公开(公告)号：US08913629B2

公开(公告)日：2014-12-16

申请号：US13623579

申请日：2012-09-20

申请人： Lawrence W. Yonge, III ,  Srinivas Katar ,  William E. Earnshaw ,  Stefano Galli ,  Akio Kurobe ,  Hisao Koga ,  Nobutaka Kodama ,  Jose Abad Molina ,  Oleg Logvinov ,  Paul Dixon ,  Olivier Isson

发明人： Lawrence W. Yonge, III ,  Srinivas Katar ,  William E. Earnshaw ,  Stefano Galli ,  Akio Kurobe ,  Hisao Koga ,  Nobutaka Kodama ,  Jose Abad Molina ,  Oleg Logvinov ,  Paul Dixon ,  Olivier Isson

IPC分类号： H04L12/43

CPC分类号： H04B7/2656 ,  H04B3/54

摘要： Within a domain of a master device, devices that share a power line as a communications medium monitor signal detection windows to sense network status. The devices transmit sensed network status to the master device. The master device allocates channel resources based on the network statuses communicated by the devices within the domain.

摘要翻译： 在主设备的领域内，共享电力线作为通信介质的设备监视信号检测窗口以感测网络状态。 设备将感测到的网络状态发送到主设备。 主设备根据域内设备传送的网络状态分配信道资源。

公开(公告)号：US20080002798A1

公开(公告)日：2008-01-03

申请号：US10572295

申请日：2004-09-15

申请人： Thierry Lenez ,  Patrice Lenez ,  Jean-Benoit Pierrot ,  Olivier Isson

发明人： Thierry Lenez ,  Patrice Lenez ,  Jean-Benoit Pierrot ,  Olivier Isson

IPC分类号： H04L7/04 ,  H04J3/06

CPC分类号： H04L27/2656 ,  H04L27/2675

摘要： Detection method and device for a receiver in a digital communication system designed to process a frame comprising a periodic sub-set of length n, said method comprising the following steps: —determining a first vector u having a length n;—determining a second shifted vector v;—calculating a correlation function between said first and second vectors; —calculating a quadratic error function between said first and second vectors;—calculating a first cost function that is a linear combination of both preceding functions and, according to the sign of the result,—calculating a second cost function of frame beginning estimate; and—starting the communication system receiver.

摘要翻译： 数字通信系统中的接收机的检测方法和装置，被设计用于处理包括长度为n的周期性子集的帧，所述方法包括以下步骤： - 确定具有长度n的第一向量u; - 确定第二移位 矢量v; - 计算所述第一和第二矢量之间的相关函数; - 计算所述第一和第二向量之间的二次误差函数; - 计算作为前述函数的线性组合的第一成本函数，并且根据结果的符号 - 计算帧开始估计的第二成本函数; 并启动通信系统接收器。

公开(公告)号：US07103015B1

公开(公告)日：2006-09-05

申请号：US09517417

申请日：2000-03-02

申请人： Olivier Isson ,  Tomas Nordstrom

发明人： Olivier Isson ,  Tomas Nordstrom

IPC分类号： H04B3/20

CPC分类号： H04B3/231 ,  H04L27/2647

摘要： A digital subscriber line transmission system comprising an IFFT circuit generating successive outgoing time domain symbols on a subscriber line from respective groups of digital frequency domain coefficients; an FFT circuit generating groups of digital frequency domain coefficients from respective incoming time domain symbols received on the subscriber line, a current incoming symbol being delayed with respect to a current outgoing symbol by a predetermined time interval; and circuitry for, during an end portion of a current incoming symbol, subtracting from the signal received on the subscriber line an estimated echo obtained by a filter from a signal portion following the end of the current outgoing symbol, and adding thereto, through said filter, a beginning portion of the current outgoing symbol, wherein said portions have a duration at least equal to said predetermined time interval.

摘要翻译： 一种数字用户线路传输系统，包括：IFFT电路，用于在来自相应的数字频域系数组的用户线路上产生连续的输出时域符号; FFT电路，生成来自在用户线路上接收的相应输入时域符号的数字频域系数组，当前输入符号相对于当前输出符号延迟预定时间间隔; 以及用于在当前输入符号的结束部分期间从在所述用户线路上接收到的信号中减去由所述当前输出符号结束之后的信号部分中由滤波器获得的估计回波，并且通过所述滤波器 ，当前输出符号的开始部分，其中所述部分具有至少等于所述预定时间间隔的持续时间。

公开(公告)号：US08897345B2

公开(公告)日：2014-11-25

申请号：US13992849

申请日：2012-01-26

申请人： Hervé Milleret ,  Olivier Isson

发明人： Hervé Milleret ,  Olivier Isson

IPC分类号： H04B1/38 ,  H04B3/54 ,  H04B3/06 ,  H04B3/46 ,  H04L1/24 ,  H04L25/02 ,  H04L25/03

CPC分类号： H04B3/542 ,  H04B3/06 ,  H04B3/46 ,  H04B3/54 ,  H04B2203/5445 ,  H04L1/243 ,  H04L25/0278 ,  H04L25/03828

摘要： Method for transmitting a signal using a transmission power mask is disclosed. The signal is transmitted by a transceiver A and is connected to a transceiver B via at least one physical link; wherein the transmission power mask is adapted according to a transfer function relative to the impedance of the physical link, so as the power lost during signal transmission is taken into account.

摘要翻译： 公开了使用发送功率掩码发送信号的方法。 信号由收发器A发送，并通过至少一个物理链路连接到收发器B; 其中传输功率掩模根据相对于物理链路的阻抗的传递函数进行调整，以便考虑信号传输期间的功率损耗。

公开(公告)号：US20120020439A1

公开(公告)日：2012-01-26

申请号：US13126696

申请日：2009-10-29

申请人： Fabrice Belveze ,  Olivier Isson

发明人： Fabrice Belveze ,  Olivier Isson

IPC分类号： H04L27/06

CPC分类号： H04L27/2647 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/0216 ,  H04L25/022 ,  H04L25/0232 ,  H04L25/0234

摘要： The invention concerns receive circuitry for demodulating an input signal received from a transmission channel, the receive circuitry including a frequency interpolation filter arranged to provide channel estimations (Ĥn) of the entire channel, the frequency interpolation filter having at least one filter receiving the pilot frequency channel estimations and performing filtering based on a plurality (Q) of the pilot channel estimations at a time; and a memory arranged to store the filter coefficients for the at least one filter, the coefficients being based on a frequency-domain autocorrelation of a model of the transmission channel, the model representing the time distribution of the channel power of the transmission channel determined independently of the pilot frequency channel estimations, wherein said model is based on a χ2 distribution.

摘要翻译： 本发明涉及用于解调从传输信道接收的输入信号的接收电路，所述接收电路包括被配置为提供整个信道的信道估计（Ĥn）的频率内插滤波器，所述频率内插滤波器具有接收所述导频的至少一个滤波器 信道估计和基于多个导频信道估计的Q进行滤波; 以及存储器，其被布置为存储用于所述至少一个滤波器的滤波器系数，所述系数基于所述传输信道的模型的频域自相关，所述模型表示独立地确定的所述传输信道的信道功率的时间分布 的导频信道估计，其中所述模型基于χ2分布。

公开(公告)号：US20070237249A1

公开(公告)日：2007-10-11

申请号：US11710869

申请日：2007-02-26

申请人： Olivier Isson ,  Fabrice Belveze ,  Fatima Aourik

发明人： Olivier Isson ,  Fabrice Belveze ,  Fatima Aourik

IPC分类号： H04K1/10

CPC分类号： H04L25/0232 ,  H04L27/2607 ,  H04L27/2647

摘要： A method of COFDM demodulation of symbols, each including first carriers conveying data and pilots having their frequency positions varying at least partly from one symbol to the next symbol. The method includes, for each symbol, a step of determining a first estimate of the transfer function of the channel for each carrier in a set of the first carriers of the symbol such that, for the frequency positions of the considered carriers, symbols different from the symbol include pilots, corresponding to a linear combination of second estimates determined for pilots at the frequency of said carrier. The coefficients of the linear combination are determined in iterative fashion, a new coefficient value being equal to the sum of the last value of the coefficient and of a term including the product between an iteration step and an error term, the iteration step being determined in iterative fashion.

摘要翻译： 符号的COFDM解调的方法，每个包括传送数据的第一载波和其频率位置至少部分地从一个符号变化到下一个符号的导频。 该方法包括对于每个符号，确定符号的第一载波的集合中的每个载波的信道的传递函数的第一估计的步骤，使得对于所考虑的载波的频率位置，不同于 符号包括导频，对应于为所述载波的频率处的导频确定的第二估计的线性组合。 以迭代方式确定线性组合的系数，新的系数值等于系数的最后值与包括迭代步骤和误差项之间的乘积的项的和，迭代步骤在 迭代时尚。

公开(公告)号：US06987800B2

公开(公告)日：2006-01-17

申请号：US09737155

申请日：2000-12-14

申请人： Tomas Nordström ,  Daniel Bengtsson ,  Olivier Isson

发明人： Tomas Nordström ,  Daniel Bengtsson ,  Olivier Isson

IPC分类号： H04B1/38

CPC分类号： H04B3/32

摘要： The invention relates to a far-end crosstalk canceling circuit for a digital subscriber line transmission system, the transmission system including a plurality of line termination modems receiving discrete multitone symbols from corresponding network termination modems over a plurality of transmission channels. The invention estimates the modulated data actually transmitted by the network termination modems from the frequency components of the discrete multitone symbols received by the line termination modems and to evaluate the far-end crosstalk as a linear combination of these estimates. Far-end crosstalk cancellation for all the line termination modems is also provided in a centralized manner.

摘要翻译： 本发明涉及一种用于数字用户线传输系统的远端串扰消除电路，该传输系统包括多个线路终端调制解调器，其通过多个传输信道从相应的网络终端调制解调器接收离散多音符号。 本发明根据由终端调制解调器接收到的离散多音符号的频率分量来估计由网络终端调制解调器实际发送的调制数据，并且将远端串扰评价为这些估计的线性组合。 所有线路终端调制解调器的远端串扰消除也以集中的方式提供。

公开(公告)号：US09300516B2

公开(公告)日：2016-03-29

申请号：US13126696

申请日：2009-10-29

申请人： Fabrice Belveze ,  Olivier Isson

发明人： Fabrice Belveze ,  Olivier Isson

IPC分类号： H04L1/02 ,  H04L27/26 ,  H04L25/02 ,  H04L5/00

CPC分类号： H04L27/2647 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/0216 ,  H04L25/022 ,  H04L25/0232 ,  H04L25/0234

摘要： The invention concerns receive circuitry for demodulating an input signal received from a transmission channel, the receive circuitry including a frequency interpolation filter arranged to provide channel estimations (Ĥn) of the entire channel, the frequency interpolation filter having at least one filter receiving the pilot frequency channel estimations and performing filtering based on a plurality (Q) of the pilot channel estimations at a time; and a memory arranged to store the filter coefficients for the at least one filter, the coefficients being based on a frequency-domain autocorrelation of a model of the transmission channel, the model representing the time distribution of the channel power of the transmission channel determined independently of the pilot frequency channel estimations, wherein said model is based on a χ2 distribution.

摘要翻译： 本发明涉及用于解调从传输信道接收的输入信号的接收电路，所述接收电路包括被配置为提供整个信道的信道估计（Ĥn）的频率内插滤波器，所述频率内插滤波器具有接收所述导频的至少一个滤波器 信道估计和基于每次导频信道估计的多个（Q）进行滤波; 以及存储器，其被布置为存储用于所述至少一个滤波器的滤波器系数，所述系数基于所述传输信道的模型的频域自相关，所述模型表示独立地确定的所述传输信道的信道功率的时间分布 的导频信道估计，其中所述模型基于χ2分布。

公开(公告)号：US08699591B2

公开(公告)日：2014-04-15

申请号：US13145308

申请日：2010-01-08

申请人： Olivier Isson

发明人： Olivier Isson

IPC分类号： H04L27/28

CPC分类号： H04L25/03834 ,  H04L27/2626

摘要： A method and apparatus to reduce the level of quantification noise when transmission power varies with frequency. Power variation is carried out in the analog domain by filtering a frequency band and attenuating a complementary band in two signal analog-processing paths. More precisely, the method for reducing the quantification noise for transmitting a multi-carrier signal comprises an IFFT conversion step, a digital-to-analog conversion step and an analog-processing step of the signal frequencies on a band having a maximal frequency. Moreover, the analog processing step includes at least two processing paths in parallel to the analog signal, in which: for at least one first path, the signal is filtered so as to retain only the frequencies of a low-frequency band and, in parallel in at least one second path, the signal is subjected to gain, amplification or gain attenuation and, in a final step, the signals from the paths are summed.

摘要翻译： 一种当发射功率随频率变化时降低量化噪声水平的方法和装置。 通过对两个信号模拟处理路径中的频带进行滤波和衰减互补频带，在模拟域中进行功率变化。 更准确地说，减少用于发送多载波信号的量化噪声的方法包括IFFT转换步骤，数模转换步骤和具有最大频率的频带上的信号频率的模拟处理步骤。 此外，模拟处理步骤包括与模拟信号并联的至少两个处理路径，其中：对于至少一个第一路径，对信号进行滤波以仅保持低频带的频率，并行地并行 在至少一个第二路径中，信号经受增益，放大或增益衰减，并且在最后的步骤中，来自路径的信号相加。

公开(公告)号：US08295301B2

公开(公告)日：2012-10-23

申请号：US12485468

申请日：2009-06-16

申请人： Lawrence W. Yonge, III ,  Srinivas Katar ,  William E. Earnshaw ,  Stefano Galli ,  Akio Kurobe ,  Hisao Koga ,  Nobutaka Kodama ,  Jose Abad Molina ,  Oleg Logvinov ,  Paul Dixon ,  Olivier Isson

发明人： Lawrence W. Yonge, III ,  Srinivas Katar ,  William E. Earnshaw ,  Stefano Galli ,  Akio Kurobe ,  Hisao Koga ,  Nobutaka Kodama ,  Jose Abad Molina ,  Oleg Logvinov ,  Paul Dixon ,  Olivier Isson

IPC分类号： H04J3/06 ,  H04L12/43 ,  H04L12/413 ,  H04L27/00

CPC分类号： H04B7/2656 ,  H04B3/54

摘要： Communication systems that use different physical layer (PHY) protocols can coexist on a communication medium (e.g., a powerline medium) by using an Inter-PHY Protocol (IPP). The different protocols may use different signal modulation schemes but still may have some features in common. The IPP includes a resource sharing mechanism that regulates access to the communication medium by devices functioning as communication devices (for example, devices communicating over a power line). A subset of devices that communicate among each other form a logical network that shares the medium with other logical networks that use either the same PHY protocol or a different PHY protocol.

摘要翻译： 使用不同物理层（PHY）协议的通信系统可以通过使用帧间协议（IPP）在通信介质（例如，电力线介质）上共存。 不同的协议可以使用不同的信号调制方案，但仍然可以具有一些共同的特征。 IPP包括资源共享机制，其通过用作通信设备的设备（例如，通过电力线通信的设备）来调节对通信介质的访问。 在彼此之间通信的设备的子集形成与使用相同PHY协议或不同PHY协议的其他逻辑网络共享介质的逻辑网络。