公开(公告)号：US20110069742A1

公开(公告)日：2011-03-24

申请号：US12948749

申请日：2010-11-17

申请人： Anand P. Narayan ,  Eric S. Olson ,  Prashant Jain ,  John K. Thomas

发明人： Anand P. Narayan ,  Eric S. Olson ,  Prashant Jain ,  John K. Thomas

IPC分类号： H04B1/10 ,  H04L1/02 ,  H04B1/7115

CPC分类号： H04B1/71072 ,  H04B1/7097 ,  H04B1/7107 ,  H04B1/71075 ,  H04B1/7115 ,  H04B1/7117 ,  H04B15/00 ,  H04B2001/71077 ,  H04B2201/709718 ,  H04J13/00 ,  H04J13/0048 ,  H04L43/08 ,  H04W24/08

摘要： A receiver in a CDMA system comprises a front end processor that generates a combined signal per source. A symbol estimator processes the combined signal to produce symbol estimates. An S-Matrix Generation module refines these symbol estimates based on the sub channel symbol estimates. An interference canceller is configured for cancelling interference from at least one of the plurality of received signals for producing at least one interference-cancelled signal.

摘要翻译： CDMA系统中的接收机包括每个源产生组合信号的前端处理器。 符号估计器处理组合信号以产生符号估计。 S矩阵生成模块基于子信道符号估计来优化这些符号估计。 一个干扰消除器被配置为消除来自多个接收信号中的至少一个的干扰，用于产生至少一个干扰消除信号。

公开(公告)号：US08121177B2

公开(公告)日：2012-02-21

申请号：US12948749

申请日：2010-11-17

申请人： Anand P. Narayan ,  Eric S. Olson ,  Prashant Jain ,  John K. Thomas

发明人： Anand P. Narayan ,  Eric S. Olson ,  Prashant Jain ,  John K. Thomas

IPC分类号： H04B1/00

CPC分类号： H04B1/71072 ,  H04B1/7097 ,  H04B1/7107 ,  H04B1/71075 ,  H04B1/7115 ,  H04B1/7117 ,  H04B15/00 ,  H04B2001/71077 ,  H04B2201/709718 ,  H04J13/00 ,  H04J13/0048 ,  H04L43/08 ,  H04W24/08

摘要： A receiver in a CDMA system comprises a front end processor that generates a combined signal per source. A symbol estimator processes the combined signal to produce symbol estimates. An S-Matrix Generation module refines these symbol estimates based on the sub channel symbol estimates. An interference canceller is configured for cancelling interference from at least one of the plurality of received signals for producing at least one interference-cancelled signal.

摘要翻译： CDMA系统中的接收机包括每个源产生组合信号的前端处理器。 符号估计器处理组合信号以产生符号估计。 S矩阵生成模块基于子信道符号估计来优化这些符号估计。 一个干扰消除器被配置为消除来自多个接收信号中的至少一个的干扰，用于产生至少一个干扰消除信号。

公开(公告)号：US07430253B2

公开(公告)日：2008-09-30

申请号：US10686828

申请日：2003-10-15

申请人： Eric S. Olson ,  Anand P. Narayan ,  Prashant Jain ,  John K. Thomas

发明人： Eric S. Olson ,  Anand P. Narayan ,  Prashant Jain ,  John K. Thomas

IPC分类号： H04L27/00

CPC分类号： H04B1/71052 ,  H04B1/7107 ,  H04B1/7117 ,  H04B1/712

摘要： The present invention is directed to signal cancellation in spread spectrum communication systems. In particular, the present invention provides method and apparatus for selectively canceling interfering signals, even where symbols to be canceled do not align with symbols associated with a desired signal path. Furthermore, the interference cancellation provided by embodiments of the present invention is capable of functioning to remove interference associated with channels utilizing a symbol length that is different than the symbol length of a desired signal path. In accordance with a further embodiment of the present invention, method and apparatus for efficiently calculating projections to enable signal cancellation are provided.

摘要翻译： 本发明涉及扩频通信系统中的信号消除。 特别地，本发明提供了用于选择性地消除干扰信号的方法和装置，即使要被取消的符号不与符合期望信号路径的符号对齐。 此外，由本发明的实施例提供的干扰消除能够利用不同于期望信号路径的符号长度的符号长度去除与信道相关的干扰。 根据本发明的另一实施例，提供了用于有效地计算投影以启用信号消除的方法和装置。

公开(公告)号：US07068706B2

公开(公告)日：2006-06-27

申请号：US10686359

申请日：2003-10-15

申请人： Anand P. Narayan ,  Prashant Jain ,  Eric S. Olson

发明人： Anand P. Narayan ,  Prashant Jain ,  Eric S. Olson

IPC分类号： H04B1/69

CPC分类号： H04J13/0048 ,  H04L2027/0046

摘要： Systems and methods for adjusting phase of a signal are provided. In one embodiment, the system includes a phase compensator configured for adjusting phase of the signal based on filtered and unfiltered representations of a first component of the signal and based on filtered and unfiltered representations of a second component of the signal. For example, the phase compensator may provide phase adjusted I and Q components of a complex signal through a plurality of multiplications of filtered and unfiltered I and Q components. The system also includes a detector that is communicatively coupled to the phase compensator. The detector is configured for combining the first and the second components with a code sequence to determine a complex amplitude of a channel.

摘要翻译： 提供了一种调整信号相位的系统和方法。 在一个实施例中，系统包括相位补偿器，该相位补偿器被配置为基于信号的第一分量的滤波和未滤波表示并且基于信号的第二分量的滤波和未滤波表示来调整信号的相位。 例如，相位补偿器可以通过滤波和未滤波的I和Q分量的多次乘法来提供复信号的相位调整的I和Q分量。 该系统还包括通信地耦合到相位补偿器的检测器。 检测器被配置用于组合第一和第二分量与码序列以确定信道的复振幅。

公开(公告)号：US07787518B2

公开(公告)日：2010-08-31

申请号：US10669954

申请日：2003-09-23

申请人： Anand P. Narayan ,  Eric S. Olson ,  Prashant Jain

发明人： Anand P. Narayan ,  Eric S. Olson ,  Prashant Jain

IPC分类号： H04B1/69

CPC分类号： H04B1/7117 ,  H04B1/7107 ,  H04B1/71072 ,  H04B1/7115 ,  H04B2001/71077

摘要： The present invention is directed to the selective provision of interference canceled signal streams to demodulating fingers in a communication receiver. According to the present invention, potential interferer signal paths are identified. Signal streams having one or more potential interferer signals removed or canceled are created, and a correlation is performed to determine whether the strength of a desired signal path increased as a result. If the correlation indicates that the strength of a desired signal path was increased by the signal cancellation, the interference canceled signal stream is provided to the demodulation finger assigned to track the desired signal path. If the correlation determines that the strength of the desired signal path did not increase as a result of performing interference cancellation, the raw or a different interference canceled signal stream is provided to the demodulation finger.

摘要翻译： 本发明涉及在通信接收机中选择性地提供干扰消除信号流来解调手指。 根据本发明，识别潜在的干扰信号路径。 产生具有去除或取消的一个或多个潜在干扰信号的信号流，并且执行相关性以确定所需信号路径的强度是否随之增加。 如果相关性指示所需信号路径的强度通过信号消除而增加，则将干扰消除信号流提供给被分配用于跟踪期望信号路径的解调手指。 如果相关性确定期望信号路径的强度作为执行干扰消除的结果没有增加，则原始或不同的干扰消除信号流被提供给解调手指。

公开(公告)号：US20100323624A1

公开(公告)日：2010-12-23

申请号：US12871748

申请日：2010-08-30

申请人： Anand P. Narayan ,  Eric S. Olson ,  Prashant Jain

发明人： Anand P. Narayan ,  Eric S. Olson ,  Prashant Jain

IPC分类号： H04B15/00

CPC分类号： H04B1/7117 ,  H04B1/7107 ,  H04B1/71072 ,  H04B1/7115 ,  H04B2001/71077

摘要： The present invention is directed to the selective provision of interference canceled signal streams to demodulating fingers in a communication receiver. According to the present invention, potential interferer signal paths are identified. Signal streams having one or more potential interferer signals removed or canceled are created, and a correlation is performed to determine whether the strength of a desired signal path increased as a result. If the correlation indicates that the strength of a desired signal path was increased by the signal cancellation, the interference canceled signal stream is provided to the demodulation finger assigned to track the desired signal path. If the correlation determines that the strength of the desired signal path did not increase as a result of performing interference cancellation, the raw or a different interference canceled signal stream is provided to the demodulation finger.

摘要翻译： 本发明涉及在通信接收机中选择性地提供干扰消除信号流来解调手指。 根据本发明，识别潜在的干扰信号路径。 产生具有去除或取消的一个或多个潜在干扰信号的信号流，并且执行相关性以确定所需信号路径的强度是否随之增加。 如果相关性指示所需信号路径的强度通过信号消除而增加，则将干扰消除信号流提供给被分配用于跟踪期望信号路径的解调手指。 如果相关性确定期望信号路径的强度作为执行干扰消除的结果没有增加，则原始或不同的干扰消除信号流被提供给解调手指。

公开(公告)号：US20110096767A1

公开(公告)日：2011-04-28

申请号：US12966931

申请日：2010-12-13

申请人： Anand P. Narayan ,  John K. Thomas ,  Eric S. Olson

发明人： Anand P. Narayan ,  John K. Thomas ,  Eric S. Olson

IPC分类号： H04B7/216 ,  H04B1/10

CPC分类号： H04B1/126 ,  H04B1/1027 ,  H04B1/1081 ,  H04B1/7105 ,  H04B1/7107 ,  H04B1/7117 ,  H04B1/712 ,  H04B7/0678 ,  H04B7/0891 ,  H04B2001/1045 ,  H04B2201/70719 ,  H04B2201/70979 ,  H04J13/0022 ,  H04J13/20

摘要： A multi-mode receiver includes a channel decomposition module (e.g., a Rake receiver) for separating a received signal into multipath components, an interference selector for selecting interfering paths and subchannels, a synthesizer for synthesizing interference signals from selected sub channel symbol estimates, and an interference canceller for cancelling selected interference in the received signal. At least one of the channel decomposition module, the synthesizer, and the interference canceller are configurable for processing multi-mode signals.

摘要翻译： 多模式接收机包括用于将接收信号分离为多路径分量的信道分解模块（例如，Rake接收机），用于选择干扰路径和子信道的干扰选择器，用于合成来自所选子信道符号估计的干扰信号的合成器，以及 干扰消除器，用于消除接收到的信号中的选定干扰。 信道分解模块，合成器和干扰消除器中的至少一个可配置用于处理多模信号。

公开(公告)号：US09544044B2

公开(公告)日：2017-01-10

申请号：US12966931

申请日：2010-12-13

申请人： Anand P. Narayan ,  Eric S. Olson ,  John K. Thomas

发明人： Anand P. Narayan ,  Eric S. Olson ,  John K. Thomas

IPC分类号： H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08 ,  H04B7/08 ,  H04B1/7105 ,  H04B1/7107 ,  H04B1/7117 ,  H04B7/06 ,  H04J13/20 ,  H04B1/712

CPC分类号： H04B1/126 ,  H04B1/1027 ,  H04B1/1081 ,  H04B1/7105 ,  H04B1/7107 ,  H04B1/7117 ,  H04B1/712 ,  H04B7/0678 ,  H04B7/0891 ,  H04B2001/1045 ,  H04B2201/70719 ,  H04B2201/70979 ,  H04J13/0022 ,  H04J13/20

摘要： The present invention provides systems and methods for parallel interference suppression. In one embodiment of the invention, a processing engine is used to substantially cancel a plurality of interfering signals within a received signal. The processing engine includes a plurality of matrix generators that are used to generate matrices, each matrix comprising elements of a unique interfering signal selected for cancellation. The processing engine also includes one or more processors that use the matrices to generate cancellation operators. A plurality of applicators applies the cancellation operators to parallel but not necessarily unique input signals to substantially cancel the interfering signals from the input signals. These input signals may include received signals, interference cancelled signals and/or PN codes.

摘要翻译： 本发明提供了用于并行干扰抑制的系统和方法。 在本发明的一个实施例中，处理引擎用于基本上消除接收信号内的多个干扰信号。 处理引擎包括用于生成矩阵的多个矩阵生成器，每个矩阵包括被选择用于取消的唯一干扰信号的元素。 处理引擎还包括使用矩阵来生成取消操作符的一个或多个处理器。 多个施加器将取消操作者应用于并行但不一定是唯一的输入信号，以基本上抵消来自输入信号的干扰信号。 这些输入信号可以包括接收信号，干扰消除信号和/或PN码。

公开(公告)号：US07577186B2

公开(公告)日：2009-08-18

申请号：US10935015

申请日：2004-09-07

申请人： John K. Thomas ,  Anand P. Narayan ,  Eric S. Olson

发明人： John K. Thomas ,  Anand P. Narayan ,  Eric S. Olson

IPC分类号： H04B1/00

CPC分类号： H04B1/7105 ,  H04B1/7107 ,  H04B1/7117

摘要： The present invention provides systems and methods for interference matrix construction. Such an interference matrix may be used to generate a cancellation operator that when applied to a signal may substantially remove selected interfering signals. In one embodiment of the invention, a system comprises an interference selector configured for selecting one or more interferers for interference cancellation. The system also comprises a matrix generator communicatively coupled to the interference selector and configured for receiving selected interferers from the interference selector. The matrix generator is also configured for generating a matrix having one or more vectors, wherein each vector comprises elements of at least one of the selected interferers. Such an interference matrix and the subsequent generation of the cancellation operator may advantageously provide interference cancellation to systems employing CDMA (e.g., such as cdmaOne and cdma2000), WCDMA, Broadband CDMA, UMTS and GPS signals.

摘要翻译： 本发明提供了干涉矩阵构造的系统和方法。 这样的干涉矩阵可以用于产生消除操作者，当应用于信号时，可以基本上去除所选择的干扰信号。 在本发明的一个实施例中，系统包括被配置用于选择一个或多个干扰源用于干扰消除的干扰选择器。 该系统还包括通信地耦合到干扰选择器并被配置为从干扰选择器接收所选择的干扰源的矩阵发生器。 矩阵生成器还被配置用于生成具有一个或多个向量的矩阵，其中每个向量包括所选择的干扰源中的至少一个的元素。 这样的干扰矩阵和随后的取消算子的产生可以有利地对采用CDMA（例如cdmaOne和cdma2000），WCDMA，宽带CDMA，UMTS和GPS信号的系统提供干扰消除。

公开(公告)号：US07359465B2

公开(公告)日：2008-04-15

申请号：US11103138

申请日：2005-04-11

申请人： Eric S. Olson ,  Anand P. Narayan ,  John K. Thomas

发明人： Eric S. Olson ,  Anand P. Narayan ,  John K. Thomas

IPC分类号： H03D1/04

CPC分类号： H04B1/7105 ,  H04B1/7075 ,  H04B1/709 ,  H04B1/7103 ,  H04B1/7117 ,  H04B2001/70706 ,  H04B2201/70701 ,  H04B2201/70715

摘要： A novel serial receiver for a wireless communication system is provided. The communication system comprises: a receiver for receiving a signal y having data parameters; a control processor; the control processor for receiving the signal y and the data parameters; at least two fingers, the control processor for determining which of the data parameters are sent to respective fingers, wherein the at least two fingers have at least a search finger and a tracking finger; and wherein the tracking finger comprises a correlator and a Coded Signal Processing Engine (CSPE), the CSPE for interference cancellation in the reception of the signal y. In addition, numerous other embodiments of the serial receiver are provided along with methods for using the serial receiver.

摘要翻译： 提供了一种用于无线通信系统的新型串行接收机。 通信系统包括：接收器，用于接收具有数据参数的信号y; 一个控制处理器; 用于接收信号y和数据参数的控制处理器; 至少两个手指，所述控制处理器用于确定哪个数据参数被发送到各个手指，其中所述至少两个手指至少具有搜索指和跟踪指; 并且其中所述跟踪指包括相关器和编码信号处理引擎（CSPE），所述CSPE用于在接收信号y时进行干扰消除。 此外，提供串行接收机的许多其它实施例以及使用串行接收机的方法。