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1. 发明授权

US08626079B2 Link adaptation method and apparatus in wireless communication system 失效
标题翻译：无线通信系统中的链路自适应方法和装置
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。

2. 发明授权

US08422465B2 Transmitter and receiver for high throughput wireless communication system using multiple antenna, method thereof, and digital intermediate frequency transmission signal processing method for the same 有权
标题翻译：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，其方法和数字中频传输信号处理方法相同
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。

3. 发明授权

US08817921B2 Apparatus and method for detecting packet end point in wireless communication system 有权
标题翻译：无线通信系统中的分组终点检测装置及方法
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。

4. 发明申请

US20110150149A1 APPARATUS AND METHOD FOR DETECTING PACKET END POINT IN WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：在无线通信系统中检测分组端点的装置和方法
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。

5. 发明授权

US08107563B2 Receiving apparatus and method for MIMO system 有权
标题翻译： MIMO系统的接收装置和方法
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。

6. 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。

7. 发明授权

US08554148B2 Data transmission/reception apparatus and method for wireless communication system 有权
标题翻译：无线通信系统的数据发送接收装置及方法
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。

8. 发明授权

US08649324B2 Data transmission apparatus and method in wireless communication system 失效
标题翻译：无线通信系统中的数据传输装置和方法
公开(公告)号：US08649324B2
公开(公告)日：2014-02-11
申请号：US12884625
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： H04W4/00
CPC分类号： H04W74/0816
摘要： A data communication method in a basic service set (BSS) of a wireless communication system using a carrier sense multiple access with collision avoidance (CSMA/CA) protocol includes: performing, by first and second nodes within the BSS, communication within a predetermined first time period; and transmitting, by a third node within the BSS, data to a fourth node within the first time period through a channel which is not used by the other nodes.
摘要翻译：使用具有冲突避免的载波侦听多路访问（CSMA / CA）协议的无线通信系统的基本服务集（BSS）中的数据通信方法包括：由BSS内的第一和第二节点执行预定的第一时间段; 以及由所述BSS内的第三节点通过未被其他节点使用的信道在第一时间段内向第四节点发送数据。

9. 发明申请

US20120195302A1 METHOD AND APPARATUS FOR TRANSCEIVING DATA IN A MIMO SYSTEM 有权
标题翻译：用于在MIMO系统中收发数据的方法和装置
公开(公告)号：US20120195302A1
公开(公告)日：2012-08-02
申请号：US13443635
申请日：2012-04-10
申请人： Jaewoo PARK , Jong-Ee Oh , Il-Gu Lee , Sok-kyu Lee , Minho Cheong , Jeeyon Choi , Jae-Seung Lee , Yun-Joo Kim
发明人： Jaewoo PARK , Jong-Ee Oh , Il-Gu Lee , Sok-kyu Lee , Minho Cheong , Jeeyon Choi , Jae-Seung Lee , Yun-Joo Kim
IPC分类号： H04L1/00 , H04W84/12
CPC分类号： H04B7/0452 , H04B7/0413 , H04L1/0003 , H04L1/0061 , H04L1/0072 , H04L1/0075 , H04L1/0083 , H04L1/08 , H04L27/18 , H04L27/20 , H04L69/22 , H04L69/323 , H04Q2213/13215 , H04W84/12
摘要： The present invention relates to a method and apparatus for transceiving data. A method in which a transmitting terminal transmits data to a receiving terminal in a MIMO system according to one embodiment of the present invention comprises the following steps: generating a data field containing the data; generating a signal field containing information on the data field; generating a data frame containing the data field and the signal field; and transmitting the data frame to the receiving terminal. According to the present invention, an end of the frame being transmitted is accurately notified to the receiving terminal in a communication system in which the frame is transmitted using MIMO, thereby decoding the frame in a more efficient manner at the receiving terminal.
摘要翻译：本发明涉及用于收发数据的方法和装置。根据本发明的一个实施例的发送终端向MIMO系统中的接收终端发送数据的方法包括以下步骤：产生包含数据的数据字段; 生成包含关于数据字段的信息的信号字段; 生成包含数据字段和信号字段的数据帧; 并将数据帧发送到接收终端。根据本发明，在使用MIMO发送帧的通信系统中，正在发送的帧的结束被准确地通知给接收终端，从而在接收终端以更有效的方式对帧进行解码。

10. 发明授权

US08422474B2 Method and apparatus for transceiving data in a MIMO system 有权
公开(公告)号：US08422474B2
公开(公告)日：2013-04-16
申请号：US13443635
申请日：2012-04-10
申请人： Jaewoo Park , Jong-Ee Oh , Il-Gu Lee , Sok-Kyu Lee , Minho Cheong , Jeeyon Choi , Jae-Seung Lee , Yun-Joo Kim
发明人： Jaewoo Park , Jong-Ee Oh , Il-Gu Lee , Sok-Kyu Lee , Minho Cheong , Jeeyon Choi , Jae-Seung Lee , Yun-Joo Kim
IPC分类号： H04W4/00
CPC分类号： H04B7/0452 , H04B7/0413 , H04L1/0003 , H04L1/0061 , H04L1/0072 , H04L1/0075 , H04L1/0083 , H04L1/08 , H04L27/18 , H04L27/20 , H04L69/22 , H04L69/323 , H04Q2213/13215 , H04W84/12
摘要： The present invention relates to a method and apparatus for transceiving data. A method in which a transmitting terminal transmits data to a receiving terminal in a MIMO system according to one embodiment of the present invention comprises the following steps: generating a data field containing the data; generating a signal field containing information on the data field; generating a data frame containing the data field and the signal field; and transmitting the data frame to the receiving terminal. According to the present invention, an end of the frame being transmitted is accurately notified to the receiving terminal in a communication system in which the frame is transmitted using MIMO, thereby decoding the frame in a more efficient manner at the receiving terminal.

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