公开(公告)号：US07433413B2

公开(公告)日：2008-10-07

申请号：US11020532

申请日：2004-12-23

申请人： Kyung-Whoon Cheun ,  Joo-Yeol Yang ,  Jong-Hyeuk Lee

发明人： Kyung-Whoon Cheun ,  Joo-Yeol Yang ,  Jong-Hyeuk Lee

IPC分类号： H04K1/10

CPC分类号： H04L27/2628 ,  H04L1/0618 ,  H04L27/2605

摘要： An apparatus and method for transmitting data on a plurality of frequency sub-channels for a plurality of successive symbol periods through a plurality of transmit antennas in an OFDM system. In the data transmitting apparatus, an S/P converter converts information symbols received from a data source to an information symbol vector, a coder generates at least one code symbol vector using the information symbol vector in at least one symbol period, an IFFT unit generates at least as many transmission signal vectors as twice the number of code symbol vectors generated in the coder for the one symbol period, a plurality of P/S converters each convert the transmission signal vectors to a transmission signal stream, and a guard interval inserter inserts a guard interval into each of the transmission signal streams received from the P/S converters.

摘要翻译： 一种用于在OFDM系统中通过多个发射天线在多个连续符号周期的多个频率子信道上发送数据的装置和方法。 在数据发送装置中，S / P转换器将从数据源接收的信息符号转换为信息符号向量，编码器在至少一个符号周期内使用信息符号向量生成至少一个码元矢量，IFFT单元生成 至少与在一个符号周期中在编码器中生成的码符号向量数量的两倍的传输信号向量，多个P / S转换器各自将传输信号向量转换为传输信号流，并且保护间隔插入器插入 对从P / S转换器接收的每个发送信号流的保护间隔。

公开(公告)号：US20050141414A1

公开(公告)日：2005-06-30

申请号：US11020532

申请日：2004-12-23

申请人： Kyung-Whoon Cheun ,  Joo-Yeol Yang ,  Jong-Hyeuk Lee

发明人： Kyung-Whoon Cheun ,  Joo-Yeol Yang ,  Jong-Hyeuk Lee

IPC分类号： H04J11/00 ,  H04B7/06 ,  H04L1/06 ,  H04L27/26

CPC分类号： H04L27/2628 ,  H04L1/0618 ,  H04L27/2605

摘要： An apparatus and method for transmitting data on a plurality of frequency sub-channels for a plurality of successive symbol periods through a plurality of transmit antennas in an OFDM system. In the data transmitting apparatus, an S/P converter converts information symbols received from a data source to an information symbol vector, a coder generates at least one code symbol vector using the information symbol vector in at least one symbol period, an IFFT unit generates at least as many transmission signal vectors as twice the number of code symbol vectors generated in the coder for the one symbol period, a plurality of P/S converters each convert the transmission signal vectors to a transmission signal stream, and a guard interval inserter inserts a guard interval into each of the transmission signal streams received from the P/S converters.

摘要翻译： 一种用于在OFDM系统中通过多个发射天线在多个连续符号周期的多个频率子信道上发送数据的装置和方法。 在数据发送装置中，S / P转换器将从数据源接收的信息符号转换为信息符号向量，编码器在至少一个符号周期内使用信息符号向量生成至少一个码元矢量，IFFT单元生成 至少与在一个符号周期中在编码器中生成的码符号向量数量的两倍的传输信号向量，多个P / S转换器各自将传输信号向量转换为传输信号流，并且保护间隔插入器插入 对从P / S转换器接收的每个发送信号流的保护间隔。

公开(公告)号：US20090135963A1

公开(公告)日：2009-05-28

申请号：US12313884

申请日：2008-11-25

申请人： Joo-Yeol Yang ,  Sung-Soo Kim

发明人： Joo-Yeol Yang ,  Sung-Soo Kim

IPC分类号： H04L27/06

CPC分类号： H04L25/0202 ,  H04L1/0036 ,  H04L1/0631 ,  H04L1/0668 ,  H04L25/0222

摘要： An apparatus for adaptively decoding based on a channel variation at a receiver of a communication system supporting an Alamouti mode is provided. The apparatus includes a channel variation estimator for estimating the channel variation; a channel estimator for estimating a channel value of successive channel periods or a channel value of each channel period by comparing the estimated channel variation with a threshold; an Alamouti decoder for decoding a receive signal using an Alamouti method when the estimated channel variation is less than or equal to the threshold; and a Spatial Multiplexing (SM) decoder for decoding the receive signal using an SM method having a square channel matrix when the estimated channel variation is greater than the threshold.

摘要翻译： 提供了一种基于在支持Alamouti模式的通信系统的接收机处的信道变化进行自适应解码的装置。 该装置包括用于估计信道变化的信道变化估计器; 信道估计器，用于通过将估计的信道变化与阈值进行比较来估计连续信道周期的信道值或每个信道周期的信道值; Alamouti解码器，当所估计的信道变化小于或等于阈值时，使用Alamouti方法对接收信号进行解码; 以及空间复用（SM）解码器，用于当所估计的信道变化大于阈值时，使用具有平方信道矩阵的SM方法对接收信号进行解码。

公开(公告)号：US08320505B2

公开(公告)日：2012-11-27

申请号：US12315322

申请日：2008-12-02

申请人： Joo-Yeol Yang ,  Sung-Soo Kim

发明人： Joo-Yeol Yang ,  Sung-Soo Kim

IPC分类号： H04L27/06

CPC分类号： H04L25/03178 ,  H04B7/0854 ,  H04L25/03318 ,  H04L25/061 ,  H04L27/38

摘要： Detection apparatus and method for achieving performance close to a Maximum Likelihood (ML) detection having optimal performance and reducing computational complexity in a Multiple-Input Multiple-Output (MIMO) system including a plurality of transmit antennas and receive antennas are provided. The apparatus includes a hard decision part for confirming an initial hard decision value of a receive symbol vector; a candidate symbol selector for selecting candidate symbols restricted to neighbor values of the initial hard decision value; and an interference canceller for canceling interference in the selected candidate symbols and selecting a final candidate symbol from the received symbols using a result of the interference cancellation.

摘要翻译： 提供了一种用于在包括多个发射天线和接收天线的多输入多输出（MIMO）系统中实现接近具有最佳性能并降低计算复杂度的最大似然（ML）检测性能的检测装置和方法。 该装置包括用于确认接收符号向量的初始硬判决值的硬判决部分; 候选符号选择器，用于选择限于初始硬判决值的邻近值的候选符号; 以及干扰消除器，用于消除所选择的候选符号中的干扰，并使用干扰消除的结果从所接收的符号中选择最终候选符号。

公开(公告)号：US08681901B2

公开(公告)日：2014-03-25

申请号：US13016325

申请日：2011-01-28

申请人： Joo-Yeol Yang ,  Jae-Seok Kim ,  In-Hyoung Kim ,  Yun-Ho Jung ,  Hae-Dong Yeon ,  Kil-Hwan Kim ,  Mi-Suk Cho

发明人： Joo-Yeol Yang ,  Jae-Seok Kim ,  In-Hyoung Kim ,  Yun-Ho Jung ,  Hae-Dong Yeon ,  Kil-Hwan Kim ,  Mi-Suk Cho

IPC分类号： H04L27/06 ,  H04L27/00

CPC分类号： H04L27/06

摘要： A Spatial Multiplexing Multiple Input Multiple Output (SM-MIMO) communication system, which generates Q and R matrices through QR decomposing a channel matrix in an array order corresponding to an order of transmission antennas of a signal transmission device, determines a detection order of transmission symbols included in a transmission symbol vector, QR decomposes a reception signal vector and generates the QR decomposed reception signal vector as a transformed reception signal vector, substitutes all of transmittable candidate symbols for a transmission symbol corresponding to a first detection order among the transmission symbols and sequentially removes interference in the transformed reception signal vector, detects candidate symbols of transmission symbols corresponding to a remaining detection order from the interference-removed transformed reception signal vector, combines the detected candidate symbols, detects candidate symbol vectors, and calculates Log-Likelihood Ratio values of bits included in the transmission symbols by using the detected vectors.

摘要翻译： 空间多路复用多输入多输出（SM-MIMO）通信系统通过QR分解与信号传输装置的发送天线的顺序相对应的阵列顺序的信道矩阵来生成Q和R矩阵，确定传输的检测顺序 包含在发送符号向量中的符号，QR分解接收信号矢量并生成QR分解接收信号矢量作为变换的接收信号矢量，将发送候选符号的全部替换为与发送符号中的第一检测顺序对应的发送符号， 依次去除变换的接收信号矢量中的干扰，从干扰去除的变换的接收信号矢量中检测与剩余检测顺序对应的发送符号的候选符号，合并检测到的候选符号，检测候选符号向量，并计算对数似然比va 通过使用检测到的矢量，包含在发送符号中的比特数。

公开(公告)号：US20110188615A1

公开(公告)日：2011-08-04

申请号：US13016325

申请日：2011-01-28

申请人： Joo-Yeol Yang ,  Jae-Seok Kim ,  In-Hyoung Kim ,  Yun-Ho Jung ,  Hae-Dong Yeon ,  Kil-Hwan Kim ,  Mi-Suk Cho

发明人： Joo-Yeol Yang ,  Jae-Seok Kim ,  In-Hyoung Kim ,  Yun-Ho Jung ,  Hae-Dong Yeon ,  Kil-Hwan Kim ,  Mi-Suk Cho

IPC分类号： H04L27/06

CPC分类号： H04L27/06

摘要： A Spatial Multiplexing Multiple Input Multiple Output (SM-MIMO) communication system, which generates a Q matrix and an R matrix through QR decomposing a channel matrix in an array order corresponding to an order of transmission antennas of a signal transmission device, determines a detection order of transmission symbols included in a transmission symbol vector, QR decomposes a reception signal vector and generates the QR decomposed reception signal vector as a transformed reception signal vector, substitutes all of transmittable candidate symbols for a transmission symbol corresponding to a first detection order among the transmission symbols and sequentially removes interference in the transformed reception signal vector, detects candidate symbols of transmission symbols corresponding to a remaining detection order from the interference-removed transformed reception signal vector, combines the detected candidate symbols, detects candidate symbol vectors, and calculates Log-Likelihood Ratio values of bits included in the transmission symbols by using the detected vectors.

摘要翻译： 空间多路复用多输入多输出（SM-MIMO）通信系统通过以与信号传输设备的发送天线的顺序对应的阵列顺序分解信道矩阵的QR来生成Q矩阵和R矩阵来确定检测 包含在发送符号矢量中的发送符号的顺序，QR分解接收信号矢量，并生成QR分解接收信号矢量作为变换后的接收信号矢量，将所有可发送候选符号代入与第一检测顺序对应的发送符号 传输符号并且顺序地去除经变换的接收信号矢量中的干扰，从干扰去除的变换的接收信号向量中检测与剩余检测顺序对应的传输符号的候选符号，组合检测到的候选符号，检测候选符号向量， Likelihoo d通过使用所检测的向量，包括在发送符号中的比特比率值。

公开(公告)号：US08699605B2

公开(公告)日：2014-04-15

申请号：US12856005

申请日：2010-08-13

申请人： Joo-Yeol Yang

发明人： Joo-Yeol Yang

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04B7/0854

摘要： A receiving method and apparatus in a Multiple-Input Multiple-Output (MIMO) communication system are provided. The method includes receiving reception signals through a plurality of reception antennas, grouping symbols corresponding to the reception signals, respectively, into a preset number of groups, and rearranging symbols of the respective groups, transforming the reception signals by applying QR decomposition to the reception signals, sequentially canceling interference due to each of total possible candidate symbols for a first symbol based on an order of the rearranged symbols in the transformed reception signals, determining a portion of the total possible candidate symbols to be a candidate symbol set for each remaining symbol, except for the first symbol, using the interference-canceled reception signal, and determining log-likelihood ratio values of the first symbol, which are to be used upon decoding the received signals, using candidate symbols for the first symbol and each remaining symbol.

摘要翻译： 提供了一种多输入多输出（MIMO）通信系统中的接收方法和装置。 该方法包括：通过多个接收天线接收接收信号，分别对应于接收信号的符号分组成预定数量的组，并重新排列各组的符号，通过对接收信号应用QR分解来变换接收信号 根据经变换的接收信号中的重新排列的符号的顺序，顺序地消除由于第一符号的总可能候选符号中的每一个引起的干扰，将总可能候选符号的一部分确定为每个剩余符号的候选符号集， 除了第一符号，使用干扰消除的接收信号，并且使用用于第一符号和每个剩余符号的候选符号来确定在解码接收信号时要使用的第一符号的对数似然比值。

公开(公告)号：US08379781B2

公开(公告)日：2013-02-19

申请号：US12313884

申请日：2008-11-25

申请人： Joo-Yeol Yang ,  Sung-Soo Kim

发明人： Joo-Yeol Yang ,  Sung-Soo Kim

IPC分类号： H04B14/06

CPC分类号： H04L25/0202 ,  H04L1/0036 ,  H04L1/0631 ,  H04L1/0668 ,  H04L25/0222

摘要： An apparatus for adaptively decoding based on a channel variation at a receiver of a communication system supporting an Alamouti mode is provided. The apparatus includes a channel variation estimator for estimating the channel variation; a channel estimator for estimating a channel value of successive channel periods or a channel value of each channel period by comparing the estimated channel variation with a threshold; an Alamouti decoder for decoding a receive signal using an Alamouti method when the estimated channel variation is less than or equal to the threshold; and a Spatial Multiplexing (SM) decoder for decoding the receive signal using an SM method having a square channel matrix when the estimated channel variation is greater than the threshold.

公开(公告)号：US20090141835A1

公开(公告)日：2009-06-04

申请号：US12315322

申请日：2008-12-02

申请人： Joo-Yeol Yang ,  Sung-Soo Kim

发明人： Joo-Yeol Yang ,  Sung-Soo Kim

IPC分类号： H04B1/10 ,  H04L27/06

CPC分类号： H04L25/03178 ,  H04B7/0854 ,  H04L25/03318 ,  H04L25/061 ,  H04L27/38

摘要： Detection apparatus and method for achieving performance close to a Maximum Likelihood (ML) detection having optimal performance and reducing computational complexity in a Multiple-Input Multiple-Output (MIMO) system including a plurality of transmit antennas and receive antennas are provided. The apparatus includes a hard decision part for confirming an initial hard decision value of a receive symbol vector; a candidate symbol selector for selecting candidate symbols restricted to neighbor values of the initial hard decision value; and an interference canceller for canceling interference in the selected candidate symbols and selecting a final candidate symbol from the received symbols using a result of the interference cancellation.

摘要翻译： 提供了一种用于在包括多个发射天线和接收天线的多输入多输出（MIMO）系统中实现接近具有最佳性能并降低计算复杂度的最大似然（ML）检测性能的检测装置和方法。 该装置包括用于确认接收符号向量的初始硬判决值的硬判决部分; 候选符号选择器，用于选择限于初始硬判决值的邻近值的候选符号; 以及干扰消除器，用于消除所选择的候选符号中的干扰，并使用干扰消除的结果从所接收的符号中选择最终候选符号。