公开(公告)号：US20100067620A1

公开(公告)日：2010-03-18

申请号：US12565284

申请日：2009-09-23

Applicant: Alexander Reznik ,  Rui Yang ,  Bin Li ,  Ariela Zeira

Inventor： Alexander Reznik ,  Rui Yang ,  Bin Li ,  Ariela Zeira

IPC: H04L27/06

CPC classification number: H04L25/0242 ,  H04B1/71052 ,  H04L25/0212 ,  H04L25/03057 ,  H04L25/03292 ,  H04L2025/03426 ,  H04L2025/03509 ,  H04L2025/03605

Abstract: A method and apparatus for use in data estimation in wireless communication are provided. A wireless communications signal is received and transformed to produce a received vector. The received vector is processed using a sliding window based approach that includes processing each of a plurality of windows. For each window, an approximate circulant channel response matrix is produced for use in estimating a data vector corresponding to the window.

Abstract translation: 提供了一种用于无线通信中的数据估计的方法和装置。 无线通信信号被接收和变换以产生接收的矢量。 使用基于滑动窗口的方法处理接收的向量，其包括处理多个窗口中的每一个。 对于每个窗口，产生近似循环通道响应矩阵用于估计对应于该窗口的数据矢量。

公开(公告)号：US20090190645A1

公开(公告)日：2009-07-30

申请号：US12419333

申请日：2009-04-07

Applicant: Bin Li ,  Robert A. DiFazio ,  Jung-Lin Pan ,  Alexander Reznik ,  John David Kaewell, JR. ,  Peter Edward Becker

Inventor： Bin Li ,  Robert A. DiFazio ,  Jung-Lin Pan ,  Alexander Reznik ,  John David Kaewell, JR. ,  Peter Edward Becker

IPC: H04L25/49 ,  H03H7/30

CPC classification number: H04L25/03159 ,  H04B17/336

Abstract: A receiver or an integrated circuit (IC) incorporated therein includes a fast Fourier transform (FFT)-based (or hybrid FFT-based) sliding window block level equalizer (BLE) for generating equalized samples. The BLE includes a noise power estimator, first and second channel estimators, an FFT-based chip level equalizer (CLEQ) and a channel monitor unit. The noise power estimator generates a noise power estimate based on two diverse sample data streams. The channel estimators generate respective channel estimates based on the sample data streams. The channel monitor unit generates a first channel monitor signal including truncated channel estimate vectors based on the channel estimates, and a second channel monitor signal which indicates an approximate rate of change of the truncated channel estimate vectors. The FFT-based CLEQ generates the equalized samples based on the noise power estimate, one-block samples of the first and second sample data streams, the channel estimates and the monitor signals.

Abstract translation: 结合在其中的接收器或集成电路（IC）包括用于产生均衡样本的基于快速傅立叶变换（FFT）（或基于混合FFT）的滑动窗口块级均衡器（BLE）。 BLE包括噪声功率估计器，第一和第二信道估计器，基于FFT的码片级均衡器（CLEQ）和信道监视器单元。 噪声功率估计器基于两个不同的采样数据流产生噪声功率估计。 信道估计器基于样本数据流生成相应的信道估计。 信道监视单元基于信道估计产生包括截断的信道估计向量的第一信道监视信号，以及指示截断的信道估计向量的近似变化率的第二信道监视信号。 基于FFT的CLEQ基于噪声功率估计，第一和第二采样数据流的一个块采样，信道估计和监视信号来生成均衡的采样。

公开(公告)号：US20060109892A1

公开(公告)日：2006-05-25

申请号：US11327738

申请日：2006-01-06

Applicant: Bin Li ,  Rui Yang ,  Alexander Reznik ,  Ariela Zeira

Inventor： Bin Li ,  Rui Yang ,  Alexander Reznik ,  Ariela Zeira

IPC: H04B1/707 ,  H04L1/02

CPC classification number: H04B1/7113 ,  H04B1/7115 ,  H04L25/03038 ,  H04L25/03987 ,  H04L2025/03592

Abstract: A receiver which suppresses inter-cluster multipath interference by processing an impulse channel response consisting of two multipath clusters, each cluster having groups of signals with multiple delays. In one embodiment, the receiver includes a single antenna and parallel-connected delay units used to align the groups of signals before being input into respective sliding window equalizers. The outputs of the equalizers are combined at chip level via a combiner which provides a single output. In another embodiment, a cluster multipath interference suppression (CMIS) circuit is incorporated into the receiver. The CMIS circuit includes a hard decision unit and a plurality of signal regeneration units to generate replicas of the multipath clusters. The replicas are subtracted from the respective outputs of the delay units and the results are input to the respective sliding window equalizers. In another embodiment, multiple antennas are used to receive and process the clusters.

公开(公告)号：US20080298523A1

公开(公告)日：2008-12-04

申请号：US12191702

申请日：2008-08-14

Applicant: Alexander Reznik ,  Rui Yang ,  Bin Li ,  Ariela Zeira

Inventor： Alexander Reznik ,  Rui Yang ,  Bin Li ,  Ariela Zeira

IPC: H03D1/04

CPC classification number: H04L25/0242 ,  H04B1/71052 ,  H04L25/0212 ,  H04L25/03057 ,  H04L25/03292 ,  H04L2025/03426 ,  H04L2025/03509 ,  H04L2025/03605

Abstract: Data estimation is performed in a wireless communication system using both oversampling and multiple reception antennas. A receive vector is produced for each antenna at a sampling interval which is a multiple of the chip rate of the received signal. A channel response matrix is produced for each antenna at a preferred multiple of the sampling rate. Each receive vector is processed using a sliding window based approach, where a plurality of successive windows are processed. For each window, a combined circulant channel response matrix is produced using the channel response matrices. Using the combined circulant channel response matrix and a combined received vector comprising each received vector in a discrete Fourier transform based approach to estimate a data vector corresponding to that window; and combining the data vector estimated in each window to form a combined data vector.

Abstract translation: 在使用过采样和多个接收天线的无线通信系统中执行数据估计。 以每个天线的采样间隔产生接收矢量，该采样间隔是接收信号的码片速率的倍数。 以采样率的优选倍数为每个天线产生信道响应矩阵。 使用基于滑动窗口的方法处理每个接收向量，其中处理多个连续的窗口。 对于每个窗口，使用信道响应矩阵来产生组合循环信道响应矩阵。 使用组合的循环信道响应矩阵和包括基于离散傅立叶变换的方法中的每个接收向量的组合接收向量来估计对应于该窗口的数据矢量; 并组合在每个窗口中估计的数据矢量以形成组合的数据向量。

公开(公告)号：US07042967B2

公开(公告)日：2006-05-09

申请号：US10875900

申请日：2004-06-24

Applicant: Alexander Reznik ,  Rui Yang ,  Bin Li ,  Ariela Zeira

Inventor： Alexander Reznik ,  Rui Yang ,  Bin Li ,  Ariela Zeira

IPC: H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10

CPC classification number: H04L25/0242 ,  H04B1/71052 ,  H04L25/0212 ,  H04L25/03057 ,  H04L25/03292 ,  H04L2025/03426 ,  H04L2025/03509 ,  H04L2025/03605

Abstract: The present invention has many aspects. One aspect of the invention is to perform equalization using a sliding window approach. A second aspect reuses information derived for each window for use by a subsequent window. A third aspect utilizes a discrete Fourier transform based approach for the equalization. A fourth aspect relates to handling oversampling of the received signals and channel responses. A fifth aspect relates to handling multiple reception antennas. A sixth embodiment relates to handling both oversampling and multiple reception antennas.

Abstract translation: 本发明具有许多方面。 本发明的一个方面是使用滑动窗口方法进行均衡。 第二个方面重用为每个窗口导出的信息，供后续窗口使用。 第三方面利用基于离散傅立叶变换的均衡方法。 第四方面涉及处理接收信号和信道响应的过采样。 第五方面涉及处理多个接收天线。 第六实施例涉及处理过采样和多个接收天线。

公开(公告)号：US07010070B2

公开(公告)日：2006-03-07

申请号：US10889939

申请日：2004-07-13

Applicant: Bin Li ,  Rui Yang ,  Alexander Reznik ,  Ariela Zeira

Inventor： Bin Li ,  Rui Yang ,  Alexander Reznik ,  Ariela Zeira

IPC: H04B1/10 ,  H04B7/216

CPC classification number: H04B1/7113 ,  H04B1/7115 ,  H04L25/03038 ,  H04L25/03987 ,  H04L2025/03592

Abstract: A receiver which suppresses inter-cluster multipath interference by processing an impulse channel response consisting of two multipath clusters, each cluster having groups of signals with multiple delays. In one embodiment, the receiver includes a single antenna and parallel-connected delay units used to align the groups of signals before being input into respective sliding window equalizers. The outputs of the equalizers are combined at chip level via a combiner which provides a single output. In another embodiment, a Cluster Multipath Interference Suppression (CMIS) circuit is incorporated into the receiver. The CMIS circuit includes a hard decision unit and a plurality of signal regeneration units to generate replicas of the multipath clusters. The replicas are subtracted from the respective outputs of the delay units and the results are input to the respective sliding window equalizers. In another embodiment, multiple antennas are used to receive and process the clusters.

Abstract translation: 一种通过处理由两个多径簇组成的脉冲信道响应来抑制簇间多径干扰的接收机，每个簇具有多个延迟的信号组。 在一个实施例中，接收机包括单个天线和并联连接的延迟单元，用于在输入到相应的滑动窗口均衡器之前将信号组对准。 均衡器的输出通过提供单个输出的组合器在芯片级组合。 在另一个实施例中，集群多路径干扰抑制（CMIS）电路并入接收机。 CMIS电路包括硬决策单元和多个信号再生单元以生成多路径簇的副本。 从延迟单元的相应输出中减去副本，并将结果输入到各个滑动窗均衡器。 在另一个实施例中，使用多个天线来接收和处理簇。

公开(公告)号：US20050063500A1

公开(公告)日：2005-03-24

申请号：US10889939

申请日：2004-07-13

Applicant: Bin Li ,  Rui Yang ,  Alexander Reznik ,  Ariela Zeira

Inventor： Bin Li ,  Rui Yang ,  Alexander Reznik ,  Ariela Zeira

IPC: H04B1/7115 ,  H04B1/00 ,  H04L25/03 ,  H04Q20060101 ,  H04B1/10

CPC classification number: H04B1/7113 ,  H04B1/7115 ,  H04L25/03038 ,  H04L25/03987 ,  H04L2025/03592

Abstract: A receiver which suppresses inter-cluster multipath interference by processing an impulse channel response consisting of two multipath clusters, each cluster having groups of signals with multiple delays. In one embodiment, the receiver includes a single antenna and parallel-connected delay units used to align the groups of signals before being input into respective sliding window equalizers. The outputs of the equalizers are combined at chip level via a combiner which provides a single output. In another embodiment, a Cluster Multipath Interference Suppression (CMIS) circuit is incorporated into the receiver. The CMIS circuit includes a hard decision unit and a plurality of signal regeneration units to generate replicas of the multipath clusters. The replicas are subtracted from the respective outputs of the delay units and the results are input to the respective sliding window equalizers. In another embodiment, multiple antennas are used to receive and process the clusters.

Abstract translation: 一种通过处理由两个多径簇组成的脉冲信道响应来抑制簇间多径干扰的接收机，每个簇具有多个延迟的信号组。 在一个实施例中，接收机包括单个天线和并联连接的延迟单元，用于在输入到相应的滑动窗口均衡器之前将信号组对准。 均衡器的输出通过提供单个输出的组合器在芯片级组合。 在另一个实施例中，集群多路径干扰抑制（CMIS）电路并入接收机。 CMIS电路包括硬决策单元和多个信号再生单元以生成多路径簇的副本。 从延迟单元的相应输出中减去副本，并将结果输入到各个滑动窗均衡器。 在另一个实施例中，使用多个天线来接收和处理簇。

公开(公告)号：US20050031024A1

公开(公告)日：2005-02-10

申请号：US10791244

申请日：2004-03-02

Applicant: Rui Yang ,  Bin Li ,  Alexander Reznik ,  Ariela Zeira

Inventor： Rui Yang ,  Bin Li ,  Alexander Reznik ,  Ariela Zeira

IPC: H04B1/38 ,  H04L25/02 ,  H04L25/03

CPC classification number: H04L25/03057 ,  H04L25/0212 ,  H04L25/0242 ,  H04L25/03292 ,  H04L2025/03605

Abstract: A sliding window based data estimation is performed. An error is introduced in the data estimation due to the communication model modeling the relationship between the transmitted and received signals. To compensate for an error in the estimated data, the data that was estimated in a previous sliding window step or terms that would otherwise be truncated as noise are used. These techniques allow for the data to be truncated prior to further processing reducing the data of the window.

Abstract translation: 执行基于滑动窗口的数据估计。 由于通信模型对发送和接收信号之间的关系建模，在数据估计中引入了误差。 为了补偿估计数据中的错误，使用在先前的滑动窗口步骤中估计的数据或否则将被截断为噪声的术语。 这些技术允许在进一步处理之前对数据进行截断以减少窗口的数据。

公开(公告)号：US07609794B2

公开(公告)日：2009-10-27

申请号：US12191702

申请日：2008-08-14

Applicant: Alexander Reznik ,  Rui Yang ,  Bin Li ,  Ariela Zeira

Inventor： Alexander Reznik ,  Rui Yang ,  Bin Li ,  Ariela Zeira

IPC: H04B7/10

CPC classification number: H04L25/0242 ,  H04B1/71052 ,  H04L25/0212 ,  H04L25/03057 ,  H04L25/03292 ,  H04L2025/03426 ,  H04L2025/03509 ,  H04L2025/03605

Abstract: Data estimation is performed in a wireless communication system using both oversampling and multiple reception antennas. A receive vector is produced for each antenna at a sampling interval which is a multiple of the chip rate of the received signal. A channel response matrix is produced for each antenna at a preferred multiple of the sampling rate. Each receive vector is processed using a sliding window based approach, where a plurality of successive windows are processed. For each window, a combined circulant channel response matrix is produced using the channel response matrices. Using the combined circulant channel response matrix and a combined received vector comprising each received vector in a discrete Fourier transform based approach to estimate a data vector corresponding to that window; and combining the data vector estimated in each window to form a combined data vector.

Abstract translation: 在使用过采样和多个接收天线的无线通信系统中执行数据估计。 以每个天线的采样间隔产生接收矢量，该采样间隔是接收信号的码片速率的倍数。 以采样率的优选倍数为每个天线产生信道响应矩阵。 使用基于滑动窗口的方法处理每个接收向量，其中处理多个连续的窗口。 对于每个窗口，使用信道响应矩阵来产生组合循环信道响应矩阵。 使用组合循环信道响应矩阵和包括基于离散傅立叶变换的方法中的每个接收向量的组合接收向量来估计对应于该窗口的数据矢量; 并组合在每个窗口中估计的数据矢量以形成组合的数据向量。

公开(公告)号：US07570689B2

公开(公告)日：2009-08-04

申请号：US11238318

申请日：2005-09-29

Applicant: Bin Li ,  Robert A. DiFazio ,  Jung-Lin Pan ,  Alexander Reznik ,  John David Kaewell, Jr. ,  Peter Edward Becker

Inventor： Bin Li ,  Robert A. DiFazio ,  Jung-Lin Pan ,  Alexander Reznik ,  John David Kaewell, Jr. ,  Peter Edward Becker

IPC: H04L25/49 ,  H04L27/04 ,  H03H7/30

CPC classification number: H04L25/03159 ,  H04B17/336

Abstract: A receiver or an integrated circuit (IC) incorporated therein includes a fast Fourier transform (FFT)-based (or hybrid FFT-based) sliding window block level equalizer (BLE) for generating equalized samples. The BLE includes a noise power estimator, first and second channel estimators, an FFT-based chip level equalizer (CLEQ) and a channel monitor unit. The noise power estimator generates a noise power estimate based on two diverse sample data streams. The channel estimators generate respective channel estimates based on the sample data streams. The channel monitor unit generates a first channel monitor signal including truncated channel estimate vectors based on the channel estimates, and a second channel monitor signal which indicates an approximate rate of change of the truncated channel estimate vectors. The FFT-based CLEQ generates the equalized samples based on the noise power estimate, one-block samples of the first and second sample data streams, the channel estimates and the monitor signals.

Abstract translation: 结合在其中的接收器或集成电路（IC）包括用于产生均衡样本的基于快速傅立叶变换（FFT）（或基于混合FFT）的滑动窗口块级均衡器（BLE）。 BLE包括噪声功率估计器，第一和第二信道估计器，基于FFT的码片级均衡器（CLEQ）和信道监视器单元。 噪声功率估计器基于两个不同的采样数据流产生噪声功率估计。 信道估计器基于样本数据流生成相应的信道估计。 信道监视单元基于信道估计产生包括截断的信道估计向量的第一信道监视信号，以及指示截断的信道估计向量的近似变化率的第二信道监视信号。 基于FFT的CLEQ基于噪声功率估计，第一和第二采样数据流的一个块采样，信道估计和监视信号来生成均衡的采样。