公开(公告)号：US20100074378A1

公开(公告)日：2010-03-25

申请号：US12444320

申请日：2007-10-05

申请人： Po Shin Francois Chin ,  Yan Wu ,  Zhongding Lei ,  Sumei Sun

发明人： Po Shin Francois Chin ,  Yan Wu ,  Zhongding Lei ,  Sumei Sun

IPC分类号： H04L27/06 ,  H04B1/10

CPC分类号： H04L25/03171 ,  H04L27/2647 ,  H04L2025/03414

摘要： A method for estimating a signal transmitted via a communication channel from a signal received via the communication channel, is described comprising carrying out a channel-dependent transformation of the received signal; and iteratively determining, channel-independently, an estimate for the transmitted signal on the basis of the transformed received signal.

摘要翻译： 一种用于估计通过通信信道从经由通信信道接收的信号经由通信信道发送的信号的方法，包括：执行所接收的信号的信道相关变换; 并且基于经变换的接收信号，迭代地确定信道独立地对所发送的信号的估计。

公开(公告)号：US07869493B2

公开(公告)日：2011-01-11

申请号：US11573138

申请日：2005-08-03

申请人： Chin Keong Ho ,  Yan Wu ,  Sumei Sun ,  Zhongding Lei

发明人： Chin Keong Ho ,  Yan Wu ,  Sumei Sun ,  Zhongding Lei

IPC分类号： H03H7/30 ,  H03H7/40 ,  H03K5/159

CPC分类号： H04L27/2602 ,  H04L27/2634 ,  H04L27/2649

摘要： A method for detecting a signal received via a communication channel, the communication channel being affected by noise, is described, wherein the received signal is processed according to a filtering step (202), the filtering step comprises multiplication of at least one component of the received signal with a filter coefficient and the filter coefficient comprises a noise variance offset which corresponds to the variance of the noise.

摘要翻译： 一种用于检测经由通信信道接收的信号的方法，所述通信信道受噪声影响，其中根据滤波步骤（202）处理接收信号，所述滤波步骤包括将所述信号的至少一个分量乘以 具有滤波器系数的接收信号，并且滤波器系数包括对应于噪声方差的噪声方差偏移。

公开(公告)号：US08218694B2

公开(公告)日：2012-07-10

申请号：US11573126

申请日：2005-08-03

申请人： Chin Keong Ho ,  Yan Wu ,  Sumei Sun ,  Zhongding Lei

发明人： Chin Keong Ho ,  Yan Wu ,  Sumei Sun ,  Zhongding Lei

IPC分类号： H04B1/10

CPC分类号： H04L27/2602 ,  H04L27/2634 ,  H04L27/2649

摘要： A transmitter (106) for transmitting a signal, the signal comprising a plurality of signal values, the signal values being grouped to at least one signal value block. The transmitter comprises a pre-transformation unit (101) adapted to process each signal value block by a pre-transformation to produce a block of modulation symbols, wherein the pre-transformation comprises a phase rotation of the signal block values, which corresponds to the multiplication of the signal value block with a phase rotation matrix. The transmitter also comprises a modulation unit (102) adapted to modulate at least one carrier signal based on the modulation symbols and a sending unit (104) adapted to send the modulated carrier signal.

摘要翻译： 一种用于发送信号的发射机（106），所述信号包括多个信号值，所述信号值被分组为至少一个信号值块。 发射机包括预变换单元（101），其适于通过预变换来处理每个信号值块以产生调制符号块，其中预变换包括信号块值的相位旋转，其对应于 信号值块与相位旋转矩阵相乘。 发射机还包括适于基于调制符号调制至少一个载波信号的调制单元（102）和适于发送调制载波信号的发送单元（104）。

公开(公告)号：US07986743B2

公开(公告)日：2011-07-26

申请号：US11573146

申请日：2005-08-03

申请人： Chin Keong Ho ,  Yan Wu ,  Sumei Sun ,  Zhongding Lei ,  Ho Wang Fung ,  Ying Chang Liang

发明人： Chin Keong Ho ,  Yan Wu ,  Sumei Sun ,  Zhongding Lei ,  Ho Wang Fung ,  Ying Chang Liang

IPC分类号： H04B7/02

CPC分类号： H04L5/0058 ,  H04B7/0697 ,  H04L1/004 ,  H04L1/0071 ,  H04L1/0618 ,  H04L5/0007 ,  H04L5/0046 ,  H04L27/2627

摘要： A method for transmitting a digital signal is described, wherein the digital signal is to be transmitted by a plurality of antennas and a 2-domain pre-transformation is carried out, i.e., in course of a pre-transformation modulation symbols assigned to subcarriers having different frequencies and assigned to subcarriers sent by different antennas are linearly combined.

摘要翻译： 描述用于发送数字信号的方法，其中数字信号将被多个天线发送，并且执行2域预变换，即，在分配给具有 分配给不同天线发送的子载波的不同频率被线性组合。

公开(公告)号：US08144827B2

公开(公告)日：2012-03-27

申请号：US11573680

申请日：2005-08-13

申请人： Ho Wang Fung ,  Sumei Sun ,  Chin Keong Ho ,  Ying Chang Liang ,  Yan Wu ,  Zhongding Lei

发明人： Ho Wang Fung ,  Sumei Sun ,  Chin Keong Ho ,  Ying Chang Liang ,  Yan Wu ,  Zhongding Lei

IPC分类号： H04L7/04

CPC分类号： H04L27/2613 ,  H04L27/266 ,  H04L27/2675 ,  H04L2027/0028 ,  H04L2027/0048 ,  H04L2027/0095

摘要： A method of determining a residual frequency offset between a transmitter and a receiver in a transmission of data via a communication channel, is described, wherein the message is transmitted from the transmitter to the receiver via the communication channel and the message comprises at least one short preamble (201), at least one long preamble (202) and user data (203). The at least one long preamble (202) comprises residual frequency offset determination information based on which the residual frequency offset is determined.

摘要翻译： 描述了一种在经由通信信道的数据传输中确定发射机和接收机之间的残余频率偏移的方法，其中所述消息经由所述通信信道从所述发射机发射到所述接收机，并且所述消息包括至少一个短路 前导码（201），至少一个长前导码（202）和用户数据（203）。 所述至少一个长前导码（202）包括残留频率偏移确定信息，基于所述剩余频率偏移确定信息确定所述剩余频率偏移。

公开(公告)号：US20090232261A1

公开(公告)日：2009-09-17

申请号：US11573138

申请日：2005-08-03

申请人： Chin Keong Ho ,  Yan Wu ,  Sumei Sun ,  Zhongding Lei

发明人： Chin Keong Ho ,  Yan Wu ,  Sumei Sun ,  Zhongding Lei

IPC分类号： H04B1/10

CPC分类号： H04L27/2602 ,  H04L27/2634 ,  H04L27/2649

摘要： A method for detecting a signal received via a communication channel, the communication channel being affected by noise, is described, wherein the received signal is processed according to a filtering step (202), the filtering step comprises multiplication of at least one component of the received signal with a filter coefficient and the filter coefficient comprises a noise variance offset which corresponds to the variance of the noise.

摘要翻译： 一种用于检测经由通信信道接收的信号的方法，所述通信信道受噪声影响，其中根据滤波步骤（202）处理接收信号，所述滤波步骤包括将所述信号的至少一个分量乘以 具有滤波器系数的接收信号，并且滤波器系数包括对应于噪声方差的噪声方差偏移。

公开(公告)号：US20080260070A1

公开(公告)日：2008-10-23

申请号：US11573126

申请日：2005-08-03

申请人： Chin Keong Ho ,  Yan Wu ,  Sumei Sun ,  Zhongding Lei

发明人： Chin Keong Ho ,  Yan Wu ,  Sumei Sun ,  Zhongding Lei

IPC分类号： H04L27/20 ,  H04L27/22

CPC分类号： H04L27/2602 ,  H04L27/2634 ,  H04L27/2649

摘要： A transmitter (106) for transmitting a signal, the signal comprising a plurality of signal values, the signal values being grouped to at least one signal value block. The transmitter comprises a pre-transformation unit (101) adapted to process each signal value block by a pre-transformation to produce a block of modulation symbols, wherein the pre-transformation comprises a phase rotation of the signal block values, which corresponds to the multiplication of the signal value block with a phase rotation matrix. The transmitter also comprises a modulation unit (102) adapted to modulate at least one carrier signal based on the modulation symbols and a sending unit (104) adapted to send the modulated carrier signal.

摘要翻译： 一种用于发送信号的发射机（106），所述信号包括多个信号值，所述信号值被分组为至少一个信号值块。 发射机包括预变换单元（101），其适于通过预变换来处理每个信号值块以产生调制符号块，其中预变换包括信号块值的相位旋转，其对应于 信号值块与相位旋转矩阵相乘。 发射机还包括适于基于调制符号调制至少一个载波信号的调制单元（102）和适于发送调制载波信号的发送单元（104）。

公开(公告)号：US07970064B2

公开(公告)日：2011-06-28

申请号：US11573682

申请日：2005-08-13

申请人： Ho Wang Fung ,  Sumei Sun ,  Chin Keong Ho ,  Ying Chang Liang ,  Yan Wu ,  Zhongding Lei

发明人： Ho Wang Fung ,  Sumei Sun ,  Chin Keong Ho ,  Ying Chang Liang ,  Yan Wu ,  Zhongding Lei

IPC分类号： H04K1/10

CPC分类号： H04L27/2613 ,  H04L27/266 ,  H04L27/2675 ,  H04L2027/0028 ,  H04L2027/0048 ,  H04L2027/0095

摘要： A transmitter that has a determination unit for determining a plurality of symbols (301) such that each symbol (301) has a tail component (302) and the plurality is determined in such a way that the tail components (302) are substantially equal and a tone generation unit for arranging the plurality of symbols (301) to form a plurality of long preambles (300) such that the plurality of long preambles (300) are tone-interleaved.

摘要翻译： 一种具有用于确定多个符号（301）的确定单元的发送器，使得每个符号（301）具有尾部分量（302），并且以使尾部分量（302）基本相等的方式确定多个， 音调生成单元，用于将多个符号（301）排列成多个长前导码（300），使得多个长前导码（300）被进行音调交织。

公开(公告)号：US07760820B2

公开(公告)日：2010-07-20

申请号：US10525451

申请日：2002-08-28

申请人： Zhongding Lei ,  Yan Wu ,  Chin Keong Ho ,  Sumei Sun ,  Ping He ,  Yuan Li

发明人： Zhongding Lei ,  Yan Wu ,  Chin Keong Ho ,  Sumei Sun ,  Ping He ,  Yuan Li

IPC分类号： H04L27/06

CPC分类号： H04L25/067 ,  H04J11/0026 ,  H04J13/0077 ,  H04L5/0021 ,  H04L25/022 ,  H04L25/0244 ,  H04L25/0256 ,  H04L25/03159 ,  H04L25/03299 ,  H04L27/2647 ,  H04L2025/03414

摘要： A signal reconstructing section (50), a receiver having the signal reconstructing section (50), a communication system having the receiver, and a method for reducing noise in a transformed signal having a plurality of signal components and using the signal reconstructing section (50) are described. The signal reconstructing section (50) of the receiver has a detector (52) for detecting the transformed signal, decision modules (54) each having an input (58) coupled to output (60) of the detector, and a reconstructing module (56) having inputs (62) respectively coupled to output (64) of the decision modules (54). The reconstructing module (56) is adapted to reconstruct one or more subcarriers of the plurality of subcarriers a predetermined number of times to thereby form a noise-reduced transformed signal. Reconstruction of the one or more subcarriers is performed one at a time or two or more simultaneously.

摘要翻译： 信号重建部分（50），具有信号重建部分（50）的接收机，具有接收机的通信系统，以及用于减少具有多个信号分量的变换信号中的噪声并使用信号重构部分（50 ）。 接收机的信号重建部分（50）具有用于检测变换后的信号的检测器（52），每个具有耦合到检测器的输出（60）的输入端（58）的决定模块（54）和重构模块（56 ）具有分别耦合到所述决定模块（54）的输出（64）的输入（62）。 重建模块（56）适于以预定次数重构多个子载波中的一个或多个子载波，从而形成噪声降低的变换信号。 一个或多个副载波的重构一次一个或两个或更多次同时执行。

公开(公告)号：US20080095262A1

公开(公告)日：2008-04-24

申请号：US11573146

申请日：2005-08-03

申请人： Chin Keong Ho ,  Yan Wu ,  Sumei Sun ,  Zhongding Lei

发明人： Chin Keong Ho ,  Yan Wu ,  Sumei Sun ,  Zhongding Lei

IPC分类号： H04L27/00

CPC分类号： H04L5/0058 ,  H04B7/0697 ,  H04L1/004 ,  H04L1/0071 ,  H04L1/0618 ,  H04L5/0007 ,  H04L5/0046 ,  H04L27/2627

摘要： A method for transmitting a digital signal is described, wherein the digital signal is to be transmitted by a plurality of antennas and a 2-domain pre-transformation is carried out, i.e., in course of a pre-transformation modulation symbols assigned to subcarriers having different frequencies and assigned to subcarriers sent by different antennas are linearly combined.

摘要翻译： 描述了用于发送数字信号的方法，其中数字信号将被多个天线发送，并且执行2域预变换，即，在分配给具有 分配给不同天线发送的子载波的不同频率被线性组合。