公开(公告)号：US20090217129A1

公开(公告)日：2009-08-27

申请号：US12393670

申请日：2009-02-26

申请人： Seho MYUNG ,  Hwan-Joo Kwon ,  Kyung-Joong Kim ,  Kyeong-Cheol Yang ,  Hyun-Koo Yang ,  Jae-Yoel Kim ,  Hak-Ju Lee

发明人： Seho MYUNG ,  Hwan-Joo Kwon ,  Kyung-Joong Kim ,  Kyeong-Cheol Yang ,  Hyun-Koo Yang ,  Jae-Yoel Kim ,  Hak-Ju Lee

IPC分类号： H03M13/05 ,  G06F11/10

CPC分类号： H03M13/1165 ,  H03M13/1102 ,  H03M13/616 ,  H03M13/618 ,  H03M13/63 ,  H03M13/6325 ,  H04L1/0057 ,  H04L1/0069 ,  H04L1/1819 ,  H04L27/3416 ,  H04L27/3488

摘要： A method and apparatus for encoding and decoding a channel in a communication system using a Low-Density Parity-Check (LDPC) code. The encoding method includes determining a modulation scheme for transmitting a symbol; determining a shortening pattern in consideration of the determined modulation scheme; grouping columns corresponding to an information word in a parity-check matrix of the LDPC code into a plurality of column groups; ordering the column groups; determining a range of a resulting information word desired to be obtained by shortening the information word; based on the range of the resulting information word, performing column group-by-column group shortening on the ordered column groups of the information word, according to the determined shortening pattern; and LDPC-encoding the shortened information word.

摘要翻译： 一种用于使用低密度奇偶校验（LDPC）码在通信系统中对信道进行编码和解码的方法和装置。 编码方法包括确定用于发送符号的调制方案; 考虑所确定的调制方案来确定缩短模式; 将与LDPC码的奇偶校验矩阵中的信息字相对应的列分组成多个列组; 订购列组; 确定期望通过缩短信息字获得的结果信息字的范围; 根据所得到的信息字的范围，根据确定的缩短模式对信息字的有序列组执行列逐列组缩短; 以及对缩短的信息字进行LDPC编码。

公开(公告)号：US20080167061A1

公开(公告)日：2008-07-10

申请号：US11985325

申请日：2007-11-14

申请人： David Mazzarese ,  Hak-Ju Lee ,  Sung-Ryul Yun ,  Dong-Seek Park

发明人： David Mazzarese ,  Hak-Ju Lee ,  Sung-Ryul Yun ,  Dong-Seek Park

IPC分类号： H04B7/00

CPC分类号： H04B7/0452 ,  H04L5/0007 ,  H04L5/005 ,  H04L27/2647

摘要： An apparatus and method for transmitting and receiving a signal and a subcarrier allocation structure therefor in a multi-user multi-antenna communication system are provided, in which a transmitter calculates receive filters for each of a plurality of receivers or for a plurality of antennas in a receiver, determines the index of a vector having a correlation with the calculated receive filters in a preset codebook vector to be a receive filter index, and transmits the receive filter index to the receiver

摘要翻译： 提供了一种用于在多用户多天线通信系统中发送和接收信号及其子载波分配结构的装置和方法，其中发射机针对多用户多天线通信系统中的每一个接收机或多个天线 接收机确定具有与预设码本向量中的计算的接收滤波器相关的矢量的索引为接收滤波器索引，并将接收滤波器索引发送到接收机

公开(公告)号：US08634867B2

公开(公告)日：2014-01-21

申请号：US11985325

申请日：2007-11-14

申请人： David Mazzarese ,  Hak-Ju Lee ,  Sung-Ryul Yun ,  Dong-Seek Park

发明人： David Mazzarese ,  Hak-Ju Lee ,  Sung-Ryul Yun ,  Dong-Seek Park

IPC分类号： H04M1/00

CPC分类号： H04B7/0452 ,  H04L5/0007 ,  H04L5/005 ,  H04L27/2647

摘要： An apparatus and method for transmitting and receiving a signal and a subcarrier allocation structure therefor in a multi-user multi-antenna communication system are provided, in which a transmitter calculates receive filters for each of a plurality of receivers or for a plurality of antennas in a receiver, determines the index of a vector having a correlation with the calculated receive filters in a preset codebook vector to be a receive filter index, and transmits the receive filter index to the receiver.

摘要翻译： 提供了一种用于在多用户多天线通信系统中发送和接收信号及其子载波分配结构的装置和方法，其中发射机针对多用户多天线通信系统中的每一个接收机或多个天线 接收机确定具有与预设码本矢量中的计算出的接收滤波器相关的矢量的索引为接收滤波器索引，并将接收滤波器索引发送给接收机。

公开(公告)号：US09966974B2

公开(公告)日：2018-05-08

申请号：US13349106

申请日：2012-01-12

申请人： Sung-Hee Hwang ,  Hak-Ju Lee ,  Se-Ho Myung ,  Jin-Hee Jeong

发明人： Sung-Hee Hwang ,  Hak-Ju Lee ,  Se-Ho Myung ,  Jin-Hee Jeong

IPC分类号： H04L29/02 ,  H03M13/05 ,  H03M13/27 ,  H04L1/00 ,  H04N21/2383 ,  H04N21/2389 ,  H04N21/438 ,  H04N21/4385 ,  H04N21/6332 ,  H04H20/42 ,  H04H60/23 ,  H04L29/06 ,  H03M13/09 ,  H03M13/11 ,  H03M13/15 ,  H03M13/29

CPC分类号： H03M13/2732 ,  H03M13/09 ,  H03M13/1102 ,  H03M13/152 ,  H03M13/2906 ,  H04H20/42 ,  H04H60/23 ,  H04L1/0041 ,  H04L1/0072 ,  H04L65/4076 ,  H04L65/607 ,  H04L69/22 ,  H04N21/2383 ,  H04N21/23895 ,  H04N21/4382 ,  H04N21/43853 ,  H04N21/6332

摘要： Method and apparatus for transmitting and receiving a signal in a broadcasting communication system are provided. Data of an input stream is divided for transmission through a frame. A header that includes information about the input stream is constructed. The frame is constructed using the header and the divided data.

公开(公告)号：US09100671B2

公开(公告)日：2015-08-04

申请号：US13343544

申请日：2012-01-04

申请人： Sung-Hee Hwang ,  Hak-Ju Lee ,  Se-Ho Myung ,  Jin-Hee Jeong

发明人： Sung-Hee Hwang ,  Hak-Ju Lee ,  Se-Ho Myung ,  Jin-Hee Jeong

IPC分类号： H04J3/16 ,  H04N21/236 ,  H04L29/06 ,  H04N21/434

CPC分类号： H04N21/236 ,  H04L29/06027 ,  H04L65/602 ,  H04L65/608 ,  H04N21/434

摘要： Methods and apparatus are provided for supporting a variable-length transport packet in an Audio/Video (AV) communication system. Data to be transmitted is determined. It is determined whether a transport packet is the variable-length transport packet. A header having information indicating whether the transport packet is the variable-length transport packet is generated. When the transport packet is the variable-length transport packet, an optional header having length information of the transport packet is generated, and the data and the transport packet having the header and the optional header, are transmitted. When the transport packet is not the variable-length transport packet, the determined data and the transport packet having the header are transmitted.

摘要翻译： 提供了用于在音频/视频（AV）通信系统中支持可变长度传输分组的方法和装置。 要发送的数据被确定。 确定传输分组是否是可变长度传输分组。 产生具有指示传输分组是否是可变长度传输分组的信息的报头。 当传输分组是可变长度传输分组时，生成具有传输分组的长度信息的可选报头，并且发送具有报头和可选报头的数据和传输分组。 当传输分组不是可变长度传输分组时，发送所确定的数据和具有报头的传输分组。

公开(公告)号：US08000427B2

公开(公告)日：2011-08-16

申请号：US11837295

申请日：2007-08-10

申请人： Hak-Ju Lee ,  David Mazzarese ,  Dong-Seek Park

发明人： Hak-Ju Lee ,  David Mazzarese ,  Dong-Seek Park

IPC分类号： H04L7/00

CPC分类号： H04B7/0617 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0632 ,  H04W72/1231

摘要： Provided is an apparatus and method for low-complexity scheduling in a multi-user Multi-Input Multi-Output (MIMO) system. In a method for scheduling in a MIMO system, a vector is set on the basis of channel information for all user terminals. A scalar for the vector is initialized. A user terminal that has the greatest scalar among unselected user terminals is selected. A user set is updated by adding the selected user terminal therein. The vector and the scalar for a user terminal not included in the user set are updated. Accordingly, a high transmission capacity can be provided while minimizing the influence of an interference signal. Also, the computation amount can be reduced greatly.

摘要翻译： 提供了一种用于多用户多输入多输出（MIMO）系统中的低复杂度调度的装置和方法。 在MIMO系统中进行调度的方法中，基于所有用户终端的信道信息来设定向量。 矢量的标量被初始化。 选择在未选择的用户终端中具有最大标量的用户终端。 通过在其中添加所选择的用户终端来更新用户集。 不包括在用户组中的用户终端的向量和标量被更新。 因此，可以在使干扰信号的影响最小化的同时提供高传输容量。 此外，计算量可以大大降低。

公开(公告)号：US20120183003A1

公开(公告)日：2012-07-19

申请号：US13349106

申请日：2012-01-12

申请人： Sung-Hee Hwang ,  Hak-Ju Lee ,  Se-Ho Myung ,  Jin-Hee Jeong

发明人： Sung-Hee Hwang ,  Hak-Ju Lee ,  Se-Ho Myung ,  Jin-Hee Jeong

IPC分类号： H04L29/02 ,  H03M13/05

CPC分类号： H03M13/2732 ,  H03M13/09 ,  H03M13/1102 ,  H03M13/152 ,  H03M13/2906 ,  H04H20/42 ,  H04H60/23 ,  H04L1/0041 ,  H04L1/0072 ,  H04L65/4076 ,  H04L65/607 ,  H04L69/22 ,  H04N21/2383 ,  H04N21/23895 ,  H04N21/4382 ,  H04N21/43853 ,  H04N21/6332

摘要： Method and apparatus for transmitting and receiving a signal in a broadcasting communication system are provided. Data of an input stream is divided for transmission through a frame. A header that includes information about the input stream is constructed. The frame is constructed using the header and the divided data.

摘要翻译： 提供了在广播通信系统中发送和接收信号的方法和装置。 输入流的数据被分割以通过帧传输。 构建包含有关输入流的信息的标题。 该帧使用头部和分割的数据构建。

公开(公告)号：US20080244350A1

公开(公告)日：2008-10-02

申请号：US12053201

申请日：2008-03-21

申请人： Elisabeth de Carvalho ,  Petar Popovski ,  Jieping Hu ,  David Mazzarese ,  Hak-Ju Lee ,  Young-Kwon Cho

发明人： Elisabeth de Carvalho ,  Petar Popovski ,  Jieping Hu ,  David Mazzarese ,  Hak-Ju Lee ,  Young-Kwon Cho

IPC分类号： H04L1/08 ,  G06F11/14

CPC分类号： H04L1/1812 ,  H04B7/061 ,  H04B7/0697 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0021 ,  H04L1/0026 ,  H04L1/06 ,  H04L1/1854 ,  H04L1/189

摘要： A method for an Automatic Repeat reQuest (ARQ) at a receiver in a Multiple Input Multiple Output (MIMO) system wherein when a received packet is erroneous and the erroneous packet is received from the weakest antenna in a Space Multiplexing (SM) mode, a first smallest number of retransmissions is computed to acquire a Signal to Noise Ratio (SNR) within or above an Adaptive Modulation and Coding (AMC) level. When the first number of the retransmissions is greater than a threshold, the sender is requested to retransmit the packets from the strongest antenna in the SM mode and when the first number of the retransmissions is smaller than the threshold, the sender is requested to retransmit the packets from the weakest antenna in the SM mode.

摘要翻译： 一种在多输入多输出（MIMO）系统中的接收机处的自动重复请求（ARQ）的方法，其中当接收到的分组是错误的并且在空间复用（SM））模式中从最弱的天线接收到错误分组时， 计算第一最小数量的重传以在自适应调制和编码（AMC）级别内或之上获取信噪比（SNR）。 当第一个重传次数大于阈值时，要求发送方以SM模式重传最强天线的分组，当第一个重传次数小于该阈值时，请求发送方重发 SM模式下最弱天线的数据包。

公开(公告)号：US20080212530A1

公开(公告)日：2008-09-04

申请号：US12040361

申请日：2008-02-29

申请人： Elisabeth de CARVALHO ,  Muhammad Imadur Rahman ,  Hak-Ju Lee ,  David Mazzarese ,  Chi-Woo Lim

发明人： Elisabeth de CARVALHO ,  Muhammad Imadur Rahman ,  Hak-Ju Lee ,  David Mazzarese ,  Chi-Woo Lim

IPC分类号： H04Q7/00

CPC分类号： H04L5/0062 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/06 ,  H04W16/12

摘要： A frequency reuse apparatus and method for a Mobile Station (MS) using a multiple-antenna in a broadband wireless access communication system are provided. The method includes dividing a first frequency band into ‘N’ second frequency bands where ‘N’ equals a number of Base Stations (BSs); dividing each second frequency band into ‘n’ third frequency bands; allocating each of the ‘N’ second frequency bands according to the number of receive antennas; and allocating the third frequency bands to all of the BSs, respectively.

摘要翻译： 提供了一种在宽带无线接入通信系统中使用多天线的移动站（MS）的频率重用装置和方法。 该方法包括将第一频带划分为“N”个第二频带，其中“N”等于基站数目（BS）; 将每个第二频带划分成“n”个第三频带; 根据接收天线的数量分配“N”个第二频带中的每一个; 以及将第三频带分别分配给所有BS。

公开(公告)号：US20070245205A1

公开(公告)日：2007-10-18

申请号：US11710854

申请日：2007-02-26

申请人： Petar Popovski ,  Hiroyuki Yomo ,  Elisabeth De Carvalho ,  Seung-Hoon Park ,  David Mazzarese ,  Marcos Katz ,  Dong-Seek Park ,  Sung-Kwon Hong ,  Hak-Ju Lee

发明人： Petar Popovski ,  Hiroyuki Yomo ,  Elisabeth De Carvalho ,  Seung-Hoon Park ,  David Mazzarese ,  Marcos Katz ,  Dong-Seek Park ,  Sung-Kwon Hong ,  Hak-Ju Lee

IPC分类号： H04L1/18

CPC分类号： H04L1/0668 ,  H04L1/0001 ,  H04L1/0006 ,  H04L1/1671 ,  H04L1/1845 ,  H04L1/1893

摘要： Automatic Repeat reQuest (ARQ) apparatus and method of a Multiple Input Multiple Output (MIMO system are provided. The ARQ method includes decoding, when one or more packets are received, the received packets and trying to detect the decoded packets; and storing, when error is detected from the packets, the corresponding error packet, requesting a transmitter to retransmit N-ary packets from which the error is detected and to transmit (M-N)-ary new packets when the number of the error packets N is smaller than the total number of the transmitted packets M. Accordingly, the error rate of the retransmitted data can be minimized, the number of retransmissions can be decreased, and the overall data transmission rate can be raised.

摘要翻译： 自动重复请求（ARQ）多输入多输出的装置和方法（MIMO系统），ARQ方法包括当接收到一个或多个分组时对解码的分组进行解码，并尝试检测解码的分组; 从分组中检测到错误，相应的错误分组，请求发送器重传从其检测到错误的N个分组，并且当错误分组N的数量小于总数时发送（MN）个新的分组 发送数据包M的数量。因此，重发数据的错误率可以最小化，可以减少重传次数，并且可以提高整体数据传输速率。