公开(公告)号：US20120207097A1

公开(公告)日：2012-08-16

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

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 theMCS 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。

公开(公告)号：US20110280168A1

公开(公告)日：2011-11-17

申请号：US13081930

申请日：2011-04-07

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

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

IPC分类号： H04W52/02

CPC分类号： H04W52/0203 ,  H04W52/0229 ,  Y02D70/142

摘要： A method for reducing power consumption in a wireless communication system includes: generating a descramble initial value by using at least some bits of identification information of an STA, which is known to an AP or base station and the STA; generating a first descramble sequence by using the generated descramble initial value and comparing at least some bits of the generated first descramble sequence with at least some bits of a service field of a currently-received signal; as the comparison result, when it is determined that the destination of the currently-received signal is not set to the STA, stopping the signal reception; and as the comparison result, when it is determined that the destination of the currently-received signal is set to the STA, generating a second descramble sequence by using the descramble initial value and descrambling the currently-received signal.

摘要翻译： 一种用于降低无线通信系统中功耗的方法，包括：通过使用AP或基站和STA已知的STA的识别信息的至少一些比特来生成解扰初始值; 通过使用所生成的解扰初始值产生第一解扰序列，并将所生成的第一解扰序列的至少一些比特与当前接收信号的服务字段的至少一些比特进行比较; 作为比较结果，当确定当前接收的信号的目的地未被设置到STA时，停止信号接收; 并且作为比较结果，当确定当前接收的信号的目的地被设置为STA时，通过使用解扰初始值产生第二解扰序列并对当前接收到的信号进行解扰。

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：US08406349B2

公开(公告)日：2013-03-26

申请号：US12808726

申请日：2008-06-05

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

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

IPC分类号： H04L27/06

CPC分类号： H04L25/03318 ,  H04L25/0242 ,  H04L25/03305 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03624

摘要： Provided is a method and apparatus for receiving a signal for a MIMO system. The receiving apparatus includes: a QR decomposer for calculating a unitary matrix Q, an upper triangle matrix R, and a vector size for a received signal; a multiple dimension detector for calculating a first LLR for an output of the QR decomposer through multiple dimension detection; an inverse matrix and weight calculator for calculating an inverse matrix for the upper triangle matrix R and a weight; an interference remover for regenerating a symbol for a demodulated data stream using the fist LLR and removing interference from an output vector of the QR decomposer using the regenerated symbol; and a weight zero forcing unit for performing zero forcing on the interference removed output vector from the interference remover using the inverse matrix of the upper triangle matrix R and the weight and calculating a second LLR.

摘要翻译： 提供了一种用于接收MIMO系统的信号的方法和装置。 接收装置包括：QR分解器，用于计算酉矩阵Q，上三角矩阵R和接收信号的向量大小; 多维度检测器，用于通过多维度检测计算QR分解器的输出的第一LLR; 用于计算上三角矩阵R和权重的逆矩阵的逆矩阵和权重计算器; 干扰去除器，用于使用第一LLR再生用于解调数据流的符号，并使用再生符号去除来自QR分解器的输出向量的干扰; 以及加权零强制单元，用于使用上三角矩阵R和权重的逆矩阵和权重对来自干扰去除器的干扰去除输出向量执行零强制并计算第二LLR。

公开(公告)号：US20120106575A1

公开(公告)日：2012-05-03

申请号：US13283497

申请日：2011-10-27

申请人： Jong-Ee OH ,  Sok-Kyu Lee ,  Min-Ho Cheong ,  Jee-Yon Choi ,  Jae-Woo Park ,  Hyun-Kyu Chung

发明人： Jong-Ee OH ,  Sok-Kyu Lee ,  Min-Ho Cheong ,  Jee-Yon Choi ,  Jae-Woo Park ,  Hyun-Kyu Chung

IPC分类号： H04J3/24

CPC分类号： H04L1/0057 ,  H03M13/1102 ,  H03M13/23 ,  H03M13/6527 ,  H04L1/0068 ,  H04L1/0075 ,  H04L1/0083

摘要： Disclosed is an apparatus and method for transmitting/receiving data using a low-density parity check (LDPC) coding scheme in a communication system. The method includes generating a multi-user data packet containing data to be transmitted to a plurality of users, encoding the multi-user data packet as a BCC and an LDPC code, and transmitting the encoded multi-user data packet to the plurality of users. In the method, the encoding of the multi-user data packet encodes MPDU subframes corresponding to each of the plurality of users in the multi-user data packet as the LDPC code, and calculates information on a length in LDPC encoding, corresponding to the encoding of the multi-user data packet as the LDPC code.

摘要翻译： 公开了一种在通信系统中使用低密度奇偶校验（LDPC）编码方案发送/接收数据的装置和方法。 该方法包括生成包含要发送给多个用户的数据的多用户数据分组，将多用户数据分组编码为BCC和LDPC码，并将编码的多用户数据分组发送给多个用户 。 在该方法中，多用户数据分组的编码将与多用户数据分组中的多个用户中的每一个对应的MPDU子帧编码为LDPC码，并且计算与LDPC编码相对应的LDPC编码长度的信息 作为LDPC码的多用户数据分组。

公开(公告)号：US20110150054A1

公开(公告)日：2011-06-23

申请号：US12971548

申请日：2010-12-17

申请人： Jong-Ee OH ,  Sok-Kyu Lee

发明人： Jong-Ee OH ,  Sok-Kyu Lee

IPC分类号： H04B1/38

CPC分类号： H04B7/0413 ,  H04B7/0608 ,  H04B7/0805 ,  H04W88/08

摘要： A switching apparatus in a wireless communication system using multi-channels includes: a first antenna unit configured to transmit and receive data of a first multi-channel among the multi-channels; a second antenna unit configured to transmit and receive data of a second multi-channel among the multi-channels; a first transceiver configured to receive the data from the first antenna unit and transmit the data to the first transceiver; and a selection unit configured to transmit an output of the second antenna unit to the first transceiver.

摘要翻译： 在使用多信道的无线通信系统中的切换装置包括：第一天线单元，被配置为在多个信道中发送和接收第一多信道的数据; 第二天线单元，被配置为在所述多声道中发送和接收第二多声道的数据; 第一收发器，被配置为从所述第一天线单元接收所述数据并将所述数据发送到所述第一收发器; 以及选择单元，被配置为将所述第二天线单元的输出发送到所述第一收发器。

公开(公告)号：US08873487B2

公开(公告)日：2014-10-28

申请号：US13391904

申请日：2010-08-24

申请人： Yun-Joo Kim ,  Jong-Ee Oh ,  Sok-Kyu Lee

发明人： Yun-Joo Kim ,  Jong-Ee Oh ,  Sok-Kyu Lee

IPC分类号： H04W4/00 ,  H04L5/00 ,  H04W72/04 ,  H04W84/12

CPC分类号： H04W72/046 ,  H04L5/0037 ,  H04W84/12

摘要： The present invention relate to a wireless communication system; and, more particularly, to a communicating apparatus and method in a high rate wireless communication system.A transmitting method of data in accordance with an embodiment of the present invention, as a transmitting method of data in a high rate wireless communication system, includes: allocating one or more bands among two or more multi-bands to each of users; and simultaneously transmitting data through the allocated bands to two or more users by using the multiple antennas for the allocated respective bands.

摘要翻译： 无线通信系统技术领域本发明涉及一种无线通信系统， 更具体地，涉及一种高速率无线通信系统中的通信装置和方法。 作为高速率无线通信系统中的数据的发送方法的本发明的一个实施方式的发送数据的发送方法，包括：在两个以上的多个频带中分配一个以上的频带; 并且通过使用分配的各个频带的多个天线同时将数据通过所分配的频带发送到两个或多个用户。

公开(公告)号：US20120213305A1

公开(公告)日：2012-08-23

申请号：US13434681

申请日：2012-03-29

申请人： Jong-Ee OH ,  Minho Cheong ,  Sok-Kyu Lee

发明人： Jong-Ee OH ,  Minho Cheong ,  Sok-Kyu Lee

IPC分类号： H04B7/02

CPC分类号： H04B7/0452 ,  H04B7/0413 ,  H04L1/0083 ,  H04L1/0643 ,  H04L1/08 ,  H04L5/0007 ,  H04L5/003 ,  H04W28/06 ,  H04W84/12

摘要： The present invention relates to a method and apparatus for transmitting and receiving data. A data transmission method from a sender terminal to a receiver terminal in a MIMO system using a variable frequency band according to one embodiment of the present invention comprises: repeatedly generating a signal field depending on a frequency band that is applied to the transmission of a data frame; generating a data field including the data; generating a data frame including the signal field and the data field; and transmitting the data frame to the receiver terminal. The present invention is advantageous in that a signal field which is transmitted together with the data being transmitted from the sender terminal to the receiver terminal in the MIMO system can be sent more efficiently.

摘要翻译： 本发明涉及用于发送和接收数据的方法和装置。 根据本发明的一个实施例的使用可变频带的MIMO系统中的从发送者终端到接收终端的数据传输方法包括：根据应用于数据传输的频带重复产生信号场 帧; 生成包括数据的数据字段; 生成包括信号字段和数据字段的数据帧; 并将数据帧发送到接收机终端。 本发明的优点在于，能够更有效地发送与MIMO系统中的发送方终端发送到接收终端的数据一起发送的信号场。

公开(公告)号：US20110274065A1

公开(公告)日：2011-11-10

申请号：US13104630

申请日：2011-05-10

申请人： Jong-Ee Oh ,  Sok-Kyu Lee

发明人： Jong-Ee Oh ,  Sok-Kyu Lee

IPC分类号： H04W72/04

CPC分类号： H04W72/121 ,  H04W8/26 ,  H04W72/0453

摘要： Provided is a method for transmitting data frames to multiple STAs in a wireless communication system which divides a frequency band into frequency band segments to allocate. The method includes: setting a group by grouping a plurality of STAs; determining whether or not to separately allocate the frequency band segments to the STAs within the group; constructing a control frame containing a segment field, based on the determination result; and transmitting the constructed control frame through a common signal, and transmitting data frames.

摘要翻译： 提供了一种在将频带划分成频带段以分配的无线通信系统中将数据帧发送到多个STA的方法。 该方法包括：通过分组多个STA来设置组; 确定是否将所述频带段分别分配给所述组内的STA; 基于确定结果构建包含段字段的控制帧; 并通过公共信号发送构成的控制帧，并发送数据帧。