专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明申请

US20100310001A1 TRANSMITTING/RECEIVING METHOD FOR MULTI-USER MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM 有权
标题翻译：用于多用户多输入多输出系统的发送/接收方法
公开(公告)号：US20100310001A1
公开(公告)日：2010-12-09
申请号：US12740896
申请日：2008-06-24
申请人： Choong il Yeh , In-Kyeong Choi , Young Seog Song , Seung Joon Lee , Byung-Jae Kwak , Ji Hyung Kim , Dong Seung Kwon , Joon Doo Kim , Ji Won Kang , Chung Yong Lee
发明人： Choong il Yeh , In-Kyeong Choi , Young Seog Song , Seung Joon Lee , Byung-Jae Kwak , Ji Hyung Kim , Dong Seung Kwon , Joon Doo Kim , Ji Won Kang , Chung Yong Lee
IPC分类号： H04L1/02
CPC分类号： H04B7/0413 , H04B7/0465 , H04L25/03343 , H04L2025/0342 , H04L2025/03426
摘要： Disclosed is a transmitting/receiving method in a multi-user multiple-input multiple-output (MU-MIMO) channel. The transmitting method includes: performing QR decomposition on a Hermitian transpose matrix of a channel matrix to obtain a first matrix and a second matrix as a triangular matrix; obtaining a preprocessing matrix by using the first matrix; and forming an effective channel based on the preprocessing matrix by a block triangulation technique.
摘要翻译：公开了一种多用户多输入多输出（MU-MIMO）信道中的发送/接收方法。发送方法包括：对信道矩阵的厄米转置矩阵执行QR分解以获得第一矩阵和第二矩阵作为三角矩阵; 通过使用第一矩阵获得预处理矩阵; 并通过块三角测量技术形成基于预处理矩阵的有效信道。

42. 发明授权

US07634030B2 Data transmission apparatus for DS/CDMA system equipped with MIMO antenna system 失效
标题翻译：具有MIMO天线系统的DS / CDMA系统的数据传输装置
公开(公告)号：US07634030B2
公开(公告)日：2009-12-15
申请号：US10334634
申请日：2002-12-31
申请人： Seong Rag Kim , Young Ho Jung , In-Kyeong Choi , Yong Hoon Lee
发明人： Seong Rag Kim , Young Ho Jung , In-Kyeong Choi , Yong Hoon Lee
IPC分类号： H04L27/06
CPC分类号： H04B7/0413 , H04B7/0613 , H04B7/0851 , H04B7/0854
摘要： A transmission apparatus for a DS/CDMA system including a multiple-input multiple output MIMO antenna system is disclosed. The apparatus includes a transmitter for transmitting data by applying a different scramble code to each transmitted data through a plurality of transmitting antennas. The apparatus also includes a receiver for receiving the transmitted data by obtaining a diversity gain based on the maximum order of the diversity in order to effectively detect the data. The present invention achieves an excellent detection performance by receiving data with a full order of diversity, which is a multiple of the number of receiving antennas and the number of multipath, without complicated operation such as a decision feed equalizer.
摘要翻译：公开了一种包括多输入多输出MIMO天线系统的DS / CDMA系统的发送装置。该装置包括：发射机，用于通过多个发射天线向每个发送的数据应用不同的密码来发送数据。该装置还包括接收器，用于通过基于分集的最大顺序获得分集增益来接收所发送的数据，以便有效地检测数据。本发明通过以分集的全部数量接收数据来实现优异的检测性能，分集数是接收天线的数量和多径的数量，而无需诸如决策馈送均衡器的复杂操作。

43. 发明申请

US20090067513A1 Smart antenna system and method thereof for forming uplink eigenbeam of ofdm/tdd 有权
标题翻译：智能天线系统及其形成为dm / tdd的上行本征光束的方法
公开(公告)号：US20090067513A1
公开(公告)日：2009-03-12
申请号：US11579722
申请日：2004-11-10
申请人： Seong-Rag Kim , In-Kyeong Choi , Dong-Seung Kwon , Seung-Ku Hwang
发明人： Seong-Rag Kim , In-Kyeong Choi , Dong-Seung Kwon , Seung-Ku Hwang
IPC分类号： H04L27/28 , H04J11/00
CPC分类号： H04B7/0413 , H04B7/0617 , H04B7/0619 , H04B7/086 , H04L5/023 , H04L5/1484 , H04L25/0228 , H04L25/0248 , H04L27/2647
摘要： A mobile station transmitting and receiving method and a corresponding mobile station transmitter and receiver of a smart antenna system for forming uplink eigenbeams of the OFDM/TDD (orthogonal frequency division multiplex/time division duplex), wherein OFDM symbols are received from a base station through a downlink via multiple antennas (250) and an FFT (fast Fourier transform) is performed on the received OFDM symbols by the FFT units (270). By means of a channel estimator (290) the channels are estimated and a beam weight generator (310) generates respective beam weights from the channels of the respective pilot tones of the respective subcarriers according to the channel estimation result. A beam weight multiplier (230) forms the uplink beam by multiplying the respective beam weights with the output of the signal repeater (220) and IFFT units (240) generate respective OFDM symbols which are transmitted via multiple antennas (250) through an uplink.
摘要翻译：一种用于形成OFDM / TDD（正交频分复用/时分双工）的上行固有光束的智能天线系统的移动台发射和接收方法和相应的移动台发射机和接收机，其中从基站通过通过FFT单元（270）对所接收的OFDM符号执行经由多个天线（250）和FFT（快速傅里叶变换）的下行链路。通过信道估计器（290），估计信道，并且波束权重发生器（310）根据信道估计结果从相应子载波的相应导频音调的信道生成相应的波束权重。波束权重乘法器（230）通过将各个波束权重与信号中继器（220）的输出相乘来形成上行链路波束，并且IFFT单元（240）生成经由多个天线（250）经由上行链路发送的各个OFDM符号。

44. 发明申请

US20080240276A1 Multi-Input Multi-Output System For Enhancing Transmission Performance 失效
标题翻译：用于提高传输性能的多输入多输出系统
公开(公告)号：US20080240276A1
公开(公告)日：2008-10-02
申请号：US11667711
申请日：2005-08-10
申请人： Young-Seog Song , Seong-Rag Kim , In-Kyeong Choi , Choong-ll Yeh , Seung-Joon Lee , Hyoung-Soo Lim , Kwang-Jae Lim , Yu-Ro Lee , Jong-Ee Oh , Dong-Seung Kwon , Seung-Ku Hwang , Chung-Yong Lee , Myeong-Cheol Shin
发明人： Young-Seog Song , Seong-Rag Kim , In-Kyeong Choi , Choong-ll Yeh , Seung-Joon Lee , Hyoung-Soo Lim , Kwang-Jae Lim , Yu-Ro Lee , Jong-Ee Oh , Dong-Seung Kwon , Seung-Ku Hwang , Chung-Yong Lee , Myeong-Cheol Shin
IPC分类号： H04L5/12 , H04L27/28
CPC分类号： H04B7/061 , H04B7/0669 , H04B7/0691 , H04B7/08 , H04L1/0003 , H04L1/0637 , H04L1/0675
摘要： The present invention relates to a multi-input multi-output (MIMO) system for enhancing transmission performance. The MIMO system uses space-time encoding and transmit antenna selection methods, and includes a transmitter (100) and a receiver (200). The transmitter (100) includes N transmit antennas (130-1, 130-4) that are more than M tansrni antennas (130-1, 130-3) used for transmitting a signal to space channel, selects the M transmit antennas (130-1, 130-3) among the N transmit antennas (130-3 130-4), and transmits symbol by space-time encoding the symbol. The receiver (200) includes M receive antenna (120-1, 210-2) for receiving a signal from the space channel, detects an information symbol by using the signal received through the receive antenna (210-1, 210-2), generates transmit antenna selection information for selecting M transmit antennas (130-1, 130-3) among transmit antennas (i30-1, . . . 7130-4) with reference to a channel estimate, and returns the information to the transmitter.
摘要翻译：本发明涉及用于增强传输性能的多输入多输出（MIMO）系统。 MIMO系统使用时空编码和发射天线选择方法，并且包括发射机（100）和接收机（200）。发射机（100）包括比用于将信号发射到空间信道的M多个天线（130-1,30-3）多的N个发射天线（130-1,140-4），选择M个发射天线（130 -1,130-3），并且通过对该符号进行时空编码来发送符号。接收器（200）包括用于从空间信道接收信号的M个接收天线（120-1,210-2），通过使用通过接收天线（210-1,210-2）接收的信号来检测信息符号，生成用于参考信道估计在发射天线（i 30-1，...，7130-4）中选择M个发射天线（130-1,130-3）的发射天线选择信息，并将该信息返回给发射机。

45. 发明申请

US20080081669A1 METHOD AND DEVICE FOR OPTIMIZING CODEBOOK FOR QUANTIZED PRECODER BY USING STEEPEST DESCENT ALGORITHM 有权
标题翻译：通过使用STEEPEST DESCAL算法优化定量预处理器的代码的方法和设备
公开(公告)号：US20080081669A1
公开(公告)日：2008-04-03
申请号：US11743147
申请日：2007-05-02
申请人： Dong-Seung Kwon , Young-Seog Song , In-Kyeong Choi , Chungyong Lee , Myeongcheol Shin , Myoung-Seok Kim , Seung-Joon Lee
发明人： Dong-Seung Kwon , Young-Seog Song , In-Kyeong Choi , Chungyong Lee , Myeongcheol Shin , Myoung-Seok Kim , Seung-Joon Lee
IPC分类号： H04B1/38
CPC分类号： H04B7/0658 , H04B7/0634 , H04B7/0639
摘要： In a method for optimizing a codebook including a quantized channel between a base station transmitter and a portable terminal: a) select the codebook to be optimized; b) a steepest descent algorithm is applied to respective codewords of the codebook selected in a), wherein the codewords are transformed so that a correlation between the codewords is minimized, and a function indicating the correlation between the codewords is differentiated and is multiplied by a predetermined step size and is used for a parameter for generating a new codeword in the steepest descent algorithm; c) it is determined whether the codebook including the codewords transformed in b) is optimized; and d) the codebook is stored when it is determined in c) that the codebook is optimized.
摘要翻译：一种用于优化包括基站发射机和便携式终端之间的量化信道的码本的方法：a）选择要优化的码本; b）将最陡下降算法应用于在a）中选择的码本的相应码字，其中对码字进行变换，使得码字之间的相关性最小化，并且指示码字之间的相关性的函数被区分，并乘以用于在最速下降算法中生成新码字的参数; c）确定包括在b）中变换的码字的码本是否被优化; 以及d）当在c）中确定码本被优化时，存储码本。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式