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    • 2. 发明申请
    • HIGHLY-SPECTRALLY-EFFICIENT TRANSMISSION USING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING
    • 正交频分复用高频谱效率传输
    • WO2014016677A3
    • 2014-01-30
    • PCT/IB2013/001866
    • 2013-06-19
    • MAGNACOM LTD.ELIAZ, AmirREUVEN, Ilan
    • ELIAZ, AmirREUVEN, Ilan
    • H04L1/00
    • A transmitter may map, using a selected modulation constellation, each of C' bit sequences to a respective one of C' symbols, where C' is a number greater than one. The transmitter may process the C' symbols to generate C' inter-carrier correlated virtual subcarrier values. The transmitter may decimate the C virtual subcarrier values down to C physical subcarrier values, C being a number less than C'. The transmitter may transmit the C physical subcarrier values on C orthogonal frequency division multiplexed (OFDM) subcarriers. The modulation constellation may be an N-QAM constellation, where N is an integer. The processing may comprise filtering the C' symbols using an array of C' filter tap coefficients. The filtering may comprise cyclic filtering. The filtering may comprise multiplication by a circulant matrix populated with the C' filter tap coefficients.
    • 发射机可以使用选择的调制星座将每个C'比特序列映射到C'符号中相应的一个,其中C'是大于1的数字。 发射机可以处理C'码元以生成C'载波间相关的虚拟副载波值。 发射机可以将C个虚拟子载波值降至C个物理子载波值,C是小于C'的数。 发射机可以在C个正交频分复用(OFDM)子载波上发送C个物理子载波值。 调制星座可以是N-QAM星座,其中N是整数。 该处理可以包括使用C'滤波器抽头系数阵列对C'符号进行滤波。 过滤可以包括循环过滤。 滤波可以包括乘以填充有C'滤波器抽头系数的循环矩阵。
    • 3. 发明申请
    • JOINT OPTIMIZATION OF TRANSMITTER AND RECEIVER PULSE-SHAPING FILTERS
    • 发送器和接收器脉冲形状滤波器的联合优化
    • WO2007110857A3
    • 2009-04-09
    • PCT/IL2007000325
    • 2007-03-13
    • PROVIGENT LTDELIAZ AMIRRIDEL ERAN
    • ELIAZ AMIRRIDEL ERAN
    • H04K1/10
    • H04L25/03834H04B1/7172H04B1/7174
    • A method for jointly designing a transmitter pulse-shaping filter (36) and a receiver pulse-shaping filter (68) having respective filter coefficients includes defining one or more performance-related variables based on at least some of the filter coefficients of the transmitter and receiver pulse-shaping filters. One or more constraints applicable to one or more of the filter coefficients and variables are set. A cost function defined over the variables is evaluated. Optimized filter coefficient values of the transmitter and receiver pulse-shaping filters are jointly calculated by applying an optimization process to the cost function while meeting the one or more constraints.
    • 用于联合设计具有各个滤波器系数的发射机脉冲整形滤波器(36)和接收机脉冲整形滤波器(68)的方法包括基于发射机的至少一些滤波器系数来定义一个或多个与性能有关的变量,以及 接收器脉冲整形滤波器。 设置适用于一个或多个滤波器系数和变量的一个或多个约束。 对变量定义的成本函数进行评估。 通过在满足一个或多个约束的情况下对成本函数应用优化过程来共同计算发射机和接收机脉冲整形滤波器的优化滤波器系数值。
    • 4. 发明申请
    • MODEM CONTROL USING CROSS-POLARIZATION INTERFERENCE ESTIMATION
    • 使用跨极化干扰估计的调制解调器控制
    • WO2007057911A2
    • 2007-05-24
    • PCT/IL2006/001344
    • 2006-11-21
    • PROVIGENT LTD.ELIAZ, AmirTURGEMAN, AviAHARONY, AhikamFRIEDMANN, Jonathan
    • ELIAZ, AmirTURGEMAN, AviAHARONY, AhikamFRIEDMANN, Jonathan
    • H04B1/10
    • H04L25/03057H04B7/10
    • A receiver (32) includes an input circuit, which is coupled to at least one antenna (28) so as to receive, process and digitize first and second signals, thus generating first and second streams of input samples. An interference cancellation circuit (46) in the receiver includes first and second adaptive filters (64, 66), which are respectively coupled to filter the first and second streams of input samples using respective first and second coefficients to generate respective first and second filter outputs. A phase rotator (68, 71) is adapted to apply a variable phase shift compensating for a phase deviation between the first and second signals, the phase rotator having at least one configuration parameter. A control module (67) is operative to estimate signal characteristics of the interference cancellation circuit and to set the at least one configuration parameter of the phase rotator responsively to the estimated signal characteristics.
    • 接收器(32)包括输入电路,其被耦合到至少一个天线(28),以便接收,处理和数字化第一和第二信号,从而产生第一和第二输入样本流。 接收机中的干扰消除电路(46)包括第一和第二自适应滤波器(64,66),它们分别被耦合以使用相应的第一和第二系数对第一和第二输入样本流进行滤波,以产生相应的第一和第二滤波器输出 。 相位旋转器(68,71)适于对第一和第二信号之间的相位偏移应用可变相移补偿,所述相位旋转器具有至少一个配置参数。 控制模块(67)可操作以估计干扰消除电路的信号特性并且响应于估计的信号特性来设置相位旋转器的至少一个配置参数。
    • 8. 发明申请
    • HIGHLY-SPECTRALLY-EFFICIENT RECEPTION USING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING
    • 正交频分复用高频谱有效接收
    • WO2014006515A2
    • 2014-01-09
    • PCT/IB2013/002383
    • 2013-06-20
    • MAGNACOM LTD.ELIAZ, AmirREUVEN, Ilan
    • ELIAZ, AmirREUVEN, Ilan
    • H04J14/02
    • H04L27/2628H04L1/0054H04L25/02H04L25/03038H04L25/03159H04L25/03197H04L25/03821H04L25/497H04L27/2647H04L27/3405H04L2025/03414H04L2025/0342H04L2025/03522
    • Circuitry for use in a receiver may comprise: a front-end circuit operable to receive an orthogonal frequency division multiplexing (OFDM) symbol on a first number of physical subcarriers. The circuitry may comprise a decoding circuit operable to decode the OFDM symbol using an inter-carrier interference (ICI) model, the decoding resulting in a determination of a sequence of symbols, comprising a second number of symbols, that most-likely correspond to the received OFDM symbol, where the second number is greater than the first number. The sequence of symbols may comprise N- QAM symbols, N being an integer. The ISCI model may be based, at least in part, on non-linearity experienced by the OFDM symbol during transmission by a transmitter, propagation over a channel, and/or reception by the receiver. The ISCI model may be based, at least in part, on phase-noise introduced to the OFDM symbol during transmission by a transmitter, propagation over a channel, and/or reception by the receiver.
    • 在接收器中使用的电路可以包括:前端电路,可操作用于在第一数量的物理子载波上接收正交频分复用(OFDM)符号。 该电路可以包括解码电路,该解码电路可操作以使用载波间干扰(ICI)模型来解码OFDM符号,该解码导致确定包括第二数量的符号的符号序列,该符号最可能对应于 接收的OFDM符号,其中第二数目大于第一数目。 符号序列可以包括N-QAM符号,N是整数。 ISCI模型可以至少部分地基于OFDM符号在发射机发射,信道上的传播和/或接收机接收期间经历的非线性。 ISCI模型可以至少部分地基于在发射机发射期间引入OFDM符号的相位噪声,信道上的传播和/或接收机的接收。
    • 10. 发明申请
    • MODEM CONTROL USING CROSS-POLARIZATION INTERFERENCE ESTIMATION
    • 使用跨极化干扰估计的调制解调器控制
    • WO2007057911A3
    • 2009-04-16
    • PCT/IL2006001344
    • 2006-11-21
    • PROVIGENT LTDELIAZ AMIRTURGEMAN AVIAHARONY AHIKAMFRIEDMANN JONATHAN
    • ELIAZ AMIRTURGEMAN AVIAHARONY AHIKAMFRIEDMANN JONATHAN
    • H04B7/185
    • H04L25/03057H04B7/10
    • A receiver (32) includes an input circuit, which is coupled to at least one antenna (28) so as to receive, process and digitize first and second signals, thus generating first and second 5 streams of input samples. An interference cancellation circuit (46) in the receiver includes first and second adaptive filters (64, 66), which are respectively coupled to filter the first and second streams of input samples using respective first and second coefficients to generate respective first and second filter outputs. A phase rotator (68, 71) is adapted to apply a variable phase shift compensating for a phase deviation between the first and second signals, the phase rotator having at least one configuration parameter. A control module (67) is operative to estimate signal characteristics of the interference cancellation circuit and to set the at least one configuration parameter of the phase rotator responsively to the estimated signal characteristics.
    • 接收器(32)包括输入电路,其被耦合到至少一个天线(28),以便接收,处理和数字化第一和第二信号,从而产生第一和第二输入样本流。 接收机中的干扰消除电路(46)包括第一和第二自适应滤波器(64,66),它们分别被耦合以使用相应的第一和第二系数对第一和第二输入样本流进行滤波,以产生相应的第一和第二滤波器输出 。 相位旋转器(68,71)适于对第一和第二信号之间的相位偏移应用可变相移补偿,所述相位旋转器具有至少一个配置参数。 控制模块(67)可操作以估计干扰消除电路的信号特性并且响应于估计的信号特性来设置相位旋转器的至少一个配置参数。