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31. 发明授权

US08654882B2 Method and apparatus of detecting signal based on minimum mean square error in multiple input multiple output system 失效
标题翻译：基于多输入多输出系统的最小均方误差检测信号的方法和装置
公开(公告)号：US08654882B2
公开(公告)日：2014-02-18
申请号：US13453464
申请日：2012-04-23
申请人： Hoon Lee , Young Jo Bang , Seungjae Bang , Jung Pil Choi , Youn Ok Park , Jae Kwon Kim , Nulibyul Kim
发明人： Hoon Lee , Young Jo Bang , Seungjae Bang , Jung Pil Choi , Youn Ok Park , Jae Kwon Kim , Nulibyul Kim
IPC分类号： H04B7/02 , H04L1/02 , H04L27/06
CPC分类号： H04L25/03318 , H04B7/0854 , H04L25/03286 , H04L25/03292 , H04L25/03891 , H04L25/067
摘要： A receiver in a multiple-input multiple-output (MIMO) system is provided. The receiver includes a channel estimator estimating a channel based on a receiving signal, a minimum mean square error (MMSE) based reciprocal log likelihood ratio (R-LLR) calculator connected with the channel estimator and calculating an R-LLR based on the receiving signal and the estimated channel, and a channel decoder connected with the MMSE based R-LLR calculator and decoding the channel and the receiving signal based on the calculated R-LLR, wherein the R-LLR is calculated based on the reciprocity.
摘要翻译：提供了一种多输入多输出（MIMO）系统中的接收机。接收机包括基于接收信号估计信道的信道估计器，与信道估计器连接的基于最小均方误差（MMSE）的倒数似然比（R-LLR）计算器，并基于接收信号计算R-LLR 和估计信道，以及与基于MMSE的R-LLR计算器连接的信道解码器，并且基于所计算的R-LLR对信道和接收信号进行解码，其中基于互易性来计算R-LLR。

32. 发明授权

US08654474B2 Initialization for decoder-based filter calibration 有权
标题翻译：基于解码器的滤波器校准的初始化
公开(公告)号：US08654474B2
公开(公告)日：2014-02-18
申请号：US13525188
申请日：2012-06-15
申请人： Yang Han , Madhusudan Kalluri , Shaohua Yang , Weijun Tan
发明人： Yang Han , Madhusudan Kalluri , Shaohua Yang , Weijun Tan
IPC分类号： G11B5/596 , G11B7/00
CPC分类号： G11B20/18 , H03M13/1102 , H03M13/4138 , H03M13/6331 , H03M13/6337 , H04L25/03178 , H04L25/03318
摘要： Various embodiments of the present inventions are related to initialization of decoder-based filter calibration, and in particular to initially using either a detector output or unconverged data from the decoder to train filter coefficients in a noise predictive calibration engine until data sectors converge in the decoder and can be used to train filter coefficients.
摘要翻译：本发明的各种实施例涉及基于解码器的滤波器校准的初始化，并且特别是关于最初使用来自解码器的检测器输出或未转换数据来训练噪声预测校准引擎中的滤波器系数，直到数据扇区在解码器中收敛并可用于训练滤波器系数。

33. 发明授权

US08644372B1 Method and apparatus for detecting modulation symbols in a communication system 失效
标题翻译：用于检测通信系统中的调制符号的方法和装置
公开(公告)号：US08644372B1
公开(公告)日：2014-02-04
申请号：US13459049
申请日：2012-04-27
申请人： Jamal Riani , Jagadish Venkataraman , Kok-Wui Cheong
发明人： Jamal Riani , Jagadish Venkataraman , Kok-Wui Cheong
IPC分类号： H03H7/30 , H03H7/40 , H03K5/159
CPC分类号： H04L25/03318 , H04L25/03267
摘要： In a method for detecting symbols in a signal received via a communication channel, the signal including a plurality of signal points, each signal point in the plurality of signal points is processed using a decision feedback equalizer (DFE) to produce a DFE decision. Reliability of the DFE decision is assessed to determine whether the DFE decision is at least one of i) reliable or ii) not reliable. When it is determined that the DFE decision is not reliable, a block of signal points of the plurality of signal points is processed using a Viterbi Detector (VD) to generate a block of VD decisions. The block of VD decisions is selected to be used in place of a block of DFE decisions.
摘要翻译：在用于检测通过通信信道接收的信号中的符号的方法中，包括多个信号点的信号，使用判决反馈均衡器（DFE）处理多个信号点中的每个信号点以产生DFE判定。评估DFE决定的可靠性以确定DFE决定是否至少是i）可靠或ii）不可靠。当确定DFE判定不可靠时，使用维特比检测器（VD）处理多个信号点的信号点块，以产生一个VD判定块。选择VD决策块代替DFE决定块。

34. 发明授权

US08611446B2 Communication system using initial likelihood information for performing maximum likelihood sequence estimation (MLSE) 失效
标题翻译：使用初始似然信息进行最大似然序列估计（MLSE）的通信系统
公开(公告)号：US08611446B2
公开(公告)日：2013-12-17
申请号：US12623850
申请日：2009-11-23
申请人： Taizo Maeda , Motoyoshi Sekiya , Takuya Miyashita , Rikiya Watanabe
发明人： Taizo Maeda , Motoyoshi Sekiya , Takuya Miyashita , Rikiya Watanabe
IPC分类号： H04L5/12
CPC分类号： H04L25/03248 , H04L25/03318
摘要： A communication system is provided for communicating over a network. A plurality of transmission devices are disposed within a network and connected by transmission channels. A control device calculates initial data required during an initial operation of the transmission devices and sets the initial data to the transmission devices. The transmission devices perform reception processing using maximum likelihood sequence estimation, and the control device obtains, as the initial data, with respect to paths that are signal communication pathways between the transmission devices and in accordance with transmission states of individual paths, initial likelihood information that is initial-stage likelihood information for performing the maximum likelihood sequence estimation.
摘要翻译：提供一种通过网络通信的通信系统。多个传输设备被布置在网络内并通过传输信道连接。控制装置计算在发送装置的初始操作期间所需的初始数据，并将初始数据设置为发送装置。传输设备使用最大似然序列估计来执行接收处理，并且控制设备获得关于作为发送设备之间的信号通信路径的路径并且根据各个路径的传输状态作为初始数据，初始似然信息是用于执行最大似然序列估计的初始阶段似然信息。

35. 发明授权

US08599914B1 Feed forward equalization for highly-spectrally-efficient communications 有权
公开(公告)号：US08599914B1
公开(公告)日：2013-12-03
申请号：US13755018
申请日：2013-01-31
申请人： MagnaCom Ltd.
发明人： Amir Eliaz
IPC分类号： H03H7/30
CPC分类号： H04L1/0041 , G06F11/10 , H04B1/0475 , H04B1/10 , H04B1/16 , H04B1/709 , H04B17/0085 , H04B17/15 , H04B17/29 , H04B2001/0416 , H04L1/0036 , H04L1/0048 , H04L1/005 , H04L1/0054 , H04L1/203 , H04L1/206 , H04L7/0058 , H04L7/0087 , H04L7/02 , H04L7/042 , H04L23/02 , H04L25/0236 , H04L25/03006 , H04L25/03038 , H04L25/03057 , H04L25/03178 , H04L25/03197 , H04L25/03267 , H04L25/0328 , H04L25/03305 , H04L25/03318 , H04L25/03337 , H04L25/03343 , H04L25/03834 , H04L25/03885 , H04L25/03949 , H04L25/08 , H04L27/00 , H04L27/01 , H04L27/02 , H04L27/04 , H04L27/2278 , H04L27/36 , H04L27/366 , H04L27/368 , H04L27/38 , H04L2025/03369
摘要： A receiver may be operable to receive a signal. A sequence estimation module of the receiver may generate estimated symbols corresponding to the received signal. The generating of the estimated symbols may use tap information associated with one or both of a pulse shaper via which the signal was transmitted and an input filter of the receiver. The sequence estimation module may generate a reconstructed signal based on the estimated symbols and the tap information. A feed forward equalizer (FFE) of the receiver may adapt a plurality of tap coefficients of the FFE based on the reconstructed signal. The signal may be equalized via the FFE. The adaptation of the tap coefficients of the FFE may be based on a least-mean-square (LMS) process for minimizing a mean square of the error signal. An output signal of the FFE may comprise a power gain compensation.

36. 发明授权

US08594247B2 Method and apparatus for channel quality measurements 有权
标题翻译：用于信道质量测量的方法和装置
公开(公告)号：US08594247B2
公开(公告)日：2013-11-26
申请号：US13437066
申请日：2012-04-02
申请人： Ming Jia , Jianglei Ma , Peiying Zhu , Dong-Sheng Yu , Wen Tong
发明人： Ming Jia , Jianglei Ma , Peiying Zhu , Dong-Sheng Yu , Wen Tong
IPC分类号： H03D1/00 , H04L27/06
CPC分类号： H04L1/0631 , H04L1/0003 , H04L1/0009 , H04L1/0036 , H04L1/208 , H04L5/0023 , H04L5/0048 , H04L5/0053 , H04L25/0226 , H04L25/0236 , H04L25/03318 , H04L25/067
摘要： A method and apparatus for measuring channel quality over which has been transmitted a sequence of symbols produced by encoding and constellation mapping a source data element sequence. A sequence of received symbols is received over the channel. The sequence of received symbols is de-mapped based on a first channel quality indicator previously transmitted to a transmitter of the sequence of symbols. The de-mapped symbols are decoded to produce a decoded output sequence. In some embodiments, the decoding may be based on the first channel quality indicator. The decoded output sequence is re-encoded to produce a re-encoded output sequence. The de-mapped symbols are correlated with the re-encoded output sequence to produce a second channel quality indicator. The second channel quality indicator is transmitted to the transmitter to adaptively select a type of mapping based on the second channel quality indicator.
摘要翻译：一种用于测量信道质量的方法和装置，已经发送了通过对源数据元素序列进行编码和星座映射而产生的符号序列。通过该信道接收一系列接收到的符号。基于先前发送到符号序列的发射机的第一信道质量指示符来对接收符号的序列进行解映射。解映射的符号被解码以产生解码的输出序列。在一些实施例中，解码可以基于第一信道质量指示符。解码的输出序列被重新编码以产生重新编码的输出序列。去映射符号与重新编码的输出序列相关，以产生第二信道质量指示符。第二信道质量指示符被发送到发射机，以基于第二信道质量指示符自适应地选择一种类型的映射。

37. 发明申请

US20130272458A1 Communication Signal Decoding and Soft Demapping 有权
标题翻译：通信信号解码和软显示
公开(公告)号：US20130272458A1
公开(公告)日：2013-10-17
申请号：US13915446
申请日：2013-06-11
申请人： Microsoft Corporation
发明人： Ming Jia , Peiying Zhu , Wen Tong , Jianglei Ma
IPC分类号： H04L25/02
CPC分类号： H04L25/02 , H04L25/03318 , H04L2025/03426 , H04L2025/03624
摘要： Symbol detection and soft demapping methods and systems are provided. Individual subset symbol detection according to one or more embodiments involves identifying a search subset of a transmission symbol set for a transmission symbol. For each other transmission symbol in communication signals, multiple search subsets of the transmission symbol set are identified. The multiple search subsets include respective search subsets based on each transmission symbol in either the search subset for the first identified one of the transmission symbols or each of the multiple search subsets identified for a different one of the other transmission symbols. Symbol detection errors may be detected by identifying competing symbols and computing competing distances. Soft demapping may be provided by calculating soft decision results based on detected symbols and weighting the soft decision result.
摘要翻译：提供符号检测和软解映射方法和系统。根据一个或多个实施例的单独子集符号检测涉及识别用于传输符号的传输符号集的搜索子集。对于通信信号中的每个其他传输符号，识别传输符号集合的多个搜索子集。多个搜索子集包括基于针对第一被识别的一个传输符号的搜索子集中的每个传输符号或为其它传输符号中的不同一个标识的多个搜索子集中的每一个的每个传输符号。可以通过识别竞争符号和计算竞争距离来检测符号检测错误。可以通过基于检测到的符号计算软判定结果并对软决策结果加权来提供软解映射。

38. 发明授权

US08559496B1 Signal reception using non-linearity-compensated, partial response feedback 有权
公开(公告)号：US08559496B1
公开(公告)日：2013-10-15
申请号：US13755014
申请日：2013-01-31
申请人： Amir Eliaz
发明人： Amir Eliaz
IPC分类号： H03H7/30
CPC分类号： H04L1/0041 , G06F11/10 , H04B1/0475 , H04B1/10 , H04B1/16 , H04B1/709 , H04B17/0085 , H04B17/15 , H04B17/29 , H04B2001/0416 , H04L1/0036 , H04L1/0048 , H04L1/005 , H04L1/0054 , H04L1/203 , H04L1/206 , H04L7/0058 , H04L7/0087 , H04L7/02 , H04L7/042 , H04L23/02 , H04L25/0236 , H04L25/03006 , H04L25/03038 , H04L25/03057 , H04L25/03178 , H04L25/03197 , H04L25/03267 , H04L25/0328 , H04L25/03305 , H04L25/03318 , H04L25/03337 , H04L25/03343 , H04L25/03834 , H04L25/03885 , H04L25/03949 , H04L25/08 , H04L27/00 , H04L27/01 , H04L27/02 , H04L27/04 , H04L27/2278 , H04L27/36 , H04L27/366 , H04L27/368 , H04L27/38 , H04L2025/03369
摘要： A receiver may receive a signal that was generated by passage of symbols through a non-linear circuit. An equalizer of the receiver may equalize the received signal based on a first non-linearity compensated, inter-symbol correlated (ISC) feedback signal to generate an equalized signal. The receiver may correct a phase error of the equalized signal to generate a phase-corrected equalized signal. The phase correction may be based on a second, non-linearity compensated, inter-symbol correlated (ISC) feedback signal.

39. 发明授权

US08503580B2 Soft value generation using serial localization with indecision 有权
标题翻译：软价值生成使用串行定位与犹豫不决
公开(公告)号：US08503580B2
公开(公告)日：2013-08-06
申请号：US12912927
申请日：2010-10-27
申请人： Ali S. Khayrallah
发明人： Ali S. Khayrallah
IPC分类号： H04L27/06
CPC分类号： H04L25/03318 , H04L25/03229 , H04L25/067 , H04L27/3416 , H04L27/38 , H04L2025/03388 , H04L2025/0342 , H04L2025/03426
摘要： Soft bit values are generated for received symbols transmitted based on a modulation constellation by demodulating the received symbols via a sequence of demodulation stages, each demodulation stage producing a symbol decision based on an effective constellation. Each effective constellation used by a non-final one of the demodulation stages includes subsets of centroids approximating a region of the modulation constellation. Adjacent ones of the subsets have one or more common points so that at least two adjacent subsets overlap. The soft bit values for the symbol decisions are determined based on detection metrics computed during demodulation for the points included in the effective constellation constructed incrementally over the sequence of demodulation stages, the effective constellation produced by the final demodulation stage being devoid of one or more points included in the modulation constellation.
摘要翻译：通过经由解调级的序列对接收到的符号进行解调，基于调制星座发送的接收符号产生软比特值，每个解调阶段基于有效星座产生符号决定。由非最终解调级使用的每个有效星座包括近似调制星座的区域的质心子集。相邻的子集具有一个或多个公共点，使得至少两个相邻子集重叠。用于符号判定的软比特值基于在解调期间计算的针对包括在解调级序列上递增地构成的有效星座中的点的检测度量来确定，由最终解调级产生的有效星座没有一个或多个点包含在调制星座中。

40. 发明授权

US08488722B2 Communication signal decoding and soft demapping methods and systems 有权
标题翻译：通信信号解码和软解映射方法和系统
公开(公告)号：US08488722B2
公开(公告)日：2013-07-16
申请号：US13358786
申请日：2012-01-26
申请人： Ming Jia , Peiying Zhu , Wen Tong , Jianglei Ma
发明人： Ming Jia , Peiying Zhu , Wen Tong , Jianglei Ma
IPC分类号： H03M13/41
CPC分类号： H04L25/02 , H04L25/03318 , H04L2025/03426 , H04L2025/03624
摘要： Symbol detection and soft dempapping methods and systems are provided. Individual subset symbol detection according to an embodiment of the invention involves identifying a search subset of a transmission symbol set for a transmission symbol. For each other transmission symbol in communication signals, multiple search subsets of the transmission symbol set are identified. The multiple search subsets include respective search subsets based on each transmission symbol in either the search subset for the first identified one of the transmission symbols or each of the multiple search subsets identified for a different one of the other transmission symbols. Symbol detection errors may be detected by identifying competing symbols and computing competing distances. Soft demapping may be provided by calculating soft decision results based on detected symbols and weighting the soft decision result.
摘要翻译：提供符号检测和软解压方法和系统。根据本发明的实施例的个体子集符号检测涉及识别用于传输符号的传输符号组的搜索子集。对于通信信号中的每个其他传输符号，识别传输符号集合的多个搜索子集。多个搜索子集包括基于针对第一被识别的一个传输符号的搜索子集中的每个传输符号或为其它传输符号中的不同一个标识的多个搜索子集中的每一个的每个传输符号。可以通过识别竞争符号和计算竞争距离来检测符号检测错误。可以通过基于检测到的符号计算软判定结果并对软决策结果加权来提供软解映射。

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