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公开(公告)号：KR101596957B1
公开(公告)日：2016-02-23
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: 본발명은무선통신시스템에서다중송신안테나를적용하는기술에관한것이다. 본발명은변조된심볼을이산푸리에변환하여, 주파수영역심볼을생성하는이산푸리에변환스프레드부, 상기주파수영역심볼을복수의주파수영역스트림에매핑하는리소스맵퍼, 상기각 주파수영역스트림에대하여개별적으로결정된순환천이값에따라서상기각 주파수영역스트림을순환천이(cyclic shift) 시키는순환천이부및 상기순환천이된주파수영역스트림각각을역 이산푸리에변환(IDFT: Inverse Discrete Fourier Transform)하여복수의시간영역스트림을생성하고, 상기각 시간영역스트림에상응하는안테나를이용하여상기시간영역스트림을수신장치로전송하는신호전송부를포함하는것을특징으로하는전송장치를제공한다. 본발명에따르면단일캐리어주파수분할다중접속(SC-FDMA : Single Carrier Frequency Division Multiple Access)방식의이동통신시스템에서, 최대/평균전력비율(PAPR: Peak to Average Power Ratio)을낮게유지하면서다중안테나를이용하여데이터를전송할수 있으며, 또한 직교주파수분할다중접속및 코드분할다중접속방식등을포함하는일반적인무선통신시스템서도새로운형태의송신다이버시티전송이가능하다.
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公开(公告)号：KR1020150006373A
公开(公告)日：2015-01-16
申请号：KR1020140084568
申请日：2014-07-07
Applicant: 한국전자통신연구원
CPC classification number: H04W72/04 , H04W72/1278 , H04W74/08 , H04W76/14
Abstract: 무선 통신 시스템에서 코디네이터 기반의 통신 방법 및 장치가 개시된다. 단말 간 직접 통신 방법은, 동기 신호 및 시스템 정보를 복수의 단말에 전송하는 단계, 랜덤 액세스 절차를 기반으로 복수의 단말과 무선 링크를 설정하는 단계, 복수의 단말 중 제1 단말로부터 D2D 통신을 위한 스케줄링 요청 메시지를 수신하는 단계, 스케줄링 요청 메시지를 기반으로 임의의 프레임을 전송하는데 사용되는 송신 자원을 제1 단말에 할당하는 단계, 및 복수의 단말 중 제1 단말과 D2D 통신을 수행하는 제2 단말에 의의 프레임을 수신하는데 사용되는 수신 자원을 할당하는 단계를 포함한다. 따라서, 무선 통신 시스템에서 코디네이터 기반의 D2D 통신이 효과적으로 수행될 수 있다.
Abstract translation: 公开了一种用于无线通信系统中基于协调器的通信的方法和装置。 一种用于设备到设备（D2D）通信的方法包括以下步骤：向多个终端发送同步信号和系统信息; 基于随机接入过程设置与多个终端的无线电链路; 从所述多个终端中的第一终端接收用于D2D通信的调度请求消息; 向所述第一终端分配用于基于所述调度请求消息来发送帧的传输资源; 以及将用于接收所述帧的接收资源分配给在所述多个终端中执行与所述第一终端的D2D通信的第二终端。 因此，可以有效地执行无线通信系统中的基于协调器的D2D通信。
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公开(公告)号：KR1020140075252A
公开(公告)日：2014-06-19
申请号：KR1020120143435
申请日：2012-12-11
Applicant: 한국전자통신연구원
IPC: H04W72/14
CPC classification number: H04W72/042 , H04L5/0055 , H04L27/2647
Abstract: Disclosed are a method for configuring a control channel and a method for detecting control information. The method for configuring the control channel for a mobile communication wireless resource includes the step of configuring one control channel using a plurality of tiles. The number of resource elements of the tiles is equally set or the number of resource elements of each tile is differently set. The tiles comprising one control channel are arranged on a time axis to overlap or not to overlap. The tiles are separately arranged on a frequency axis to be separated as far as possible from each other.
Abstract translation: 公开了一种用于配置控制信道的方法和用于检测控制信息的方法。 用于配置移动通信无线资源的控制信道的方法包括使用多个瓦片来配置一个控制信道的步骤。 瓦片的资源元素的数量被均等地设置，或者每个瓦片的资源元素的数量被不同地设置。 包括一个控制通道的瓦片被布置在时间轴上以重叠或不重叠。 瓦片被分开地布置在频率轴上以被尽可能彼此分离。
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公开(公告)号：KR1020140073468A
公开(公告)日：2014-06-16
申请号：KR1020140051537
申请日：2014-04-29
Applicant: 한국전자통신연구원
IPC: H04L27/26
CPC classification number: H04L5/0055 , H04L1/0027 , H04L1/0073 , H04L1/1614 , H04L1/1671 , H04L1/1854 , H04L1/1893 , H04L5/0001 , H04L5/001 , H04L5/0023 , H04L5/0048 , H04L5/0082 , H04L5/0094 , H04W72/0406 , H04W72/1289
Abstract: The present invention relates to a data transmission system using carrier aggregation. The data transmission system of a terminal in a wireless communication system according to an embodiment of the present invention includes the steps of: multiplying a plurality of data symbols included in a first slot by a first orthogonal sequence; multiplying a plurality of data symbols included in a second slot by a second orthogonal sequence; and transmitting the data symbols included in the first and second slots to a base station.
Abstract translation: 本发明涉及使用载波聚合的数据传输系统。 根据本发明的实施例的无线通信系统中的终端的数据传输系统包括以下步骤：将包括在第一时隙中的多个数据符号乘以第一正交序列; 将包括在第二时隙中的多个数据符号乘以第二正交序列; 以及将包括在第一和第二时隙中的数据符号发送到基站。
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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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Patent Agency Ranking
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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37.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,-
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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