公开(公告)号：US20110243204A1

公开(公告)日：2011-10-06

申请号：US13139257

申请日：2009-11-24

申请人： Choongil Yeh ,  Young Seog Song ,  Min Sik Seo ,  Dong Seung Kwon ,  Joon-doo Kim ,  Chungyong Lee ,  Jiwon Kang

发明人： Choongil Yeh ,  Young Seog Song ,  Min Sik Seo ,  Dong Seung Kwon ,  Joon-doo Kim ,  Chungyong Lee ,  Jiwon Kang

IPC分类号： H04L5/16

CPC分类号： H04B7/0632 ,  H04B7/0452 ,  H04B7/0465

摘要： A method for a transmitting terminal in a multi-user multi-antenna environment to perform precoding includes: receiving feedback information from a plurality of receiving terminals; estimating a channel between the transmitting terminal and the plurality of receiving terminals by using the feedback information; and generating a plurality of transmission symbols by applying a first nonlinear precoding method and a second nonlinear precoding method to a plurality of symbols and the estimated channel to be transmitted to the plurality of receiving terminals. The first nonlinear precoding method is used to eliminate interference between subchannels of the same receiving terminal, and the second nonlinear precoding method is used to eliminate interference between the receiving terminals.

摘要翻译： 一种用于多用户多天线环境中的发送终端执行预编码的方法包括：从多个接收终端接收反馈信息; 通过使用所述反馈信息来估计所述发送终端与所述多个接收终端之间的信道; 以及通过对多个符号应用第一非线性预编码方法和第二非线性预编码方法来生成多个传输符号，以及将估计的信道发送到多个接收终端。 第一种非线性预编码方法用于消除同一接收终端的子信道之间的干扰，第二非线性预编码方法用于消除接收终端之间的干扰。

公开(公告)号：US08625688B2

公开(公告)日：2014-01-07

申请号：US13139257

申请日：2009-11-24

申请人： Choongil Yeh ,  Young Seog Song ,  Min Sik Seo ,  Dong Seung Kwon ,  Joon-doo Kim ,  Chungyong Lee ,  Jiwon Kang

发明人： Choongil Yeh ,  Young Seog Song ,  Min Sik Seo ,  Dong Seung Kwon ,  Joon-doo Kim ,  Chungyong Lee ,  Jiwon Kang

IPC分类号： H04K1/10 ,  H04B7/02

CPC分类号： H04B7/0632 ,  H04B7/0452 ,  H04B7/0465

摘要： A method for a transmitting terminal in a multi-user multi-antenna environment to perform precoding includes: receiving feedback information from a plurality of receiving terminals; estimating a channel between the transmitting terminal and the plurality of receiving terminals by using the feedback information; and generating a plurality of transmission symbols by applying a first nonlinear precoding method and a second nonlinear precoding method to a plurality of symbols and the estimated channel to be transmitted to the plurality of receiving terminals. The first nonlinear precoding method is used to eliminate interference between subchannels of the same receiving terminal, and the second nonlinear precoding method is used to eliminate interference between the receiving terminals.

摘要翻译： 一种用于多用户多天线环境中的发送终端执行预编码的方法包括：从多个接收终端接收反馈信息; 通过使用所述反馈信息来估计所述发送终端与所述多个接收终端之间的信道; 以及通过对多个符号应用第一非线性预编码方法和第二非线性预编码方法来生成多个传输符号，以及将估计的信道发送到多个接收终端。 第一种非线性预编码方法用于消除同一接收终端的子信道之间的干扰，第二非线性预编码方法用于消除接收终端之间的干扰。

公开(公告)号：US08654876B2

公开(公告)日：2014-02-18

申请号：US13132915

申请日：2009-11-24

申请人： Young Seog Song ,  Choongil Yeh ,  Dong Seung Kwon ,  Min Sik Seo ,  Joondoo Kim ,  Jiwon Kang ,  Chungyong Lee

发明人： Young Seog Song ,  Choongil Yeh ,  Dong Seung Kwon ,  Min Sik Seo ,  Joondoo Kim ,  Jiwon Kang ,  Chungyong Lee

IPC分类号： H04B7/02

CPC分类号： H04B7/0417 ,  H04B7/0626 ,  H04B7/0632 ,  H04W52/42

摘要： Provided are a transmitting apparatus and a transmitting method in a multiple input multiple output system. A power allocation controller includes a block Tomlinson-Harashima precoder (BTHP) that precodes and outputs data to be transmitted to each user in a nonlinear scheme. The BTHP removes and outputs inference signals from data for each user based on the channel information that is fed back from the users. The data for each user output from the BTHP are allocated with power by the power allocation controller. The power allocation controller calculates power allocation parameters so that receiving minimum distances at receiving ends for each user that receive data through the MIMO antennas are the same, and allocates the calculated parameters to data for each user.

摘要翻译： 提供了一种多输入多输出系统中的发送装置和发送方法。 功率分配控制器包括以非线性方案预编码和输出要发送给每个用户的数据的块Tomlinson-Harashima预编码器（BTHP）。 基于从用户反馈的信道信息，BTHP从每个用户的数据中移除并输出推理信号。 来自BTHP的每个用户输出的数据由功率分配控制器分配电力。 功率分配控制器计算功率分配参数，使得通过MIMO天线接收数据的每个用户的接收端的接收最小距离相同，并且将计算的参数分配给每个用户的数据。

公开(公告)号：US20110243273A1

公开(公告)日：2011-10-06

申请号：US13132915

申请日：2009-11-24

申请人： Young Seog Song ,  Choongil Yeh ,  Dong Seung Kwon ,  Min Sik Seo ,  Joondoo Kim ,  Jiwon Kang ,  Chungyong Lee

发明人： Young Seog Song ,  Choongil Yeh ,  Dong Seung Kwon ,  Min Sik Seo ,  Joondoo Kim ,  Jiwon Kang ,  Chungyong Lee

IPC分类号： H04L27/00

CPC分类号： H04B7/0417 ,  H04B7/0626 ,  H04B7/0632 ,  H04W52/42

摘要： Provided are a transmitting apparatus and a transmitting method in a multiple input multiple output system. A power allocation controller includes a block Tomlinson-Harashima precoder (BTHP) that precodes and outputs data to be transmitted to each user in a nonlinear scheme. The BTHP removes and outputs inference signals from data for each user based on the channel information that is fed back from the users. The data for each user output from the BTHP are allocated with power by the power allocation controller. The power allocation controller calculates power allocation parameters so that receiving minimum distances at receiving ends for each user that receive data through the MIMO antennas are the same, and allocates the calculated parameters to data for each user.

摘要翻译： 提供了一种多输入多输出系统中的发送装置和发送方法。 功率分配控制器包括以非线性方案预编码和输出要发送给每个用户的数据的块Tomlinson-Harashima预编码器（BTHP）。 基于从用户反馈的信道信息，BTHP从每个用户的数据中移除并输出推理信号。 来自BTHP的每个用户输出的数据由功率分配控制器分配电力。 功率分配控制器计算功率分配参数，使得通过MIMO天线接收数据的每个用户的接收端的接收最小距离相同，并且将计算的参数分配给每个用户的数据。

公开(公告)号：US20080081669A1

公开(公告)日：2008-04-03

申请号：US11743147

申请日：2007-05-02

申请人： Dong-Seung Kwon ,  Young-Seog Song ,  In-Kyeong Choi ,  Chungyong Lee ,  Myeongcheol Shin ,  Myoung-Seok Kim ,  Seung-Joon Lee

发明人： Dong-Seung Kwon ,  Young-Seog Song ,  In-Kyeong Choi ,  Chungyong Lee ,  Myeongcheol Shin ,  Myoung-Seok Kim ,  Seung-Joon Lee

IPC分类号： H04B1/38

CPC分类号： H04B7/0658 ,  H04B7/0634 ,  H04B7/0639

摘要： In a method for optimizing a codebook including a quantized channel between a base station transmitter and a portable terminal: a) select the codebook to be optimized; b) a steepest descent algorithm is applied to respective codewords of the codebook selected in a), wherein the codewords are transformed so that a correlation between the codewords is minimized, and a function indicating the correlation between the codewords is differentiated and is multiplied by a predetermined step size and is used for a parameter for generating a new codeword in the steepest descent algorithm; c) it is determined whether the codebook including the codewords transformed in b) is optimized; and d) the codebook is stored when it is determined in c) that the codebook is optimized.

摘要翻译： 一种用于优化包括基站发射机和便携式终端之间的量化信道的码本的方法：a）选择要优化的码本; b）将最陡下降算法应用于在a）中选择的码本的相应码字，其中对码字进行变换，使得码字之间的相关性最小化，并且指示码字之间的相关性的函数被区分，并乘以 用于在最速下降算法中生成新码字的参数; c）确定包括在b）中变换的码字的码本是否被优化; 以及d）当在c）中确定码本被优化时，存储码本。

公开(公告)号：US20090252240A1

公开(公告)日：2009-10-08

申请号：US12096778

申请日：2006-12-04

申请人： Dong-Seung Kwon ,  Young-Seog Song ,  Seung-Joon Lee ,  Jong-Ee Oh ,  Chungyong Lee ,  Myeong-Cheol Shin

发明人： Dong-Seung Kwon ,  Young-Seog Song ,  Seung-Joon Lee ,  Jong-Ee Oh ,  Chungyong Lee ,  Myeong-Cheol Shin

IPC分类号： H04L27/28

CPC分类号： H04B7/0639 ,  H04L1/0003 ,  H04L1/0006

摘要： Respective codewords of quantization codebooks corresponding to a number of data streams are selected based on channel information estimated by a received training symbol. A stream mode is selected among stream modes to determine a modulation method applied to each data stream. The data stream is detected by using the codeword corresponding to the quantization codebook of the data stream corresponding to the selected stream mode as a precode matrix, and the detected data stream is modulated. In this case, a receiving apparatus performs a feedback operation so that indexes of the selected stream mode and the codeword used as the precode matrix may be transmitted to the transmitting apparatus. The transmitting apparatus selects the number of transmitted data streams and the modulation method based on the transmitted index of feedback streams by the feedback operation.

摘要翻译： 基于由接收到的训练符号估计的信道信息来选择与多个数据流对应的量化码本的各个码字。 在流模式中选择流模式以确定应用于每个数据流的调制方法。 通过使用与对应于所选流模式的数据流的量化码本对应的码字作为预编码矩阵来检测数据流，并且检测的数据流被调制。 在这种情况下，接收装置执行反馈操作，使得所选流模式的索引和用作预编码矩阵的码字可以被发送到发送装置。 发送装置通过反馈操作基于所发送的反馈流索引来选择发送数据流的数量和调制方法。

公开(公告)号：US08121212B2

公开(公告)日：2012-02-21

申请号：US12096778

申请日：2006-12-04

申请人： Dong-Seung Kwon ,  Young-Seog Song ,  Seung-Joon Lee ,  Jong-Ee Oh ,  Chungyong Lee ,  Myeong-Cheol Shin

发明人： Dong-Seung Kwon ,  Young-Seog Song ,  Seung-Joon Lee ,  Jong-Ee Oh ,  Chungyong Lee ,  Myeong-Cheol Shin

IPC分类号： H04B7/02

CPC分类号： H04B7/0639 ,  H04L1/0003 ,  H04L1/0006

摘要： Respective codewords of quantization codebooks corresponding to a number of data streams are selected based on channel information estimated by a received training symbol. A stream mode is selected among stream modes to determine a modulation method applied to each data stream. The data stream is detected by using the codeword corresponding to the quantization codebook of the data stream corresponding to the selected stream mode as a precode matrix, and the detected data stream is modulated. In this case, a receiving apparatus performs a feedback operation so that indexes of the selected stream mode and the codeword used as the precode matrix may be transmitted to the transmitting apparatus. The transmitting apparatus selects the number of transmitted data streams and the modulation method based on the transmitted index of feedback streams by the feedback operation.

摘要翻译： 基于由接收到的训练符号估计的信道信息来选择与多个数据流对应的量化码本的各个码字。 在流模式中选择流模式以确定应用于每个数据流的调制方法。 通过使用与对应于所选流模式的数据流的量化码本对应的码字作为预编码矩阵来检测数据流，并且检测的数据流被调制。 在这种情况下，接收装置执行反馈操作，使得所选流模式的索引和用作预编码矩阵的码字可以被发送到发送装置。 发送装置通过反馈操作基于所发送的反馈流索引来选择发送数据流的数量和调制方法。

公开(公告)号：US08621319B2

公开(公告)日：2013-12-31

申请号：US12904665

申请日：2010-10-14

申请人： Young Jin Moon ,  Dong Seung Kwon ,  Jee Hwan Noh ,  Chungyong Lee

发明人： Young Jin Moon ,  Dong Seung Kwon ,  Jee Hwan Noh ,  Chungyong Lee

IPC分类号： H03M13/00

CPC分类号： H04L1/0048 ,  H04L1/005 ,  H04L1/0061 ,  H04L1/1812

摘要： A multiple input multiple output (MIMO) iterative receiver detects a soft log likelihood ratio value from a signal outputted from a transmitter and decodes the detected soft log likelihood ratio value in order to extract a hard value and a soft value from the detected soft log likelihood ratio value. After whether or not a CRC of the hard value is acknowledged is determined, a CRC of a data burst is determined or iteration of signal demodulation of the MIMO iterative receiver is determined by feeding back the soft value or a CRC of data is performed assembling signals of the burst unit in accordance with the determination result.

摘要翻译： 多输入多输出（MIMO）迭代接收机根据从发射机输出的信号检测软对数似然比值，并解码所检测的软对数似然比值，以便从检测到的软对数似然度中提取硬值和软值 比值。 在确定硬值的CRC是否被确认之后，确定数据突发的CRC或通过反馈软值或执行数据的CRC来组合信号来确定MIMO迭代接收机的信号解调的迭代 的突发单元。

公开(公告)号：US20110145671A1

公开(公告)日：2011-06-16

申请号：US12904665

申请日：2010-10-14

申请人： Young Jin MOON ,  Dong Seung Kwon ,  Jee Hwan Noh ,  Chungyong Lee

发明人： Young Jin MOON ,  Dong Seung Kwon ,  Jee Hwan Noh ,  Chungyong Lee

IPC分类号： H03M13/09 ,  H04L1/18 ,  G06F11/10 ,  G06F11/14

CPC分类号： H04L1/0048 ,  H04L1/005 ,  H04L1/0061 ,  H04L1/1812

摘要： A multiple input multiple output (MIMO) iterative receiver detects a soft log likelihood ratio value from a signal outputted from a transmitter and decodes the detected soft log likelihood ratio value in order to extract a hard value and a soft value from the detected soft log likelihood ratio value. After whether or not a CRC of the hard value is acknowledged is determined, a CRC of a data burst is determined or iteration of signal demodulation of the MIMO iterative receiver is determined by feeding back the soft value or a CRC of data is performed assembling signals of the burst unit in accordance with the determination result.

摘要翻译： 多输入多输出（MIMO）迭代接收机根据从发射机输出的信号检测软对数似然比值，并解码所检测的软对数似然比值，以便从检测到的软对数似然度中提取硬值和软值 比值。 在确定硬值的CRC是否被确认之后，确定数据突发的CRC或通过反馈软值或执行数据的CRC来组合信号来确定MIMO迭代接收机的信号解调的迭代 的突发单元。

公开(公告)号：US20090252246A1

公开(公告)日：2009-10-08

申请号：US12384156

申请日：2009-04-01

申请人： Jong-Ho Lee ,  Joo-Hyun Lee ,  Sung-Hwan Kim ,  Jong-Hyeuk Lee ,  Sung-Yoon Jung ,  Chungyong Lee ,  Jaesang Ham ,  Myoung-Seok Kim

发明人： Jong-Ho Lee ,  Joo-Hyun Lee ,  Sung-Hwan Kim ,  Jong-Hyeuk Lee ,  Sung-Yoon Jung ,  Chungyong Lee ,  Jaesang Ham ,  Myoung-Seok Kim

IPC分类号： H04L5/12

CPC分类号： H04L27/2614 ,  H04L5/0007 ,  H04L25/0202 ,  H04L25/03178 ,  H04L25/0321 ,  H04L25/03229

摘要： A receiving apparatus and method of a Maximum Likelihood (ML) scheme in a Single-Carrier (SC) system are provided. The apparatus includes at least two antennas, at least two Orthogonal Frequency Division Multiplexing (OFDM) demodulators, at least two subcarrier mappers, at least two OFDM modulators, and a detector. The antennas receive signals. The OFDM demodulators convert the signals into frequency domain signals. The subcarrier mappers confirm signals mapped to frequency domain subcarriers. The OFDM modulators convert the signals into time domain signals. The detector constructs at least one set for candidate transmission symbols and detects receive signals through ML detection using the set.

摘要翻译： 提供了在单载波（SC）系统中的最大似然（ML）方案的接收装置和方法。 该装置包括至少两个天线，至少两个正交频分复用（OFDM）解调器，至少两个子载波映射器，至少两个OFDM调制器和检测器。 天线接收信号。 OFDM解调器将信号转换成频域信号。 子载波映射器确认映射到频域子载波的信号。 OFDM调制器将信号转换为时域信号。 检测器为候选传输符号构建至少一个集合，并通过使用该集合的ML检测来检测接收信号。