公开(公告)号：KR1020060113858A

公开(公告)日：2006-11-03

申请号：KR1020060099125

申请日：2006-10-12

Applicant: 한국전자통신연구원 ,  한국과학기술원

Inventor： 박수원 ,  권재균 ,  신강수 ,  정재훈 ,  윤지영 ,  문성호 ,  박수미 ,  성단근 ,  경문건 ,  차재상 ,  이서영 ,  송석일 ,  손인수 ,  조주필 ,  김재준 ,  이희수

IPC: H04B1/7143

CPC classification number: H04B1/715 ,  H04B1/7143 ,  H04B2001/7152 ,  H04L1/18

Abstract: A digital communication method and a system for the same are provided to reduce the number of puncturing by subdividing a method of processing during a multi-dimension orthogonal resource hopping pattern collision. A digital communication method includes the steps of: measuring a transient collision ratio at a specific frame of a multi-dimension hopping pattern; and stopping a frame transmission in order of a less affective channel if the transient collision ratio becomes higher than a reference collision ratio.

Abstract translation: 提供一种数字通信方法及其系统，用于通过在多维正交资源跳频图案冲突期间细分处理方法来减少删余次数。 数字通信方法包括以下步骤：测量多维跳频图案的特定帧处的瞬态碰撞率; 并且如果瞬态碰撞率变得高于参考碰撞率，则按照较少情感通道的顺序停止帧传输。

公开(公告)号：KR100423147B1

公开(公告)日：2004-03-16

申请号：KR1020010047490

申请日：2001-08-07

Applicant: 한국전자통신연구원

Inventor： 권동승 ,  조대순 ,  조성철 ,  이유로 ,  정인철 ,  경문건

IPC: H04W84/16

Abstract: PURPOSE: A wireless connection device for a multimedia service and a method therefor are provided to construct a TDD(Time Division Duplex) type wireless private network in a limited area using one public communication portable phone and receive a voice telephone call and an Internet service using the wireless private network. CONSTITUTION: A channel management device(210) initializes mobile terminals(110,120,130), transmits and receives subscriber association information with the mobile terminals(110,120,130), and processes the access and paging of the mobile terminals(110,120,130). A wired network interface device(220) connects to an external network and converts a signal transmitted and received to a TDD type mobile terminal. A system control unit(230) connects to the channel management device(210) and the wired network interface device(220), processes a call, manages the registration and state of subscribers, and manages and controls each device.

Abstract translation: 目的：提供一种用于多媒体服务的无线连接装置及其方法，用于使用一个公用通信便携式电话在有限的区域内构建TDD（时分双工）型无线专用网络，并使用一个公共通信便携式电话来接收语音电话呼叫和互联网服务 无线专用网络。 组成：信道管理设备（210）初始化移动终端（110,120,130），与移动终端（110,120,130）发送和接收用户关联信息，并处理移动终端（110,120,130）的接入和寻呼。 有线网络接口设备（220）连接到外部网络并将发送和接收的信号转换为TDD型移动终端。 系统控制单元（230）连接到频道管理设备（210）和有线网络接口设备（220），处理呼叫，管理用户的注册和状态，并管理和控制每个设备。

公开(公告)号：KR100391292B1

公开(公告)日：2003-07-12

申请号：KR1020010056132

申请日：2001-09-12

Applicant: 한국전자통신연구원

Inventor： 조대순 ,  정인철 ,  조성철 ,  이유로 ,  권동승 ,  경문건

IPC: H04B7/26

Abstract: PURPOSE: A device for estimating a channel in a time division bidirectional communication system is provided to use a channel estimating method from a chip unit, a symbol unit, and a time slot, thereby minimizing an error caused during channel estimation. The device is provided to use a simple averaging method, thereby reducing random FM phenomenon caused by a channel estimating error. CONSTITUTION: A converter(100) receives a transmitted RF signal, and converts the signal into a baseband signal. A matching filter(200) filters the converted signal. A multiplier(300) multiples a signal sampled by a sampling period with chip units from the filtered signal by a midamble sequence for I and Q codes. An adder(400) adds signals as many as all midamble chips from the multiplied signal. An accumulator(500) divides the added signals as many as the number of the midamble chips, and obtains an average value. A channel estimating calculator(600) calculates a channel estimating value through consecutive two time slots or one-time slot from output values of the accumulator(500).

Abstract translation: 目的：提供一种用于在时分双向通信系统中估计信道的设备，以使用来自码片单元，码元单元和时隙的信道估计方法，从而使信道估计期间引起的误差最小化。 提供该设备以使用简单的平均方法，从而减少由信道估计误差引起的随机FM现象。 构成：A转换器（100）接收发射的RF信号，并将该信号转换成基带信号。 匹配滤波器（200）对转换后的信号进行滤波。 乘法器（300）将采样周期采样的信号与来自滤波信号的码片单元乘以用于I和Q码的中间码序列。 加法器（400）将来自乘法信号的信号与所有中间码码片一样多。 累加器（500）将所添加的信号分成与中间码码片的数量一样多的数量，并且获得平均值。 信道估计计算器（600）从累加器（500）的输出值通过连续的两个时隙或一个时隙计算信道估计值。

公开(公告)号：KR1020030056550A

公开(公告)日：2003-07-04

申请号：KR1020010086781

申请日：2001-12-28

Applicant: 한국전자통신연구원

Inventor： 박수원 ,  권동승 ,  조성철 ,  정인철 ,  조대순 ,  이유로 ,  경문건

IPC: H04L7/00

CPC classification number: H04L1/0003 ,  H04L1/0026

Abstract: PURPOSE: A rate matching apparatus of a data communication system and a method thereof are provided to match channel-encoded symbols with a transmission rate appropriate for a physical layer to transmit. CONSTITUTION: According to the rate matching apparatus in a digital communication system, a channel encoder unit(220) performs a channel encoding as to input information bits. A multiplexer unit(260) performs a time division multiplexing as to symbols channel-encoded by the above channel encoder unit regularly. A parameter converter unit(1440) provides input parameter value required in the transmission rate matching. And a transmission rate matching unit(1430) reproduces symbols as much as appropriate for a physical layer by puncturing or repetition as to multiplexed channel encoded symbols and then matches them with a transmission rate appropriate for the physical layer to transmit, according to the above input parameter value.

Abstract translation: 目的：提供一种数据通信系统的速率匹配装置及其方法，以将信道编码符号与适于物理层传输的传输速率相匹配。 构成：根据数字通信系统中的速率匹配装置，信道编码器单元（220）对输入信息比特执行信道编码。 多路复用器单元（260）对由上述频道编码器单元定期频道编码的符号执行时分复用。 参数转换器单元（1440）提供传输速率匹配中所需的输入参数值。 并且传输速率匹配单元（1430）根据多路复用的信道编码符号对穿孔或重复的物理层进行适当的再现符号，然后根据上述输入，以适合于物理层的传输速率匹配它们 参数值。

公开(公告)号：KR1020030045952A

公开(公告)日：2003-06-12

申请号：KR1020010075882

申请日：2001-12-03

Applicant: 한국전자통신연구원

Inventor： 좌혜경 ,  오현서 ,  경문건

IPC: H04B7/155

CPC classification number: H04W16/28 ,  H04B7/1555 ,  H04W88/08

Abstract: PURPOSE: A reference signal generation device and a method therefor and a smart antenna base station system based on chip level beam former using the same and an operating method therefor are provided to generate a reference signal according to a channel estimator and a chip level beam former by using a decision-directed mode, thereby increasing system capacity and base station ranges by exactly performing channel estimating and beam forming processes. CONSTITUTION: An RF receiver(102) converts a received signal into a digital baseband signal. A multi path searcher(103) inputs the digital baseband signal to detect multi paths, and estimates delay time for the multi paths. A chip level beam former(105) calculates a chip level beam forming weight vector, and multiplies the vector to an input signal vector of an array antenna(101). A despreader(106) performs despreading processes on the multi paths, and separates a DPDCH(Dedicated Physical Data Channel) from a DPCCH(Dedicated Physical Control Channel). A channel estimator(107) estimates channels up to the array antenna(101). A channel compensator(108) compensates DPDCHs and DPCCHs of each rake finger(104). A rake synthesizer(109) synthesizes the DPDCHs with the DPCCHs. Deciders(DPDCH,DPCCH)(110) decide symbols of the DPDCHs and the DPCCHs. A reference signal generator(111) generates a reference signal.

Abstract translation: 目的：提供一种参考信号生成装置及其方法，以及基于使用其的芯片级波束形成器的智能天线基站系统及其操作方法，用于根据信道估计器和芯片级波束形成器生成参考信号 通过使用决策模式，从而通过精确地执行信道估计和波束形成处理来增加系统容量和基站范围。 构成：RF接收机（102）将接收到的信号转换为数字基带信号。 多路径搜索器（103）输入数字基带信号以检测多路径，并估计多路径的延迟时间。 芯片级成束器（105）计算芯片级波束形成加权矢量，并将该矢量与阵列天线（101）的输入信号矢量相乘。 解扩器（106）在多路径上执行解扩处理，并且从DPCCH（专用物理控制信道）分离DPDCH（专用物理数据信道）。 信道估计器（107）估计直到阵列天线（101）的信道。 信道补偿器（108）补偿每个耙指（104）的DPDCH和DPCCH。 耙式合成器（109）与DPCCH合成DPDCH。 决定器（DPDCH，DPCCH）（110）决定DPDCH和DPCCH的符号。 参考信号发生器（111）产生参考信号。

公开(公告)号：KR1020020037965A

公开(公告)日：2002-05-23

申请号：KR1020000067975

申请日：2000-11-16

Applicant: 한국전자통신연구원

Inventor： 박형근 ,  경문건

IPC: H01Q3/38

Abstract: PURPOSE: A down link beam forming system and a method thereof are provided to transmit a maximal power to a direction in which a desired terminal is located using a receiving array response vector obtained in a uplink. CONSTITUTION: An adaptive array modulator(105) generates a reference signal necessary to estimate a receiving array response vector. A correlator(106) estimates the receiving array response vector by obtaining an average with respect to a time of a signal obtained by multiplying the reference signal by digital receiving data. A transmission beam form weight calculator(110) removes an uplink channel component from the receiving array response vector to obtain a receiving antenna response vector. The transmission beam form weight calculator(110) calculates a transmission beam form weight using the receiving antenna response vector. A down link beam form device(107) multiplies the beam form weight by a user signal to perform a down link beam form function.

Abstract translation: 目的：提供一种下行链路波束形成系统及其方法，以使用在上行链路中获得的接收阵列响应向量来向所需终端所在的方向发送最大功率。 构成：自适应阵列调制器（105）产生估计接收阵列响应矢量所必需的参考信号。 相关器（106）通过相对于通过数字接收数据乘以参考信号而获得的信号的时间获得平均值来估计接收阵列响应向量。 传输波束形式加权计算器（110）从接收阵列响应向量中去除上行链路信道分量以获得接收天线响应向量。 发送波束形式权重计算器（110）使用接收天线响应向量计算发送波束形式权重。 下行链路波束形成装置（107）将波束形式加权乘以用户信号以执行下行链路波束形式功能。

公开(公告)号：KR100301705B1

公开(公告)日：2002-05-01

申请号：KR1019980051094

申请日：1998-11-26

Applicant: 한국전자통신연구원

Inventor： 강양기 ,  경문건 ,  박윤옥 ,  장경희 ,  김성락

IPC: H01Q21/00

Abstract: 본 발명은 소프트 핸드오프 성공률을 높이고, 안테나 이득을 증대시킬 수 있는 코드 분할 다중 접속 방식(CDMA) 이동 통신 시스템의 섹터 안테나 시스템을 제공하는데 그 목적이 있다.
본 발명에 따르면, 다수의 섹터로 분할된 셀 구조를 가지는 코드 분할 다중 접속 방식(CDMA) 이동 통신 시스템의 섹터 안테나 시스템에 있어서, 상기의 섹터 안테나 시스템은 다수의 안테나 센서를 포함하는 선형 배열 안테나(Linear Array Antenna)를 포함하고; 상기 인접하는 안테나 센서간의 거리는 소프터 핸드오프(Softer Handoff)가 발생하는 빔의 중첩 각도를 고려하여 결정하는 것을 특징으로 하는 섹터 안테나 시스템이 제공된다.

公开(公告)号：KR1020020028684A

公开(公告)日：2002-04-17

申请号：KR1020000059803

申请日：2000-10-11

Applicant: 한국전자통신연구원

Inventor： 경문건 ,  박재준

IPC: H04B7/005

CPC classification number: H04B1/712 ,  H04J13/0022

Abstract: 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).

Abstract translation: 目的：提供一种手指，具有相同功能的时空阵列接收系统，以及用于通过衰落信道补偿失真的方法，通过添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 选择器，并且通过使用芯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和用户容量。 构造：具有手指（430）的时空阵列接收系统由数字波束形成网络（400），解调器（430），耙组合器（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。 雷达组合器（430-D）接收解调器（430）的输出信号并组合符号。 硬限位器（440-B）对通过耙式组合器（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）的输出并产生参考信号。 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。

公开(公告)号：KR1020000034002A

公开(公告)日：2000-06-15

申请号：KR1019980051097

申请日：1998-11-26

Applicant: 한국전자통신연구원

Inventor： 강양기 ,  경문건 ,  박윤옥 ,  장경희 ,  김성락

IPC: H04B7/26

CPC classification number: H04W16/24 ,  H04B7/216 ,  H04W36/18

Abstract: PURPOSE: A sector antenna system of the CDMA(Code Division Multiple Access) mobile communication system is to provide a sector antenna system to proceed more efficient soft hand-off, by optimizing the cell structure divided into a plurality of sectors. CONSTITUTION: The cell structure divided into three sectors in the CDMA system is composed of four cells(A,B,C,D) and two mobile stations(100,101). Incident angles for each cell are same(alpha1 = alpha2 = alpha3) in a point(102) the boundary lines of three cells meet. But, in other boundary point(103), except for the boundary point(102), incident angles for each cell are all not in accord.

Abstract translation: 目的：CDMA（码分多址）移动通信系统的扇区天线系统是通过优化分为多个扇区的小区结构来提供扇区天线系统来进行更有效的软切换。 构成：CDMA系统中分为三个扇区的小区结构由四个小区（A，B，C，D）和两个移动站（100,101）组成。 在一个点（102）中，每个单元的入射角相同（α1=α2=α3），三个单元的边界线相遇。 但是，在其他边界点（103）中，除了边界点（102）外，每个单元的入射角都不一致。

公开(公告)号：KR1020000033999A

公开(公告)日：2000-06-15

申请号：KR1019980051094

申请日：1998-11-26

Applicant: 한국전자통신연구원

Inventor： 강양기 ,  경문건 ,  박윤옥 ,  장경희 ,  김성락

IPC: H01Q21/00

CPC classification number: H04B1/711 ,  H01Q1/246 ,  H01Q3/2605 ,  H04W36/18

Abstract: PURPOSE: A sector antenna system of a CDMA mobile communication system is provided where distance between antenna sensors is optimized. CONSTITUTION: A sector antenna system of a CDMA mobile communication system increases the success rate of soft handoff, and increases the antenna gain. The sector antenna system has a cell structure divided into a number of sectors, and includes a linear array antenna including a number of antenna sensors, and the distance between the adjacent antenna sensors is determined by considering an overlapping angle of a beam generated by a softer handoff.

Abstract translation: 目的：提供CDMA移动通信系统的扇区天线系统，其优化天线传感器之间的距离。 构成：CDMA移动通信系统的扇区天线系统提高了软切换的成功率，并增加了天线增益。 扇区天线系统具有被划分为多个扇区的小区结构，并且包括包括多个天线传感器的线性阵列天线，并且通过考虑由较软的天线传感器产生的波束的重叠角度来确定相邻天线传感器之间的距离 不可触摸。