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：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：US20110069670A1

公开(公告)日：2011-03-24

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： H04L12/413 ,  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。

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：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：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：US20110069648A1

公开(公告)日：2011-03-24

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： H04J3/22 ,  H04B7/00

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：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。

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。

公开(公告)号：US08780737B2

公开(公告)日：2014-07-15

申请号：US13333656

申请日：2011-12-21

申请人： Seung-Kwon Cho ,  Hun-Sik Kang ,  Sok-Kyu Lee

发明人： Seung-Kwon Cho ,  Hun-Sik Kang ,  Sok-Kyu Lee

IPC分类号： H04L12/26 ,  H04W74/08 ,  G06F11/07

CPC分类号： H04W74/0808 ,  G06F11/0751 ,  H04L1/243

摘要： Disclosed is a loop-back apparatus in wireless communication systems, including: an MAC processing unit configured to transmit a user data and a control frame when a loop-back mode is established; a loop-back unit configured to generate a response frame of a receipt for the user data and the control message transmitted from the MAC processing unit and again feedbacks the generated response frame to the MAC processing unit.

摘要翻译： 公开了一种无线通信系统中的环回装置，包括：MAC处理单元，被配置为在建立环回模式时发送用户数据和控制帧; 循环单元，被配置为生成用于所述用户数据的接收的响应帧和从所述MAC处理单元发送的所述控制消息，并且将所生成的响应帧再次反馈给所述MAC处理单元。