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71. 发明公开

KR1020040089234A 빔 형성 시스템에서의 셀 공통 정보 전송 방법 失效
标题翻译：在波束形成系统中传输小区共同信息的方法 - 该方法包含使用用于传送用户交通的休息频率的特定频率的分配步骤，使用用于传输公共信息的框架和用于用户交通的帧
公开(公告)号：KR1020040089234A
公开(公告)日：2004-10-21
申请号：KR1020030022924
申请日：2003-04-11
申请人： 한국전자통신연구원
发明人： 예충일 , 박재준 , 권동승 , 임선배
IPC分类号： H04B7/00
摘要： PURPOSE: A method for transmitting cell common information in a beamforming system is provided to assign one specific frequency for a common information channel, and to transceive user traffic by using the rest frequencies, thereby improving transmission inefficiency. CONSTITUTION: A system divides frames into a frame for transmitting a common information channel and a frame for transmitting user traffic, assigns a specific frequency designated in the frame for transmitting the common information channel, and transceives the user traffic to the rest frequencies except the specific frequency. The system transceives the common information channel or the user traffic by using the assigned frequencies, and divides the frames in time unit by using the specific frequency to transceive the common information channel through each cell.
摘要翻译：目的：提供一种在波束形成系统中发送小区公共信息的方法，用于为公共信息信道分配一个特定频率，并通过使用其余频率来收发用户业务，从而提高传输效率低下。构成：系统将帧划分成用于发送公共信息信道的帧和用于发送用户业务的帧，分配用于发送公共信息信道的帧中指定的特定频率，并将用户业务收发到除特定频率。系统通过使用分配的频率来收发公共信息信道或用户业务，并通过使用特定频率来以时间单位划分帧，以便通过每个小区收发公共信息信道。

72. 发明授权

KR100383670B1 공간-시간 배열 수신 시스템 및 페이딩 채널에 의한 왜곡 보상 방법 失效
标题翻译： - 배열배열템템왜곡왜곡왜곡법법법법법법법법법법법법
公开(公告)号：KR100383670B1
公开(公告)日：2003-05-14
申请号：KR1020000059803
申请日：2000-10-11
申请人： 한국전자통신연구원
发明人： 경문건 , 박재준
IPC分类号： H04B7/005
摘要： PURPOSE: A finger, a space-time array receiving system having the same, and a method for compensating a distortion by a fading channel are provided to adaptively compensate a distortion state due to a fading channel by adding a Doppler frequency estimator and a correlation length selector and to increase communication quality, a service coverage per base station, and subscriber capacity by using a chip level and time reference beam forming technique. CONSTITUTION: A space-time array receiving system having a finger(430) consists of a digital beam forming network(400), a demodulator(430), a rake combiner(430-D), a hard limiter(440-B), and a reference signal generator(440-A). The digital beam forming network(400) is composed of multipliers(400-A) and an adder(400-B). The demodulator(430) demodulates the output signal of the digital beam forming network(400). The rake combiner(430-D) receives the output signal of the demodulator(430) and combines symbols. The hard limiter(440-B) executes hard decision for the signal passing through the rake combiner(430-D). The reference signal generator(440-A) receives the information fed back from the finger in the demodulator(430) and the output of the hard limiter(440-B) and creates a reference signal. The finger in the demodulator(430) comprises a Doppler frequency estimator(430-F) and a correlation length selector(430-E). The Doppler frequency estimator(430-F) receives the fading channel information of a pilot channel I/Q correlator(430-A) and estimates a fading channel Doppler frequency. The correlation length selector(430-E) receives the estimated fading channel Doppler frequency and estimates the correlation length of the pilot channel I/Q correlator(430-A).
摘要翻译：目的：提供一种手指，具有该手指的空时阵列接收系统和用于通过衰落信道补偿失真的方法，以通过增加多普勒频率估计器和相关长度来自适应地补偿由于衰落信道引起的失真状态通过使用码片级和时间参考波束形成技术来增加通信质量，每个基站的服务覆盖范围和用户容量。一种具有手指（430）的空时阵列接收系统由数字波束形成网络（400），解调器（430），分离合并器（430-D），硬限幅器（440-B），和参考信号发生器（440-A）。数字波束形成网络（400）由乘法器（400-A）和加法器（400-B）组成。解调器（430）解调数字波束形成网络（400）的输出信号。分离合并器（430-D）接收解调器（430）的输出信号并合并符号。硬限制器（440-B）对通过分离多路复用器（430-D）的信号执行硬判决。参考信号发生器（440-A）接收从解调器（430）中的手指反馈的信息和硬限幅器（440-B）的输出并创建参考信号。解调器（430）中的手指包括多普勒频率估计器（430-F）和相关长度选择器（430-E）。多普勒频率估计器（430-F）接收导频信道I / Q相关器（430-A）的衰落信道信息并估计衰落信道多普勒频率。相关长度选择器（430-E）接收估计的衰落信道多普勒频率并估计导频信道I / Q相关器（430-A）的相关长度。

73. 发明公开

KR1020030028111A 코드 분할 다중 시스템에서의 공간-시간 배열 수신 시스템및 수신 방법 无效
标题翻译： CDMA系统中的时空阵列接收系统及其方法
公开(公告)号：KR1020030028111A
公开(公告)日：2003-04-08
申请号：KR1020010060078
申请日：2001-09-27
申请人： 한국전자통신연구원
发明人： 박재준 , 오현서 , 경문건 , 이준환
IPC分类号： H04B7/216
CPC分类号： H04W16/28 , H04B7/216 , H04W52/42 , H04W74/02
摘要： PURPOSE: A space-time array receiving system in a CDMA(Code Division Multiple Access) and a method thereof are provided to easily cancel signals of several users located at the same region in a CDMA system under a multi path channel environment, thereby enhancing amount of a reverse direction channel. CONSTITUTION: A signal processing unit(20) consists of a multi-channel array receiver(21) which changes a plurality of signals received from an array antenna(10) into a base band digital signal. An arrival angle and beam coefficient estimator(23) estimates an arrival angle and beam formation coefficient of the received signal on the basis of a signal outputted from the multi-channel array receiver(21). A digital beam formation device(22) forms an optimum directional beam by multiplying a signal outputted from the multi-channel array receiver(21) by an estimated beam formation coefficient. A rake receiver(24) combines a signal outputted from the digital beam formation device(22) with the maximum ratio in order to maximize a signal power to noise of a user's signal to noise power. An adaptation plural user detector(25) cancels an identical channel interference signal to a signal outputted from the rake receiver(24). A controller(26) discriminates whether a user are positioned at the same position on the basis of an arrival angle of an estimated user, then controls the adaptation plural user detector(26) according to the result and performs a plural user detection method on the users positioned at the same position.
摘要翻译：目的：提供CDMA（码分多址）的时空阵列接收系统及其方法，以便在多径信道环境下容易地消除位于CDMA系统中相同区域的多个用户的信号，从而增加数量的反向通道。构成：信号处理单元（20）包括将从阵列天线（10）接收的多个信号改变成基带数字信号的多通道阵列接收器（21）。到达角度和光束系数估计器（23）基于从多通道阵列接收器（21）输出的信号估计接收信号的到达角度和波束形成系数。数字波束形成装置（22）通过将从多通道阵列接收器（21）输出的信号乘以估计的波束形成系数来形成最佳定向波束。耙式接收器（24）将从数字波束形成装置（22）输出的信号与最大比率相结合，以最大化用户信号与噪声功率的信号功率噪声。适应多用户检测器（25）将相同的信道干扰信号与从耙式接收器（24）输出的信号相抵消。控制器（26）基于估计用户的到达角度来判断用户是否处于相同位置，然后根据结果控制适配多用户检测器（26），并对该用户检测方法用户位于同一位置。

74. 发明公开

KR1020020039424A 페이딩 적응형 공간-시간 배열 수신 시스템 및 그 방법 有权
标题翻译：用于接收自适应型的超高性能空间时间阵列的系统及其方法
公开(公告)号：KR1020020039424A
公开(公告)日：2002-05-27
申请号：KR1020000069229
申请日：2000-11-21
申请人： 한국전자통신연구원
发明人： 경문건 , 박재준
IPC分类号： H04B7/216
CPC分类号： H04L1/0618 , H04B1/712 , H04L1/0631
摘要： PURPOSE: A system for receiving an ultra-high performance space-time array of a fading adaptive type and a method thereof are provided to select a correlation length of a pilot channel in adaptable and perform a correlation using a variation amount of a fading channel obtained through a doppler frequency estimation and a data rate of a receiving signal when a pilot channel is correlated for compensating a distortion phenomenon by a fading channel in a reverse direction link of a CDMA wireless communication system applying an array antenna. CONSTITUTION: A plurality of digital beam forming networks(120) perform a space filtering by multiplying a receiving signal which is received from a plurality of antennas and converted into a digital signal by a weight value vector according to each multiple path signal, and forms a beam. A plurality of demodulators(160) demodulate output signals of a plurality of digital beam forming networks. A pilot channel correlator estimates a fading channel using a pilot signal in the demodulators(160). A doppler frequency estimation unit(150) receives an output of the pilot channel correlator and estimates a doppler frequency of the fading channel. A microprocessor(180) supplies data rate information of a received signal and controls a signal flow. A correlation length selection unit(140) receives a doppler frequency estimation value estimated from the doppler frequency estimation unit(150) and a data rate of a received signal and decides a correlation length of the pilot channel correlator. A reference signal generator(170) receives outputs of a plurality of fingers and generates a reference signal. A plurality of weight value vector estimators receive an output of the reference signal generator(170) and the receiving signal and supplies the digital beam forming network(120).
摘要翻译：目的：提供一种用于接收衰落自适应类型的超高性能时空阵列及其方法的系统，用于选择可适应的导频信道的相关长度，并使用获得的衰落信道的变化量来执行相关性通过多普勒频率估计和当导频信道相关联的接收信号的数据速率时，通过应用阵列天线的CDMA无线通信系统的反向链路中的衰落信道来补偿失真现象。构成：多个数字波束形成网络（120）通过将从多个天线接收的接收信号相乘并根据每个多路径信号被加权值向量转换为数字信号来执行空间滤波，并形成光束。多个解调器（160）解调多个数字波束形成网络的输出信号。导频信道相关器使用解调器（160）中的导频信号来估计衰落信道。多普勒频率估计单元（150）接收导频信道相关器的输出并估计衰落信道的多普勒频率。微处理器（180）提供接收信号的数据速率信息并控制信号流。相关长度选择单元（140）接收从多普勒频率估计单元（150）估计的多普勒频率估计值和接收信号的数据速率，并确定导频信道相关器的相关长度。参考信号发生器（170）接收多个手指的输出并产生参考信号。多个权重值向量估计器接收参考信号发生器（170）的输出和接收信号并提供数字波束形成网络（120）。

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