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    Apparatus and method for detecting a signal in a communication system using Multiple Input Multiple Output scheme
    43.
    发明申请
    Apparatus and method for detecting a signal in a communication system using Multiple Input Multiple Output scheme 审中-公开
    用于使用多输入多输出方案在通信系统中检测信号的装置和方法

    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。

    Apparatus and method for removing interference in transmitting end of multi-antenna system
    45.
    发明授权
    Apparatus and method for removing interference in transmitting end of multi-antenna system 有权
    用于消除多天线系统发射端干扰的装置和方法

    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。

    Method for puncturing a low density parity check code
    46.
    发明申请
    Method for puncturing a low density parity check code 审中-公开
    打孔低密度奇偶校验码的方法

    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。

    Method and apparatus for detecting signal in a MIMO communication system
    47.
    发明申请
    Method and apparatus for detecting signal in a MIMO communication system 有权
    用于在MIMO通信系统中检测信号的方法和装置

    公开(公告)号：US20070086549A1

    公开(公告)日：2007-04-19

    申请号：US11543387

    申请日：2006-10-05

    申请人： Jae-Kwon Kim ,  Yung-Soo Kim ,  Cheol-Woo You ,  Sung-Kwon Hong ,  Mazzarese David ,  Soong-Yoon Choi ,  Gun-Chul Hwang

    发明人： Jae-Kwon Kim ,  Yung-Soo Kim ,  Cheol-Woo You ,  Sung-Kwon Hong ,  Mazzarese David ,  Soong-Yoon Choi ,  Gun-Chul Hwang

    IPC分类号： H04L1/02

    CPC分类号： H04B7/04 ,  H04L25/03006

    摘要： Detection of a signal in a receiver of a MIMO communication system includes a transmitter for signals transmission via K antennas and a receiver for receiving the signals via L reception antennas, such that L is greater than or equal to K and the system has a K×L-dimensional channel matrix, by converting the channel matrix into a plurality of matrixes having an upper triangle structure; dividing each of the matrixes into at least two sub-matrixes having a dimension lower than that of the channel matrix; detecting transmission symbols from corresponding antennas through decoding of a) lowest sub-matrix signal received which sub-matrix is constituted of components having only the channel characteristics of two antennas among the two sub-matrixes; and b) an upper sub-matrix signal using the transmission symbols; and outputting all of the detected transmission symbols, if transmission symbols by a highest sub-matrix among at least two sub-matrixes are detected.

    摘要翻译： MIMO通信系统的接收机中的信号的检测包括：用于通过K个天线进行信号传输的发射机和用于经由L个接收天线接收信号的接收机，使得L大于或等于K，并且系统具有KxL- 通过将信道矩阵转换为具有上三角形结构的多个矩阵; 将每个矩阵划分成具有小于信道矩阵的维度的至少两个子矩阵; 通过对所接收到的最小子矩阵信号进行解码来检测来自相应天线的传输符号，哪个子矩阵由仅具有两个子矩阵中的两个天线的信道特性的分量构成; 以及b）使用所述发送符号的上部子矩阵信号; 并且如果检测到在至少两个子矩阵中的最高子矩阵的传输符号，则输出所有检测到的传输符号。

    Apparatus and method for space-time coding in multiple-antenna system
    48.
    发明授权
    Apparatus and method for space-time coding in multiple-antenna system 有权
    多天线系统中时空编码的装置及方法

    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。

    Low density parity check code-based hybrid automatic repeat request method
    49.
    发明授权
    Low density parity check code-based hybrid automatic repeat request method 有权
    低密度奇偶校验码混合自动重传请求方法

    公开(公告)号：US07934138B2

    公开(公告)日：2011-04-26

    申请号：US11703595

    申请日：2007-02-07

    申请人： Dong-Ho Kim ,  Cheol-Woo You ,  Yung-Soo Kim ,  Ye-Hoon Lee

    发明人： Dong-Ho Kim ,  Cheol-Woo You ,  Yung-Soo Kim ,  Ye-Hoon Lee

    IPC分类号： H03M13/00

    CPC分类号： H04L1/1819 ,  H04L1/0057 ,  H04L1/0069 ,  H04L1/0071 ,  H04L1/1816 ,  H04L1/1887

    摘要： A transmission method based on a Hybrid Automatic Repeat Request (HARQ) scheme for in a communication system. A codeword is generated using a Low Density Parity Check (LDPC) code. Parity bits of the codeword are classified on a basis of a transmission priority. Parity bits with an identical transmission priority are grouped. An information bit group of the codeword and parity bit groups with the identical transmission priority are shuffled in a predefined pattern. A packet is generated from the shuffled information bit group and the shuffled parity bit groups based on the transmission priority. The generated packet is retransmitted in response to a retransmission request. The transmission method can obtain the effect of channel interleaving by setting a transmission priority according to importance of puncturing target blocks, shuffling blocks with the same priority, and shuffling and transmitting bits configuring each block.

    摘要翻译： 一种基于用于通信系统中的混合自动重传请求（HARQ）方案的传输方法。 使用低密度奇偶校验（LDPC）码生成码字。 基于传输优先级对码字的奇偶校验位进行分类。 具有相同传输优先级的奇偶校验位被分组。 具有相同发送优先级的码字和奇偶校验比特组的信息比特组以预定义的模式进行混洗。 根据传输优先级，从混洗信息位组和混洗奇偶校验位组生成分组。 响应于重传请求重传生成的分组。 发送方法可以根据删除目标块，具有相同优先级的混洗块的重要性，以及配置每个块的混洗和发送比特来设置传输优先级，来获得信道交织的效果。

    Ranging method and apparatus in a communication system with relay station, and system thereof
    50.
    发明授权
    Ranging method and apparatus in a communication system with relay station, and system thereof 有权
    具有中继站的通信系统中的测距方法和装置及其系统

    公开(公告)号：US07925207B2

    公开(公告)日：2011-04-12

    申请号：US11851922

    申请日：2007-09-07

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

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

    IPC分类号： H04B7/15

    CPC分类号： H04B7/2606 ,  H04B7/155

    摘要： A method for performing ranging by a mobile station in a communication system. The method includes transmitting a ranging sequence to a relay station; receiving an added signal of a reference sequence of the relay station and the ranging sequence, from the relay station; performing a correlation operation on each of the ranging sequence and the reference sequence in the added signal; estimating a time difference between the ranging sequence and the reference sequence depending on the correlation operation; and transmitting the signal to the relay station taking the time difference into account.

    摘要翻译： 一种在通信系统中由移动台执行测距的方法。 该方法包括向中继站发送测距序列; 从所述中继站接收所述中继站的参考序列和所述测距序列的相加信号; 对所添加的信号中的测距序列和参考序列中的每一个进行相关运算; 根据相关运算估计测距序列与参考序列之间的时间差; 并将信号发送到中继站考虑时间差。