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61. 发明申请

US20100150281A1 APPARATUS AND METHOD FOR RECEPTION IN MULTI-INPUT MULTI-OUTPUT SYSTEM 有权
标题翻译：在多输入多输出系统中接收的装置和方法
公开(公告)号：US20100150281A1
公开(公告)日：2010-06-17
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： H04L27/06
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。

62. 发明申请

US20100150257A1 APPARATUS AND METHOD FOR ESTIMATING TIMING OFFSET IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：在无线通信系统中估计时序偏移的装置和方法
公开(公告)号：US20100150257A1
公开(公告)日：2010-06-17
申请号：US12556023
申请日：2009-09-09
申请人： Il-Gu Lee , Hun-Sik Kang , Sok-Kyu Lee
发明人： Il-Gu Lee , Hun-Sik Kang , Sok-Kyu Lee
IPC分类号： H04L7/00 , H04L27/28 , H04B15/00
CPC分类号： H04L27/2662 , H04L27/2657 , H04L27/2675
摘要： A method for estimating timing offset in an OFDM wireless communication system using preamble and pilot includes: estimating a carrier offset by using preamble included in a currently received OFDM packet and estimating a first timing offset based on the estimated carrier offset to thereby produce a first timing offset estimation value; estimating a second timing offset to thereby produce a second timing offset estimation value by transforming the OFDM packet into signals of frequency domain and using a pilot signal of the frequency-domain signals; checking a channel condition based on packet error information of a previously received packet to thereby produce error condition information, and selecting one between the first timing offset estimation value and the second timing offset estimation value based on the error condition information; and compensating data signals for timing offset among the frequency-domain signals the based on the selected timing offset estimation value.
摘要翻译：用于使用前导码和导频来估计OFDM无线通信系统中的定时偏移的方法包括：通过使用包括在当前接收的OFDM分组中的前导码来估计载波偏移，并且基于所估计的载波偏移来估计第一定时偏移，从而产生第一定时偏移估计值; 通过将所述OFDM分组变换为频域的信号并使用所述频域信号的导频信号来估计第二定时偏移，从而产生第二定时偏移估计值; 基于先前接收到的分组的分组错误信息来检查信道条件，从而产生错误条件信息，并且基于所述错误条件信息在所述第一定时偏移估计值和所述第二定时偏移估计值之间进行选择; 以及基于所选择的定时偏移估计值，在频域信号之间补偿用于定时偏移的数据信号。

63. 发明申请

US20100037119A1 APPARATUS AND METHOD FOR UPDATING CHECK NODE OF LOW-DENSITY PARITY CHECK CODES 审中-公开
标题翻译：检查低密度奇偶校验码代码的装置和方法
公开(公告)号：US20100037119A1
公开(公告)日：2010-02-11
申请号：US12517455
申请日：2007-12-05
申请人： Jong-Ee Oh , Yu-Ro Lee , Chanho Yoon , Minho Cheong , Sok-Kyu Lee , Yoo-Seung Song , Younggyun Kim
发明人： Jong-Ee Oh , Yu-Ro Lee , Chanho Yoon , Minho Cheong , Sok-Kyu Lee , Yoo-Seung Song , Younggyun Kim
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： H03M13/1122 , H03M13/1117 , H03M13/112 , H03M13/6527 , H03M13/6544 , H03M13/6577 , H03M13/658 , H03M13/6583
摘要： An apparatus and method for updating a check node of a low-density parity check (LDPC) code in order to decode the LDPC code are provided. The method includes the operations of: (a) obtaining a first bit of a first minimum value among input values, the number of input values being equal to the number of degrees of the check node, by performing an AND operation on first bits of the input values, the first bits being most significant bits of the input values; (b) obtaining result values by switching and sequentially performing an XOR operation and an OR operation on the first bit of the first minimum value and each of the first bits of the input values; and (c) performing operations (a) and (b) on the result values set as input values and performing operations (a) and (b) a number of times corresponding to the number of bits of each input value, that is, repeating until last bits are set as input values, to thereby obtain the first minimum value, the last bits being least significant bits of the input values. Accordingly, the complexity of hardware is reduced, and super high-speed processing is possible.
摘要翻译：提供了一种用于更新低密度奇偶校验（LDPC）码的校验节点以便解码LDPC码的装置和方法。该方法包括以下操作：（a）通过对所述校验节点的第一比特执行“与”运算，获得输入值中的第一最小值的第一比特，输入值的数目等于校验节点的度数。输入值，第一位是输入值的最高有效位; （b）通过对所述第一最小值的所述第一位和所述输入值的所述第一位中的每一个进行切换和顺序执行异或运算和或运算来获得结果值; 和（c）对设置为输入值的结果值执行操作（a）和（b），并且执行操作（a）和（b）与每个输入值的位数相对应的次数，即重复直到最后的位被设置为输入值为止，从而获得第一最小值，最后的位是输入值的最低有效位。因此，硬件的复杂度降低，超高速处理成为可能。

64. 发明申请

US20100031116A1 METHOD FOR ENCODING LOW DENSITY PARITY CHECK CODES USING RESULT OF CHECKING PREVIOUSLY SPECIFIED PARITY BITS 有权
标题翻译：使用检查先前指定的奇偶校验位来编码低密度奇偶校验码的方法
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。

65. 发明授权

US07266164B2 Apparatus for symbol timing detection for wireless communication system 失效
标题翻译：用于无线通信系统的符号定时检测装置
公开(公告)号：US07266164B2
公开(公告)日：2007-09-04
申请号：US10855698
申请日：2004-05-26
申请人： Taehyun Jeon , Sok-Kyu Lee
发明人： Taehyun Jeon , Sok-Kyu Lee
IPC分类号： H03D1/00
CPC分类号： H04L7/041
摘要： The present invention is directed to an apparatus for symbol timing detection for a wireless communication system. According to the present invention, the samples of the output of an analog-to-digital converter are utilized prior to the completion of the automatic gain control function to detect symbol timing using autocorrelations of the samples, and a structure supporting an average window size and a delay value is provided to optimize the complexity and allow a signal demodulation of high reliability.
摘要翻译：本发明涉及一种用于无线通信系统的符号定时检测装置。根据本发明，在完成自动增益控制功能之前利用模数转换器的输出的样本，以使用样本的自相关来检测符号定时，以及支持平均窗口大小和提供延迟值以优化复杂性并允许高可靠性的信号解调。

66. 发明申请

US20070115802A1 Transmitting and receiving systems for increasing service coverage in orthogonal frequency division multiplexing wireless local area network, and method thereof 有权
标题翻译：用于在正交频分复用无线局域网中增加服务覆盖的发射和接收系统及其方法
公开(公告)号：US20070115802A1
公开(公告)日：2007-05-24
申请号：US11635927
申请日：2006-12-08
申请人： Hee-Jung Yu , Eun-Young Choi , Chan-Ho Yoon , Jung-Bo Son , Il-Gu Lee , Deuk-Su Lyu , Tae-hyun Jeon , Seung-Wook Min , Sok-Kyu Lee , Seung-Chan Bang , Seung-Ku Hwang
发明人： Hee-Jung Yu , Eun-Young Choi , Chan-Ho Yoon , Jung-Bo Son , Il-Gu Lee , Deuk-Su Lyu , Tae-hyun Jeon , Seung-Wook Min , Sok-Kyu Lee , Seung-Chan Bang , Seung-Ku Hwang
IPC分类号： H04J11/00
CPC分类号： H04L5/0046 , H04L27/2613 , H04L27/2627 , H04L27/2649 , H04W28/14 , H04W72/04 , H04W84/12
摘要： The present invention relates to an orthogonal frequency division multiplexing wireless local area network (LAN) transmitting/receiving system for providing expanded service coverage, and a method thereof. According to the present invention, first OFDM modulation is performed for an even-numbered time, and second OFDM modulation is performed by changing subcarrier allocation positions of first OFDM modulated symbols for an odd-numbered time. In addition, a transmitting frame including a plurality of signal fields according to the first and second OFDM modulation is transmitted. The receiving system determines a format configuration of the received frame to determine whether a signal field is repeatedly generated in the frame. When it is determined that the signal field is not repeatedly generated, corresponding demodulation is performed. When it is determined that the signal field is repeatedly performed, the signal field is demodulated by using first bit allocation information and is demodulated by using second bit allocation information having a 1/2 value of the first bit allocation information. A data field is demodulated according to the demodulated signal field.
摘要翻译：本发明涉及一种用于提供扩展业务覆盖的正交频分复用无线局域网（LAN）发送/接收系统及其方法。根据本发明，对于偶数时间执行第一OFDM调制，并且通过改变奇数时间的第一OFDM调制符号的副载波分配位置来执行第二OFDM调制。此外，发送包括根据第一和第二OFDM调制的多个信号字段的发送帧。接收系统确定接收到的帧的格式配置，以确定帧中是否重复产生信号字段。当确定信号域不被重复产生时，执行相应的解调。当确定重复执行信号场时，通过使用第一比特分配信息解调信号场，并且通过使用具有第一比特分配信息的1/2值的第二比特分配信息进行解调。根据解调信号字段对数据字段进行解调。

67. 发明申请

US20050122912A1 Link adaptation method using feedback information for wireless communication system 有权
标题翻译：使用无线通信系统反馈信息的链路自适应方法
公开(公告)号：US20050122912A1
公开(公告)日：2005-06-09
申请号：US10855274
申请日：2004-05-26
申请人： Taehyun Jeon , Sok-Kyu Lee
发明人： Taehyun Jeon , Sok-Kyu Lee
IPC分类号： H04B7/26 , H04B7/005 , H04L1/00
CPC分类号： H04L1/0003 , H04W52/04 , H04W52/241
摘要： Disclosed is a link margin adaptation method using feedback information of a wireless communication system. For transmission and reception of data between two nodes of the wireless communication system, a transmission node requests a receiving node to transmit a link margin. The transmission node receives the link margin, and selects one of a white noise table or a delay spread table according to a delay spread value between the two nodes. Then, the transmission node adapts a link between the two nodes to a transmission mode and decides a transmission rate to transmit data at the decided transmission rate, thereby improving transmission capacity of the wireless communication system, obtaining the optimum link state, extending power utilization time of stations, and reducing interference between stations.
摘要翻译：公开了一种使用无线通信系统的反馈信息的链路余量调整方法。为了在无线通信系统的两个节点之间发送和接收数据，传输节点请求接收节点发送链路余量。发送节点接收链路余量，根据两个节点之间的延迟扩展值，选择白噪声表或延迟扩展表之一。然后，传输节点将两个节点之间的链路适配为传输模式，并决定传输速率以确定的传输速率传输数据，从而提高无线通信系统的传输容量，获得最佳链路状态，延长电源利用时间的站点，并减少站点之间的干扰。

68. 发明授权

US09246563B2 Method for transmitting data in multi-user wireless communication system 有权
标题翻译：在多用户无线通信系统中传输数据的方法
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。

69. 发明授权

US08923261B2 Method for transmitting control and training symbols in multi-user wireless communication system 有权
标题翻译：在多用户无线通信系统中发送控制和训练符号的方法
公开(公告)号：US08923261B2
公开(公告)日：2014-12-30
申请号：US13458993
申请日：2012-04-27
申请人： Yu-Ro Lee , Jung-Bo Son , Sok-Kyu Lee
发明人： Yu-Ro Lee , Jung-Bo Son , Sok-Kyu Lee
IPC分类号： H04B15/00 , H04W84/12 , H04L1/00 , H04W48/08 , H04L5/00 , H04W28/22 , H04W28/06 , H04W28/04
CPC分类号： H04W72/0406 , H04B7/0452 , H04L1/007 , H04L1/0072 , H04L1/0606 , H04L1/0612 , H04L5/0023 , H04L5/0053 , H04L5/0073 , H04W28/04 , H04W28/06 , H04W28/22 , H04W48/08 , H04W80/04 , H04W84/12
摘要： The present invention relates to a method and an apparatus for transmitting control and training symbols to improve transmission efficiency in a multi-user wireless communication system. The method for transmitting the control and training symbols in the multi-user wireless communication system according to one embodiment of the present invention comprises the steps of: determining whether a required transmission rate of each data can be satisfied through channel estimation in each of terminals when different data are simultaneously transmitted to each of the terminals; and transmitting a data frame to each of the terminals, the data frame being composed to discriminate the control and training symbols in each of the terminals using a combination of time, frequency, and code area when the required transmission rate of each data is not satisfied according to the determined result.
摘要翻译：本发明涉及用于发送控制和训练符号以提高多用户无线通信系统中的传输效率的方法和装置。根据本发明的一个实施例的用于在多用户无线通信系统中发送控制和训练符号的方法包括以下步骤：通过每个终端中的信道估计来确定是否可以满足每个数据的所需传输速率不同的数据同时发送到每个终端; 并且向每个终端发送数据帧，所述数据帧被构成为当不满足每个数据的所需传输速率时，使用时间，频率和代码区域的组合来区分每个终端中的控制和训练符号根据确定的结果。

70. 发明授权

US08780737B2 Apparatus and method for loop-back in wireless communication systems 失效
标题翻译：无线通信系统环回设备及方法
公开(公告)号：US08780737B2
公开(公告)日：2014-07-15
申请号：US13333656
申请日：2011-12-21
申请人： Seung-Kwon Cho , Hun-Sik Kang , Sok-Kyu Lee
发明人： Seung-Kwon Cho , Hun-Sik Kang , Sok-Kyu Lee
IPC分类号： H04L12/26 , H04W74/08 , G06F11/07
CPC分类号： H04W74/0808 , G06F11/0751 , H04L1/243
摘要： Disclosed is a loop-back apparatus in wireless communication systems, including: an MAC processing unit configured to transmit a user data and a control frame when a loop-back mode is established; a loop-back unit configured to generate a response frame of a receipt for the user data and the control message transmitted from the MAC processing unit and again feedbacks the generated response frame to the MAC processing unit.
摘要翻译：公开了一种无线通信系统中的环回装置，包括：MAC处理单元，被配置为在建立环回模式时发送用户数据和控制帧; 循环单元，被配置为生成用于所述用户数据的接收的响应帧和从所述MAC处理单元发送的所述控制消息，并且将所生成的响应帧再次反馈给所述MAC处理单元。

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