类号： H03D1/04

    CPC分类号： H04B1/7107 ,  H04B2201/70701

    摘要： Methods and systems for estimating and canceling pilot interference in a wireless (e.g., CDMA) communication system. In one method, a received signal comprised of a number of signal instances, each including a pilot, is initially processed to provide data samples. Each signal instance's pilot interference may be estimated by despreading the data samples with a spreading sequence for the signal instance, channelizing the despread data to provide pilot symbols, filtering the pilot symbols to estimate the channel response of the signal instance, and multiplying the estimated channel response with the spreading sequence. The pilot interference estimates due to a plurality of interfering multipaths are accumulated to derive the total pilot interference, which is subtracted from the data samples to provide pilot-canceled data samples. These samples are then processed to derive demodulated data for each of at least one (desired) signal instance in the received signal.

    摘要翻译： 用于估计和消除无线（例如，CDMA）通信系统中的导频干扰的方法和系统。 在一种方法中，最初处理包括多个信号实例（每个包括导频）的接收信号以提供数据样本。 每个信号实例的导频干扰可以通过用信号实例的扩展序列解扩数据样本来估计，对解扩数据进行信道化以提供导频符号，对导频符号进行滤波以估计信号实例的信道响应，并将估计信道 响应与扩展序列。 由多个干扰多径导致的导频干扰估计被累加以导出总导频干扰，其从数据样本中减去以提供导频取消的数据采样。 然后处理这些样本以便为接收信号中的至少一个（期望的）信号实例中的每一个导出解调数据。

    PILOT INTERFERENCE CANCELLATION
    9.
    发明申请
    PILOT INTERFERENCE CANCELLATION 有权
    引导干扰消除

    公开(公告)号：US20090252201A1

    公开(公告)日：2009-10-08

    申请号：US12484572

    申请日：2009-06-15

    申请人： John Edward Smee ,  Jilei Hou ,  Roberto Padovani ,  Peter John Black ,  Kenneth D. Easton

    发明人： John Edward Smee ,  Jilei Hou ,  Roberto Padovani ,  Peter John Black ,  Kenneth D. Easton

    IPC分类号： H04B1/707 ,  H04B1/10

    CPC分类号： H04B1/7107 ,  H04B1/71075 ,  H04B2201/70701 ,  H04L25/0224 ,  H04W52/12

    摘要： Techniques for generalized pilot interference cancellation in a communications receiver. In an exemplary embodiment, a residual pilot is cancelled from a post-traffic cancellation signal following initial first-pass pilot cancellation. Residual pilot cancellation is achieved by adding the first-pass cancelled pilot as earlier stored in memory back to the post-traffic cancellation signal, and pilot filtering the resulting signal to generate an improved pilot interference estimate. In an alternative exemplary embodiment, an arbitrary number of iterations may be applied to generate the pilot interference estimate by successively storing each generated pilot interference estimate in memory.

    摘要翻译： 通信接收机中广义导频干扰消除技术。 在示例性实施例中，在初次首次通过导频消除之后，从后业务消除信号中消除残余导频。 剩余导频消除是通过将先前存储在存储器中的首次通过取消的导频返回到业务后消除信号来实现的，并对所得到的信号进行导频过滤以产生改进的导频干扰估计。 在替代示例性实施例中，可以应用任意数量的迭代来通过在存储器中连续地存储每个产生的导频干扰估计来生成导频干扰估计。

    Method and apparatus for canceling pilot interference in a wireless communication system
    10.
    发明授权
    Method and apparatus for canceling pilot interference in a wireless communication system 有权
    用于消除无线通信系统中的导频干扰的方法和装置

    公开(公告)号：US08611311B2

    公开(公告)日：2013-12-17

    申请号：US11173504

    申请日：2005-06-30

    申请人： Alessandro Vanelli Coralli ,  Henry David Pfister ,  Jilei Hou ,  John Edward Smee ,  Roberto Padovani ,  Brian K Butler ,  Jeffrey A Levin ,  Thomas B Wilborn ,  Paul E Bender

    发明人： Alessandro Vanelli Coralli ,  Henry David Pfister ,  Jilei Hou ,  John Edward Smee ,  Roberto Padovani ,  Brian K Butler ,  Jeffrey A Levin ,  Thomas B Wilborn ,  Paul E Bender

    IPC分类号： H03D1/04

    CPC分类号： H04B1/7107 ,  H04B2201/70701

    摘要： Methods and systems for estimating and canceling pilot interference in a wireless (e.g., CDMA) communication system. In one method, a received signal comprised of a number of signal instances, each including a pilot, is initially processed to provide data samples. Each signal instance's pilot interference may be estimated by despreading the data samples with a spreading sequence for the signal instance, channelizing the despread data to provide pilot symbols, filtering the pilot symbols to estimate the channel response of the signal instance, and multiplying the estimated channel response with the spreading sequence. The pilot interference estimates due to a plurality of interfering multipaths are accumulated to derive the total pilot interference, which is subtracted from the data samples to provide pilot-canceled data samples. These samples are then processed to derive demodulated data for each of at least one (desired) signal instance in the received signal.

    摘要翻译： 用于估计和消除无线（例如，CDMA）通信系统中的导频干扰的方法和系统。 在一种方法中，最初处理包括多个信号实例（每个包括导频）的接收信号以提供数据样本。 每个信号实例的导频干扰可以通过用信号实例的扩展序列解扩数据样本来估计，对解扩数据进行信道化以提供导频符号，对导频符号进行滤波以估计信号实例的信道响应，并将估计信道 响应与扩展序列。 由多个干扰多径导致的导频干扰估计被累加以导出总导频干扰，其从数据样本中减去以提供导频取消的数据采样。 然后处理这些样本以便为接收信号中的至少一个（期望的）信号实例中的每一个导出解调数据。