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1. 发明授权

US08391338B2 Methods for estimation and interference cancellation for signal processing 有权
标题翻译：用于信号处理的估计和干扰消除方法
公开(公告)号：US08391338B2
公开(公告)日：2013-03-05
申请号：US12916439
申请日：2010-10-29
申请人： Gagandeep Singh Lamba , Tommy Guess , Michael McCloud , Anand P. Narayan , Prashant Jain
发明人： Gagandeep Singh Lamba , Tommy Guess , Michael McCloud , Anand P. Narayan , Prashant Jain
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。

2. 发明申请

US20110064066A1 Methods for Estimation and Interference Cancellation for signal processing 有权
标题翻译：信号处理的估计和干扰消除方法
公开(公告)号：US20110064066A1
公开(公告)日：2011-03-17
申请号：US12916439
申请日：2010-10-29
申请人： Gagandeep Singh Lamba , Tommy Guess , Michael McCloud , Anand P. Narayan , Prashant Jain
发明人： Gagandeep Singh Lamba , Tommy Guess , Michael McCloud , Anand P. Narayan , Prashant Jain
IPC分类号： H04W88/08
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。

3. 发明授权

US08121177B2 Method and apparatus for interference suppression with efficient matrix inversion in a DS-CDMA system 有权
标题翻译：用于DS-CDMA系统中有效矩阵求逆的干扰抑制方法和装置
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。

4. 发明申请

US20100323624A1 METHOD AND APPARATUS FOR SELECTIVELY APPLYING INTERFERENCE CANCELLATION IN SPREAD SPECTRUM SYSTEMS 有权
标题翻译：选择性地在传播频谱系统中应用干扰消除的方法和装置
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。

5. 发明授权

US07430253B2 Method and apparatus for interference suppression with efficient matrix inversion in a DS-CDMA system 有权
标题翻译：用于DS-CDMA系统中有效矩阵求逆的干扰抑制方法和装置
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。

6. 发明申请

US20150010043A1 METHODS FOR MANAGING ALIGNMENT AND LATENCY IN INTERFERENCE SUPPRESSION 有权
标题翻译：用于在干扰抑制中管理对齐和延迟的方法
公开(公告)号：US20150010043A1
公开(公告)日：2015-01-08
申请号：US14490961
申请日：2014-09-19
申请人： Anand P. Narayan , Greg Graham , David R. Meyer , Prashant Jain
发明人： Anand P. Narayan , Greg Graham , David R. Meyer , Prashant Jain
IPC分类号： H04B1/7097 , H04B1/7093
CPC分类号： H04B1/7097 , G01S5/0215 , G01S5/10 , G01S19/22 , H04B1/7093 , H04B1/7105 , H04B1/7117 , H04B2001/70935 , H04B2201/70701 , H04B2201/70715
摘要： An interference cancelling receiver combines data from multiple paths after aligning to transmitter timing, and uses either an equalizer or a Rake receiver to compute symbol estimates. Interference estimates are generated from the symbol estimates, and multiple interference estimates are combined after re-aligning the interference estimates to receiver timing. At least two segments of symbol estimates are computed for each segment of interference cancelled data.Various techniques may be employed for controlling the latency and sequencing of these operations, and the subsystems within the canceller may use different processing clock speeds.
摘要翻译：干扰消除接收机在对准发射机定时之后组合来自多个路径的数据，并且使用均衡器或Rake接收机来计算符号估计。从符号估计产生干扰估计，并且在将干扰估计重新对准接收机定时之后组合多个干扰估计。对干扰消除数据的每个段计算符号估计的至少两个段。可以采用各种技术来控制这些操作的等待时间和顺序，并且消除器内的子系统可以使用不同的处理时钟速度。

7. 发明授权

US08842786B2 Methods for managing alignment and latency in interference suppression 有权
标题翻译：用于管理干扰抑制中的对准和延迟的方法
公开(公告)号：US08842786B2
公开(公告)日：2014-09-23
申请号：US13314787
申请日：2011-12-08
申请人： Anand P. Narayan , Greg Graham , David R. Meyer , Prashant Jain
发明人： Anand P. Narayan , Greg Graham , David R. Meyer , Prashant Jain
IPC分类号： H03D1/04 , H04B1/7117 , H04B1/7105 , G01S19/22 , G01S5/02 , G01S5/10
CPC分类号： H04B1/7097 , G01S5/0215 , G01S5/10 , G01S19/22 , H04B1/7093 , H04B1/7105 , H04B1/7117 , H04B2001/70935 , H04B2201/70701 , H04B2201/70715
摘要： An interference cancelling receiver combines data from multiple paths after aligning to transmitter timing, and uses either an equalizer or a Rake receiver to compute symbol estimates. Interference estimates are generated from the symbol estimates, and multiple interference estimates are combined after re-aligning the interference estimates to receiver timing. At least two segments of symbol estimates are computed for each segment of interference cancelled data.Various techniques may be employed for controlling the latency and sequencing of these operations, and the subsystems within the canceller may use different processing clock speeds.
摘要翻译：干扰消除接收机在对准发射机定时之后组合来自多个路径的数据，并且使用均衡器或Rake接收机来计算符号估计。从符号估计产生干扰估计，并且在将干扰估计重新对准接收机定时之后组合多个干扰估计。对干扰消除数据的每个段计算符号估计的至少两个段。可以采用各种技术来控制这些操作的等待时间和顺序，并且消除器内的子系统可以使用不同的处理时钟速度。

8. 发明授权

US07787518B2 Method and apparatus for selectively applying interference cancellation in spread spectrum systems 有权
标题翻译：用于在扩频系统中选择性地应用干扰消除的方法和装置
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。

9. 发明申请

US20120195360A1 Methods for managing alignment and latency in interference suppression 有权
标题翻译：用于管理干扰抑制中的对准和延迟的方法
公开(公告)号：US20120195360A1
公开(公告)日：2012-08-02
申请号：US13314787
申请日：2011-12-08
申请人： Anand P. Narayan , Greg Graham , David R. Meyer , Prashant Jain
发明人： Anand P. Narayan , Greg Graham , David R. Meyer , Prashant Jain
IPC分类号： H04B15/00 , H04L27/01
CPC分类号： H04B1/7097 , G01S5/0215 , G01S5/10 , G01S19/22 , H04B1/7093 , H04B1/7105 , H04B1/7117 , H04B2001/70935 , H04B2201/70701 , H04B2201/70715
摘要： An interference cancelling receiver combines data from multiple paths after aligning to transmitter timing, and uses either an equalizer or a Rake receiver to compute symbol estimates. Interference estimates are generated from the symbol estimates, and multiple interference estimates are combined after re-aligning the interference estimates to receiver timing. At least two segments of symbol estimates are computed for each segment of interference cancelled data.Various techniques may be employed for controlling the latency and sequencing of these operations, and the subsystems within the canceller may use different processing clock speeds.
摘要翻译：干扰消除接收机在对准发射机定时之后组合来自多个路径的数据，并且使用均衡器或Rake接收机来计算符号估计。从符号估计产生干扰估计，并且在将干扰估计重新对准接收机定时之后组合多个干扰估计。对干扰消除数据的每个段计算符号估计的至少两个段。可以采用各种技术来控制这些操作的等待时间和顺序，并且消除器内的子系统可以使用不同的处理时钟速度。

10. 发明授权

US08085889B1 Methods for managing alignment and latency in interference cancellation 有权
标题翻译：在干扰消除中管理对齐和延迟的方法
公开(公告)号：US08085889B1
公开(公告)日：2011-12-27
申请号：US11858074
申请日：2007-09-19
申请人： Anand P Narayan , Greg Graham , David R Meyer , Prashant Jain
发明人： Anand P Narayan , Greg Graham , David R Meyer , Prashant Jain
IPC分类号： H03D1/04
CPC分类号： H04B1/7097 , G01S5/0215 , G01S5/10 , G01S19/22 , H04B1/7093 , H04B1/7105 , H04B1/7117 , H04B2001/70935 , H04B2201/70701 , H04B2201/70715
摘要： An interference cancelling receiver combines data from multiple paths after aligning to transmitter timing, and uses either an equalizer or a Rake receiver to compute symbol estimates. Interference estimates are generated from the symbol estimates, and multiple interference estimates are combined after re-aligning the interference estimates to receiver timing. At least two segments of symbol estimates are computed for each segment of interference cancelled data.Various techniques may be employed for controlling the latency and sequencing of these operations, and the subsystems within the canceller may use different processing clock speeds.
摘要翻译：干扰消除接收机在对准发射机定时之后组合来自多个路径的数据，并且使用均衡器或Rake接收机来计算符号估计。从符号估计产生干扰估计，并且在将干扰估计重新对准接收机定时之后组合多个干扰估计。对干扰消除数据的每个段计算符号估计的至少两个段。可以采用各种技术来控制这些操作的等待时间和顺序，并且消除器内的子系统可以使用不同的处理时钟速度。

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