公开(公告)号：US20110096685A1

公开(公告)日：2011-04-28

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： H04L12/26 ,  H04W4/00

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.

摘要翻译： 一种在支持多传输模式的无线通信系统中自动检测分组模式的方法包括：从发送的帧中获取数据速率信息，分组长度信息和信道带宽信息中的至少一个; 以及根据在信号场信号之后发送的符号的相位旋转检查结果和从发送帧获取的数据速率信息，分组长度信息和信道带宽信息中的至少一个来确定分组模式。

公开(公告)号：US20090156148A1

公开(公告)日：2009-06-18

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： H04B17/00

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：US20110206156A1

公开(公告)日：2011-08-25

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： H04L27/18

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：US20100157893A1

公开(公告)日：2010-06-24

申请号：US12556091

申请日：2009-09-09

申请人： Il-Gu LEE ,  Yun-Joo KIM ,  Hae-Young NA ,  Sok-Kyu LEE

发明人： Il-Gu LEE ,  Yun-Joo KIM ,  Hae-Young NA ,  Sok-Kyu LEE

IPC分类号： H04W40/00 ,  G06F11/00

CPC分类号： H04L1/0007 ,  H04L1/06

摘要： Disclosed is an apparatus and method for transmitting data in a wireless communication system. The apparatus for transmitting a packet data in a wireless communication system includes a Media Access Control (MAC) layer for determining the number of the number of preambles to be inserted based on a feed-back reply signal from a receiver, and generating a multi-preamble aggregation packet by inserting the determined number of preambles into packets received from an upper layer and a physical layer for forming the multi-preamble aggregation packet generated in a data processing unit, by using a physical layer packet, and transmitting the formed multi-preamble aggregation packet.

摘要翻译： 公开了一种在无线通信系统中发送数据的装置和方法。 用于在无线通信系统中发送分组数据的装置包括：媒体接入控制（MAC）层，用于基于来自接收机的反馈应答信号来确定要插入的前导码数量的数量; 前导码聚合分组，通过使用物理层分组将确定数量的前导码插入到从上层接收的分组和用于形成在数据处理单元中生成的多前同步码聚合分组的物理层，以及发送所形成的多前导码 汇聚包。

公开(公告)号：US20090161808A1

公开(公告)日：2009-06-25

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：US20090164540A1

公开(公告)日：2009-06-25

申请号：US12146195

申请日：2008-06-25

申请人： Jong-Ee OH ,  Minho CHEONG ,  Il-Gu LEE ,  Sok-Kyu LEE

发明人： Jong-Ee OH ,  Minho CHEONG ,  Il-Gu LEE ,  Sok-Kyu LEE

IPC分类号： G06F7/38

CPC分类号： H03M13/1134 ,  H03M13/112 ,  H03M13/1122 ,  H03M13/618 ,  H03M13/6362 ,  H03M13/658 ,  H03M13/6583

摘要： Provided is an apparatus and method for updating a check node of a LDPC code at a high speed. The apparatus includes: a minimum value calculating unit for calculating a first minimum value of an input bit by sequentially calculating each bit of the first minimum value, and calculating a second minimum value using the calculated first minimum value; a node minimum value calculating unit for performing row splitting the calculated first and second minimum values by a check node and calculating a first minimum value and a second minimum value of each of the row-split nodes; and a minimum value deciding unit for deciding one of the calculated first and second minimum values of each of the row-split nodes as a minimum value corresponding to each degree of the input bit.

摘要翻译： 提供了一种用于以高速更新LDPC码的校验节点的装置和方法。 该装置包括：最小值计算单元，用于通过顺序地计算第一最小值的每个位，并使用所计算的第一最小值来计算第二最小值来计算输入比特的第一最小值; 节点最小值计算单元，用于通过校验节点执行行分解所计算的第一和第二最小值，并计算每个行分割节点的第一最小值和第二最小值; 以及最小值确定单元，用于将每个行分割节点的所计算的第一和第二最小值中的一个确定为与每个输入比特的度相对应的最小值。

公开(公告)号：US20110096760A1

公开(公告)日：2011-04-28

申请号：US12910718

申请日：2010-10-22

申请人： Il-Gu LEE ,  Jeeyon CHOI ,  Sok-Kyu LEE

发明人： Il-Gu LEE ,  Jeeyon CHOI ,  Sok-Kyu LEE

IPC分类号： H04W52/04

CPC分类号： H04W52/242 ,  H04W24/08 ,  H04W52/243 ,  H04W52/267 ,  H04W84/12 ,  Y02D70/00

摘要： A transmit power control method of a first station in a wireless LAN (WLAN) system includes: receiving path loss information from an (access point) AP, the path loss information containing a maximum value among path losses between the AP and at least one or more stations included in the WLAN system; controlling a transmit power by using the path loss information; and transmitting a frame according to the controlled transmit power. In said controlling the transmit power by using the path loss information, the transmit power is controlled by using a path loss obtained by adding the maximum value and a path loss between the first station and the AP or by using the path loss between the first station and the AP.

摘要翻译： 无线LAN（WLAN）系统中的第一站的发射功率控制方法包括：从（接入点）AP接收路径损耗信息，所述路径损耗信息包含AP与AP之间的路径损耗中的最大值， WLAN系统中包含更多的台站; 通过使用路径损耗信息来控制发射功率; 以及根据受控发射功率发送帧。 在通过使用路径损耗信息来控制发送功率时，通过使用通过将第一站和AP之间的最大值和路径损耗相加而获得的路径损耗或通过使用第一站点之间的路径损耗来获得发送功率 和AP。

公开(公告)号：US20090154608A1

公开(公告)日：2009-06-18

申请号：US12177655

申请日：2008-07-22

申请人： Chanho YOON ,  II-Gu LEE ,  Jung-Bo SON ,  Eun-Young CHOI ,  Yu-Ro LEE ,  Sok-Kyu LEE

发明人： Chanho YOON ,  II-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：US20090158121A1

公开(公告)日：2009-06-18

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： H03M13/05 ,  G06F11/07

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：US20110150148A1

公开(公告)日：2011-06-23

申请号：US12965282

申请日：2010-12-10

申请人： Jung-Bo SON ,  Eun-Young CHOI ,  Sok-Kyu LEE

发明人： Jung-Bo SON ,  Eun-Young CHOI ,  Sok-Kyu LEE

IPC分类号： H04L27/06

CPC分类号： H04L27/3863 ,  H04L5/0023 ,  H04L5/005 ,  H04L27/2647

摘要： The apparatus includes a radio frequency (RF) unit configured to arrange a plurality of symbols received through an antenna at a frequency domain, an analog to digital (AD) converter configured to converts the plurality of symbols arranged at the frequency domain to digital symbols, a fast Fourier transform (FFT) unit configured to transform the digital symbols through a fast Fourier transform scheme, a compensator configured to compensate a gain mismatch between an I-channel and a Q-channel of the transformed digital symbols, a mapping unit configured to the compensated digital symbols to a constellation diagram, and a detector configured to correlate the mapped symbols, extract correlation results, and detect a high throughput (HT) signal using the extracted correlation results.

摘要翻译： 该装置包括：射频（RF）单元，被配置为布置以频域通过天线接收的多个符号;模拟数字（AD）转换器，被配置为将在频域处布置的多个符号转换为数字符号; 被配置为通过快速傅里叶变换方案对数字符号进行变换的快速傅立叶变换（FFT）单元，配置为补偿经变换的数字符号的I信道和Q信道之间的增益失配的补偿器，配置为 将经补偿的数字符号转换成星座图，以及检测器，被配置为使所映射的符号相关，提取相关结果，并使用提取的相关结果检测高吞吐量（HT）信号。