公开(公告)号：US08327215B2

公开(公告)日：2012-12-04

申请号：US12208006

申请日：2008-09-10

申请人： Chanho Yoon ,  Jung-Bo Son ,  Hun-Sik Kang ,  Sok-Kyu Lee

发明人： Chanho Yoon ,  Jung-Bo Son ,  Hun-Sik Kang ,  Sok-Kyu Lee

IPC分类号： G06F11/00

CPC分类号： H03M13/1188 ,  H03M13/1111 ,  H03M13/6502

摘要： Provided is an apparatus and method for encoding a Low Density Parity Check (LDPC) code using a message passing algorithm. The apparatus, includes: a parity calculating unit for operating a check node value on an input bit and a predetermined parity bit according to the message passing algorithm and calculating a parity bit; a parity correcting unit for correcting the calculated parity bit according to a parity check result of the calculated parity bit; and an output transform unit for combining the input bit and the corrected parity bit.

摘要翻译： 提供了一种使用消息传递算法对低密度奇偶校验（LDPC）码进行编码的装置和方法。 该装置包括：奇偶校验计算单元，用于根据消息传递算法操作输入比特和预定奇偶校验位上的校验节点值，并计算奇偶校验位; 奇偶校验单元，用于根据所计算的奇偶校验位的奇偶校验结果校正所计算的奇偶校验位; 以及输出变换单元，用于组合输入位和校正奇偶校验位。

公开(公告)号：US08817921B2

公开(公告)日：2014-08-26

申请号：US12965333

申请日：2010-12-10

申请人： Il-Gu Lee ,  Eun-Young Choi ,  Jung-Bo Son ,  Hun-Sik Kang ,  Sok-Kyu Lee

发明人： Il-Gu Lee ,  Eun-Young Choi ,  Jung-Bo Son ,  Hun-Sik Kang ,  Sok-Kyu Lee

IPC分类号： H04L27/14 ,  H04L27/26

CPC分类号： H04L27/2656 ,  H04L5/0023 ,  H04L27/2657 ,  H04L27/2675 ,  H04L27/2678 ,  H04L27/2688

摘要： An apparatus for detecting a packet end point in a wireless communication system includes: a signal reception unit configured to receive a signal from an outside, convert the signal into a baseband signal, perform analog-digital conversion of the baseband signal, and perform a digital front end; a storage unit configured to store an output of the signal reception unit; a frequency offset estimation unit configured to estimate a frequency offset using the output of the storage unit; a frequency offset correction unit configured to compensate for a frequency error using the estimated frequency offset; an offset correlation unit configured to calculate correlation of the frequency offset and a cyclic prefix; an auto-correlation operation unit configured to calculate auto-correlation of the cyclic prefix; and a packet end detection unit configured to check a packet end point using the auto-correlation.

摘要翻译： 一种用于在无线通信系统中检测分组终点的装置包括：信号接收单元，被配置为从外部接收信号，将该信号转换为基带信号，执行基带信号的模数转换，并执行数字 前端; 存储单元，被配置为存储所述信号接收单元的输出; 频率偏移估计单元，被配置为使用所述存储单元的输出来估计频率偏移; 频率偏移校正单元，被配置为使用所估计的频率偏移来补偿频率误差; 偏移相关单元，被配置为计算所述频率偏移和循环前缀的相关性; 自相关操作单元，被配置为计算所述循环前缀的自相关; 以及分组结束检测单元，被配置为使用所述自相关来检查分组结束点。

公开(公告)号：US20110150149A1

公开(公告)日：2011-06-23

申请号：US12965333

申请日：2010-12-10

申请人： Il-Gu Lee ,  Eun-Young Choi ,  Jung-Bo Son ,  Hun-Sik Kang ,  Sok-Kyu Lee

发明人： Il-Gu Lee ,  Eun-Young Choi ,  Jung-Bo Son ,  Hun-Sik Kang ,  Sok-Kyu Lee

IPC分类号： H04L27/00

CPC分类号： H04L27/2656 ,  H04L5/0023 ,  H04L27/2657 ,  H04L27/2675 ,  H04L27/2678 ,  H04L27/2688

摘要： An apparatus for detecting a packet end point in a wireless communication system includes: a signal reception unit configured to receive a signal from an outside, convert the signal into a baseband signal, perform analog-digital conversion of the baseband signal, and perform a digital front end; a storage unit configured to store an output of the signal reception unit; a frequency offset estimation unit configured to estimate a frequency offset using the output of the storage unit; a frequency offset correction unit configured to compensate for a frequency error using the estimated frequency offset; an offset correlation unit configured to calculate correlation of the frequency offset and a cyclic prefix; an auto-correlation operation unit configured to calculate auto-correlation of the cyclic prefix; and a packet end detection unit configured to check a packet end point using the auto-correlation.

摘要翻译： 一种用于在无线通信系统中检测分组终点的装置包括：信号接收单元，被配置为从外部接收信号，将该信号转换为基带信号，执行基带信号的模数转换，并执行数字 前端; 存储单元，被配置为存储所述信号接收单元的输出; 频率偏移估计单元，被配置为使用所述存储单元的输出来估计频率偏移; 频率偏移校正单元，被配置为使用所估计的频率偏移来补偿频率误差; 偏移相关单元，被配置为计算所述频率偏移和循环前缀的相关性; 自相关操作单元，被配置为计算所述循环前缀的自相关; 以及分组结束检测单元，被配置为使用所述自相关来检查分组结束点。

公开(公告)号：US08295195B2

公开(公告)日：2012-10-23

申请号：US12642167

申请日：2009-12-18

申请人： Chanho Yoon ,  Il-Gu Lee ,  Jung-Bo Son ,  Sok-Kyu Lee

发明人： Chanho Yoon ,  Il-Gu Lee ,  Jung-Bo Son ,  Sok-Kyu Lee

IPC分类号： H04L12/26 ,  H04J3/16

CPC分类号： H04L1/0038 ,  H04L5/0007 ,  H04L27/0012 ,  H04L27/2666

摘要： A frame format discrimination method in a wireless communication system is provided. The frame format discrimination method includes: calculating a power of an in-phase signal and a power of a quadrature signal in a predetermined section of a frame; comparing the power of the in-phase signal with the power of the quadrature signal; and determining the format of the frame in accordance with the comparison result.

摘要翻译： 提供了一种无线通信系统中的帧格式辨别方法。 帧格式识别方法包括：在帧的预定部分中计算同相信号的功率和正交信号的功率; 将同相信号的功率与正交信号的功率进行比较; 以及根据比较结果确定帧的格式。

公开(公告)号：US20100157832A1

公开(公告)日：2010-06-24

申请号：US12642167

申请日：2009-12-18

申请人： Chanho Yoon ,  II-Gu Lee ,  Jung-Bo Son ,  Sok-Kyu Lee

发明人： Chanho Yoon ,  II-Gu Lee ,  Jung-Bo Son ,  Sok-Kyu Lee

IPC分类号： H04L12/26

CPC分类号： H04L1/0038 ,  H04L5/0007 ,  H04L27/0012 ,  H04L27/2666

摘要： A frame format discrimination method in a wireless communication system is provided. The frame format discrimination method includes: calculating a power of an in-phase signal and a power of a quadrature signal in a predetermined section of a frame; comparing the power of the in-phase signal with the power of the quadrature signal; and determining the format of the frame in accordance with the comparison result.

摘要翻译： 提供了一种无线通信系统中的帧格式辨别方法。 帧格式识别方法包括：在帧的预定部分中计算同相信号的功率和正交信号的功率; 将同相信号的功率与正交信号的功率进行比较; 以及根据比较结果确定帧的格式。

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：US20070133446A1

公开(公告)日：2007-06-14

申请号：US11636448

申请日：2006-12-11

申请人： Chan-Ho Yoon ,  Hee-Jung Yu ,  Eun-Young Choi ,  Jung-Bo Son ,  Il-Gu Lee ,  Deuk-Su Lyu ,  Tae-hyun Jeon ,  Seung-Wook Min ,  Kwhang-Hyun Ryu ,  Kyoung-Ju Noh ,  Yun-Joo Kim ,  Kyoung-Hee Song ,  Sok-Kyu Lee ,  Seung-chan Bang ,  Seung-Ku Hwang

发明人： Chan-Ho Yoon ,  Hee-Jung Yu ,  Eun-Young Choi ,  Jung-Bo Son ,  Il-Gu Lee ,  Deuk-Su Lyu ,  Tae-hyun Jeon ,  Seung-Wook Min ,  Kwhang-Hyun Ryu ,  Kyoung-Ju Noh ,  Yun-Joo Kim ,  Kyoung-Hee Song ,  Sok-Kyu Lee ,  Seung-chan Bang ,  Seung-Ku Hwang

IPC分类号： H04B7/00

CPC分类号： H04L1/0026 ,  H04L1/0003 ,  H04L1/0059 ,  H04L1/0075 ,  H04L1/08 ,  H04L1/188

摘要： The present invention relates to a transmitting apparatus of a wireless communication system, and a method thereof. The transmitting apparatus monitors receiving of response data for data that has been transmitted to a receiving end, and sets a first parameter for counting successful receipts according to receiving on the response data. The transmitting apparatus demodulates the response data and extracts the number of demodulated data that satisfies a first set value. Subsequently, it is determined whether the first parameter satisfies a second set value and the number of demodulated data satisfies a predetermined ratio of a referential amount of packets. According to the present invention, an efficient transmission mode for a channel state can be provided with reference to an extracted number of soft-decision data from response data received at a receiving end. In addition, a transmission mode can be determined by using only response data according to the present invention.

摘要翻译： 无线通信系统的发送装置技术领域本发明涉及无线通信系统的发送装置及其方法。 发送装置监视已经发送到接收端的数据的响应数据的接收，并且根据对响应数据的接收，设置用于计数成功收据的第一参数。 发送装置解调响应数据，并提取满足第一设定值的解调数据的数量。 随后，确定第一参数是否满足第二设定值，并且解调数据的数量满足分组的参考量的预定比率。 根据本发明，可以参照从接收端接收到的响应数据提取的软判决数据数来提供用于信道状态的有效传输模式。 此外，可以通过仅使用根据本发明的响应数据来确定传输模式。

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。

公开(公告)号：US08811537B2

公开(公告)日：2014-08-19

申请号：US12629454

申请日：2009-12-02

申请人： Il-Gu Lee ,  Jung-Bo Son ,  Je-Hun Lee ,  Eun-Young Choi ,  Sok-Kyu Lee

发明人： Il-Gu Lee ,  Jung-Bo Son ,  Je-Hun Lee ,  Eun-Young Choi ,  Sok-Kyu Lee

IPC分类号： H04L25/06

CPC分类号： H04B1/1036 ,  H04L25/03038 ,  H04L25/03305 ,  H04L27/2647 ,  H04L27/2655 ,  H04L27/2657 ,  H04L2025/03414 ,  H04L2025/0342 ,  H04L2025/03426

摘要： Provided are a receiving apparatus and method for a wireless communication system using multiple antennas. A receiving method for a wireless communication system using multiple paths, the receiving method comprising: receiving signals through a predetermined number of multiple paths; sensing a carrier according to saturation state degrees of the signals, and providing saturation state information; calculating automatic gain components of the received signals by using the received signals and the saturation state information of the received signals; and performing a noise matching process to amplify noises on the predetermined multiple paths according to the automatic gain components during a predetermined period.

摘要翻译： 提供一种使用多个天线的无线通信系统的接收装置和方法。 一种使用多个路径的无线通信系统的接收方法，所述接收方法包括：通过预定数量的多个路径接收信号; 根据信号的饱和状态度感测载波，并提供饱和状态信息; 通过使用接收信号和接收信号的饱和状态信息来计算接收信号的自动增益分量; 以及执行噪声匹配处理，以在预定周期内根据所述自动增益分量来放大所述预定多个路径上的噪声。

公开(公告)号：US07676208B2

公开(公告)日：2010-03-09

申请号：US11636201

申请日：2006-12-08

申请人： Il-Gu Lee ,  Sok-Kyu Lee ,  Hee-jung Yu ,  Eun-Young Choi ,  Chan-Ho Yoon ,  Jung-Bo Son ,  Deuk-Su Lyu ,  Seung-Wook Min ,  Tae-hyun Jeon ,  Seung-Chan Bang ,  Seung-Ku Hwang

发明人： Il-Gu Lee ,  Sok-Kyu Lee ,  Hee-jung Yu ,  Eun-Young Choi ,  Chan-Ho Yoon ,  Jung-Bo Son ,  Deuk-Su Lyu ,  Seung-Wook Min ,  Tae-hyun Jeon ,  Seung-Chan Bang ,  Seung-Ku Hwang

IPC分类号： H04B1/06 ,  H04Q7/20

CPC分类号： H04W52/52

摘要： An exemplary automatic gain control device includes: a radio frequency receiver for receiving a plurality of first signals through a plurality of antennas, respectively controlling gains of the plurality of first received signals, and outputting the plurality of the first signals having the controlled gain as a plurality of second signals; a signal saturation detecting unit for outputting a saturation index determination value when the number of plurality of second signals that are greater than a threshold value is greater than a predetermined number; and a gain controlling unit for comparing power values of the plurality of second signals to detect one power value, and outputting a gain value determined based on a detected power value and a saturation index determination value to the radio frequency receiver.

摘要翻译： 示例性的自动增益控制装置包括：射频接收器，用于通过多个天线接收多个第一信号，分别控制多个第一接收信号的增益，并将具有受控增益的多个第一信号作为 多个第二信号; 信号饱和检测单元，当大于阈值的多个第二信号的数量大于预定数量时，输出饱和度指标确定值; 以及增益控制单元，用于对所述多个第二信号的功率值进行比较，以检测一个功率值，并将基于检测到的功率值和饱和度指标确定值确定的增益值输出到所述射频接收器。