公开(公告)号：KR1020050075242A

公开(公告)日：2005-07-20

申请号：KR1020040003459

申请日：2004-01-16

Applicant: 삼성전자주식회사 ,  학교법인연세대학교

Inventor： 조영보 ,  홍대식 ,  노상민 ,  황찬수 ,  정재학

IPC: H04B1/707

CPC classification number: H04L25/0226 ,  H04J13/00 ,  H04L5/0021 ,  H04L5/0048 ,  H04L25/022 ,  H04L27/2613

Abstract: 본 발명에 따른 주파수 인터리빙이 적용되는 다중 반송파 코드분할다중접속 (MC-CDMA) 통신시스템을 위한 채널 추정 방법은 송신측에서 대역확산을 거쳐 생성된 확산심벌들에 대해 각각의 확산심벌들이 전송될 반송파에 따라 파일럿(P) 혹은 파일럿의 역수(-P)를 적용하여 전송심벌들을 생성하고, 상기 전송심벌들에 대해 주파수 영역에서 인터리빙을 수행한 후 전송하고, 수신측에서 상기 전송심벌들에 포함된 파일럿(P)을 추출하여 채널을 추정하는 것을 특징으로 한다.

公开(公告)号：KR1020050015730A

公开(公告)日：2005-02-21

申请号：KR1020030054674

申请日：2003-08-07

Applicant: 삼성전자주식회사 ,  학교법인연세대학교

Inventor： 이학주 ,  이충용 ,  정재학 ,  황찬수

IPC: H04B7/00

CPC classification number: H04B7/0626 ,  H04B7/0417 ,  H04B7/0452 ,  H04L25/0204 ,  H04L25/0248 ,  H04W72/1231

Abstract: PURPOSE: A scheduling method for multiple users in a mobile communication system using a multi-transceiving antenna, and a device therefor are provided to concentrate a channel gain on an optimum eigen-value under radio environment where a big spatial correlation is obtained, in order to select users having the best channels, and to detect data through a simple vector multiplication, thereby simplifying a receiver configuration. CONSTITUTION: User terminals estimate channel features from plural transmission antennas, divide the estimated channel features into receiving channel features and transmission channel features, and feed back optimum transmission eigen-vectors having a maximum value to a base station. The base station selects a predetermined number of user terminals having the smallest correlation by using the fed eigen-vectors, configures a user precoding matrix by combining the optimum eigen-vectors, and multiplies a data stream by the user precoding matrix to send the data stream through the antennas.

Abstract translation: 目的：提供一种使用多收发天线的移动通信系统中的多个用户的调度方法及其设备，以便在获得大的空间相关性的无线电环境下将信道增益集中在最佳本征值上，按顺序 选择具有最佳频道的用户，并且通过简单的矢量乘法检测数据，从而简化接收机配置。 构成：用户终端估计来自多个发送天线的信道特征，将估计的信道特征划分为接收信道特征和传输信道特征，并向基站馈送具有最大值的最佳传输特征向量。 基站通过使用馈送的特征向量来选择具有最小相关性的预定数量的用户终端，通过组合最优特征向量来配置用户预编码矩阵，并且通过用户预编码矩阵乘以数据流以发送数据流 通过天线。

公开(公告)号：KR1020040028444A

公开(公告)日：2004-04-03

申请号：KR1020020059621

申请日：2002-09-30

Applicant: 삼성전자주식회사

Inventor： 타록바히드 ,  정재학 ,  황찬수 ,  김영수

IPC: H04B7/02

CPC classification number: H04L1/0054 ,  H04L1/0041 ,  H04L1/0618

Abstract: PURPOSE: A device for transceiving multiple antenna signals of a mobile communication system is provided to transmit symbols encoded by one of encoders of the second group through at least one of grouped antennas, thereby obtaining a good multiplexing gain and a better diversity gain. CONSTITUTION: An S/P(Serial/Parallel) converter(110) is a frame divider for dividing input frames into bit groups. Encoders(121_1-123_3) of the first group input the bit groups, respectively, encode the inputted bit groups, and output encoded symbols. Encoders(121_2-123_2) of the second group input at least more than 2 bit groups of the bit groups, respectively, encode the inputted bit groups, and output encoded symbols. Transmitters(131_1-133_3) are connected to each of the encoders(121_1-123_3)(121_2-123_2), and convert the encoded symbols into proper signals to be transmitted through antennas(ANT11-ANT33).

Abstract translation: 目的：提供一种用于收发移动通信系统的多个天线信号的装置，用于通过分组天线中的至少一个发送由第二组编码器之一编码的符号，从而获得良好的多路复用增益和更好的分集增益。 构成：S / P（串行/并行）转换器（110）是用于将输入帧分成位组的帧分配器。 输入位组的第一组的编码器（121_1-123_3）分别编码输入的位组，并输出编码的符号。 至少输入比特组的2比特组的第二组的编码器（121_2-123_2）分别对所输入的比特组进行编码，并输出编码的符号。 发送器（131_1-133_3）连接到每个编码器（121_1-123_3）（121_2-123_2），并将编码符号转换成通过天线发送的适当信号（ANT11-ANT33）。