公开(公告)号：US08327215B2

公开(公告)日：2012-12-04

申请号：US12208006

申请日：2008-09-10

申请人： Chanho Yoon ,  Jung-Bo Son ,  Hun-Sik Kang ,  Sok-Kyu Lee

发明人： Chanho Yoon ,  Jung-Bo Son ,  Hun-Sik Kang ,  Sok-Kyu Lee

IPC分类号： G06F11/00

CPC分类号： H03M13/1188 ,  H03M13/1111 ,  H03M13/6502

摘要： Provided is an apparatus and method for encoding a Low Density Parity Check (LDPC) code using a message passing algorithm. The apparatus, includes: a parity calculating unit for operating a check node value on an input bit and a predetermined parity bit according to the message passing algorithm and calculating a parity bit; a parity correcting unit for correcting the calculated parity bit according to a parity check result of the calculated parity bit; and an output transform unit for combining the input bit and the corrected parity bit.

摘要翻译： 提供了一种使用消息传递算法对低密度奇偶校验（LDPC）码进行编码的装置和方法。 该装置包括：奇偶校验计算单元，用于根据消息传递算法操作输入比特和预定奇偶校验位上的校验节点值，并计算奇偶校验位; 奇偶校验单元，用于根据所计算的奇偶校验位的奇偶校验结果校正所计算的奇偶校验位; 以及输出变换单元，用于组合输入位和校正奇偶校验位。

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：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：US08259878B2

公开(公告)日：2012-09-04

申请号：US12630056

申请日：2009-12-03

申请人： Chanho Yoon ,  Hun-Sik Kang ,  Eun-Young Choi ,  Sok-Kyu Lee

发明人： Chanho Yoon ,  Hun-Sik Kang ,  Eun-Young Choi ,  Sok-Kyu Lee

IPC分类号： H04L27/08

CPC分类号： H04L27/01 ,  H03G3/3052 ,  H04B7/08 ,  H04L27/08 ,  H04L2025/03426

摘要： Provided are apparatus and method for receiving signals in a wireless communication system. A receiving apparatus including a plurality of variable gain amplifier units configured to respectively control the gains of radio frequency (RF) signals received respectively through a plurality of antennas, and a plurality of analog-to-digital converters configured to respectively convert the output signals of the respective variable gain amplifiers into digital signals, includes: an automatic gain controller configured to calculate the gain values of the respective gain control amplifier units by receiving the digital signals outputted from the respective analog-to-digital converters, select the minimum gain value among the calculated gain control values, and calculate the differences between the minimum gain value and the other gain values; and a noise matching amplifier configured to attenuate the digital signals outputted from the respective analog-to-digital converters according to the calculated difference values.

摘要翻译： 提供了一种用于在无线通信系统中接收信号的装置和方法。 一种接收装置，包括：多个可变增益放大器单元，被配置为分别控制分别通过多个天线接收的射频（RF）信号的增益;多个模数转换器，被配置为分别转换 将各个可变增益放大器转换为数字信号，包括：自动增益控制器，被配置为通过接收从各个模数转换器输出的数字信号来计算各个增益控制放大器单元的增益值，选择最小增益值 计算增益控制值，并计算最小增益值与其他增益值之间的差值; 以及噪声匹配放大器，被配置为根据所计算的差值来衰减从各个模数转换器输出的数字信号。

公开(公告)号：US20100142663A1

公开(公告)日：2010-06-10

申请号：US12630056

申请日：2009-12-03

申请人： Chanho YOON ,  Hun-Sik Kang ,  Eun-Young Choi ,  Sok-Kyu Lee

发明人： Chanho YOON ,  Hun-Sik Kang ,  Eun-Young Choi ,  Sok-Kyu Lee

IPC分类号： H04L27/08

CPC分类号： H04L27/01 ,  H03G3/3052 ,  H04B7/08 ,  H04L27/08 ,  H04L2025/03426

摘要： Provided are apparatus and method for receiving signals in a wireless communication system. A receiving apparatus including a plurality of variable gain amplifier units configured to respectively control the gains of radio frequency (RF) signals received respectively through a plurality of antennas, and a plurality of analog-to-digital converters configured to respectively convert the output signals of the respective variable gain amplifiers into digital signals, includes: an automatic gain controller configured to calculate the gain values of the respective gain control amplifier units by receiving the digital signals outputted from the respective analog-to-digital converters, select the minimum gain value among the calculated gain control values, and calculate the differences between the minimum gain value and the other gain values; and a noise matching amplifier configured to attenuate the digital signals outputted from the respective analog-to-digital converters according to the calculated difference values.

摘要翻译： 提供了一种用于在无线通信系统中接收信号的装置和方法。 一种接收装置，包括：多个可变增益放大器单元，被配置为分别控制分别通过多个天线接收的射频（RF）信号的增益;多个模数转换器，被配置为分别转换 将各个可变增益放大器转换为数字信号，包括：自动增益控制器，被配置为通过接收从各个模数转换器输出的数字信号来计算各个增益控制放大器单元的增益值，选择最小增益值 计算增益控制值，并计算最小增益值与其他增益值之间的差值; 以及噪声匹配放大器，被配置为根据所计算的差值来衰减从各个模数转换器输出的数字信号。

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：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：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。