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：US20080009302A1

公开(公告)日：2008-01-10

申请号：US11770055

申请日：2007-06-28

申请人： Myeon-Kyun CHO ,  Yung-Soo Kim ,  Cheol-Woo You ,  Woo-Hyun Seo ,  Daesik Hong

发明人： Myeon-Kyun CHO ,  Yung-Soo Kim ,  Cheol-Woo You ,  Woo-Hyun Seo ,  Daesik Hong

IPC分类号： H04Q7/20

CPC分类号： H04W24/00 ,  H04L1/0026 ,  H04L1/0028 ,  H04W72/00 ,  H04W88/02

摘要： An apparatus and method for feeding back Channel Quality Information (CQI) in a wireless communication system are provided. Total channels are grouped into certain number of groups according to downlink channel estimates. Group indexes are determined for the channels. Feedback information is generated using the group indexes of the channels and representative values of the groups. Then, the generated feedback information can be transmitted.

摘要翻译： 提供了一种用于在无线通信系统中反馈信道质量信息（CQI）的装置和方法。 根据下行链路信道估计，总信道被分组成一定数量的组。 确定通道的组索引。 使用通道的组索引和组的代表值生成反馈信息。 然后，可以发送生成的反馈信息。

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：US20070060091A1

公开(公告)日：2007-03-15

申请号：US11510042

申请日：2006-08-25

申请人： Eung-Sun Kim ,  Cheol-Woo You ,  Yung-Soo Kim ,  Jong-Hyung Kwun

发明人： Eung-Sun Kim ,  Cheol-Woo You ,  Yung-Soo Kim ,  Jong-Hyung Kwun

IPC分类号： H04B1/06 ,  H04Q7/20

CPC分类号： H04W48/16 ,  H04B7/2621 ,  H04W48/20

摘要： A method is provided for recognizing the frequency bandwidth of a base station in a mobile communication system with frequency bandwidth scalability where the transmission frequency bands of base stations and mobile stations having different frequency bandwidths are overlaid with one another. The base stations transmit to a mobile station first information, including information about their frequency bandwidths at the same frequency position over a minimum frequency bandwidth with the same center frequency. The mobile station recognizes the presence of the base stations by comparing the first information from the base stations and detects the frequency bandwidth information in the first information.

摘要翻译： 提供了一种用于在具有频率带宽可伸缩性的移动通信系统中识别基站的频率带宽的方法，其中具有不同频带宽度的基站和移动台的传输频带彼此重叠。 基站在具有相同中心频率的最小频率带宽上向移动台发送包括在相同频率位置上的频率带宽的信息的第一信息。 移动台通过比较来自基站的第一信息来识别基站的存在，并检测第一信息中的频带宽度信息。

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：US07796997B2

公开(公告)日：2010-09-14

申请号：US11508049

申请日：2006-08-22

申请人： Eung-Sun Kim ,  Yung-Soo Kim ,  Cheol-Woo You ,  Jong-Hyung Kwun

发明人： Eung-Sun Kim ,  Yung-Soo Kim ,  Cheol-Woo You ,  Jong-Hyung Kwun

IPC分类号： H04W88/02

CPC分类号： H04W48/12 ,  H04W72/048

摘要： Disclosed is a cellular-based wireless communication system, and more particularly a method for allocating resources for data transmission in a cellular-based wireless communication system employing a multicarrier scheme. Frequency resources are divided into time slots defined by one frame and the divided time slots are allocated to an uplink and the downlink. During a predetermined time period, the frequency resources are allocated as resources for transmitting sync preambles. During a next predetermined time period, the frequency resources are allocated in such a manner that the frequency resources for sectors are successively and repeatedly used as resources for transmitting broadcasting messages on a sector-by-sector basis. In the remaining time slots, except the time slots for transmitting the preambles and the broadcasting messages, the frequency resources are allocated as resources for transmitting channel estimation midambles for dynamic channel allocation.

摘要翻译： 公开了一种基于蜂窝的无线通信系统，更具体地，涉及一种在采用多载波方案的基于蜂窝的无线通信系统中为数据传输分配资源的方法。 频率资源划分为一帧定义的时隙，分配的时隙分配给上行链路和下行链路。 在预定时间段期间，频率资源被分配为用于发送同步前导码的资源。 在下一个预定时间段期间，频率资源被分配成使得用于扇区的频率资源被连续和重复地用作用于逐扇区地发送广播消息的资源。 在剩余时隙中，除了用于发送前导码和广播消息的时隙之外，频率资源被分配为用于发送用于动态信道分配的信道估计中间码的资源。

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。

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。

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。

公开(公告)号：US07826571B2

公开(公告)日：2010-11-02

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经由K个天线的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K× 通过将信道矩阵转换成具有上三角形结构的多个矩阵来生成L维信道矩阵; 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。