公开(公告)号：KR1020080058698A

公开(公告)日：2008-06-26

申请号：KR1020060132724

申请日：2006-12-22

Applicant: 삼성전자주식회사 ,  재단법인서울대학교산학협력재단

Inventor： 신요안 ,  양석철 ,  박대진

IPC: H04B7/04 ,  H04B7/08

CPC classification number: H04B7/0634 ,  H04B7/0417 ,  H04B7/0456

Abstract: An antenna selecting apparatus and a method thereof in a MIMO(Multi-Input Multi-Output communication system) are provided to improve frequency efficiency performance in a bad channel state. When user data bits and control data bits are generated to be transmitted, the same are inputted to a coding unit(102). The coding unit codes the inputted user data bits and the control data bits according to a pre-set coding method and outputs the same to a modulator. The modulator modulates the received signals according to a pre-set modulation method and outputs the same to an antenna selector(104). The antenna selector checks whether there is antenna select information which has been received from a reception end. If there is antenna select information, the antenna selector selects transmit antennas to transmit the signals. A weight value determining unit(106) determines a weight vector of each transmit antenna. The signals transmitted via transmit antennas(150,152,156) from a transmission end are received via reception antennas(158,160) of the reception end. An antenna determining unit(110) performs calculation to determine transmit antennas to be used for transmitting the signals and transmits the result to a code selector(114). The code selector feeds back code index information to the transmission end. A coding unit(112) decodes the signals, and final signals are outputted via a demodulator.

Abstract translation: 提供了一种MIMO（多输入多输出通信系统）中的天线选择装置及其方法，用于提高不良信道状态下的频率效率性能。 当生成要发送的用户数据位和控制数据位时，它们被输入到编码单元（102）。 编码单元根据预设的编码方法对输入的用户数据位和控制数据位进行编码，并将其输出到调制器。 调制器根据预先设定的调制方式对接收的信号进行调制，并将其输出到天线选择器（104）。 天线选择器检查是否存在从接收端接收的天线选择信息。 如果有天线选择信息，天线选择器选择发射天线来发射信号。 权重值确定单元（106）确定每个发射天线的权重向量。 经由发送端发送的信号（150,152,156）经由接收端的接收天线（158,160）接收。 天线确定单元（110）执行计算以确定要用于发送信号的发射天线，并将结果发送到码选择器（114）。 代码选择器将代码索引信息反馈到传输端。 编码单元（112）对信号进行解码，并通过解调器输出最终信号。

公开(公告)号：KR101227245B1

公开(公告)日：2013-01-28

申请号：KR1020060032094

申请日：2006-04-07

Applicant: 삼성전자주식회사 ,  재단법인서울대학교산학협력재단

Inventor： 신요안 ,  양석철 ,  박대진

IPC: H04B7/04 ,  H04L27/26

Abstract: 본 발명은 빔 포밍-다중 입력 다중 출력(MIMO: Multiple Input Multiple Output)/직교 주파수 분할 다중화(OFDM: Orthogonal Frequency Division Multiplexing) 통신 시스템의 기지국에서 상기 기지국에서 사용하는 N
c 개의 서브 캐리어들 중, 각 서브 캐리어 별 채널 상태를 기반으로 사용자 단말기가 사용하기로 선택한 N
s 개의 서브 캐리어들에 대한 정보를 포함하는 자원 선택 정보를 수신하고, 상기 기지국에서 사용하는 M개의 송신 안테나들 각각을 통해 송신하고자 하는 N
s 개의 동일한 데이터 심볼들을 생성하고, 상기 M개의 송신 안테나들 별로, 상기 N
s 개의 동일한 데이터 심볼들을 상기 N
s 개의 서브 캐리어들을 사용하여 상기 사용자 단말기로 송신한다.
MIMO, 자원 선택 정보, 빔 포밍, SNR

公开(公告)号：KR1020070100596A

公开(公告)日：2007-10-11

申请号：KR1020060032094

申请日：2006-04-07

Applicant: 삼성전자주식회사 ,  재단법인서울대학교산학협력재단

Inventor： 신요안 ,  양석철 ,  박대진

IPC: H04B7/04 ,  H04L27/26

CPC classification number: H04B7/0617 ,  H04B7/0417 ,  H04L27/26 ,  H04W88/02 ,  H04W88/08

Abstract: A signal transceiving system in a beam forming MIMO(Multiple Input Multiple Output)/OFDM(Orthogonal Frequency Division Multiplexing) communication system and a method thereof are provided to reduce uplink load and to increase the resource efficiency of the beam forming MIMO/OFDM by minimizing fed back information with the resource selection. A method of a signal transceiving system in a beam forming MIMO(Multiple Input Multiple Output)/OFDM(Orthogonal Frequency Division Multiplexing) communication system comprises the following several steps. A BS(Base Station) receives resource selection information from a user terminal(411). The BS selects Ns units among Nc units of sub carriers corresponding to the received resource selection information, and maps the Ns units of the sub carriers with data symbols(413). The BS multiplies the Ns units of the sub carriers, mapped with the data symbols, by corresponding weighting factors and performs a beam forming process(415). The BS performs an Nc-Point IFFT(Inverse Fast Fourier Transform) operation for the signals resulted from the beam forming process(417). The BS performs a serial conversion process for the signals resulted from the Nc-point IFFT operation(419). The BS inserts a protection section into the signals resulted from the serial conversion process(421). The BS transmits the signals, where the protection section is inserted, to the user terminal(423).

Abstract translation: 提供了一种波束形成MIMO（多输入多输出）/ OFDM（正交频分复用）通信系统中的信号收发系统及其方法，以减少上行链路负载并通过最小化最小化来增加形成MIMO / OFDM的波束的资源效率 用资源选择反馈信息。 波束形成MIMO（多输入多输出）/ OFDM（正交频分复用）通信系统中的信号收发系统的方法包括以下几个步骤。 BS（基站）从用户终端接收资源选择信息（411）。 BS选择与所接收的资源选择信息相对应的子载波的Nc个单元中的Ns个单位，并且用数据符号映射子载波的Ns个单元（413）。 BS将与数据符号映射的子载波的Ns个单位乘以相应的加权因子并执行波束形成处理（415）。 BS对由波束形成处理（417）产生的信号执行Nc-Point IFFT（快速傅里叶逆变换）。 BS对由Nc点IFFT操作产生的信号进行串行转换处理（419）。 BS将保护部分插入到串行转换过程中产生的信号中（421）。 BS将保护部分插入的信号发送到用户终端（423）。

公开(公告)号：KR1020000014296A

公开(公告)日：2000-03-06

申请号：KR1019980033652

申请日：1998-08-19

Applicant: 삼성전자주식회사

Inventor： 양석철

IPC: H04B1/38

CPC classification number: H04M1/233 ,  H04M1/72583 ,  H04M2201/36 ,  H04M2201/38 ,  H04M2250/12

Abstract: PURPOSE: A track ball user interface system for a mobile communication terminal and a method thereof are provided to reduce the size of a key input part of the mobile communication terminal. CONSTITUTION: This track ball user interface system includes a track ball part having a track ball, an up/down sensor, a left/right sensor, and a push sensor; a memory storing plural icons showing various functions of the terminal; a display displaying the icons and general display data; and a control part producing a control signal in order to perform the function of one of the icons selected by a user. The present invention can reduce the size of the key input and provide convenience to a user.

Abstract translation: 目的：提供用于移动通信终端的轨道球用户界面系统及其方法，以减小移动通信终端的键输入部分的大小。 构成：该轨道球用户接口系统包括具有轨道球的轨道球部分，上/下传感器，左/右传感器和推动传感器; 存储表示终端的各种功能的多个图标的存储器; 显示图标和一般显示数据的显示器; 以及产生控制信号以便执行由用户选择的图标之一的功能的控制部分。 本发明可以减小键输入的大小，并为用户提供方便。