公开(公告)号：US20090190645A1

公开(公告)日：2009-07-30

申请号：US12419333

申请日：2009-04-07

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

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

IPC分类号： H04L25/49 ,  H03H7/30

CPC分类号： H04L25/03159 ,  H04B17/336

摘要： 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.

摘要翻译： 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：US07570689B2

公开(公告)日：2009-08-04

申请号：US11238318

申请日：2005-09-29

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

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

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

CPC分类号： H04L25/03159 ,  H04B17/336

摘要： 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.

摘要翻译： 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：US20060227886A1

公开(公告)日：2006-10-12

申请号：US11238318

申请日：2005-09-29

申请人： Bin Li ,  Robert DiFazio ,  Jung-Lin Pan ,  Alexander Reznik ,  John Kaewell ,  Peter Becker

发明人： Bin Li ,  Robert DiFazio ,  Jung-Lin Pan ,  Alexander Reznik ,  John Kaewell ,  Peter Becker

IPC分类号： H04K1/10 ,  H04B1/10

CPC分类号： H04L25/03159 ,  H04B17/336

摘要： 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.

公开(公告)号：US07590172B2

公开(公告)日：2009-09-15

申请号：US12060541

申请日：2008-04-01

申请人： Bin Li ,  Robert A. DiFazio ,  Ariela Zeira

发明人： Bin Li ,  Robert A. DiFazio ,  Ariela Zeira

IPC分类号： H04B3/46 ,  H04B17/00 ,  H04Q1/20

CPC分类号： H04L1/20 ,  H04B17/336

摘要： A user equipment includes an estimator. The estimator is configured to select a first estimate of a signal-to-noise (SNR) ratio, calculate a first amplitude and first noise variance, calculate a second amplitude and a second noise variance, calculate a second SNR, calculate a resolution value, adjust the first SNR, and perform estimation iterations until the resolution value is equal to a predetermined value.

摘要翻译： 用户设备包括估计器。 估计器被配置为选择信噪比（SNR）比率的第一估计，计算第一幅度和第一噪声方差，计算第二幅度和第二噪声方差，计算第二SNR，计算分辨率值， 调整第一SNR，并执行估计迭代，直到分辨率值等于预定值。

公开(公告)号：US20080181290A1

公开(公告)日：2008-07-31

申请号：US12060541

申请日：2008-04-01

申请人： Bin Li ,  Robert A. DiFazio ,  Ariela Zeira

发明人： Bin Li ,  Robert A. DiFazio ,  Ariela Zeira

IPC分类号： H04B17/00

CPC分类号： H04L1/20 ,  H04B17/336

摘要： A user equipment includes an estimator. The estimator is configured to select a first estimate of a signal-to-noise (SNR) ratio, calculate a first amplitude and first noise variance, calculate a second amplitude and a second noise variance, calculate a second SNR, calculate a resolution value, adjust the first SNR, and perform estimation iterations until the resolution value is equal to a predetermined value.

摘要翻译： 用户设备包括估计器。 估计器被配置为选择信噪比（SNR）比率的第一估计，计算第一幅度和第一噪声方差，计算第二幅度和第二噪声方差，计算第二SNR，计算分辨率值， 调整第一SNR，并执行估计迭代，直到分辨率值等于预定值。

公开(公告)号：US20090060098A1

公开(公告)日：2009-03-05

申请号：US12288630

申请日：2008-10-21

申请人： Bin Li ,  Robert A. DiFazio ,  Donald M. Grieco ,  Ariela Zeira

发明人： Bin Li ,  Robert A. DiFazio ,  Donald M. Grieco ,  Ariela Zeira

IPC分类号： H04L27/06

CPC分类号： H04L27/2331 ,  H04L25/03197 ,  H04L27/2332

摘要： A method for differential phase evaluation of M-ary communication data is employed in which the data consists of N sequential symbols r1 . . . rN, each having one of M transmitted phases. Selected sequences of N−1 elements that represent possible sequences of phase differentials are evaluated using multiple-symbol differential detection. Using r1 as the reference for each phase differential estimate, sN−1 phase differential sequences are selected in the form (P2i, P3i, . . . , PNi) for i=1 to s for evaluating said symbol set, where s is predetermined and 1

摘要翻译： 采用一种用于微分通信数据的差分相位估计的方法，其中数据由N个连续符号r1组成。 。 。 rN，每个都具有M个传输相中的一个。 使用多符号差分检测来评估代表可能的相位差序列的N-1个元素的选定序列。 使用r1作为每个相位差分估计的参考，以i = 1至s的形式（P2i，P3i，...，PNi）选择sN-1相位差分序列，用于评估所述符号集，其中s是预定的， 1