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公开(公告)号：US07428279B2
公开(公告)日：2008-09-23
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: H03D1/04
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。
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12.发明授权High performance wireless receiver with cluster multipath interference suppression circuit 有权具有集群多径干扰抑制电路的高性能无线接收机公开(公告)号：US07127014B2
公开(公告)日：2006-10-24
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
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，集群多径干扰抑制（CMIS）电路被并入到接收机中。 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。
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公开(公告)号：US20060034398A1
公开(公告)日：2006-02-16
申请号：US11265932
申请日：2005-11-03
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: 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.
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公开(公告)号：US20050069024A1
公开(公告)日：2005-03-31
申请号：US10725788
申请日：2003-12-02
Applicant: Bin Li , Alexander Reznik
Inventor： Bin Li , Alexander Reznik
CPC classification number: H04B1/712 , H04B7/0854
Abstract: A receiver comprises a plurality of antenna elements for receiving a data signal. Each antenna element has a plurality of Rake fingers. Each Rake finger processes a received multipath component of the received data signal of its antenna element by applying a complex weight gain to that received multipath component. A complex weight gain generator determines the complex weight gain for each Rake finger for each antenna element using an input from all the Rake fingers. A summer combines an output of each Rake finger to produce an estimate of the data signal.
Abstract translation: 接收机包括用于接收数据信号的多个天线元件。 每个天线元件具有多个耙指。 每个Rake指针通过对所接收的多路径分量应用复加权增益来处理其天线元件的接收数据信号的接收多径分量。 复合加权增益发生器使用来自所有耙指的输入来确定每个天线元件的每个耙指的复重加权增益。 夏季结合了每个Rake指针的输出以产生数据信号的估计。
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公开(公告)号：US07106780B2
公开(公告)日：2006-09-12
申请号：US10725788
申请日：2003-12-02
Applicant: Bin Li , Alexander Reznik
Inventor： Bin Li , Alexander Reznik
CPC classification number: H04B1/712 , H04B7/0854
Abstract: A receiver comprises a plurality of antenna elements for receiving a data signal. Each antenna element has a plurality of Rake fingers. Each Rake finger processes a received multipath component of the received data signal of its antenna element by applying a complex weight gain to that received multipath component. A complex weight gain generator determines the complex weight gain for each Rake finger for each antenna element using an input from all the Rake fingers. A summer combines an output of each Rake finger to produce an estimate of the data signal.
Abstract translation: 接收机包括用于接收数据信号的多个天线元件。 每个天线元件具有多个耙指。 每个Rake指针通过对所接收的多路径分量应用复加权增益来处理其天线元件的接收数据信号的接收多径分量。 复合加权增益发生器使用来自所有耙指的输入来确定每个天线元件的每个耙指的复重加权增益。 夏季结合了每个Rake指针的输出以产生数据信号的估计。
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Patent Agency Ranking
16.发明授权Channel gain estimation in a rake receiver using complex weight generation (CWG) algorithms 失效使用复权重（CWG）算法的耙式接收机中的信道增益估计公开(公告)号：US06996160B2
公开(公告)日：2006-02-07
申请号：US10718394
申请日：2003-11-20
Applicant: Bin Li , Alexander Reznik
Inventor： Bin Li , Alexander Reznik
IPC: H04B1/69
CPC classification number: H04L25/0232 , H04B1/712 , H04B2201/70701
Abstract: A channel estimation method which reduces the strain on resources of a Rake receiver using a complex weight gain (CWG) algorithm. In one embodiment, a non-adaptive algorithm is used to average blocks of pilot symbols from several slots. In another embodiment, an adaptive algorithm implements sliding window averaging or a recursive filter. Using a CWG algorithm reduces the memory and processor requirements of the Rake receiver.
Abstract translation: 一种信道估计方法，其使用复加权增益（CWG）算法来减少Rake接收机的资源的应变。 在一个实施例中，使用非自适应算法来平均几个时隙中的导频符号块。 在另一个实施例中，自适应算法实现滑动窗口平均或递归滤波器。 使用CWG算法可以降低Rake接收机的内存和处理器要求。
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公开(公告)号：US20050025267A1
公开(公告)日：2005-02-03
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: H04L25/08
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。
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18.发明申请Method and apparatus for estimating Doppler speed in wireless communication 审中-公开用于估计无线通信中的多普勒速度的方法和装置公开(公告)号：US20060262883A1
公开(公告)日：2006-11-23
申请号：US11173026
申请日：2005-07-01
Applicant: Bin Li , Alexander Reznik
Inventor： Bin Li , Alexander Reznik
IPC: H04L27/00
CPC classification number: H04L27/0014 , H04L2027/003 , H04L2027/0065
Abstract: The present invention is related to a method and apparatus for estimating Doppler speed in wireless communication. The apparatus comprises a receiver, a sampler, a pilot/data removal unit, a phase change rate (PCR) measurement unit, a Doppler speed value calculating unit. The receiver receives signals, and the sampler samples the received signals. The pilot/data removal unit removes pilot or data information from the samples. The PCR measurement unit measures a PCR of the samples and the Doppler speed value calculating unit calculates a Doppler speed value based on the PCR. The Doppler speed value calculating unit is preferably a look-up table or a mapping functional unit.
Abstract translation: 本发明涉及一种用于估计无线通信中的多普勒速度的方法和装置。 该装置包括接收机，采样器，导频/数据去除单元，相变速率（PCR）测量单元，多普勒速度值计算单元。 接收机接收信号，采样器对接收到的信号进行采样。 导频/数据删除单元从样本中删除导频或数据信息。 PCR测量单元测量样本的PCR，并且多普勒速度值计算单元基于PCR计算多普勒速度值。 多普勒速度值计算单元优选地是查找表或映射功能单元。
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公开(公告)号：US20060227886A1
公开(公告)日：2006-10-12
申请号：US11238318
申请日：2005-09-29
Applicant: Bin Li , Robert DiFazio , Jung-Lin Pan , Alexander Reznik , John Kaewell , Peter Becker
Inventor： Bin Li , Robert DiFazio , Jung-Lin Pan , Alexander Reznik , John Kaewell , Peter Becker
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.
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