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。

公开(公告)号：US20120155289A1

公开(公告)日：2012-06-21

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

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。

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：US20110142177A1

公开(公告)日：2011-06-16

申请号：US12961745

申请日：2010-12-07

申请人： Hun-Sik Kang ,  Sok-Kyu Lee

发明人： Hun-Sik Kang ,  Sok-Kyu Lee

IPC分类号： H04L27/06

CPC分类号： H04L27/361

摘要： Provided are an apparatus and method for compensating for a delay mismatch between an amplitude component signal and a phase component signal. The apparatus includes an amplitude path delay obtainer configured to obtain amplitude-delay information on a delay occurring in a propagation path of an amplitude component signal, a phase path delay obtainer configured to obtain phase-delay information on a delay occurring in a propagation path of a phase component signal, a delay controller configured to calculate and output a difference between the obtained amplitude path delay and the obtained phase path delay, and a variable delayer configured to compensate for a delay by changing a delay value on the basis of the delay difference output from the delay controller. Using an asynchronous method, in which a signal obtained before and after a delay is used as the clock signal of a memory device and the clock signal of a register to find the delay, it is possible to reduce the complexity of the constitution and increase power efficiency.

摘要翻译： 提供了一种用于补偿振幅分量信号和相位分量信号之间的延迟失配的装置和方法。 所述装置包括：幅度路径延迟获取器，被配置为获得关于在振幅分量信号的传播路径中出现的延迟的幅度延迟信息;相位路径延迟获取器，被配置为获得关于在传播路径中发生的延迟的相位延迟信息 相位分量信号，延迟控制器，被配置为计算并输出所获得的幅度路径延迟与所获得的相位路径延迟之间的差;以及可变延迟器，被配置为通过基于延迟差改变延迟值来补偿延迟 从延迟控制器输出。 使用异步方法，其中将延迟之前和之后获得的信号用作存储器件的时钟信号和寄存器的时钟信号以找到延迟，可以降低结构的复杂性并增加功率 效率。

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：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：US08514972B2

公开(公告)日：2013-08-20

申请号：US12961745

申请日：2010-12-07

申请人： Hun-Sik Kang ,  Sok-Kyu Lee

发明人： Hun-Sik Kang ,  Sok-Kyu Lee

IPC分类号： H04L25/49

CPC分类号： H04L27/361

摘要： Provided are an apparatus and method for compensating for a delay mismatch between an amplitude component signal and a phase component signal. The apparatus includes an amplitude path delay obtainer configured to obtain amplitude-delay information on a delay occurring in a propagation path of an amplitude component signal, a phase path delay obtainer configured to obtain phase-delay information on a delay occurring in a propagation path of a phase component signal, a delay controller configured to calculate and output a difference between the obtained amplitude path delay and the obtained phase path delay, and a variable delayer configured to compensate for a delay by changing a delay value on the basis of the delay difference output from the delay controller. Using an asynchronous method, in which a signal obtained before and after a delay is used as the clock signal of a memory device and the clock signal of a register to find the delay, it is possible to reduce the complexity of the constitution and increase power efficiency.

摘要翻译： 提供了一种用于补偿振幅分量信号和相位分量信号之间的延迟失配的装置和方法。 所述装置包括：幅度路径延迟获取器，被配置为获得关于在振幅分量信号的传播路径中出现的延迟的幅度延迟信息;相位路径延迟获取器，被配置为获得关于在传播路径中发生的延迟的相位延迟信息 相位分量信号，延迟控制器，被配置为计算并输出所获得的幅度路径延迟与所获得的相位路径延迟之间的差;以及可变延迟器，被配置为通过基于延迟差改变延迟值来补偿延迟 从延迟控制器输出。 使用异步方法，其中将延迟之前和之后获得的信号用作存储器件的时钟信号和寄存器的时钟信号以找到延迟，可以降低结构的复杂性并增加功率 效率。

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：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。