公开(公告)号：US08345806B2

公开(公告)日：2013-01-01

申请号：US12154954

申请日：2008-05-28

申请人： Sung-Yoon Jung ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Jong-Ho Lee ,  Hyun-Cheol Park ,  Hyoun-Kuk Kim ,  Ki-Hwan Jeon

发明人： Sung-Yoon Jung ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Jong-Ho Lee ,  Hyun-Cheol Park ,  Hyoun-Kuk Kim ,  Ki-Hwan Jeon

IPC分类号： H04B7/10

CPC分类号： H04L25/0206

摘要： An apparatus and a method are provided for detecting N number of TX signals in a MIMO wireless communication system. The apparatus includes an RF processor, a channel estimator, and a signal detector. The RF processor converts signals, received through multiple antennas, into baseband signals. The channel estimator estimates channel information of the respective antennas by using the received signals. The signal detector arranges the baseband signals of the respective antennas on the basis of the channel information, calculates a threshold value of each stage, and selects symbols with a cumulative metric smaller than or equal to the threshold value as candidates at each stage, to detect a TX signal vector with N number of symbols.

摘要翻译： 提供了一种用于在MIMO无线通信系统中检测N个TX信号的装置和方法。 该装置包括RF处理器，信道估计器和信号检测器。 RF处理器将通过多个天线接收的信号转换为基带信号。 信道估计器通过使用所接收的信号来估计各个天线的信道信息。 信号检测器基于信道信息布置各个天线的基带信号，计算每一级的阈值，并且选择具有小于或等于阈值的累积度量的符号作为每个级的候选，以检测 具有N个符号的TX信号向量。

公开(公告)号：US20080298491A1

公开(公告)日：2008-12-04

申请号：US12154954

申请日：2008-05-28

申请人： Sung-Yoon Jung ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Jong-Ho Lee ,  Hyun-Cheol Park ,  Hyoun-Kuk Kim ,  Ki-Hwan Jeon

发明人： Sung-Yoon Jung ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Jong-Ho Lee ,  Hyun-Cheol Park ,  Hyoun-Kuk Kim ,  Ki-Hwan Jeon

IPC分类号： H04L27/28

CPC分类号： H04L25/0206

摘要： An apparatus and a method are provided for detecting N number of TX signals in a MIMO wireless communication system. The apparatus includes an RF processor, a channel estimator, and a signal detector. The RF processor converts signals, received through multiple antennas, into baseband signals. The channel estimator estimates channel information of the respective antennas by using the received signals. The signal detector arranges the baseband signals of the respective antennas on the basis of the channel information, calculates a threshold value of each stage, and selects symbols with a cumulative metric smaller than or equal to the threshold value as candidates at each stage, to detect a TX signal vector with N number of symbols.

摘要翻译： 提供了一种用于在MIMO无线通信系统中检测N个TX信号的装置和方法。 该装置包括RF处理器，信道估计器和信号检测器。 RF处理器将通过多个天线接收的信号转换为基带信号。 信道估计器通过使用所接收的信号来估计各个天线的信道信息。 信号检测器基于信道信息布置各个天线的基带信号，计算每一级的阈值，并且选择具有小于或等于阈值的累积度量的符号作为每个级的候选，以检测 具有N个符号的TX信号向量。

公开(公告)号：US07995677B2

公开(公告)日：2011-08-09

申请号：US12157627

申请日：2008-06-12

申请人： Jong-Ho Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Sung-Yoon Jung ,  Soong-Yoon Choi ,  Hyun-Cheol Park ,  Hyoun-Kuk Kim

发明人： Jong-Ho Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Sung-Yoon Jung ,  Soong-Yoon Choi ,  Hyun-Cheol Park ,  Hyoun-Kuk Kim

IPC分类号： H03K9/00

CPC分类号： H04L25/03012 ,  H04L1/0631 ,  H04L1/0668 ,  H04L25/0204 ,  H04L25/0242 ,  H04L25/0246 ,  H04L25/067

摘要： An apparatus and method for detecting a signal in a receiver by maximum likelihood (ML) are provided, in which symbols are detected according to the number of transmit antennas of a transmitter and a modulation scheme, channels are estimated, an equivalent channel matrix corresponding to the estimated channels is determined, a permuted equivalent channel matrix is determined by multiplying the equivalent channel matrix by a predetermined permutation matrix, the permuted equivalent channel matrix is QR decomposed, a hard decision is performed on predetermined symbols among the detected symbols using a received signal resulting from the QR decomposition, and the log likelihood ratios (LLRs) of the hard-decided symbols are determined.

摘要翻译： 提供一种用于通过最大似然（ML）检测接收机中的信号的装置和方法，其中根据发射机的发射天线的数量和调制方案检测符号，估计信道，对应于 确定估计的信道，通过将等效信道矩阵乘以预定的置换矩阵来确定置换的等效信道矩阵，将经排列的等效信道矩阵QR分解，使用接收信号对检测符号中的预定符号执行硬判决 由QR分解产生，并确定硬判决符号的对数似然比（LLR）。

公开(公告)号：US20090028265A1

公开(公告)日：2009-01-29

申请号：US12157627

申请日：2008-06-12

申请人： Jong-Ho Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Sung-Yoon Jung ,  Soong-Yoon Choi ,  Hyun-Cheol Park ,  Hyoun-Kuk Kim

发明人： Jong-Ho Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Sung-Yoon Jung ,  Soong-Yoon Choi ,  Hyun-Cheol Park ,  Hyoun-Kuk Kim

IPC分类号： H04L1/02 ,  H04L27/06 ,  H04L27/28

CPC分类号： H04L25/03012 ,  H04L1/0631 ,  H04L1/0668 ,  H04L25/0204 ,  H04L25/0242 ,  H04L25/0246 ,  H04L25/067

摘要： An apparatus and method for detecting a signal in a receiver by maximum likelihood (ML) are provided, in which symbols are detected according to the number of transmit antennas of a transmitter and a modulation scheme, channels are estimated, an equivalent channel matrix corresponding to the estimated channels is determined, a permuted equivalent channel matrix is determined by multiplying the equivalent channel matrix by a predetermined permutation matrix, the permuted equivalent channel matrix is QR decomposed, a hard decision is performed on predetermined symbols among the detected symbols using a received signal resulting from the QR decomposition, and the log likelihood ratios (LLRs) of the hard-decided symbols are determined.

摘要翻译： 提供一种用于通过最大似然（ML）检测接收机中的信号的装置和方法，其中根据发射机的发射天线的数量和调制方案检测符号，估计信道，对应于 确定估计的信道，通过将等效信道矩阵乘以预定的置换矩阵来确定置换的等效信道矩阵，将经排列的等效信道矩阵QR分解，使用接收信号对检测符号中的预定符号执行硬判决 由QR分解产生，并确定硬判决符号的对数似然比（LLR）。

公开(公告)号：US08369438B2

公开(公告)日：2013-02-05

申请号：US12454272

申请日：2009-05-14

申请人： Joo-Hyun Lee ,  Sung-Soo Hwang ,  Sang-Boh Yun ,  Jong-Ho Lee ,  Sung-Yoon Jung ,  Joonhyuk Kang ,  Kyung-Ho Park ,  Jong-Sub Cha ,  Namseok Chang ,  Keon-Kook Lee

发明人： Joo-Hyun Lee ,  Sung-Soo Hwang ,  Sang-Boh Yun ,  Jong-Ho Lee ,  Sung-Yoon Jung ,  Joonhyuk Kang ,  Kyung-Ho Park ,  Jong-Sub Cha ,  Namseok Chang ,  Keon-Kook Lee

IPC分类号： H04B7/02

CPC分类号： H04L25/03203 ,  H04L25/03191 ,  H04L25/0328 ,  H04L25/03343 ,  H04L2025/03426

摘要： An iterative tree search-based preceding method for a multi-user Multi-Input Multi-Output (MIMO) communication system includes determining a reference value of a cumulative branch metric of a candidate symbol, eliminating candidates having values that exceed the determined reference value of the cumulative branch metric of the candidate symbol, and registering values, which do not exceed the determined reference value of the cumulative branch metric of the candidate symbol, as entries, and selecting the least value from the values registered as the entries. Thereby, the method has low complexity and similar performance compared to an existing Sphere Encoding (SE) technique.

摘要翻译： 用于多用户多输入多输出（MIMO）通信系统的基于迭代树搜索的先前方法包括确定候选符号的累积分支度量的参考值，消除具有超过确定的参考值的值的候选者 候选符号的累积分支度量，以及将不超过所确定的候选符号的累积分支度量的参考值的值登记为条目，并从登记为条目的值中选择最小值。 因此，与现有的球体编码（SE）技术相比，该方法具有低复杂性和相似的性能。

公开(公告)号：US20090286494A1

公开(公告)日：2009-11-19

申请号：US12454272

申请日：2009-05-14

申请人： Joo-Hyun Lee ,  Sung-Soo Hwang ,  Sang-Boh Yun ,  Jong-Ho Lee ,  Sung-Yoon Jung ,  Joonhyuk Kang ,  Kyung-Ho Park ,  Jong-Sub Cha ,  Namseok Chang ,  Keon-Kook Lee

发明人： Joo-Hyun Lee ,  Sung-Soo Hwang ,  Sang-Boh Yun ,  Jong-Ho Lee ,  Sung-Yoon Jung ,  Joonhyuk Kang ,  Kyung-Ho Park ,  Jong-Sub Cha ,  Namseok Chang ,  Keon-Kook Lee

IPC分类号： H04B1/04

CPC分类号： H04L25/03203 ,  H04L25/03191 ,  H04L25/0328 ,  H04L25/03343 ,  H04L2025/03426

摘要： An iterative tree search-based preceding method for a multi-user Multi-Input Multi-Output (MIMO) communication system includes determining a reference value of a cumulative branch metric of a candidate symbol, eliminating candidates having values that exceed the determined reference value of the cumulative branch metric of the candidate symbol, and registering values, which do not exceed the determined reference value of the cumulative branch metric of the candidate symbol, as entries, and selecting the least value from the values registered as the entries. Thereby, the method has low complexity and similar performance compared to an existing Sphere Encoding (SE) technique.

摘要翻译： 用于多用户多输入多输出（MIMO）通信系统的基于迭代树搜索的先前方法包括确定候选符号的累积分支度量的参考值，消除具有超过确定的参考值的值的候选者 候选符号的累积分支度量，以及将不超过所确定的候选符号的累积分支度量的参考值的值登记为条目，并从登记为条目的值中选择最小值。 因此，与现有的球体编码（SE）技术相比，该方法具有低复杂性和相似的性能。

公开(公告)号：US08194773B2

公开(公告)日：2012-06-05

申请号：US12284922

申请日：2008-09-26

申请人： Sung-Yoon Jung ,  Sang-Boh Yun ,  Sung-Soo Hwang ,  Jong-Ho Lee

发明人： Sung-Yoon Jung ,  Sang-Boh Yun ,  Sung-Soo Hwang ,  Jong-Ho Lee

IPC分类号： H04L5/12 ,  H04L27/28

CPC分类号： H04L25/03343 ,  H04L5/0053 ,  H04L2025/03414 ,  H04L2025/03802

摘要： Disclosed is a system and method for transmitting feedback information in a communication system. A receiver calculates a minimum distance of each two symbol vectors among all symbol vectors which can be received through a kth subcarrier among a plurality of subcarriers, in which a channel state of the kth subcarrier and a jth precoder among precoders included in a codebook set are applied; calculates sums of minimum distances by adding minimum distances calculated for the plurality of subcarriers according to each precoder; determines a precoder corresponding to a value greatest among the sums of minimum distances calculated according to the precoders, as a precoder representing the plurality of subcarriers; and feeds the feedback information including a precoder index of the determined precoder back to a transmitter.

摘要翻译： 公开了一种用于在通信系统中发送反馈信息的系统和方法。 接收机计算在多个子载波中可以通过第k个子载波接收的所有符号向量中的每两个符号向量的最小距离，其中包括在码本集中的预编码器中第k个副载波和第j个预编码器的信道状态是 应用; 通过根据每个预编码器添加针对多个子载波计算的最小距离来计算最小距离的和; 确定对应于根据预编码器计算的最小距离之和中最大值的预编码器作为表示多个子载波的预编码器; 并将包括所确定的预编码器的预编码器索引的反馈信息反馈给发射机。

公开(公告)号：US20090086840A1

公开(公告)日：2009-04-02

申请号：US12284922

申请日：2008-09-26

申请人： Sung-Yoon Jung ,  Sang-Boh Yun ,  Sung-Soo Hwang ,  Jong-Ho Lee

发明人： Sung-Yoon Jung ,  Sang-Boh Yun ,  Sung-Soo Hwang ,  Jong-Ho Lee

IPC分类号： H04L5/12 ,  H04L27/28

CPC分类号： H04L25/03343 ,  H04L5/0053 ,  H04L2025/03414 ,  H04L2025/03802

摘要： Disclosed is a system and method for transmitting feedback information in a communication system. A receiver calculates a minimum distance of each two symbol vectors among all symbol vectors which can be received through a kth subcarrier among a plurality of subcarriers, in which a channel state of the kth subcarrier and a jth precoder among precoders included in a codebook set are applied; calculates sums of minimum distances by adding minimum distances calculated for the plurality of subcarriers according to each precoder; determines a precoder corresponding to a value greatest among the sums of minimum distances calculated according to the precoders, as a precoder representing the plurality of subcarriers; and feeds the feedback information including a precoder index of the determined precoder back to a transmitter.

摘要翻译： 公开了一种用于在通信系统中发送反馈信息的系统和方法。 接收机计算在多个子载波中可以通过第k个子载波接收的所有符号向量中的每两个符号向量的最小距离，其中包括在码本集中的预编码器中的第k个副载波和第j个预编码器的信道状态是 应用; 通过根据每个预编码器添加针对多个子载波计算的最小距离来计算最小距离的和; 确定对应于根据预编码器计算的最小距离之和中最大值的预编码器作为表示多个子载波的预编码器; 并将包括所确定的预编码器的预编码器索引的反馈信息反馈给发射机。

公开(公告)号：US08155046B2

公开(公告)日：2012-04-10

申请号：US12319951

申请日：2009-01-14

申请人： Sung-Yoon Jung ,  Jong-Ho Lee ,  Sang-Boh Yun ,  Joo-Hyun Lee

发明人： Sung-Yoon Jung ,  Jong-Ho Lee ,  Sang-Boh Yun ,  Joo-Hyun Lee

IPC分类号： H04B7/14 ,  H04B3/36 ,  H04B1/60

CPC分类号： H04L5/143 ,  H04B7/15585 ,  H04B7/2606 ,  H04L5/0023 ,  H04L5/1461 ,  H04L25/0204 ,  H04L25/0228 ,  H04L25/0244 ,  H04L25/025 ,  H04L27/2655

摘要： An apparatus and method for interference cancellation and synchronization maintenance over interference channel estimation in a communication system are provided. An interference channel estimator fixes synchronization and estimates an interference signal. An interference signal controller eliminates the estimated interference signal from a received RF signal. A synchronization unit unfixes fixed synchronization and tracks synchronization when the interference signal cancellation is stable. A data buffer stores data from which the interference signal is canceled.

摘要翻译： 提供了一种用于在通信系统中的干扰消除和同步维护干扰信道估计的装置和方法。 干扰信道估计器固定同步并估计干扰信号。 干扰信号控制器消除来自接收的RF信号的估计的干扰信号。 当干扰信号消除稳定时，同步单元解码固定同步并跟踪同步。 数据缓冲器存储干扰信号被取消的数据。

公开(公告)号：US08275076B2

公开(公告)日：2012-09-25

申请号：US12386299

申请日：2009-04-16

申请人： Sung-Yoon Jung ,  Sung-Soo Hwang ,  Joo-Hyun Lee ,  Jong-Ho Lee ,  Sung-Hwan Kim ,  Jong-Soo Seo ,  Jong-Kyung Kim ,  Jin-Yong Choi

发明人： Sung-Yoon Jung ,  Sung-Soo Hwang ,  Joo-Hyun Lee ,  Jong-Ho Lee ,  Sung-Hwan Kim ,  Jong-Soo Seo ,  Jong-Kyung Kim ,  Jin-Yong Choi

IPC分类号： H04L27/06

CPC分类号： H04B7/0854 ,  H04L25/03038

摘要： Provided are a receiver and a method for detecting a signal in a multiple antenna system. The receiver includes a filter coefficient calculator and a signal detector. After separating a first signal portion and a second signal portion, the filter coefficient calculator calculates an MMSE filter coefficient using a Matrix Inversion Lemma such that an inverse matrix of the first signal portion has a predetermined constant value regardless of a repetition signal detection process. The signal detector detects a relevant transmission signal from an interference-removed reception signal using the MMSE filter coefficient.

摘要翻译： 提供了一种用于检测多天线系统中的信号的接收机和方法。 接收机包括滤波器系数计算器和信号检测器。 在分离第一信号部分和第二信号部分之后，滤波器系数计算器使用矩阵反转引理来计算MMSE滤波器系数，使得第一信号部分的逆矩阵具有预定的常数值，而与重复信号检测处理无关。 信号检测器使用MMSE滤波器系数从去除干扰的接收信号检测相关的发送信号。