公开(公告)号：US20100260246A1

公开(公告)日：2010-10-14

申请号：US12808179

申请日：2008-11-28

申请人： Minho Cheong ,  Yu-Ro Lee ,  Jong-Ee Oh ,  Sok-Kyu Lee

发明人： Minho Cheong ,  Yu-Ro Lee ,  Jong-Ee Oh ,  Sok-Kyu Lee

IPC分类号： H04B1/38 ,  H04L27/00

CPC分类号： H04B1/40

摘要： Provided is a transmitter and a receiver for a high-throughput wireless communication system. The transmitter includes a baseband transmitter, a DIF transmitter, and a RF transmitter. The baseband transmitter performs a MAC protocol process on transmission signals and reception signals and processes the transmission signals by dividing an entire transmission band into n bands in a physical layer process of the transmission data, where n is a natural number. The DIF transmitter combines transmission signals of each band from the baseband transmitter and outputs m channel signals corresponding to a number of transmission antennas, where m is a natural number. The RF transmitter modulates each of the channel signals transferred from the DIF transmitter and transmits the modulated signals through m antennas.

摘要翻译： 提供了一种用于高吞吐量无线通信系统的发射机和接收机。 发射机包括基带发射机，DIF发射机和RF发射机。 基带发射机对传输信号和接收信号执行MAC协议处理，并且通过在传输数据的物理层处理中将整个传输频带划分成n个频带来处理传输信号，其中n是自然数。 DIF发射机组合来自基带发射机的每个频带的传输信号，并输出对应于多个发射天线的m个信道信号，其中m是自然数。 RF发射机调制从DIF发射机传送的每个信道信号，并通过m个天线发送调制信号。

公开(公告)号：US20100142468A1

公开(公告)日：2010-06-10

申请号：US12634297

申请日：2009-12-09

申请人： Minho CHEONG ,  Jong-Ee Oh ,  Yu-Ro Lee ,  Sok-Kyu Lee

发明人： Minho CHEONG ,  Jong-Ee Oh ,  Yu-Ro Lee ,  Sok-Kyu Lee

IPC分类号： H04W72/04

CPC分类号： H04W72/10 ,  H04W74/0808

摘要： An apparatus and method for supporting access are provided. The method for supporting access in a wireless communication system includes: checking a plurality of stations (STA) which are to get access in a network and a plurality of access nodes of the respective STAs; determining the access priorities of the checked STAs and the priorities of the access nodes of the respective STAs; dividing a wireless resource and channel available in the network into multiple wireless resources and channels; and connecting the access nodes of the respective STAs to the multiple wireless resources and channels using a multi-channel media access control (MAC) protocol.

摘要翻译： 提供一种用于支持访问的装置和方法。 用于在无线通信系统中支持接入的方法包括：检查要在网络中访问的多个站（STA）和相应STA的多个接入节点; 确定所检查的STA的接入优先级和相应STA的接入节点的优先级; 将网络中可用的无线资源和信道划分为多个无线资源和信道; 以及使用多信道媒体访问控制（MAC）协议将各个STA的接入节点连接到多个无线资源和信道。

公开(公告)号：US20100118851A1

公开(公告)日：2010-05-13

申请号：US12615557

申请日：2009-11-10

申请人： Yun-Joo Kim ,  Jeeyon Choi ,  Yoo-Seung Song ,  Yu-Ro Lee ,  Jong-Ee Oh ,  Minho Cheong ,  Sok-Kyu Lee

发明人： Yun-Joo Kim ,  Jeeyon Choi ,  Yoo-Seung Song ,  Yu-Ro Lee ,  Jong-Ee Oh ,  Minho Cheong ,  Sok-Kyu Lee

IPC分类号： H04W40/00

CPC分类号： H04W84/12

摘要： Provided are an apparatus and method for providing a WLAN service using multiple channels. The wireless local area network (WLAN) service apparatus includes a service request receiver configured to receive service request information from a first wireless terminal accessed through a first channel, a data receiver configured to receive data from a first access point accessed through a second channel according to the service request information, a data transmitter configured to transmit the data to the first wireless terminal in a predetermined service area, and an access controller configured to control the first wireless terminal and the first access point to be accessed through different channels.

摘要翻译： 提供了一种用于使用多个信道来提供WLAN服务的装置和方法。 无线局域网（WLAN）服务设备包括：服务请求接收器，被配置为从通过第一信道访问的第一无线终端接收服务请求信息;数据接收器，被配置为从通过第二信道访问的第一接入点接收数据， 服务请求信息;数据发送器，被配置为将数据发送到预定服务区域中的第一无线终端;以及接入控制器，被配置为控制要通过不同信道访问的第一无线终端和第一接入点。

公开(公告)号：US08107563B2

公开(公告)日：2012-01-31

申请号：US12177655

申请日：2008-07-22

申请人： Chanho Yoon ,  Il-Gu Lee ,  Jung-Bo Son ,  Eun-Young Choi ,  Yu-Ro Lee ,  Sok-Kyu Lee

发明人： Chanho Yoon ,  Il-Gu Lee ,  Jung-Bo Son ,  Eun-Young Choi ,  Yu-Ro Lee ,  Sok-Kyu Lee

IPC分类号： H04L27/14

CPC分类号： H04B7/0851 ,  H04B7/0669 ,  H04L1/0048 ,  H04L1/0631 ,  H04L25/067 ,  H04L27/2601

摘要： Provided are a receiving apparatus for a multiple input multiple output (MIMO) system and a method thereof. The receiving apparatus includes a QR decomposing unit for calculating a single (Q) matrix vector and an upper triangle (R) matrix vector for a receiving signal vector; a first symbol estimation unit for estimating predetermined symbols using the calculated Q matrix vector and R matrix vector; a log likelihood ratio (LLR) calculating unit for calculating log likelihood ratios of unit bits for the estimated symbols; an interference removing unit for receiving a decoded signal that is decided using the calculated log likelihood ratios and removing interference from the receiving signal vector; and a second symbol estimation unit for linearly estimating remaining symbols for the interference removed signal.

摘要翻译： 提供了一种用于多输入多输出（MIMO）系统的接收装置及其方法。 接收装置包括用于计算接收信号矢量的单（Q）矩阵向量和上三角（R）矩阵向量的QR分解单元; 第一符号估计单元，用于使用所计算的Q矩阵向量和R矩阵向量来估计预定符号; 对数似然比（LLR）计算单元，用于计算估计符号的单位比特的对数似然比; 干扰去除单元，用于接收使用所计算的对数似然比决定的解码信号，并从接收信号矢量中去除干扰; 以及用于线性估计用于干扰去除信号的剩余符号的第二符号估计单元。

公开(公告)号：US08472577B2

公开(公告)日：2013-06-25

申请号：US12274056

申请日：2008-11-19

申请人： Minho Cheong ,  Yu-Ro Lee ,  Sok-Kyu Lee ,  Il-Gu Lee

发明人： Minho Cheong ,  Yu-Ro Lee ,  Sok-Kyu Lee ,  Il-Gu Lee

IPC分类号： H04L7/00

CPC分类号： H04W56/0035 ,  H04L7/042

摘要： Provided is an apparatus and method for detecting reception signal symbol synchronization in a wireless communication system. The method, includes: calculating a channel power value in each of multiple antennas; selecting and averaging at least 2 channel power values; compensating carrier frequency offset for an average value; and determining a symbol boundary of a reception signal according to the size of the average value compensating the carrier frequency offset.

摘要翻译： 提供一种用于在无线通信系统中检测接收信号符号同步的装置和方法。 该方法包括：计算多个天线中每个天线的信道功率值; 选择和平均至少2个通道功率值; 补偿平均值的载波频率偏移; 以及根据补偿载波频率偏移的平均值的大小来确定接收信号的符号边界。

公开(公告)号：US08379748B2

公开(公告)日：2013-02-19

申请号：US12633919

申请日：2009-12-09

申请人： Yu-Ro Lee ,  Minho Cheong ,  Jong-Eo Oh ,  Jeevon Choi ,  Sok-Kyu Lee

发明人： Yu-Ro Lee ,  Minho Cheong ,  Jong-Eo Oh ,  Jeevon Choi ,  Sok-Kyu Lee

IPC分类号： H04L1/20 ,  H04B7/02

CPC分类号： H04L25/067 ,  H04L25/03006 ,  H04L2025/03426

摘要： Provided are an apparatus and method for reception in a MIMO system. An apparatus for calculating a signal weight, includes: at least two multiplexers configured to receive, a data stream corresponding to a weight inputted and multiplex the received data stream prior to output; a multiplexing control unit configured to control the outputs of the respective multiplexers and provide a clock of a predetermined rate and a clock of a double rate two times higher than the predetermined rate; a first multiplier configured to receive multiplexed data outputted from the respective multiplexers and multiply the multiplexed data; a first storage unit configured to latch the multiplication result of the first multiplier by the double-rate clock prior to output; an adder configured to add the output of the first storage unit and the output of the first multiplier; and a second storage unit configured to latch the addition.

摘要翻译： 提供了一种用于MIMO系统中的接收的装置和方法。 一种用于计算信号权重的装置，包括：至少两个多路复用器，被配置为在输出之前接收与所输入的权重相对应的数据流并对所接收的数据流进行多路复用; 复用控制单元，被配置为控制各个多路复用器的输出，并提供预定速率的时钟和比预定速率高两倍的双倍速率的时钟; 第一乘法器，被配置为接收从各个多路复用器输出的多路复用数据并乘以多路复用数据; 第一存储单元，被配置为在输出之前将所述第一乘法器的乘法结果锁存为双速率时钟; 加法器，被配置为将第一存储单元的输出和第一乘法器的输出相加; 以及第二存储单元，被配置为锁存所述相加。

公开(公告)号：US20100325511A1

公开(公告)日：2010-12-23

申请号：US12517763

申请日：2007-10-31

申请人： Jong-Ee Oh ,  Chanho Yoon ,  Minho Cheong ,  Yu-Ro Lee ,  Sok-Kyu Lee ,  Heejung Yu ,  Seung-Chan Bang

发明人： Jong-Ee Oh ,  Chanho Yoon ,  Minho Cheong ,  Yu-Ro Lee ,  Sok-Kyu Lee ,  Heejung Yu ,  Seung-Chan Bang

IPC分类号： H03M13/05 ,  G06F11/10

CPC分类号： H03M13/116 ,  H03M13/1188 ,  H03M13/618 ,  H03M13/6356 ,  H03M13/6393

摘要： A method of generating a parity-check matrix of a low density parity-check (LDPC) code with a variable information length and a variable code rate, an encoding/decoding method, and an apparatus using the same are provided. The method of generating a parity-check matrix of an LDPC code includes: a first parity-check matrix generation process of generating a first parity-check matrix constructed with a first information block and a parity block; and an m-th parity-check matrix generation process of generating an m-th parity-check matrix by an m-th information block to a generated (m−1)-th parity-check matrix (1

摘要翻译： 提供一种生成具有可变信息长度和可变码率的低密度奇偶校验（LDPC）码的奇偶校验矩阵的方法，编码/解码方法以及使用该校验矩阵的装置。 产生LDPC码的奇偶校验矩阵的方法包括：产生由第一信息块和奇偶校验块构成的第一奇偶校验矩阵的第一奇偶校验矩阵生成处理; 以及第m个奇偶校验矩阵生成处理，其通过第m个信息块生成第m个奇偶校验矩阵到生成的第（m-1）个奇偶校验矩阵（1

公开(公告)号：US20090154586A1

公开(公告)日：2009-06-18

申请号：US12177418

申请日：2008-07-22

申请人： Yu-Ro Lee ,  Jong-Ee Oh ,  Minho Cheong ,  Sok-Kyu Lee

发明人： Yu-Ro Lee ,  Jong-Ee Oh ,  Minho Cheong ,  Sok-Kyu Lee

IPC分类号： H04L1/02 ,  H04L27/06

CPC分类号： H04L5/0023 ,  H04L25/0246 ,  H04L25/067 ,  H04L27/2647

摘要： Provided are a receiver of a Multiple Input Multiple Output (MIMO) system, QR decomposition and multi-dimensional detection used in the receiver. The receiver includes: a QR decomposing unit for performing a QR decomposing operation in cycles 1 to nT-n−1, and performing a column exchanging operation in cycles nT-n to nT as QR decomposition where n and T are an integer number; and a multi-dimensional detecting unit for receiving a first R matrix Ry and a second R matrix Rz from the QR decomposing unit, calculating a first distance value for detecting an mth symbol for the first R matrix and a second distance value for detecting an mth symbol for the second R matrix, and simultaneously detecting an mth symbol and an (m−1)th symbol using the first distance value and the second distance value.

摘要翻译： 提供了多输入多输出（MIMO）系统的接收机，在接收机中使用QR分解和多维检测。 接收机包括：QR分解单元，用于在周期1至nT-n-1中执行QR分解操作，并且以周期nT-n至nT执行列交换操作作为QR分解，其中n和T为整数; 以及多维检测单元，用于从QR分解单元接收第一R矩阵Ry和第二R矩阵Rz，计算用于检测用于第一R矩阵的第m个符号的第一距离值和用于检测第m个第m个的第二距离值 并且使用第一距离值和第二距离值同时检测第m个符号和第（m-1）个符号。

公开(公告)号：US20100031116A1

公开(公告)日：2010-02-04

申请号：US12443688

申请日：2007-10-01

申请人： Chan-Ho Yoon ,  Jong-Ee Oh ,  Min-Ho Cheong ,  Yu-Ro Lee ,  Sok-Kyu Lee ,  Hee-Jung Yu ,  Seung-Chan Bang

发明人： Chan-Ho Yoon ,  Jong-Ee Oh ,  Min-Ho Cheong ,  Yu-Ro Lee ,  Sok-Kyu Lee ,  Hee-Jung Yu ,  Seung-Chan Bang

IPC分类号： H03M13/05 ,  G06F11/10

CPC分类号： H03M13/116 ,  H03M13/1185 ,  H03M13/1188

摘要： There is provided to a method for encoding an LDPC (Low Density Parity Check) code using the result of checking a previously specified parity, including the steps of: forming a parity bit check matrix having a dual diagonal structure consisting of (N-K) rows for check nodes and (N-K) columns on the basis of the H matrix; calculating the values of all the parity bits by inserting a given binary value in sub-blocks, with the parity bit check matrix formed on the H matrix; if the values of the parity bits are incorrect, checking the parity bit corresponding to the sub-block located in the last part of the H matrix; searching the parity bit parts where the parity bit check result is represented as “1”; performing an XOR operation in sub-blocks on the parity bit part obtained through a simultaneous equation between the parity bits of the searched parity bit parts and the parity bit parts; and determining the value of the parity bit satisfying the condition that the value obtained by multiplying the H matrix by a code word vector.

摘要翻译： 提供了一种使用检查先前指定的奇偶校验的结果来编码LDPC（低密度奇偶校验）码的方法，包括以下步骤：形成具有由（NK）行组成的双对角线结构的奇偶校验位校验矩阵，用于 基于H矩阵检查节点和（NK）列; 通过在H块中形成奇偶校验位校验矩阵，在子块中插入给定的二进制值来计算所有奇偶校验位的值; 如果奇偶校验位的值不正确，则检查与位于H矩阵的最后部分中的子块相对应的奇偶校验位; 搜索奇偶校验位检查结果被表示为“1”的奇偶校验位部分; 在通过搜索到的奇偶校验位部分的奇偶校验位与奇偶校验位部分之间的联立方程获得的奇偶校验位部分的子块中执行异或运算; 以及确定所述奇偶校验位的值满足将所述H矩阵乘以码字矢量而获得的值的条件。

公开(公告)号：US09246563B2

公开(公告)日：2016-01-26

申请号：US13504925

申请日：2010-10-30

申请人： Yu-Ro Lee ,  Jong-Ee Oh ,  Sok-Kyu Lee

发明人： Yu-Ro Lee ,  Jong-Ee Oh ,  Sok-Kyu Lee

IPC分类号： H04W4/00 ,  H04B7/04 ,  H04L25/02

CPC分类号： H04B7/0452 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/08 ,  H04L25/0204

摘要： The present invention particularly relates to a method and an apparatus for improving the efficiency of data transmission in a multi-user wireless transmission system. According to one embodiment of the present invention, the method, which is a transmission method of data in a multi-user wireless communication system, comprises the steps of: estimating channel states of each terminal through sounding or feedback information received from the terminals, and selecting terminals to which individual data are to be transmitted at the same time; determining a signal to noise ratio of the selected terminals, and calculating a precoding matrix; calculating a modulation and coding scheme (MCS) of each terminal and the number of symbols of data fields in accordance with the MCS of each terminal; dividing an area according to the number of terminals to which the data fields are to be simultaneously transmitted, if there are two or more selected terminals; and recalculating a reception signal to interference and noise ratio (SINR) for each area of each terminal, configuring a packet by resetting the MCS according to the recalculated SINR, and transmitting the configured packet.

摘要翻译： 本发明特别涉及一种用于提高多用户无线传输系统中的数据传输效率的方法和装置。 根据本发明的一个实施例，作为多用户无线通信系统中的数据的传输方法的方法包括以下步骤：通过从终端接收的探测或反馈信息来估计每个终端的信道状态，以及 选择要同时发送单个数据的终端; 确定所选终端的信噪比，并计算预编码矩阵; 根据每个终端的MCS计算每个终端的调制和编码方案（MCS）和数据字段的符号数; 如果存在两个或更多个所选择的终端，则根据要同时发送数据字段的终端数量划分一个区域; 并重新计算每个终端的每个区域的接收信号与干扰和噪声比（SINR），通过根据重新计算的SINR重新设置MCS来配置分组，并发送配置的分组。