公开(公告)号：US20120106575A1

公开(公告)日：2012-05-03

申请号：US13283497

申请日：2011-10-27

申请人： Jong-Ee OH ,  Sok-Kyu Lee ,  Min-Ho Cheong ,  Jee-Yon Choi ,  Jae-Woo Park ,  Hyun-Kyu Chung

发明人： Jong-Ee OH ,  Sok-Kyu Lee ,  Min-Ho Cheong ,  Jee-Yon Choi ,  Jae-Woo Park ,  Hyun-Kyu Chung

IPC分类号： H04J3/24

CPC分类号： H04L1/0057 ,  H03M13/1102 ,  H03M13/23 ,  H03M13/6527 ,  H04L1/0068 ,  H04L1/0075 ,  H04L1/0083

摘要： Disclosed is an apparatus and method for transmitting/receiving data using a low-density parity check (LDPC) coding scheme in a communication system. The method includes generating a multi-user data packet containing data to be transmitted to a plurality of users, encoding the multi-user data packet as a BCC and an LDPC code, and transmitting the encoded multi-user data packet to the plurality of users. In the method, the encoding of the multi-user data packet encodes MPDU subframes corresponding to each of the plurality of users in the multi-user data packet as the LDPC code, and calculates information on a length in LDPC encoding, corresponding to the encoding of the multi-user data packet as the LDPC code.

摘要翻译： 公开了一种在通信系统中使用低密度奇偶校验（LDPC）编码方案发送/接收数据的装置和方法。 该方法包括生成包含要发送给多个用户的数据的多用户数据分组，将多用户数据分组编码为BCC和LDPC码，并将编码的多用户数据分组发送给多个用户 。 在该方法中，多用户数据分组的编码将与多用户数据分组中的多个用户中的每一个对应的MPDU子帧编码为LDPC码，并且计算与LDPC编码相对应的LDPC编码长度的信息 作为LDPC码的多用户数据分组。

公开(公告)号：US08615023B2

公开(公告)日：2013-12-24

申请号：US13283497

申请日：2011-10-27

申请人： Jong-Ee Oh ,  Sok-Kyu Lee ,  Min-Ho Cheong ,  Jee-Yon Choi ,  Jae-Woo Park ,  Hyun-Kyu Chung

发明人： Jong-Ee Oh ,  Sok-Kyu Lee ,  Min-Ho Cheong ,  Jee-Yon Choi ,  Jae-Woo Park ,  Hyun-Kyu Chung

IPC分类号： H04J3/24

CPC分类号： H04L1/0057 ,  H03M13/1102 ,  H03M13/23 ,  H03M13/6527 ,  H04L1/0068 ,  H04L1/0075 ,  H04L1/0083

摘要： Disclosed is an apparatus and method for transmitting/receiving data using a low-density parity check (LDPC) coding scheme in a communication system. The method includes generating a multi-user data packet containing data to be transmitted to a plurality of users, encoding the multi-user data packet as a BCC and an LDPC code, and transmitting the encoded multi-user data packet to the plurality of users. In the method, the encoding of the multi-user data packet encodes MPDU subframes corresponding to each of the plurality of users in the multi-user data packet as the LDPC code, and calculates information on a length in LDPC encoding, corresponding to the encoding of the multi-user data packet as the LDPC code.

摘要翻译： 公开了一种在通信系统中使用低密度奇偶校验（LDPC）编码方案发送/接收数据的装置和方法。 该方法包括生成包含要发送给多个用户的数据的多用户数据分组，将多用户数据分组编码为BCC和LDPC码，并将编码的多用户数据分组发送给多个用户 。 在该方法中，多用户数据分组的编码将与多用户数据分组中的多个用户中的每一个对应的MPDU子帧编码为LDPC码，并且计算与LDPC编码相对应的LDPC编码长度的信息 作为LDPC码的多用户数据分组。

公开(公告)号：US20100031116A1

公开(公告)日：2010-02-04

申请号：US12443688

申请日：2007-10-01

申请人： Chan-Ho Yoon ,  Jong-Ee Oh ,  Min-Ho Cheong ,  Yu-Ro Lee ,  Sok-Kyu Lee ,  Hee-Jung Yu ,  Seung-Chan Bang

发明人： Chan-Ho Yoon ,  Jong-Ee Oh ,  Min-Ho Cheong ,  Yu-Ro Lee ,  Sok-Kyu Lee ,  Hee-Jung Yu ,  Seung-Chan Bang

IPC分类号： H03M13/05 ,  G06F11/10

CPC分类号： H03M13/116 ,  H03M13/1185 ,  H03M13/1188

摘要： There is provided to a method for encoding an LDPC (Low Density Parity Check) code using the result of checking a previously specified parity, including the steps of: forming a parity bit check matrix having a dual diagonal structure consisting of (N-K) rows for check nodes and (N-K) columns on the basis of the H matrix; calculating the values of all the parity bits by inserting a given binary value in sub-blocks, with the parity bit check matrix formed on the H matrix; if the values of the parity bits are incorrect, checking the parity bit corresponding to the sub-block located in the last part of the H matrix; searching the parity bit parts where the parity bit check result is represented as “1”; performing an XOR operation in sub-blocks on the parity bit part obtained through a simultaneous equation between the parity bits of the searched parity bit parts and the parity bit parts; and determining the value of the parity bit satisfying the condition that the value obtained by multiplying the H matrix by a code word vector.

摘要翻译： 提供了一种使用检查先前指定的奇偶校验的结果来编码LDPC（低密度奇偶校验）码的方法，包括以下步骤：形成具有由（NK）行组成的双对角线结构的奇偶校验位校验矩阵，用于 基于H矩阵检查节点和（NK）列; 通过在H块中形成奇偶校验位校验矩阵，在子块中插入给定的二进制值来计算所有奇偶校验位的值; 如果奇偶校验位的值不正确，则检查与位于H矩阵的最后部分中的子块相对应的奇偶校验位; 搜索奇偶校验位检查结果被表示为“1”的奇偶校验位部分; 在通过搜索到的奇偶校验位部分的奇偶校验位与奇偶校验位部分之间的联立方程获得的奇偶校验位部分的子块中执行异或运算; 以及确定所述奇偶校验位的值满足将所述H矩阵乘以码字矢量而获得的值的条件。

公开(公告)号：US08392792B2

公开(公告)日：2013-03-05

申请号：US12443688

申请日：2007-10-01

申请人： Chan-Ho Yoon ,  Jong-Ee Oh ,  Min-Ho Cheong ,  Yu-Ro Lee ,  Sok-Kyu Lee ,  Hee-Jung Yu ,  Seung-Chan Bang

发明人： Chan-Ho Yoon ,  Jong-Ee Oh ,  Min-Ho Cheong ,  Yu-Ro Lee ,  Sok-Kyu Lee ,  Hee-Jung Yu ,  Seung-Chan Bang

IPC分类号： H03M13/00

CPC分类号： H03M13/116 ,  H03M13/1185 ,  H03M13/1188

摘要： There is provided to a method for encoding an LDPC (Low Density Parity Check) code using the result of checking a previously specified parity, including the steps of: forming a parity bit check matrix having a dual diagonal structure consisting of (N-K) rows for check nodes and (N-K) columns on the basis of the H matrix; calculating the values of all the parity bits by inserting a given binary value in sub-blocks, with the parity bit check matrix formed on the H matrix; if the values of the parity bits are incorrect, checking the parity bit corresponding to the sub-block located in the last part of the H matrix; searching the parity bit parts where the parity bit check result is represented as “1”; performing an XOR operation in sub-blocks on the parity bit part obtained through a simultaneous equation between the parity bits of the searched parity bit parts and the parity bit parts; and determining the value of the parity bit satisfying the condition that the value obtained by multiplying the H matrix by a code word vector.

摘要翻译： 提供了一种使用检查先前指定的奇偶校验的结果来编码LDPC（低密度奇偶校验）码的方法，包括以下步骤：形成具有由（NK）行组成的双对角线结构的奇偶校验位校验矩阵，用于 基于H矩阵检查节点和（NK）列; 通过在H块中形成奇偶校验位校验矩阵，在子块中插入给定的二进制值来计算所有奇偶校验位的值; 如果奇偶校验位的值不正确，则检查与位于H矩阵的最后部分中的子块相对应的奇偶校验位; 搜索奇偶校验位检查结果表示为1的校验位部分; 在通过搜索到的奇偶校验位部分的奇偶校验位与奇偶校验位部分之间的联立方程获得的奇偶校验位部分的子块中执行异或运算; 以及确定所述奇偶校验位的值满足将所述H矩阵乘以码字矢量而获得的值的条件。

公开(公告)号：US08223876B2

公开(公告)日：2012-07-17

申请号：US12443686

申请日：2007-09-21

申请人： Yu-Ro Lee ,  Min-Ho Cheong ,  Hee-Jung Yu ,  Jong-Ee Oh ,  Chan-Ho Yoon ,  Young-Gyun Kim ,  Sok-Kyu Lee ,  Seung-Chan Bang

发明人： Yu-Ro Lee ,  Min-Ho Cheong ,  Hee-Jung Yu ,  Jong-Ee Oh ,  Chan-Ho Yoon ,  Young-Gyun Kim ,  Sok-Kyu Lee ,  Seung-Chan Bang

IPC分类号： H04L27/28 ,  H04L1/02 ,  H04B1/10

CPC分类号： H04L27/2647

摘要： Provided are an apparatus for receiving signals in an OFDM communication system using multiple transmission/reception antennas and a method thereof. The method includes modulating a predetermined part of a data stream based on a multi-dimensional reception procedure to generate a first modulated data stream; regenerating a symbol corresponding to the modulated data stream; eliminating the regenerated symbol from a remained data stream; modulating the eliminated data stream to generate a second modulated data stream; and outputting an output signal obtained by serializing the first modulated data stream and the second modulated data stream.

摘要翻译： 提供一种在使用多个发送/接收天线的OFDM通信系统中接收信号的装置及其方法。 该方法包括基于多维接收过程来调制数据流的预定部分以产生第一调制数据流; 再生对应于调制数据流的符号; 从剩余的数据流中消除再生符号; 调制消除的数据流以产生第二调制数据流; 并输出通过串行化第一调制数据流和第二调制数据流而获得的输出信号。

公开(公告)号：US20100002806A1

公开(公告)日：2010-01-07

申请号：US12443686

申请日：2007-09-21

申请人： Yu-Ro Lee ,  Min-Ho Cheong ,  Hee-Jung Yu ,  Jong-Ee Oh ,  Chan-Ho Yoon ,  Young-Gyun Kim ,  Sok-Kyu Lee ,  Seung-Chan Bang

发明人： Yu-Ro Lee ,  Min-Ho Cheong ,  Hee-Jung Yu ,  Jong-Ee Oh ,  Chan-Ho Yoon ,  Young-Gyun Kim ,  Sok-Kyu Lee ,  Seung-Chan Bang

IPC分类号： H04L27/00

CPC分类号： H04L27/2647

摘要： Provided are an apparatus for receiving signals in an OFDM communication system using multiple transmission/reception antennas and a method thereof. The method includes modulating a predetermined part of a data stream based on a multi-dimensional reception procedure to generate a first modulated data stream; regenerating a symbol corresponding to the modulated data stream; eliminating the regenerated symbol from a remained data stream; modulating the eliminated data stream to generate a second modulated data stream; and outputting an output signal obtained by serializing the first modulated data stream and the second modulated data stream.

摘要翻译： 提供一种在使用多个发送/接收天线的OFDM通信系统中接收信号的装置及其方法。 该方法包括：基于多维接收过程来调制数据流的预定部分以产生第一调制数据流; 再生对应于调制数据流的符号; 从剩余的数据流中消除再生符号; 调制消除的数据流以产生第二调制数据流; 并输出通过串行化第一调制数据流和第二调制数据流而获得的输出信号。

公开(公告)号：US20070133815A1

公开(公告)日：2007-06-14

申请号：US11604898

申请日：2006-11-28

申请人： Min-Ho Cheong ,  Hyeong-Jun Park ,  Yong-Hwan Lee

发明人： Min-Ho Cheong ,  Hyeong-Jun Park ,  Yong-Hwan Lee

IPC分类号： A61F11/06

CPC分类号： H04B1/0475

摘要： The present invention is related to a partially overlapped single-carrier crosstalk signal cancellation method and an apparatus using the same. For this purpose, the present invention provides a crosstalk canceller including a pre-processor for frequency down-shifting an input signal, a crosstalk signal cancellation module for canceling the crosstalk signal by dividing the input signal by an interpolation ratio, a post-processor for converting an output of the crosstalk signal cancellation modulation into a passband signal, and an error feedback processor for performing a decimation operation on a residual crosstalk signal and feeding backing the decimated residual crosstalk signal to the crosstalk signal cancellation module. In addition, the present invention provides a crosstalk signal cancellation method for performing interpolation and filtering operations by frequency down-shifting an input signal including a crosstalk signal to a baseband and decimating a residual crosstalk signal by frequency-shifting to an original signal frequency. According to the present invention, implementation complexity of the crosstalk signal canceller can be reduced and the crosstalk signal cancellation process can be preformed at a low speed by using the interpolation filter and the decimation filter, thereby achieving reduction of computational complexity.

摘要翻译： 本发明涉及部分重叠的单载波串扰信号消除方法及其使用方法。 为此目的，本发明提供了一种串扰消除器，包括用于降频输入信号的预处理器，用于通过将输入信号除以插值比来消除串扰信号的串扰信号消除模块，后处理器 将串扰信号消除调制的输出转换为通带信号，以及误差反馈处理器，用于对残留串扰信号执行抽取操作，并将抽取的残留串扰信号馈送到串扰信号消除模块。 此外，本发明提供了一种串扰信号消除方法，用于通过将包括串扰信号的输入信号降频到基带并通过频移到原始信号频率来抽取残留串扰信号来执行插值和滤波操作。 根据本发明，可以减少串扰信号消除器的实现复杂度，并且可以通过使用内插滤波器和抽取滤波器以低速执行串扰信号消除处理，从而实现计算复杂度的降低。

公开(公告)号：US07640000B2

公开(公告)日：2009-12-29

申请号：US11604898

申请日：2006-11-28

申请人： Min-Ho Cheong ,  Hyeong-Jun Park ,  Yong-Hwan Lee

发明人： Min-Ho Cheong ,  Hyeong-Jun Park ,  Yong-Hwan Lee

IPC分类号： H04B1/10 ,  H03D1/04

CPC分类号： H04B1/0475

摘要： The present invention is related to a partially overlapped single-carrier crosstalk signal cancellation method and an apparatus using the same. For this purpose, the present invention provides a crosstalk canceller including a pre-processor for frequency down-shifting an input signal, a crosstalk signal cancellation module for canceling the crosstalk signal by dividing the input signal by an interpolation ratio, a post-processor for converting an output of the crosstalk signal cancellation modulation into a passband signal, and an error feedback processor for performing a decimation operation on a residual crosstalk signal and feeding backing the decimated residual crosstalk signal to the crosstalk signal cancellation module. In addition, the present invention provides a crosstalk signal cancellation method for performing interpolation and filtering operations by frequency down-shifting an input signal including a crosstalk signal to a baseband and decimating a residual crosstalk signal by frequency-shifting to an original signal frequency.

摘要翻译： 本发明涉及部分重叠的单载波串扰信号消除方法及其使用方法。 为此目的，本发明提供了一种串扰消除器，包括用于降频输入信号的预处理器，用于通过将输入信号除以插值比来消除串扰信号的串扰信号消除模块，后处理器 将串扰信号消除调制的输出转换为通带信号，以及误差反馈处理器，用于对残留串扰信号执行抽取操作，并将抽取的残留串扰信号馈送到串扰信号消除模块。 此外，本发明提供了一种串扰信号消除方法，用于通过将包括串扰信号的输入信号降频到基带并通过频移到原始信号频率来抽取残留串扰信号来执行插值和滤波操作。

公开(公告)号：US07769100B2

公开(公告)日：2010-08-03

申请号：US11636711

申请日：2006-12-11

申请人： Min-Ho Cheong ,  Hyeong-Jun Park ,  Yong-Hwan Lee

发明人： Min-Ho Cheong ,  Hyeong-Jun Park ,  Yong-Hwan Lee

IPC分类号： H04B15/00

CPC分类号： H04B3/32

摘要： In a method of canceling crosstalk signals, decoding or precoding through a diagonal channel analysis of the user domain and the time domain is performed, in addition to decoding or precoding in the user and time domains.

摘要翻译： 在消除串扰信号的方法中，除了用户和时域中的解码或预编码之外，还执行对用户域和时域的对角线信道分析的解码或预编码。

公开(公告)号：US20070133723A1

公开(公告)日：2007-06-14

申请号：US11636711

申请日：2006-12-11

申请人： Min-Ho Cheong ,  Hyeong-Jun Park ,  Yong-Hwan Lee

发明人： Min-Ho Cheong ,  Hyeong-Jun Park ,  Yong-Hwan Lee

IPC分类号： H03D1/04 ,  H04B14/04

CPC分类号： H04B3/32

摘要： The present invention relates to a method and an apparatus for cancellation of crosstalk signals using multi-dimensional coordination and vectored transmission. A method of canceling crosstalk signals in a receiver includes a step of multi-dimensionally decomposing the received signals into a user domain and a time domain, a step of calculating a transposed matrix and a diagonal matrix of a unit matrix from the received signals, a step of decoding the received signals with respect to symbols taking the user domain using the transposed matrix and the diagonal matrix of the unit matrix, and a step of decoding the signal decoded in the user domain with respect to symbols taking the time domain so as to calculate the data vectors from which the crosstalk signals are cancelled. Further, a method of canceling crosstalk signals in a transmitter includes a step of multiplying the data vectors to be transmitted from a pre-distortion matrix so as to calculate transmission signals, a step of multi-dimensionally decomposing the transmission signals into a time domain and a user domain, a step of precoding the transmission signals in the time domain and precoding the transmission signals in the user domain, a step of multiplying the signals precoded in the time domain and the user domain by the pre-distortion matrix so as to calculate second transmission signals, and a step of multiplying the second transmission signals by the unit matrix and transmitting the result to the receiver. According to the present invention, near-end crosstalk (NEXT) and far-end crosstalk (FEXT) can be cancelled, computer work in a central system managing cable lines can be reduced, and cable capacity for data transmission can be increased.

摘要翻译： 本发明涉及使用多维协调和矢量传输来消除串扰信号的方法和装置。 消除接收机中的串扰信号的方法包括将接收到的信号多维分解为用户域和时域的步骤，从接收信号计算单位矩阵的转置矩阵和对角矩阵的步骤， 使用转置的矩阵和单位矩阵的对角矩阵相对于采用用户域的符号对接收到的信号进行解码的步骤，以及对于采用时域的符号在用户域中解码的信号进行解码的步骤，以便 计算消除串扰信号的数据向量。 此外，消除发送机中的串扰信号的方法包括：将从前失真矩阵发送的数据向量相乘以计算发送信号的步骤，将发送信号多维分解为时域， 用户域，在时域中对发送信号进行预编码并对用户域中的发送信号进行预编码的步骤，将在时域中预编码的信号与用户域乘以预失真矩阵的步骤，以计算 第二传输信号，以及将第二传输信号乘以单位矩阵并将结果发送给接收机的步骤。 根据本发明，可以消除近端串扰（NEXT）和远端串扰（FEXT），可以减少管理电缆线路的中央系统的计算机工作，并且可以提高用于数据传输的电缆容量。