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。

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。

公开(公告)号：US20110069736A1

公开(公告)日：2011-03-24

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： H04B1/10 ,  H04B1/69

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。

公开(公告)号：US08406695B2

公开(公告)日：2013-03-26

申请号：US11193546

申请日：2005-07-29

申请人： Jilei Hou ,  Henry David Pfister ,  John Edward Smee ,  Stefano Tomasin

发明人： Jilei Hou ,  Henry David Pfister ,  John Edward Smee ,  Stefano Tomasin

IPC分类号： H04B1/00 ,  H04B15/00

CPC分类号： H04B1/7103 ,  H04B2201/70701

摘要： A method and system for interference cancellation (IC). One aspect relates to traffic interference cancellation. Another aspect relates to joint IC for pilot, overhead and data. Another aspect relates to improved channel estimation. Another aspect relates to adaptation of transmit subchannel gains.

摘要翻译： 一种用于干扰消除（IC）的方法和系统。 一方面涉及交通干扰消除。 另一方面涉及用于飞行员，间接费用和数据的联合IC。 另一方面涉及改进的信道估计。 另一方面涉及发射子信道增益的适应。

公开(公告)号：US08099123B2

公开(公告)日：2012-01-17

申请号：US11192787

申请日：2005-07-29

申请人： Stefano Tomasin ,  Henry David Pfister ,  Jilei Hou ,  John Edward Smee

发明人： Stefano Tomasin ,  Henry David Pfister ,  Jilei Hou ,  John Edward Smee

IPC分类号： H04B7/00 ,  H04B1/00 ,  H04B15/00 ,  H04B1/04 ,  H04B1/10 ,  H04W36/00 ,  G08B23/00 ,  H04B7/185 ,  H04W4/00 ,  H04B7/216 ,  H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04L1/00 ,  H04L25/08

CPC分类号： H04W52/146 ,  H04B1/7103 ,  H04B2201/70701

摘要： A method and system for interference cancellation (IC). One aspect relates to traffic interference cancellation. Another aspect relates to joint IC for pilot, overhead and data. Another aspect relates to improved channel estimation. Another aspect relates to adaptation of transmit subchannel gains.

摘要翻译： 一种用于干扰消除（IC）的方法和系统。 一方面涉及交通干扰消除。 另一方面涉及用于飞行员，间接费用和数据的联合IC。 另一方面涉及改进的信道估计。 另一方面涉及发射子信道增益的适应。

公开(公告)号：US09071344B2

公开(公告)日：2015-06-30

申请号：US11334977

申请日：2006-01-18

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： H04W36/00 ,  H04B1/7107 ,  H04W52/12

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。

公开(公告)号：US08442441B2

公开(公告)日：2013-05-14

申请号：US11192769

申请日：2005-07-29

申请人： Henry David Pfister ,  Jilei Hou ,  John Edward Smee ,  Stefano Tomasin

发明人： Henry David Pfister ,  Jilei Hou ,  John Edward Smee ,  Stefano Tomasin

IPC分类号： H04B1/00 ,  H04B15/00

CPC分类号： H04B1/7103

摘要： A method and system for interference cancellation (IC). One aspect relates to traffic interference cancellation. Another aspect relates to joint IC for pilot, overhead and data. Another aspect relates to improved channel estimation. Another aspect relates to adaptation of transmit subchannel gains.

摘要翻译： 一种用于干扰消除（IC）的方法和系统。 一方面涉及交通干扰消除。 另一方面涉及用于飞行员，间接费用和数据的联合IC。 另一方面涉及改进的信道估计。 另一方面涉及发射子信道增益的适应。

公开(公告)号：US08422955B2

公开(公告)日：2013-04-16

申请号：US11192503

申请日：2005-07-29

申请人： John Edward Smee ,  Henry David Pfister ,  Jilei Hou ,  Stefano Tomasin

发明人： John Edward Smee ,  Henry David Pfister ,  Jilei Hou ,  Stefano Tomasin

IPC分类号： H04B1/00 ,  H04B15/00

CPC分类号： H04B1/7107 ,  H04B1/7105 ,  H04B1/7115 ,  H04B2001/71077 ,  H04B2201/70701 ,  H04L25/0212

摘要： A method and system for interference cancellation (IC). One aspect relates to traffic interference cancellation. Another aspect relates to joint IC for pilot, overhead and data. Another aspect relates to improved channel estimation. Another aspect relates to adaptation of transmit subchannel gains.

摘要翻译： 一种用于干扰消除（IC）的方法和系统。 一方面涉及交通干扰消除。 另一方面涉及用于飞行员，间接费用和数据的联合IC。 另一方面涉及改进的信道估计。 另一方面涉及发射子信道增益的适应。

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。

公开(公告)号：US08385388B2

公开(公告)日：2013-02-26

申请号：US11501972

申请日：2006-08-09

申请人： Joseph B. Soriaga ,  Naga Bhushan ,  Jilei Hou ,  Jinghu Chen ,  John Edward Smee

发明人： Joseph B. Soriaga ,  Naga Bhushan ,  Jilei Hou ,  Jinghu Chen ,  John Edward Smee

IPC分类号： H04B3/36

CPC分类号： H04L1/1607 ,  H04B1/71072 ,  H04L1/0025 ,  H04L1/0045 ,  H04L1/1812 ,  H04L1/1858 ,  H04L1/20 ,  H04L1/208 ,  H04L25/0204 ,  H04L25/03254

摘要： A method and system for reconstructing a user's received signal based on knowledge of the user's transmitted signal to yield efficient interference cancellation when there is spatial and/or temporal correlation in the received signal. The invention may be applied to the cancellation of pilot, decoded data and overhead signals. The method may involve a linear combination of the received samples across time, e.g., at a per-chip or sub-chip resolution, and across antennas, and build upon previous work in that the tap weights need not be the sole functions of the de-spreader outputs in the RAKE receiver.

摘要翻译： 一种用于基于用户发送信号的知识重建用户接收信号的方法和系统，以便在接收信号中存在空间和/或时间相关性时产生有效的干扰消除。 本发明可以应用于导频，解码数据和开销信号的消除。 该方法可以涉及所接收的样本在时间上的线性组合，例如以每芯片或子芯片分辨率和跨天线的线性组合，并且基于先前的工作，因为抽头权重不必是de - RAKE接收机中的扩展器输出。