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：US08761139B2

公开(公告)日：2014-06-24

申请号：US13336869

申请日：2011-12-23

申请人： Minho Cheong ,  Sok-Kyu Lee

发明人： Minho Cheong ,  Sok-Kyu Lee

IPC分类号： H04W4/00

CPC分类号： H04W48/16 ,  H04W48/20

摘要： Disclosed are an apparatus and a method for supporting access for a multi user to perform communication through a multi node by efficiently using a multi channel in a communication system of a multi user environment having the multi node, in which bands usable by STAs that intend to access an access point are searched in a multi channel; a transmission band for packet transmission is determined in the searched usable bands; and access to the access point is supported through the determined transmission band, and the transmission band is determined by performing ad-hoc through an ad-hoc media access control (MAC) protocol in the searched usable bands.

摘要翻译： 公开了一种用于支持多用户的访问以通过在具有多个节点的多用户环境的通信系统中有效地使用多信道来通过多节点执行通信的装置和方法，其中可用于STA的可用频带 在多频道中搜索接入点; 在所搜索的可用频带中确定分组传输的传输频带; 并且通过确定的传输频带来支持对接入点的接入，并且通过在所搜索的可用频带中的自组织媒体接入控制（MAC）协议来执行ad-hoc来确定传输频带。

公开(公告)号：US20100150281A1

公开(公告)日：2010-06-17

申请号：US12633919

申请日：2009-12-09

申请人： Yu-Ro LEE ,  Minho Cheong ,  Jong-Eo Oh ,  Jeevon Choi ,  Sok-Kyu Lee

发明人： Yu-Ro LEE ,  Minho Cheong ,  Jong-Eo Oh ,  Jeevon Choi ,  Sok-Kyu Lee

IPC分类号： H04L27/06

CPC分类号： H04L25/067 ,  H04L25/03006 ,  H04L2025/03426

摘要： Provided are an apparatus and method for reception in a MIMO system. An apparatus for calculating a signal weight, includes: at least two multiplexers configured to receive, a data stream corresponding to a weight inputted and multiplex the received data stream prior to output; a multiplexing control unit configured to control the outputs of the respective multiplexers and provide a clock of a predetermined rate and a clock of a double rate two times higher than the predetermined rate; a first multiplier configured to receive multiplexed data outputted from the respective multiplexers and multiply the multiplexed data; a first storage unit configured to latch the multiplication result of the first multiplier by the double-rate clock prior to output; an adder configured to add the output of the first storage unit and the output of the first multiplier; and a second storage unit configured to latch the addition.

摘要翻译： 提供了一种用于MIMO系统中的接收的装置和方法。 一种用于计算信号权重的装置，包括：至少两个多路复用器，被配置为在输出之前接收与所输入的权重相对应的数据流并对所接收的数据流进行多路复用; 复用控制单元，被配置为控制各个多路复用器的输出，并提供预定速率的时钟和比预定速率高两倍的双倍速率的时钟; 第一乘法器，被配置为接收从各个多路复用器输出的多路复用数据并乘以多路复用数据; 第一存储单元，被配置为在输出之前将所述第一乘法器的乘法结果锁存为双速率时钟; 加法器，被配置为将第一存储单元的输出和第一乘法器的输出相加; 以及第二存储单元，被配置为锁存所述相加。

公开(公告)号：US08068560B2

公开(公告)日：2011-11-29

申请号：US12139904

申请日：2008-06-16

申请人： Yu-Ro Lee ,  Jung-Bo Son ,  Minho Cheong ,  Sok-Kyu Lee

发明人： Yu-Ro Lee ,  Jung-Bo Son ,  Minho Cheong ,  Sok-Kyu Lee

IPC分类号： H04L27/14 ,  H04L1/02

CPC分类号： H04B7/0413 ,  H04B7/0854 ,  H04L27/2601

摘要： Provided is a QR decomposition apparatus and method that can reduce the number of computers by sharing hardware in an MIMO system employing OFDM technology to simplify a structure of hardware. The QR decomposition apparatus includes a norm multiplier for calculating a norm; a Q column multiplier for calculating a column value of a unitary Q matrix to thereby produce a Q matrix vector; a first storage for storing the Q matrix vector calculated in the Q column multiplier; an R row multiplier for calculating a value of an upper triangular R matrix by multiplying the Q matrix vector by a reception signal vector; and a Q update multiplier for receiving the reception signal vector and an output of the R row multiplier, calculating an Q update value through an accumulation operation, and providing the Q update value to the Q column multiplier to calculate a next Q matrix vector.

摘要翻译： 提供了一种QR分解装置和方法，其可以通过在采用OFDM技术的MIMO系统中共享硬件来减少计算机的数量，以简化硬件的结构。 QR分解装置包括用于计算范数的标准倍数; Q列乘法器，用于计算酉矩阵的列值，从而产生Q矩阵向量; 用于存储在Q列乘法器中计算出的Q矩阵向量的第一存储器; R行乘法器，用于通过将Q矩阵向量乘以接收信号向量来计算上三角形R矩阵的值; 以及Q更新乘法器，用于接收接收信号矢量和R行乘法器的输出，通过累加操作计算Q更新值，并将Q更新值提供给Q列乘法器以计算下一个Q矩阵向量。

公开(公告)号：US09241318B2

公开(公告)日：2016-01-19

申请号：US13336864

申请日：2011-12-23

申请人： Minho Cheong ,  Sok-Kyu Lee

发明人： Minho Cheong ,  Sok-Kyu Lee

IPC分类号： H04B7/02 ,  H04L1/02 ,  H04W56/00 ,  H04B7/04 ,  H04L27/26

CPC分类号： H04W56/00 ,  H04B7/0426 ,  H04L27/2656

摘要： Disclosed is an apparatus for receiving data in a communication system, including a receiving unit configured to receive data through a multi-channel in a MIMO (multi-input multi-output) scheme; a calculating unit configured to calculate a receiving power distribution value in each antenna of a multi-antenna and in each channel of the multi-channel, correspondingly to the MIMO scheme, and to generate a receiving synchronization signal using the receiving power distribution value; and a synchronization unit configured to synchronize frames for the data receiving of the receiving unit using the receiving synchronization signal.

摘要翻译： 公开了一种用于在通信系统中接收数据的装置，包括接收单元，被配置为在MIMO（多输入多输出）方案中通过多信道接收数据; 计算单元，被配置为对应于MIMO方案来计算多天线的每个天线和多信道的每个信道中的接收功率分布值，并且使用接收功率分布值来生成接收同步信号; 以及同步单元，被配置为使用接收同步信号来同步用于接收单元的数据接收的帧。

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：US20090135942A1

公开(公告)日：2009-05-28

申请号：US12174929

申请日：2008-07-17

申请人： Yun-Joo Kim ,  Yoo-Seung Song ,  Jee-Yon Choi ,  Hyun-Gu Park ,  Minho Cheong ,  Sok-Kyu Lee

发明人： Yun-Joo Kim ,  Yoo-Seung Song ,  Jee-Yon Choi ,  Hyun-Gu Park ,  Minho Cheong ,  Sok-Kyu Lee

IPC分类号： H04B7/02

CPC分类号： H04B7/0691 ,  H04L47/50

摘要： Provided are an apparatus and method for transmitting data using a multi-antenna. The apparatus includes a transmission buffer selecting unit for selecting transmission buffer of an antenna group corresponding to characteristics of each aggregated Medium access control Protocol Data Units (MPDU) when a list of aggregated MPDUs to transmit is received; a data transmitting unit for generating a list of aggregated MPDUs to transmit with storage information of the aggregated MPDUs, transferring the generated list to the transmission buffer selecting unit and transmitting corresponding aggregated MPDUs through the selected transmission buffer; and a timing controlling unit for controlling a transmission timing of each aggregated MPDU.

摘要翻译： 提供了一种使用多天线发送数据的装置和方法。 发送缓冲器选择单元，用于当接收到要发送的聚合MPDU的列表时，选择对应于每个聚合的媒体访问控制协议数据单元（MPDU）的特性的天线组的发送缓冲器; 数据发送单元，用于生成与所聚合的MPDU的存储信息一起发送的聚合MPDU的列表，将生成的列表传送到发送缓冲器选择单元，并通过所选择的发送缓冲器发送对应的聚合MPDU; 以及定时控制单元，用于控制每个汇聚的MPDU的发送定时。

公开(公告)号：US08537920B2

公开(公告)日：2013-09-17

申请号：US12174929

申请日：2008-07-17

申请人： Yun-Joo Kim ,  Yoo-Seung Song ,  Jee-Yon Choi ,  Hyun-Gu Park ,  Minho Cheong ,  Sok-Kyu Lee

发明人： Yun-Joo Kim ,  Yoo-Seung Song ,  Jee-Yon Choi ,  Hyun-Gu Park ,  Minho Cheong ,  Sok-Kyu Lee

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04B7/0691 ,  H04L47/50

摘要： Provided are an apparatus and method for transmitting data using a multi-antenna. The apparatus includes a transmission buffer selecting unit for selecting transmission buffer of an antenna group corresponding to characteristics of each aggregated Medium access control Protocol Data Units (MPDU) when a list of aggregated MPDUs to transmit is received; a data transmitting unit for generating a list of aggregated MPDUs to transmit with storage information of the aggregated MPDUs, transferring the generated list to the transmission buffer selecting unit and transmitting corresponding aggregated MPDUs through the selected transmission buffer; and a timing controlling unit for controlling a transmission timing of each aggregated MPDU.

摘要翻译： 提供了一种使用多天线发送数据的装置和方法。 发送缓冲器选择单元，用于当接收到要发送的聚合MPDU的列表时，选择对应于每个聚合的媒体访问控制协议数据单元（MPDU）的特性的天线组的发送缓冲器; 数据发送单元，用于生成与所聚合的MPDU的存储信息一起发送的聚合MPDU的列表，将生成的列表传送到发送缓冲器选择单元，并通过所选择的发送缓冲器发送对应的聚合MPDU; 以及定时控制单元，用于控制每个汇聚的MPDU的发送定时。

公开(公告)号：US08483235B2

公开(公告)日：2013-07-09

申请号：US12332001

申请日：2008-12-10

申请人： Minho Cheong ,  Sok-Kyu Lee ,  Seung-Chan Bang ,  Il-Gu Lee

发明人： Minho Cheong ,  Sok-Kyu Lee ,  Seung-Chan Bang ,  Il-Gu Lee

IPC分类号： H04J4/00 ,  H04J1/00

CPC分类号： H04B7/0413 ,  H04B7/0613 ,  H04B7/0684 ,  H04B7/0854

摘要： Provided are a preamble structure and a channel estimation algorithm thereof. A communication method for a transmitter for channel estimation in a Multiple Input Multiple Output (MIMO) wireless communication system having N receiving antennas, includes generating a preamble interval having a short training field that includes a predetermined pattern iterated N times on a time domain and is used for compensating for a carrier frequency offset, and transmitting a packet having the preamble interval.

摘要翻译： 提供了前导码结构及其信道估计算法。 一种用于具有N个接收天线的多输入多输出（MIMO）无线通信系统中用于信道估计的发射机的通信方法，包括生成具有短训练场的前同步码间隔，该训练场包括在时域上迭代N次的预定模式，并且是 用于补偿载波频率偏移，以及发送具有前导码间隔的分组。

公开(公告)号：US08472577B2

公开(公告)日：2013-06-25

申请号：US12274056

申请日：2008-11-19

申请人： Minho Cheong ,  Yu-Ro Lee ,  Sok-Kyu Lee ,  Il-Gu Lee

发明人： Minho Cheong ,  Yu-Ro Lee ,  Sok-Kyu Lee ,  Il-Gu Lee

IPC分类号： H04L7/00

CPC分类号： H04W56/0035 ,  H04L7/042

摘要： Provided is an apparatus and method for detecting reception signal symbol synchronization in a wireless communication system. The method, includes: calculating a channel power value in each of multiple antennas; selecting and averaging at least 2 channel power values; compensating carrier frequency offset for an average value; and determining a symbol boundary of a reception signal according to the size of the average value compensating the carrier frequency offset.

摘要翻译： 提供一种用于在无线通信系统中检测接收信号符号同步的装置和方法。 该方法包括：计算多个天线中每个天线的信道功率值; 选择和平均至少2个通道功率值; 补偿平均值的载波频率偏移; 以及根据补偿载波频率偏移的平均值的大小来确定接收信号的符号边界。