公开(公告)号：US08554148B2

公开(公告)日：2013-10-08

申请号：US12884591

申请日：2010-09-17

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： H04B15/00

CPC分类号： H04L7/041 ,  H04L1/0003 ,  H04L1/0007 ,  H04L1/0009 ,  H04L1/1607

摘要： Provided are apparatus and method for transmitting and receiving data for a wireless communication system. The method includes generating a first aggregation packet by controlling the number of preambles or by controlling a size of a packet according to a channel state of a channel formed to at least one reception terminal or according to a state of the reception terminal, and transmitting the first aggregation packet to the reception terminal.

摘要翻译： 提供了一种用于无线通信系统的发送和接收数据的装置和方法。 该方法包括：通过控制前导码的数量或根据形成于至少一个接收终端的信道的信道状态或根据接收终端的状态来控制分组的大小来生成第一聚合分组，并且发送 第一聚合分组到接收终端。

公开(公告)号：US08422465B2

公开(公告)日：2013-04-16

申请号：US12241921

申请日：2008-09-30

申请人： Il-Gu Lee ,  Hun-Sik Kang ,  Minho Cheong ,  Yoo-Seung Song ,  Sok-Kyu Lee

发明人： Il-Gu Lee ,  Hun-Sik Kang ,  Minho Cheong ,  Yoo-Seung Song ,  Sok-Kyu Lee

IPC分类号： H04B7/216 ,  H04B1/38

CPC分类号： H04B7/04 ,  H04L27/2626 ,  H04L27/2647 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/2675

摘要： Provided are a transmitter and receiver for a high throughput wireless communication system using a multiple antenna, a method thereof, and a digital intermediate frequency (DIF) transmission signal processing method for the same. The transmitter, includes: a baseband transmitting unit for processing a transmission signal by performing a Media Access Control (MAC) protocol process on transmission data and dividing the transmission data into n band signals where n is a predetermined natural number in a physical layer process; a DIF transmitting unit for integrating transmission signals of each band transmitted from the baseband transmitting unit and outputting m channels where m is a predetermined natural number; and a Radio Frequency (RF) transmitting unit for modulating each channel signal transmitted from the DIF transmitting unit into an RF signal and emitting the signal through the multiple antenna.

摘要翻译： 提供一种用于使用多天线的高吞吐量无线通信系统的发射机和接收机，其方法和用于其的数字中频（DIF）传输信号处理方法。 发射机包括：基带发射单元，用于通过在传输数据上执行媒体访问控制（MAC）协议处理来处理传输信号，并且在物理层处理中将传输数据划分成n个频带信号，其中n是预定的自然数; DIF发送单元，用于对从基带发送单元发送的每个频带的发送信号进行积分，并输出m个信道，其中m是预定的自然数; 以及射频（RF）发送单元，用于将从DIF发送单元发送的每个信道信号调制成RF信号，并通过多个天线发送信号。

公开(公告)号：US08265564B2

公开(公告)日：2012-09-11

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： H04B15/00

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 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的数量，并且生成多前同步码聚合分组 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，并发送形成的多前同步码聚合分组。

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：US20110149724A1

公开(公告)日：2011-06-23

申请号：US12969357

申请日：2010-12-15

申请人： Il-Gu LEE ,  Sok-Kyu Lee

发明人： Il-Gu LEE ,  Sok-Kyu Lee

IPC分类号： H04L12/26

CPC分类号： H04L27/2657 ,  H04L27/2688 ,  H04L41/0654

摘要： Provided is an apparatus and method for transmitting and receiving data. The method includes respectively estimating a carrier frequency offset (CFO) of data packets transmitted during a transmit opportunity (TXOP) period by a unit of a packet; calculating an average CFO of the estimated CFOs estimated during a window period for the data packets; and compensating an estimated CFO of a predetermined data packet to one of the estimated CFO of the predetermined data packet and the average CFO, and restoring the predetermined data packet.

摘要翻译： 提供了一种用于发送和接收数据的装置和方法。 该方法包括分别估计在发送机会（TXOP）周期期间以分组为单位发送的数据分组的载波频率偏移（CFO）; 计算在数据包的窗口期间估计的估计的首席财务官的平均CFO; 以及将预定数据分组的估计CFO补偿到预定数据分组的估计CFO和平均CFO之一，并恢复预定数据分组。

公开(公告)号：US07839760B2

公开(公告)日：2010-11-23

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： H04J9/00

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. A first OFDM modulation is performed for an even-numbered time, and a second OFDM modulation is performed for an odd-numbered time. A transmitting frame including a plurality of signal fields according to the first and second OFDM modulation is transmitted. The receiving system determines whether a signal field is repeatedly generated in the frame. If the signal field is not repeatedly generated, corresponding demodulation is performed. If repeatedly performed, the signal field is demodulated by using first bit allocation information and second bit allocation information having a ½ 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。 对偶数时间执行第一OFDM调制，并且对奇数时间执行第二OFDM调制。 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。 接收系统确定在帧中是否重复产生信号字段。 如果不重复产生信号场，则执行相应的解调。 如果重复执行，则通过使用第一比特分配信息和具有第一比特分配信息的1/2值的第二比特分配信息来解调信号字段。 根据解调信号字段对数据字段进行解调。

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：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：US09226323B2

公开(公告)日：2015-12-29

申请号：US13351205

申请日：2012-01-16

申请人： Heejung Yu ,  Il Gu Lee ,  Hun Sik Kang ,  Sok Kyu Lee

发明人： Heejung Yu ,  Il Gu Lee ,  Hun Sik Kang ,  Sok Kyu Lee

IPC分类号： H04W76/02 ,  H04W74/08 ,  H04W84/04 ,  H04W84/12 ,  H04W88/04

CPC分类号： H04W76/02 ,  H04W74/0816 ,  H04W76/10 ,  H04W84/047 ,  H04W84/12 ,  H04W88/04

摘要： A method and apparatus for transmitting a relay frame in a relay end are provided. The method includes: receiving a relay request frame requesting data transmission to a receive end from a transmit end; transmitting a relay response frame including information on data to be relayed to each of the transmit end and the receive end; receiving the data from the transmit end; and generating a relay frame including the data to transmit the relay frame to the receive end. According to the present invention, the data is transmitted to the receive end positioned outside a transmission coverage of the transmit end, such that a wireless LAN service coverage may be expanded, and an adjacent terminal connected to the receive end is used as the relay end, such that the transmit end that may not be connected directly to the receive end may communicate with the receive end.

摘要翻译： 提供了一种用于在继电器端中发送中继帧的方法和装置。 该方法包括：从发送端接收请求数据发送到接收端的中继请求帧; 发送包括关于要中继的数据的信息的中继响应帧到发送端和接收端中的每一个; 从发送端接收数据; 以及生成包括所述数据的中继帧，以将所述中继帧发送到所述接收端。 根据本发明，将数据发送到位于发送端的发送覆盖范围之外的接收端，使得可以扩展无线LAN服务覆盖，并且将连接到接收端的相邻终端用作中继端 ，使得可以不直接连接到接收端的发送端可以与接收端通信。