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公开(公告)号：KR101268251B1
公开(公告)日：2013-05-28
申请号：KR1020100023474
申请日：2010-03-16
Applicant: 한국전자통신연구원
IPC: H04B7/14
CPC classification number: H04B7/2606 , H04B7/15542 , H04B7/15557 , H04W72/0426 , H04W88/085
Abstract: 본발명은, 릴레이의송수신전환시간, 신호전달시간중 적어도하나를고려하여백홀하향링크및 백홀상향링크의프레임구성과전송타이밍을결정하고그에따라송수신을수행함으로써, 릴레이가존재하는무선통신시스템에서릴레이와기지국과의데이터송수신을효과적으로수행할수 있다.
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公开(公告)号：KR1020100105451A
公开(公告)日：2010-09-29
申请号：KR1020100023474
申请日：2010-03-16
Applicant: 한국전자통신연구원
IPC: H04B7/14
CPC classification number: H04B7/2606 , H04B7/15542 , H04B7/15557 , H04W72/0426 , H04W88/085
Abstract: PURPOSE: A method for transmitting data in a wireless communication system including a relay is provided to determine frame configuration and transmission timing of a backhaul downlink and a backhaul uplink in consideration of at least one of transceiving switching time and signal transmitting time to transceive data, thereby effectively transceiving data between the relay and the base station in the wireless communication system. CONSTITUTION: A base station transmits a backhaul downlink signal according to frame configuration of backhaul downlink and timing of the backhaul downlink determined in consideration of at least one of transceiving switching time and signal transmitting time of a relay station. The relay receives the backhaul downlink signal according to the frame configuration of the backhaul downlink and the timing.
Abstract translation: 目的：提供一种在包括中继的无线通信系统中发送数据的方法，以便考虑收发切换时间和收发数据的信号发送时间中的至少一个来确定回程下行链路和回程上行链路的帧配置和传输定时， 从而在无线通信系统中有效地在中继站和基站之间收发数据。 构成：考虑到中继站的收发切换时间和信号发送时间中的至少一个，基站根据回程下行链路的帧配置和回程下行链路的定时发送回程下行链路信号。 继电器根据回程下行链路的帧配置和定时接收回程下行链路信号。
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33.发明公开
公开(公告)号：KR1020100084483A
公开(公告)日：2010-07-26
申请号：KR1020100003839
申请日：2010-01-15
Applicant: 한국전자통신연구원 , 중앙대학교 산학협력단
CPC classification number: H04B7/15507 , H04L5/0048 , H04L5/0053 , H04L25/24 , H04L27/2613 , H04L27/262 , H04L27/2655 , H04W56/001
Abstract: PURPOSE: A device and a method for transmitting a relay-synchronization signal in an LTE-A system based on orthogonal frequency division with a multi hop relay are provided to prevent complexity for detecting an R-SS(Relay-Synchronization Signal) from drastically increasing. CONSTITUTION: An SS generating unit(610) generates an SS. The SS comprises an SSS(Secondary Synchronization Signal) and a PSS(Primary Synchronization Signal) synchronized with a terminal. An R-SS generating unit(620) generates an R-PSS(Relay-Primary Synchronization Signal) using a PSS. An R-PSS has the same PAPR(Peak-to-Average Power Ratio) property as the PSS. The R-PSS includes a low correlation property.
Abstract translation: 目的：提供一种基于与多跳中继器的正交频分复用的LTE-A系统中发送中继同步信号的装置和方法，以防止检测R-SS（中继同步信号）的复杂性急剧增加 。 构成：SS生成单元（610）生成SS。 SS包括与终端同步的SSS（辅同步信号）和PSS（主同步信号）。 R-SS生成单元（620）使用PSS生成R-PSS（中继主同步信号）。 R-PSS具有与PSS相同的PAPR（峰均功率比）特性。 R-PSS包括低相关性。
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公开(公告)号：KR1020100004051A
公开(公告)日：2010-01-12
申请号：KR1020090057692
申请日：2009-06-26
Applicant: 한국전자통신연구원
CPC classification number: H04B7/12 , H04L1/0042 , H04L1/04 , H04L5/0023 , H04L5/0044 , H04L25/03159 , H04L25/03866 , H04L2025/03414
Abstract: PURPOSE: A method and an apparatus for transmitting and receiving transmission antenna diversity using cyclic subcarrier shift are provided to use multi antennas while keeping a PAPR(Peak to Average Power Ratio) low, thereby transmitting data in a form for providing transmission diversity. CONSTITUTION: A DFT(Discrete Fourier Transform) spread unit(110) performs DFT on a modulated symbol. The spread unit generates frequency domain symbols. A resource mapper(120) maps each frequency domain symbol on a plurality of frequency domain streams. Cyclic shift units cyclically transits each frequency domain stream. Signal transmission units transmit the time domain streams.
Abstract translation: 目的：提供一种使用循环子载波移位发送和接收发送天线分集的方法和装置，以使PAPR（峰均功率比）保持较低，从而以提供发送分集的形式发送数据。 构成：DFT（离散傅立叶变换）扩展单元（110）对调制符号执行DFT。 扩展单元生成频域符号。 资源映射器（120）映射多个频域流上的每个频域符号。 循环移位单元循环地转换每个频域流。 信号传输单元传输时域流。
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公开(公告)号：KR100901760B1
公开(公告)日：2009-06-11
申请号：KR1020070113568
申请日：2007-11-08
Applicant: 한국전자통신연구원 , 동국대학교 산학협력단
CPC classification number: H04L1/206
Abstract: 순환 지연 다이버시티(CDD, cyclic delay diversity)에 관한 것으로서, 특히 최적의 순환 지연 값을 갖는 순환 지연 다이버시티 방법 및 장치를 개시한다.
다이버시티 차수에 따른 신호대잡음간섭 함수를 결정하는 단계와, 채널 추정 오류 분산 함수를 결정하는 단계 및 상기 신호대잡음간섭 함수 및 채널 추정 오류 분산 함수에 따라서 시스템에 요구되는 SINR을 결정하는 단계를 포함하는 최적의 순환 지연 값을 결정하는 방법을 제공한다.
CDD(cyclic delay diversity), SINR, 순환 지연,-
Patent Agency Ranking
公开(公告)号：KR1020080052133A
公开(公告)日：2008-06-11
申请号：KR1020070018976
申请日：2007-02-26
Applicant: 한국전자통신연구원
CPC classification number: H04L27/2614 , H04L5/0007 , H04L25/0204 , H04L25/0224 , H04L25/0226 , H04L27/2602 , H04L27/2607 , H04L27/2613 , H04L5/0048 , H04L5/0032 , H04L27/2675
Abstract: An apparatus and a method for transmitting/receiving a pilot signal of a wireless communication system are provided to support at least two channels in an SC-FDMA system simultaneously by maintaining frequency resolution of a frequency area. An apparatus for transmitting a pilot signal of a wireless communication system comprises a digital Fourier transformer(213), a pilot signal generator(220), a time division multiplexer(218), and a symbol and sub-carrier mapping unit(214). The digital Fourier transformer performs a digital Fourier transform for a data signal. The pilot signal generator generates a pilot signal shifted for a predetermined interval in a frequency area. The time division multiplexer performs time division multiplexing for the pilot signal and the transformed data signal and transmits the time division multiplexed signal through an antenna. The symbol and sub-carrier mapping unit determines a sub-carrier transmitting the pilot signal and the data signal and maps the data signal to the determined sub-carrier.
Abstract translation: 提供用于发送/接收无线通信系统的导频信号的装置和方法，以通过维持频率区域的频率分辨率来同时支持SC-FDMA系统中的至少两个信道。 用于发送无线通信系统的导频信号的装置包括数字付里叶变换器（213），导频信号发生器（220），时分复用器（218）和符号和子载波映射单元（214）。 数字傅立叶变换器对数据信号进行数字傅里叶变换。 导频信号发生器产生在频率区域中移动预定间隔的导频信号。 时分复用器对导频信号和变换后的数据信号进行时分复用，并通过天线发送时分复用信号。 符号和子载波映射单元确定发送导频信号和数据信号的子载波，并将数据信号映射到确定的子载波。
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公开(公告)号：KR1020080042680A
公开(公告)日：2008-05-15
申请号：KR1020070102610
申请日：2007-10-11
Applicant: 한국전자통신연구원
CPC classification number: H04L5/0007 , H04J11/00 , H04L5/0028 , H04L5/0048 , H04L25/0226 , H04L27/0008 , H04L27/2607 , H04L27/262 , H04L27/261 , H04L27/2628
Abstract: An apparatus and a method of pilot transmission to coexist OFDMA(Orthogonal Frequency Division Multiple Access) and SC-FDMA(Single Carrier-Frequency Division Multiple Access) are provided to use a pilot of a proper form according to a channel environment by allowing a pilot incorporated in an SC-FDMA symbol to have a flexible pattern. An apparatus of pilot transmission to coexist OFDMA and SC-FDMA includes a pilot inserting device(63), an up-sampling processing device(65), an interpolation processor(66), and a cyclic prefix(CP) inserting device(68). The pilot inserting device inserts a pilot into a symbol by receiving pilot information. The up-sampling processing device performs up-sampling parallel data inputted from a serial/parallel converter(64). The interpolation processor performs interpolation for symbols up-sampled by the up-sampling processing device. The cyclic prefix inserting device inserts a cyclic prefix symbol into output data of a parallel/serial converter(67).
Abstract translation: 提供了一种用于共存OFDMA（正交频分多址）和SC-FDMA（单载波 - 频分多址）的导频传输的装置和方法，以便根据信道环境使用适当形式的导频， 并入SC-FDMA符号以具有灵活的图案。 用于共存OFDMA和SC-FDMA的导频传输装置包括导频插入装置（63），上采样处理装置（65），内插处理器（66）和循环前缀（CP）插入装置（68） 。 导频插入装置通过接收导频信息将导频插入符号。 上采样处理装置执行从串行/并行转换器（64）输入的并行数据并行数据。 内插处理器对由上采样处理装置进行上采样的符号进行插值。 循环前缀插入装置将循环前缀符号插入到并行/串行转换器（67）的输出数据中。
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公开(公告)号：KR101840642B1
公开(公告)日：2018-03-21
申请号：KR1020120059324
申请日：2012-06-01
Applicant: 한국전자통신연구원
IPC: H04B7/04
CPC classification number: H04L5/0048 , H04B7/024 , H04B7/063 , H04B7/0632 , H04B7/0639 , H04L5/0035 , H04L5/0057 , H04L5/0073 , H04W8/26 , H04W52/146 , H04W52/241 , H04W88/085
Abstract: 분산안테나무선통신시스템및 그방법이개시된다. 복수의포인트들이서로다른물리계층셀 아이디를가지는경우또는복수의포인트들이동일한셀에속하고동일한물리계층셀 아이디를가지는분산안테나무선통신환경에서복수의포인트들을이용한하향링크및 상향링크통신을위한물리채널및 참조신호송수신방법을제공하고, 가상셀 아이디를도입하여상향링크및 하향링크에서물리채널및 참조신호를전송하는방법을제공하며, 복수의포인트들을이용한협력전송방법을제공함으로써분산안테나무선통신시스템의통신효율을향상시킬수 있다.
Abstract translation: 公开了一种分布式天线无线通信系统和方法。 当多个点具有不同的物理层小区ID或者当多个点属于同一小区并且具有相同的物理层小区ID时，在分布式天线无线通信环境中使用多个点进行下行链路和上行链路通信的物理层 通过引入虚拟小区ID和使用多个点的协同传输方法来发送和接收信道和参考信号的方法以及用于在上行链路和下行链路中发送物理信道和参考信号的方法， 系统的通信效率可以提高。
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公开(公告)号：KR1020170055911A
公开(公告)日：2017-05-22
申请号：KR1020160147707
申请日：2016-11-07
Applicant: 한국전자통신연구원
IPC: H04L5/00
Abstract: 짧은전송시간간격(short transmission time interval, sTTI) 단위로수시한제어채널을디코딩하는단계, 그리고디코딩결과를바탕으로단말과매칭하는제1 제어채널이결정되면, 제1 제어채널을포함하는짧은자원블록세트(short Resource Block Set, sRBS)에서데이터를수신하는단계를통해서데이터를수신하는방법및 장치가제공된다.
Abstract translation: 短的传输时间间隔（短的传输时间间隔，sTTI）在任何时间为单位进行解码的控制信道，并且所述第一控制信道之后被确定为基于解码结果的终端匹配，短资源包括第一控制信道 提供了一种用于通过在短资源块集合（sRBS）中接收数据的步骤来接收数据的方法和装置。
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