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71. 发明授权

US08681849B2 Precoder construction and equalization 有权
标题翻译：预编码器构造和均衡
公开(公告)号：US08681849B2
公开(公告)日：2014-03-25
申请号：US11988148
申请日：2005-06-29
申请人： Felix Aleksandrovich Taubin , Sergey Valentinovich Bulatnov
发明人： Felix Aleksandrovich Taubin , Sergey Valentinovich Bulatnov
IPC分类号： H03H7/30 , H03H7/40 , H03K5/159
CPC分类号： H04L25/497 , H04L25/4975
摘要： Apparatus and methods are provided to construct parameters associated with a precoder to a channel. Embodiments include apparatus and methods to apply a maximum a posteriori probability (MAP) equalization using offsets of signals introduced at a transmit end of a channel. Embodiments include apparatus and methods to construct a channel precoder based on using approximation of channel responses for a range of channel lengths.
摘要翻译：提供装置和方法来构建与预编码器相关联的信道到信道。实施例包括使用在信道的发射端引入的信号的偏移来应用最大后验概率（MAP）均衡的装置和方法。实施例包括基于使用信道长度范围的信道响应的近似来构造信道预编码器的装置和方法。

72. 发明授权

US08656243B2 Radio receiver and method for channel estimation 失效
标题翻译：无线电接收机和信道估计方法
公开(公告)号：US08656243B2
公开(公告)日：2014-02-18
申请号：US12686791
申请日：2010-01-13
申请人： Joachim Wehinger
发明人： Joachim Wehinger
IPC分类号： H04L1/18 , H03H7/30
CPC分类号： H04L25/0238 , H04L1/1812 , H04L1/1835 , H04L25/0234 , H04L25/025 , H04L25/03292 , H04L25/03305 , H04L25/067 , H04L2025/03611
摘要： A radio receiver includes an input terminal to receive a first radio signal, an equalizer, coupled to the input terminal, to equalize the first radio signal and to output an equalized signal and a first channel estimator, coupled to the input terminal and the equalizer, to estimate first channel parameters by using the first radio signal and a signal derived from the equalized signal. The radio receiver may contain a controller implementing a HARQ protocol and a HARQ buffer to store likelihood information based on the equalized signal. The radio receiver may contain a reconstruction unit to provide the signal derived from the equalized signal based on a content of the HARQ buffer.
摘要翻译：无线电接收机包括：接收第一无线电信号的输入终端，耦合到输入端的均衡器，以平衡第一无线电信号并输出耦合到输入端和均衡器的均衡信号和第一信道估计器，通过使用第一无线电信号和从均衡信号导出的信号来估计第一信道参数。无线电接收机可以包含实现HARQ协议的控制器和基于均衡信号来存储似然信息的HARQ缓冲器。无线电接收机可以包含重建单元，以根据HARQ缓冲器的内容提供从均衡信号导出的信号。

73. 发明授权

US08654830B1 Systems, circuits and methods for adapting parameters of a linear equalizer in a receiver 失效
标题翻译：用于在接收机中调整线性均衡器的参数的系统，电路和方法
公开(公告)号：US08654830B1
公开(公告)日：2014-02-18
申请号：US12973735
申请日：2010-12-20
申请人： Andrew Lin , Faramarz Bahmani
发明人： Andrew Lin , Faramarz Bahmani
IPC分类号： H03H7/30 , H03H7/40 , H03K5/159
CPC分类号： H04L25/03057
摘要： A receiver is optimized by adapting parameters of a linear equalizer component within the receiver. Data decisions and error decisions are generated. These data decision and error decisions are used to derive an error rate of data by measuring the number of margin hits that occur. A balance value is also calculated from the data decisions and the error decisions. The balance value is used to update parameters of the linear equalizer. The updating of the parameter continues until the number of margin hits has been minimized.
摘要翻译：通过调整接收机内的线性均衡器组件的参数来优化接收机。生成数据决策和错误决策。这些数据决定和错误决定用于通过测量发生的边缘匹配数来导出数据的错误率。还可以从数据决策和错误决策中计算余额值。平衡值用于更新线性均衡器的参数。该参数的更新继续，直到边缘命中的数量已被最小化。

74. 发明授权

US08634453B2 Frame and carrier synchronization for unbursted packetized transmissions using constant-amplitude continuous-phase frequency-modulation 有权
标题翻译：使用恒幅连续相位调制的无突发分组传输的帧和载波同步
公开(公告)号：US08634453B2
公开(公告)日：2014-01-21
申请号：US13040850
申请日：2011-03-04
申请人： Baijayanta Ray , Nikhil A. Deshmukh
发明人： Baijayanta Ray , Nikhil A. Deshmukh
IPC分类号： H03H7/30
CPC分类号： H04L27/2647 , H04B1/7073 , H04L25/03057 , H04L25/0307 , H04L27/2613 , H04L27/2662 , H04W24/00 , H04W28/04 , H04W84/12
摘要： A system and method for performing frame and symbol timing synchronization on samples of a received signal that includes a series of frames. Each frame includes a known preamble and payload data. A start-of-frame time is estimated by scanning the received signal samples for the self similarity of two successive preambles. A carrier frequency offset (CFO) is estimated by maximizing a correlation between a magnitude spectrum of the received signal and a magnitude spectrum of a known preamble model. A fine estimate for the CFO is determined by computing a phase difference between samples separated by p repetitions of the base pattern for various values of index p, and computing a slope of a least squares affine fit to the phase differences. Additional operations are performed to find an optimal symbol starting point, to perform carrier phase synchronization and to detect the start of payload data.
摘要翻译：一种用于对包括一系列帧的接收信号的采样执行帧和符号定时同步的系统和方法。每帧包括已知的前导码和有效载荷数据。通过扫描接收的信号样本来估计两帧连续前导码的自相似性的帧起始时间。通过使接收信号的幅度谱与已知前同步码模型的幅度谱之间的相关性最大化来估计载波频率偏移（CFO）。通过计算针对各种索引p值的基本图案的p次重复分离的样本之间的相位差，并且计算与相位差的最小二乘仿射拟合的斜率，来确定CFO的精确估计。执行附加操作以找到最佳符号起始点，以执行载波相位同步并检测有效载荷数据的开始。

75. 发明授权

US08594173B2 Method for determining updated filter coefficients of an adaptive filter adapted by an LMS algorithm with pre-whitening 有权
标题翻译：用于确定由具有预漂白的LMS算法适配的自适应滤波器的更新的滤波器系数的方法
公开(公告)号：US08594173B2
公开(公告)日：2013-11-26
申请号：US13060030
申请日：2009-08-24
申请人： Robert L Andersen , Grant Davidson
发明人： Robert L Andersen , Grant Davidson
IPC分类号： H03H7/30
CPC分类号： H03H21/0012 , G10L19/012 , H04B3/235
摘要： The application relates to a method for determining at least one updated filter coefficient of an adaptive filter (22) adapted by an LMS algorithm. According to the method, filter coefficients of a first whitening filter (25′) are determined, in particular filter coefficients of an LPC whitening filter. The first whitening filter (25′) generates a filtered signal. A normalization value is determined based on one or more computed values obtained in the course of determining the filter coefficients of the first whitening filter (25′). The normalization value is associated with the energy of the filtered signal. At least one updated filter coefficient of the adaptive filter (22) is determined in dependency on the filtered signal and the normalization value. Preferably, updated filter coefficients for all filter coefficients of the adaptive filter (22) are determined.
摘要翻译：本申请涉及一种用于确定由LMS算法适应的自适应滤波器（22）的至少一个更新的滤波器系数的方法。根据该方法，确定第一白化滤波器（25'）的滤波器系数，特别是LPC白化滤波器的滤波器系数。第一白化滤光器（25'）产生滤波信号。基于在确定第一白化滤波器（25'）的滤波器系数的过程中获得的一个或多个计算值来确定归一化值。归一化值与滤波信号的能量相关联。根据滤波信号和归一化值来确定自适应滤波器（22）的至少一个更新的滤波器系数。优选地，确定自适应滤波器（22）的所有滤波器系数的更新的滤波器系数。

76. 发明授权

US08571095B2 Equalization filter and distortion compensating method 有权
标题翻译：均衡滤波器和失真补偿方法
公开(公告)号：US08571095B2
公开(公告)日：2013-10-29
申请号：US12520468
申请日：2007-11-30
申请人： Shigeki Wada
发明人： Shigeki Wada
IPC分类号： H03H7/30
CPC分类号： H04B3/142 , H04B10/25073
摘要： An equalization filter is provided for solving the problem in which there is a limited range in which compensated for distortion of a transmission signal can be made.Measuring instrument 104 measures a distortion quantity which characterizes distortion of the transmission signal. Comparator 105a generates a differential signal which indicates the difference between the transmission signal and a compensation signal. Delay device 105b delays the differential signal based on the distortion quantity measured by measurement instrument 104 and generates the compensation signal.
摘要翻译：提供了一种均衡滤波器，用于解决可以进行补偿发送信号失真的有限范围的问题。测量仪器104测量表征发送信号失真的失真量。比较器105a产生指示发送信号和补偿信号之间的差的差分信号。延迟装置105b基于由测量仪器104测量的失真量来延迟差分信号，并产生补偿信号。

77. 发明授权

US08553755B2 Interference suppression processing unit and a method of suppressing interference in wireless data communication 有权
标题翻译：干扰抑制处理单元以及抑制无线数据通信中的干扰的方法
公开(公告)号：US08553755B2
公开(公告)日：2013-10-08
申请号：US13099844
申请日：2011-05-03
申请人： Xiaofeng Wu
发明人： Xiaofeng Wu
IPC分类号： H03H7/30 , H04B1/10
CPC分类号： H04L25/03057 , H04L2025/03426
摘要： An interference suppression processing unit includes at least one receive path, wherein each of the at least one receive path is configured to transmit one of at least one received data sequence received from at least one antenna port, a signal generation unit configured to generate at least one signal data sequence from the at least one received data sequence, at least one signal path, wherein each of the at least one signal path is configured to transmit one of the at least one signal data sequence, at least one prefilter unit, wherein each of the at least one prefilter unit is coupled to one of the at least one signal path and a combiner including at least one input terminal, wherein each of the at least one input terminal is connected to an output terminal of one of the at least one prefilter unit, wherein the signal generation unit is configured to generate K1 first signal data sequences, wherein each first signal data sequence is identical to one of the at least one received data sequence, respectively, and K2 second signal data sequences, wherein each second signal data sequence is not identical to one of the at least one received data sequence, respectively, and wherein the number of the first signal data sequences and the second signal data sequences (K1+K2) equals the number of the at least one signal data sequence.
摘要翻译：干扰抑制处理单元包括至少一个接收路径，其中所述至少一个接收路径中的每一个被配置为发送从至少一个天线端口接收的至少一个接收的数据序列中的一个，信号生成单元，被配置为至少产生来自所述至少一个接收数据序列的一个信号数据序列，至少一个信号路径，其中所述至少一个信号路径中的每一个被配置为发送所述至少一个信号数据序列中的一个，至少一个预滤波器单元，其中每个所述至少一个预滤波器单元耦合到所述至少一个信号路径中的一个和组合器，所述组合器包括至少一个输入端子，其中所述至少一个输入端子中的每一个连接到所述至少一个输入端子中的一个的输出端子前置滤波器单元，其中所述信号产生单元被配置为产生K1个第一信号数据序列，其中每个第一信号数据序列与所述至少一个接收数据中的一个相同以及K2个第二信号数据序列，其中每个第二信号数据序列分别与所述至少一个接收数据序列之一不同，并且其中第一信号数据序列和第二信号数据序列 K1 + K2）等于至少一个信号数据序列的数量。

78. 发明授权

US08548097B1 Coarse phase estimation for highly-spectrally-efficient communications 有权
标题翻译：用于高频谱效率通信的粗相位估计
公开(公告)号：US08548097B1
公开(公告)日：2013-10-01
申请号：US13755028
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： Methods and systems are provided for coarse phase estimation for highly-spectrally efficient communications. An example method may include, equalizing, in a receiver, a received inter-symbol correlated (ISC) signal to generate an equalized ISC signal. A phase adjustment signal may be generated based on an ISC feedback signal. The ISC feedback signal may be generated using a sequence estimation process and a non-linearity function. A phase of the equalized ISC signal may be adjusted using the generated phase adjustment signal, to generate a phase adjusted partial response signal. The phase adjustment signal may be generated based on a phase difference between the equalized ISC signal and the partial response feedback signal. At least one ISC vector may be generated by buffering samples of the phase adjusted ISC signal.
摘要翻译：提供了用于高频谱效率通信的粗略相位估计的方法和系统。示例性方法可以包括在接收机中均衡接收到的符号间相关（ISC）信号以产生均衡的ISC信号。可以基于ISC反馈信号生成相位调整信号。可以使用序列估计处理和非线性函数来生成ISC反馈信号。可以使用所生成的相位调整信号来调整均衡的ISC信号的相位，以产生相位调整的部分响应信号。可以基于均衡的ISC信号和部分响应反馈信号之间的相位差来生成相位调整信号。可以通过缓冲相位调整的ISC信号的样本来产生至少一个ISC矢量。

79. 发明授权

US08547897B2 Coherent power combining for signals through multiple satellite communications channels 有权
标题翻译：通过多个卫星通信信道组合信号的相干功率
公开(公告)号：US08547897B2
公开(公告)日：2013-10-01
申请号：US13303781
申请日：2011-11-23
申请人： Donald C. D. Chang
发明人： Donald C. D. Chang
IPC分类号： H04B7/185 , H03H7/30 , H04L27/00
CPC分类号： H04B7/18515 , H04B7/0413 , H04B7/18517 , H04B7/18523 , H04B7/2041 , H04J14/00 , H04J14/005 , H04J14/08 , H04L25/03006
摘要： A communication system and method that allows a transmitter segment (ground end of uplink segment) to dynamically combine power from a plurality of propagation channels (transponders) to improve power levels of signals being transmitted, without affecting the receiver segment (user end of downlink segment) and the propagation segment (space segment), and without modifying propagation apparatus configurations (satellite). Specifically, the transmitter segment generates mixtures of input signals by using Wavefront-Multiplexing and transmits wavefront-multiplexed (WFM) signals through propagation channels to a receiver segment that coherently separates the mixtures of received WFM signals by using adaptive equalization and Wavefront-De-Multiplexing. The WFM signal mixtures allow an operator, or automated system, at the transmitter segment to dynamically allocate equivalent channel (transponder) powers according to continuously changing market demands by dynamically including change of relative input powers into ratios of the WFM signal mixtures being transmitted.
摘要翻译：一种通信系统和方法，其允许发射机段（上行链路段的接地端）动态地组合来自多个传播信道（转发器）的功率，以改善正在传输的信号的功率电平，而不影响接收机段（下行链路段的用户端）和传播段（空间段），并且不修改传播设备配置（卫星）。具体地，发射机段通过使用波前复用产生输入信号的混合，并且通过传播信道将波前复用（WFM）信号发送到接收机段，接收机段通过使用自适应均衡和波前解复用来相干地分离接收的WFM信号的混合。 WFM信号混合允许发射机部分的运营商或自动化系统根据不断变化的市场需求动态分配等效信道（转发器）功率，动态地包括将相对输入功率变化成正在传输的WFM信号混合比的比例。

80. 发明授权

US08514922B2 Filter coefficient control apparatus and method 有权
标题翻译：滤波系数控制装置及方法
公开(公告)号：US08514922B2
公开(公告)日：2013-08-20
申请号：US12835214
申请日：2010-07-13
申请人： Lei Li , Zhenning Tao , Ling Liu , Shoichiro Oda
发明人： Lei Li , Zhenning Tao , Ling Liu , Shoichiro Oda
IPC分类号： H03H7/30
CPC分类号： H04B10/6165 , H04B10/61
摘要： This invention relates to an apparatus and a method for controlling a filter coefficient. The filter coefficient control apparatus controls a coefficient of a filter of a phase recovering apparatus, and comprises a phase offset obtaining means, for obtaining a phase offset between a carrier and a local oscillation; an autocorrelation calculating means, for calculating an autocorrelation and related statistics of the phase offset; and a filter coefficient determining means, for determining the coefficient of the filter in accordance with the autocorrelation and related statistics.
摘要翻译：本发明涉及一种用于控制滤波器系数的装置和方法。滤波器系数控制装置控制相位恢复装置的滤波器的系数，并且包括用于获得载波和本地振荡之间的相位偏移的相位偏移获取装置; 自相关计算装置，用于计算相位偏移的自相关和相关统计; 以及滤波器系数确定装置，用于根据自相关和相关统计确定滤波器的系数。

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