公开(公告)号：KR100461543B1

公开(公告)日：2004-12-16

申请号：KR1020020062484

申请日：2002-10-14

Applicant: 한국전자통신연구원

Inventor： 원석호 ,  류득수 ,  안재민 ,  김환우

IPC: H04B1/69 ,  H04B7/04

CPC classification number: H04B7/0669 ,  H04J13/004

Abstract: A Signal-to-interference ratio (SIR) measuring apparatus in a multiple antenna high data rate packet transmission system measures signal energy to interference energy ratio by using pilot signals that are orthogonal to each other between antennas signals and used by a receiver for separating the signals transmitted from all of the transmitting antennas from each other. The SIR measuring apparatus comprises a signal energy measuring unit, an interference energy measuring unit and a SIR measuring unit. The signal energy measuring unit measures signal energy by synthesizing after coherently integrating and non-coherently integrating values that are obtained by correlating a received signal with pilot patterns equal to the pilot patterns of transmitted antenna signals, respectively. The interference energy measuring unit measures interference energy by coherently integrating and non-coherently integrating after correlating the received signal with another pattern that is orthogonal to the pilot patterns of the transmitted antenna signals but is not transmitted. The SIR measuring unit measures SIR by using the measured signal energy and the measured interference energy.

Abstract translation: 多天线高数据速率分组传输系统中的信号干扰比（SIR）测量设备通过使用在天线信号之间彼此正交的导频信号来测量信号能量干扰能量比，并由接收器用于分离 从所有发射天线彼此发射的信号。 SIR测量装置包括信号能量测量单元，干扰能量测量单元和SIR测量单元。 信号能量测量单元通过在相干积分和非相干积分之后进行合成来测量信号能量，所述积分值通过将接收信号与导频模式分别相等于所发送的天线信号的导频模式相关而获得。 干扰能量测量单元在将接收信号与正交于发射天线信号的导频模式但未发射的另一模式相关后，通过相干积分和非相干积分来测量干扰能量。 SIR测量单元通过使用测量的信号能量和测量的干扰能量来测量SIR。

公开(公告)号：KR1020040033408A

公开(公告)日：2004-04-28

申请号：KR1020020062484

申请日：2002-10-14

Applicant: 한국전자통신연구원

Inventor： 원석호 ,  류득수 ,  안재민 ,  김환우

IPC: H04B1/69 ,  H04B7/04

CPC classification number: H04B7/0669 ,  H04J13/004

Abstract: PURPOSE: An apparatus and a method for measuring an SIR(Signal-to-Interference Ratio) in a multi-antenna high-speed packet transmission system is provided to measure an SIR using pilot signals, which are orthogonal between antenna signals. CONSTITUTION: The first antenna pattern correlator(503) executes correlation for Rx signals, received through an orthogonal code and scramble code correlator(502) from a baseband Rx signal processing part in a receiver, using the same pattern as a pilot symbol pattern outputted from the first antenna pattern generator of a transmitter. The second antenna pattern correlator(506) executes correlation for Rx signals, received through the orthogonal code and scramble code correlator(502) from the baseband Rx signal processing part, using the same pattern as a pilot symbol pattern outputted from the second antenna pattern generator. The Rx signals are inputted to the first and second antenna signal combiners(509) through coherent integrators(504,507) and I/Q squarer/combiners(505,508). The first and second antenna signal combiners(509) execute non-coherent combining for the signals and outputs Rx signal energy(510).

Abstract translation: 目的：提供一种用于测量多天线高速分组传输系统中的SIR（信号与干扰比）的装置和方法，以使用在天线信号之间正交的导频信号来测量SIR。 构成：第一天线方向图相关器（503）通过正交码和加扰码相关器（502）从接收机中的基带Rx信号处理部分接收的Rx信号执行相关性，使用与从 发射机的第一个天线方向图发生器。 第二天线方向图相关器（506）使用与从第二天线图形发生器输出的导频符号图案相同的图案，执行从基带Rx信号处理部分通过正交码和密码相关器（502）接收的Rx信号的相关性 。 Rx信号通过相干积分器（504,507）和I / Q平方/组合器（505,508）输入到第一和第二天线信号组合器（509）。 第一和第二天线信号组合器（509）执行信号的非相干组合并输出Rx信号能量（510）。

公开(公告)号：KR1020120051460A

公开(公告)日：2012-05-22

申请号：KR1020100112903

申请日：2010-11-12

Applicant: 한국전자통신연구원 ,  충남대학교산학협력단

Inventor： 김병학 ,  신철호 ,  오미경 ,  안재민 ,  김정빈 ,  김재길

IPC: H04J11/00

CPC classification number: H04B1/123 ,  H04J11/00 ,  H04L25/0224 ,  H04L27/2695

Abstract: PURPOSE: A receiving apparatus in an OFDM(Orthogonal Frequency Division Multiplexing) system is provided to detect reception signals by estimating distortion matrices combining the unbalanced component of in-phase signals and Quadrature-phase signals and a channel frequency response characteristic. CONSTITUTION: A distortion matrix estimating unit receives a preamble signal including two different long training field symbols. The distortion matrix estimating unit estimates a distortion matrix. An OFDM(Orthogonal Frequency Division Multiplexing) signal processing unit compensates for distortion components from the reception signals by using the distortion matrix. A transmitter includes a preamble generation unit and an OFDM signal processing unit. The preamble generation unit transmits the preamble through two symbol periods by applying Alamouti technique to make a 2x2 non-singular matrix. The OFDM signal processing unit processes transmission signals and the preamble by OFDM.

Abstract translation: 目的：提供OFDM（正交频分复用）系统中的接收装置，通过估计组合同相信号的不平衡分量和正交相位信号以及信道频率响应特性的失真矩阵来检测接收信号。 构成：失真矩阵估计单元接收包括两个不同的长训练场符号的前导码信号。 失真矩阵估计单元估计失真矩阵。 OFDM（正交频分复用）信号处理单元通过使用失真矩阵来补偿来自接收信号的失真分量。 发射机包括前导码生成单元和OFDM信号处理单元。 前导码生成单元通过应用Alamouti技术来形成2×2个非奇异矩阵，通过两个符号周期来发送前同步码。 OFDM信号处理单元通过OFDM处理发送信号和前导码。