公开(公告)号：US08265204B2

公开(公告)日：2012-09-11

申请号：US12602353

申请日：2008-05-19

申请人： Eun-Young Choi ,  Chan Ho Yoon ,  Jung Bo Son ,  Hun Sik Kang ,  Sok-Kyu Lee ,  Seok Hyun Yoon

发明人： Eun-Young Choi ,  Chan Ho Yoon ,  Jung Bo Son ,  Hun Sik Kang ,  Sok-Kyu Lee ,  Seok Hyun Yoon

IPC分类号： H04L27/06

CPC分类号： H04L1/0631 ,  H04L1/006

摘要： The present invention relates to a decoding device and method for a MIMO system. A linear process is applied to a received signal vector by using a channel matrix estimated from the received signal vector and a poly-diagonalized matrix, and a soft decision value is acquired through a trellis decode by using the linear process result. Since the linear preprocess is performed by using the poly-diagonalized matrix, it is possible to receive a MIMO signal having good packet error rate performance and less complexity. Also, since the tail-biting trellis decoding method is used based on the poly-diagonalized matrix that is generated by poly-diagonalizing the effective channel matrix during the process for eliminating the signal interference, the soft decision value for the symbol can be generated with a simple hardwired device and less operation complexity.

摘要翻译： 本发明涉及MIMO系统的解码装置和方法。 通过使用从接收信号向量和多对角化矩阵估计的信道矩阵将线性处理应用于接收信号向量，并且通过使用线性处理结果通过网格解码获取软判决值。 由于通过使用多对角化矩阵来执行线性预处理，所以可以接收具有良好的分组错误率性能和较低复杂度的MIMO信号。 另外，由于基于在消除信号干扰的处理期间通过对有效信道矩阵进行多对角化而产生的多对角化矩阵使用尾巴格状解码方法，所以可以生成符号的软判决值， 简单的硬连线设备，操作复杂度较低。

公开(公告)号：US08214717B2

公开(公告)日：2012-07-03

申请号：US12166866

申请日：2008-07-02

申请人： Jong-Ee Oh ,  Chanho Yoon ,  Cheol-Hui Ryu ,  Eun-Young Choi ,  Sok-Kyu Lee

发明人： Jong-Ee Oh ,  Chanho Yoon ,  Cheol-Hui Ryu ,  Eun-Young Choi ,  Sok-Kyu Lee

IPC分类号： H03M13/00

CPC分类号： H03M13/116 ,  H03M13/1137 ,  H03M13/1185 ,  H03M13/1188 ,  H03M13/6516

摘要： Provided is an apparatus and method for decoding a Low Density Parity Check (LDPC) code based on prototype parity check matrixes. The apparatus, includes: a parity check matrix selecting means for determining multiple prototype parity check matrixes according to a sub-matrix size and a parallelization figure for processing the parity check matrix; a bit input means for receiving a log likelihood probability value for input bit according to the sub-matrix size and the parallelization figure; a check matrix process means for sequentially performing a partial parallel process on the parity check matrix based on the received log likelihood probability value and the determined multiple prototype parity check matrixes; and a bit process means for determining a bit level based on the partial-parallel processed parity check matrix value and recovering the input bit according to the sub-matrix size and the parallelization figure.

摘要翻译： 提供了一种基于原型奇偶校验矩阵对低密度奇偶校验（LDPC）码进行解码的装置和方法。 该装置包括：奇偶校验矩阵选择装置，用于根据子矩阵大小确定多个原型奇偶校验矩阵;以及用于处理奇偶校验矩阵的并行化图; 用于根据子矩阵大小和并行化图形接收输入比特的对数似然概率值的位输入装置; 校验矩阵处理装置，用于基于所接收的对数似然概率值和所确定的多原型奇偶校验矩阵，顺序对奇偶校验矩阵执行部分并行处理; 以及位处理装置，用于基于部分并行处理的奇偶校验矩阵值确定位电平，并根据子矩阵大小和并行化图形恢复输入位。

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：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：US08718191B2

公开(公告)日：2014-05-06

申请号：US13033202

申请日：2011-02-23

申请人： Il-Gu Lee ,  In-Kyeong Choi ,  Yu-Ro Lee ,  Jong-Ee Oh ,  Eun-Young Choi ,  Sok-Kyu Lee

发明人： Il-Gu Lee ,  In-Kyeong Choi ,  Yu-Ro Lee ,  Jong-Ee Oh ,  Eun-Young Choi ,  Sok-Kyu Lee

IPC分类号： H04L27/20

CPC分类号： H04L27/18 ,  H04L27/0008

摘要： A method for transmitting, by a transmitting terminal, data to a receiving terminal in a wireless communication system includes: generating a first detection field including symbols modulated by using a BPSK data tone; generating a second detection field including symbols modulated such that an even numbered subcarrier and an odd numbered subcarrier have a phase difference of 90 degrees; generating a data packet including the first detection field, the second detection field, and the data; and transmitting the data packet.

摘要翻译： 一种在无线通信系统中由发送终端向接收终端发送数据的方法包括：生成包括通过使用BPSK数据音调调制的符号的第一检测字段; 产生包括被调制的符号的第二检测场，使得偶数副载波和奇数副载波具有90度的相位差; 生成包括第一检测区域，第二检测区域和数据的数据分组; 并发送数据包。

公开(公告)号：US08626079B2

公开(公告)日：2014-01-07

申请号：US12177605

申请日：2008-07-22

申请人： Il-Gu Lee ,  Chanho Yoon ,  Eun-Young Choi ,  Hun-Sik Kang ,  Minho Cheong ,  Sok-Kyu Lee

发明人： Il-Gu Lee ,  Chanho Yoon ,  Eun-Young Choi ,  Hun-Sik Kang ,  Minho Cheong ,  Sok-Kyu Lee

IPC分类号： H04B1/00 ,  H04B7/00

CPC分类号： H04L1/0003 ,  H04B17/318

摘要： Provided is a link adaptation method and apparatus in wireless communication system. The method, includes: amplifying a received signal; converting the amplified signal into a digital signal; calculating digital signal strength; and calculating the received signal strength based on the digital signal strength and a gain of said amplifying a received signal.

摘要翻译： 提供了一种无线通信系统中的链路适配方法和装置。 该方法包括：放大接收信号; 将放大的信号转换成数字信号; 计算数字信号强度; 以及基于所述数字信号强度和所述放大接收信号的增益来计算接收信号强度。

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：US08582418B2

公开(公告)日：2013-11-12

申请号：US12912666

申请日：2010-10-26

申请人： Il-Gu Lee ,  Eun-Young Choi ,  Sok-Kyu Lee

发明人： Il-Gu Lee ,  Eun-Young Choi ,  Sok-Kyu Lee

IPC分类号： H04J9/00 ,  H04B7/208 ,  H04B7/216 ,  H04B7/12

CPC分类号： H04L27/2601 ,  H04L5/0048 ,  H04L27/0012 ,  H04L27/22 ,  H04L27/2273 ,  H04L27/3444 ,  H04W72/042 ,  H04W84/12

摘要： A method for automatically detecting a packet mode in a wireless communication system supporting a multiple transmission mode includes: acquiring at least one of data rate information, packet length information and channel bandwidth information from a transmitted frame; and determining the packet mode on the basis of the phase rotation check result of a symbol transmitted after a signal field signal and at least one of the data rate information, the packet length information and the channel bandwidth information acquired from the transmitted frame.

公开(公告)号：US08259878B2

公开(公告)日：2012-09-04

申请号：US12630056

申请日：2009-12-03

申请人： Chanho Yoon ,  Hun-Sik Kang ,  Eun-Young Choi ,  Sok-Kyu Lee

发明人： Chanho Yoon ,  Hun-Sik Kang ,  Eun-Young Choi ,  Sok-Kyu Lee

IPC分类号： H04L27/08

CPC分类号： H04L27/01 ,  H03G3/3052 ,  H04B7/08 ,  H04L27/08 ,  H04L2025/03426

摘要： Provided are apparatus and method for receiving signals in a wireless communication system. A receiving apparatus including a plurality of variable gain amplifier units configured to respectively control the gains of radio frequency (RF) signals received respectively through a plurality of antennas, and a plurality of analog-to-digital converters configured to respectively convert the output signals of the respective variable gain amplifiers into digital signals, includes: an automatic gain controller configured to calculate the gain values of the respective gain control amplifier units by receiving the digital signals outputted from the respective analog-to-digital converters, select the minimum gain value among the calculated gain control values, and calculate the differences between the minimum gain value and the other gain values; and a noise matching amplifier configured to attenuate the digital signals outputted from the respective analog-to-digital converters according to the calculated difference values.

摘要翻译： 提供了一种用于在无线通信系统中接收信号的装置和方法。 一种接收装置，包括：多个可变增益放大器单元，被配置为分别控制分别通过多个天线接收的射频（RF）信号的增益;多个模数转换器，被配置为分别转换 将各个可变增益放大器转换为数字信号，包括：自动增益控制器，被配置为通过接收从各个模数转换器输出的数字信号来计算各个增益控制放大器单元的增益值，选择最小增益值 计算增益控制值，并计算最小增益值与其他增益值之间的差值; 以及噪声匹配放大器，被配置为根据所计算的差值来衰减从各个模数转换器输出的数字信号。

公开(公告)号：US20100189200A1

公开(公告)日：2010-07-29

申请号：US12602353

申请日：2008-05-19

申请人： Eun-Young Choi ,  Chan Ho Yoon ,  Jung Bo Son ,  Hun Sik Kang ,  Sok-Kyu Lee ,  Seok Hyun Yoon

发明人： Eun-Young Choi ,  Chan Ho Yoon ,  Jung Bo Son ,  Hun Sik Kang ,  Sok-Kyu Lee ,  Seok Hyun Yoon

IPC分类号： H04L27/06

CPC分类号： H04L1/0631 ,  H04L1/006

摘要： The present invention relates to a decoding device and method for a MIMO system. A linear process is applied to a received signal vector by using a channel matrix estimated from the received signal vector and a poly-diagonalized matrix, and a soft decision value is acquired through a trellis decode by using the linear process result. Since the linear preprocess is performed by using the poly-diagonalized matrix, it is possible to receive a MIMO signal having good packet error rate performance and less complexity. Also, since the tail-biting trellis decoding method is used based on the poly-diagonalized matrix that is generated by poly-diagonalizing the effective channel matrix during the process for eliminating the signal interference, the soft decision value for the symbol can be generated with a simple hardwired device and less operation complexity.

摘要翻译： 本发明涉及MIMO系统的解码装置和方法。 通过使用从接收信号向量和多对角化矩阵估计的信道矩阵将线性处理应用于接收信号向量，并且通过使用线性处理结果通过网格解码获取软判决值。 由于通过使用多对角化矩阵来执行线性预处理，所以可以接收具有良好的分组错误率性能和较低复杂度的MIMO信号。 另外，由于基于在消除信号干扰的处理期间通过对有效信道矩阵进行多对角化而产生的多对角化矩阵使用尾巴格状解码方法，所以可以生成符号的软判决值， 简单的硬连线设备，操作复杂度较低。