公开(公告)号：US20080018535A1

公开(公告)日：2008-01-24

申请号：US11776631

申请日：2007-07-12

申请人： In-Soo Hwang ,  Cheol-Woo You ,  Yung-Soo Kim ,  Dong-Ho Kim ,  Vahid Tarokh

发明人： In-Soo Hwang ,  Cheol-Woo You ,  Yung-Soo Kim ,  Dong-Ho Kim ,  Vahid Tarokh

IPC分类号： H01Q21/00

CPC分类号： H01Q21/00 ,  H01Q1/52

摘要： An apparatus and method for removing interference in a transmitting end of a multi-antenna system is provided. The method includes decomposing a channel matrix comprising channel coefficients for a plurality of terminals, calculating a value proportional to an interference signal for each of antennas, and calculating a sum of a transmission signal and the calculated value for each terminal and multiplying the calculated sum by the decomposed channel matrix. Accordingly, channel capacity can be improved by optimizing a data transfer rate and transmission power for each terminal.

摘要翻译： 提供一种用于消除多天线系统的发送端的干扰的装置和方法。 该方法包括分解包括多个终端的信道系数的信道矩阵，计算与每个天线的干扰信号成比例的值，并且计算每个终端的发送信号和计算值的和，并将计算出的和乘以 分解的信道矩阵。 因此，通过优化每个终端的数据传输速率和传输功率可以提高信道容量。

公开(公告)号：US07986750B2

公开(公告)日：2011-07-26

申请号：US11776631

申请日：2007-07-12

申请人： In-Soo Hwang ,  Cheol-Woo You ,  Yung-Soo Kim ,  Dong-Ho Kim ,  Vahid Tarokh

发明人： In-Soo Hwang ,  Cheol-Woo You ,  Yung-Soo Kim ,  Dong-Ho Kim ,  Vahid Tarokh

IPC分类号： H03K9/00

CPC分类号： H01Q21/00 ,  H01Q1/52

摘要： An apparatus and method for removing interference in a transmitting end of a multi-antenna system is provided. The method includes decomposing a channel matrix including channel coefficients for a plurality of terminals, calculating a value proportional to an interference signal for each of antennas, and calculating a sum of a transmission signal and the calculated value for each terminal and multiplying the calculated sum by the decomposed channel matrix. Accordingly, channel capacity can be improved by optimizing a data transfer rate and transmission power for each terminal.

摘要翻译： 提供一种用于消除多天线系统的发送端的干扰的装置和方法。 该方法包括分解包括多个终端的信道系数的信道矩阵，计算与每个天线的干扰信号成比例的值，并且计算每个终端的传输信号和计算值的和，并将计算出的和乘以 分解的信道矩阵。 因此，通过优化每个终端的数据传输速率和传输功率可以提高信道容量。

公开(公告)号：US20080101327A1

公开(公告)日：2008-05-01

申请号：US11982070

申请日：2007-11-01

申请人： Yung-Soo Kim ,  Cheol-Woo You ,  Young-Ho Jung ,  In-Soo Hwang ,  Eun-Mo Kang

发明人： Yung-Soo Kim ,  Cheol-Woo You ,  Young-Ho Jung ,  In-Soo Hwang ,  Eun-Mo Kang

IPC分类号： H04J3/00

CPC分类号： H04L1/0625 ,  H04B7/0417 ,  H04B7/0669 ,  H04B7/0673 ,  H04B7/0689 ,  H04B7/0697 ,  H04L1/0009

摘要： Provided is a transmitter apparatus in a MIMO wireless communication system. The transmitter apparatus includes a controller and a space-time encoder. The controller generates a space-time encoding code according to a multiplexing order, the number of transmitter antennas, and the number of receiver antennas. The space-time encoder space-time-encodes a TX signal using the generated space-time-encoding code.

摘要翻译： 提供了一种MIMO无线通信系统中的发射机装置。 发射机装置包括控制器和时空编码器。 控制器根据复用次序，发射机天线的数量和接收机天线的数量产生空时编码码。 空时编码器使用生成的空时编码代码对TX信号进行空时编码。

公开(公告)号：US20070133707A1

公开(公告)日：2007-06-14

申请号：US11603651

申请日：2006-11-22

申请人： In-Soo Hwang ,  Cheol-Woo You ,  Seung-Hoon Nam ,  Yung-Soo Kim ,  Tarokh Vahid

发明人： In-Soo Hwang ,  Cheol-Woo You ,  Seung-Hoon Nam ,  Yung-Soo Kim ,  Tarokh Vahid

IPC分类号： H04L1/02

CPC分类号： H04B7/0417 ,  H04B7/0602 ,  H04B7/061 ,  H04B7/0639 ,  H04B7/0802

摘要： Disclosed are an apparatus and a method for determining a transmit/receive antenna in a Multiple Input Multiple Output (MIMO) communication system. At least one sub-channel matrix including transmit antenna information and receive antenna information is generated. From the at least one sub-channel matrix, a sub-channel matrix having a maximum value Frobenius norm is determined. The transmit and receive antenna information are then extracted from the determined sub-channel matrix.

摘要翻译： 公开了一种用于在多输入多输出（MIMO）通信系统中确定发射/接收天线的装置和方法。 生成包括发送天线信息和接收天线信息的至少一个子信道矩阵。 从至少一个子信道矩阵确定具有最大值Frobenius范数的子信道矩阵。 然后从确定的子信道矩阵中提取发送和接收天线信息。

公开(公告)号：US20090135939A1

公开(公告)日：2009-05-28

申请号：US11856569

申请日：2007-09-17

申请人： In-Soo Hwang ,  Cheol-Woo You ,  Yung-Soo Kim ,  Young-Ho Jung

发明人： In-Soo Hwang ,  Cheol-Woo You ,  Yung-Soo Kim ,  Young-Ho Jung

IPC分类号： H04B7/02

CPC分类号： H04B7/0669 ,  H04L1/0006 ,  H04L1/0618 ,  H04L1/0656 ,  H04L1/0662

摘要： Disclosed is a space-time coding apparatus and method to flexibly adjust diversity/multiplexing orders in a multiple-antenna system. The transmitting apparatus for the multiple-antenna system includes a space-time code controller, an encoder, a demultiplexer, and a space-time encoder. The space-time code controller generates space-time codes by determining bases according to a multiplexing order required by a receiver. The encoder modulates and encodes data destined for the receiver in accordance with a predetermined modulation level. The demultiplexer demultiplexes data received from the encoder in order to transmit the data through at least one antenna. The space-time encoder space-time-codes the demultiplexed data using the space-time codes.

摘要翻译： 公开了一种在多天线系统中灵活地调整分集/复用顺序的时空编码装置和方法。 用于多天线系统的发送装置包括时空码控制器，编码器，解复用器和时空编码器。 空时编码控制器通过根据接收机所要求的多路复用顺序确定基准来产生时空码。 编码器根据预定的调制电平对目的地为接收机的数据进行调制和编码。 解复用器对从编码器接收的数据进行解复用，以通过至少一个天线发送数据。 时空编码器使用空时码对多路复用数据进行空时编码。

公开(公告)号：US20070133480A1

公开(公告)日：2007-06-14

申请号：US11603652

申请日：2006-11-22

申请人： Seung-Hoon Nam ,  Cheol-Woo You ,  In-Soo Hwang ,  Yung-Soo Kim ,  Tarokh Vahid

发明人： Seung-Hoon Nam ,  Cheol-Woo You ,  In-Soo Hwang ,  Yung-Soo Kim ,  Tarokh Vahid

IPC分类号： H04B7/216

CPC分类号： H04L1/0021 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025

摘要： A system and method are provided for controlling a data rate in a communication system. A transmitter sets threshold values for classifying Modulation and Coding Scheme (MCS) levels. When receiving information about an MCS level desired to be used in the receiver, the transmitter sets an MCS level to be actually used in the receiver and transmits information about the set MCS level to the receiver. When detecting that the information is to be transmitted to the transmitter, the receiver computes instantaneous link capacity using a channel estimation result, sets an MCS level mapped to the instantaneous link capacity, and transmits information about the set MCS level to the transmitter. The receiver receives the information about the MCS level to be actually used from the transmitter.

摘要翻译： 提供了一种用于控制通信系统中的数据速率的系统和方法。 发射机设置用于分类调制和编码方案（MCS）级别的阈值。 当接收到有关希望在接收机中使用的MCS级别的信息时，发射机设置在接收机中实际使用的MCS级别，并将关于所设置的MCS级别的信息发送给接收机。 当检测到要将信息发送到发射机时，接收机使用信道估计结果计算瞬时链路容量，设置映射到瞬时链路容量的MCS级别，并将关于所设置的MCS级别的信息发送到发射机。 接收机从发射机接收关于实际使用的MCS级别的信息。

公开(公告)号：US08036297B2

公开(公告)日：2011-10-11

申请号：US11856569

申请日：2007-09-17

申请人： In-Soo Hwang ,  Cheol-Woo You ,  Yung-Soo Kim ,  Young-Ho Jung

发明人： In-Soo Hwang ,  Cheol-Woo You ,  Yung-Soo Kim ,  Young-Ho Jung

IPC分类号： H04B7/02

CPC分类号： H04B7/0669 ,  H04L1/0006 ,  H04L1/0618 ,  H04L1/0656 ,  H04L1/0662

摘要： Disclosed is a space-time coding apparatus and method to flexibly adjust diversity/multiplexing orders in a multiple-antenna system. The transmitting apparatus for the multiple-antenna system includes a space-time code controller, an encoder, a demultiplexer, and a space-time encoder. The space-time code controller generates space-time codes by determining bases according to a multiplexing order required by a receiver. The encoder modulates and encodes data destined for the receiver in accordance with a predetermined modulation level. The demultiplexer demultiplexes data received from the encoder in order to transmit the data through at least one antenna. The space-time encoder space-time-codes the demultiplexed data using the space-time codes.

摘要翻译： 公开了一种在多天线系统中灵活地调整分集/复用顺序的时空编码装置和方法。 用于多天线系统的发送装置包括时空码控制器，编码器，解复用器和时空编码器。 空时编码控制器通过根据接收机所要求的多路复用顺序确定基准来产生时空码。 编码器根据预定的调制电平对目的地为接收机的数据进行调制和编码。 解复用器对从编码器接收的数据进行解复用，以通过至少一个天线发送数据。 时空编码器使用空时码对多路复用数据进行空时编码。

公开(公告)号：US07808954B2

公开(公告)日：2010-10-05

申请号：US11603652

申请日：2006-11-22

申请人： Seung-Hoon Nam ,  Cheol-Woo You ,  In-Soo Hwang ,  Yung-Soo Kim ,  Tarokh Vahid

发明人： Seung-Hoon Nam ,  Cheol-Woo You ,  In-Soo Hwang ,  Yung-Soo Kim ,  Tarokh Vahid

IPC分类号： H04B7/216

CPC分类号： H04L1/0021 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025

摘要： A system and method are provided for controlling a data rate in a communication system. A transmitter sets threshold values for classifying Modulation and Coding Scheme (MCS) levels. When receiving information about an MCS level desired to be used in the receiver, the transmitter sets an MCS level to be actually used in the receiver and transmits information about the set MCS level to the receiver. When detecting that the information is to be transmitted to the transmitter, the receiver computes instantaneous link capacity using a channel estimation result, sets an MCS level mapped to the instantaneous link capacity, and transmits information about the set MCS level to the transmitter. The receiver receives the information about the MCS level to be actually used from the transmitter.

摘要翻译： 提供了一种用于控制通信系统中的数据速率的系统和方法。 发射机设置用于分类调制和编码方案（MCS）级别的阈值。 当接收到有关希望在接收机中使用的MCS级别的信息时，发射机设置在接收机中实际使用的MCS级别，并将关于所设置的MCS级别的信息发送给接收机。 当检测到要将信息发送到发射机时，接收机使用信道估计结果计算瞬时链路容量，设置映射到瞬时链路容量的MCS级别，并将关于所设置的MCS级别的信息发送到发射机。 接收机从发射机接收关于实际使用的MCS级别的信息。

公开(公告)号：US20070230628A1

公开(公告)日：2007-10-04

申请号：US11716343

申请日：2007-03-09

申请人： Cheol-Woo You ,  Dong-Ho Kim ,  Yung-Soo Kim ,  Seung-Hoon Nam ,  Hyun-Cheol Park ,  Nam-Shik Kim

发明人： Cheol-Woo You ,  Dong-Ho Kim ,  Yung-Soo Kim ,  Seung-Hoon Nam ,  Hyun-Cheol Park ,  Nam-Shik Kim

IPC分类号： H04L27/06 ,  H04L1/02

CPC分类号： H04L1/06 ,  H04L25/03006 ,  H04L2025/03426

摘要： An apparatus is provided for detecting a signal in a communication system using a Multiple Input Multiple Output (MIMO) scheme. The signal detection apparatus includes a detector for generating second matrixes by extending a first matrix composed of channel response vectors, generating specific matrixes by decomposing the second matrixes, generating a lattice point of vectors constituting the second matrixes, estimating a signal using the generated specific matrixes and lattice point, and detecting the estimated signal as a received signal if the estimated signal has a value within a predetermined allowable range.

摘要翻译： 提供一种用于在使用多输入多输出（MIMO）方案的通信系统中检测信号的装置。 信号检测装置包括：检测器，用于通过扩展由信道响应向量组成的第一矩阵来产生第二矩阵，通过分解第二矩阵产生特定矩阵，产生构成第二矩阵的向量的格点，使用所生成的特定矩阵估计信号 并且如果所估计的信号具有在预定允许范围内的值，则将所估计的信号作为接收信号进行检测。

公开(公告)号：US20070202889A1

公开(公告)日：2007-08-30

申请号：US11703520

申请日：2007-02-07

申请人： Dong-Ho Kim ,  Cheol-Woo You ,  Yung-Soo Kim ,  Ye-Hoon Lee ,  Keum-Chan Whang ,  Kwang-Soon Kim ,  Hyo-Yol Park

发明人： Dong-Ho Kim ,  Cheol-Woo You ,  Yung-Soo Kim ,  Ye-Hoon Lee ,  Keum-Chan Whang ,  Kwang-Soon Kim ,  Hyo-Yol Park

IPC分类号： H04Q7/20

CPC分类号： H03M13/1185 ,  H03M13/116 ,  H03M13/6362

摘要： Provided is a method for puncturing a Low Density Parity Check (LDPC) code that is expressed in a factor graph configured by a bit node and a check node connected to an edge and is decoded by a parity check matrix with an information region and a parity region. A mother code with a code rate is generated. Bit nodes configuring the parity region are grouped in a block unit. A transmission code rate and the number of bits to be punctured in the mother code according to the transmission code rate are set. A puncturing process in either the block unit or a bit unit or both is performed according to the transmission code rate. All codes with required code rates can be obtained. The LDPC code puncturing method can be flexibly applied to Hybrid Automatic Repeat Request (H-ARQ) and Incremental Redundancy (IR) systems.

摘要翻译： 提供了一种在由比特节点和连接到边缘的校验节点配置的因子图中表示的低密度奇偶校验（LDPC）码的方法，并且由具有信息区域和奇偶校验的奇偶校验矩阵解码 地区。 生成具有码率的母码。 配置奇偶校验区域的位节点以块为单位分组。 设定传输码率和根据传输码率在母码中要穿孔的比特数。 根据传输码率执行块单元或位单元或两者中的删截处理。 可以获得所需的代码率的代码。 LDPC码打孔方法可以灵活地应用于混合自动重传请求（H-ARQ）和增量冗余（IR）系统。