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公开(公告)号：KR1020100070761A
公开(公告)日：2010-06-28
申请号：KR1020080129452
申请日：2008-12-18
Applicant: 한국전자통신연구원 , 인하대학교 산학협력단
CPC classification number: H04W88/04 , H04W16/26 , H04W72/085
Abstract: PURPOSE: A data transmission method and a terminal therefor of a terminal-relay station system base data communications method of the terminal - relay center system base and terminal therefor are provided to continuously supply a communication in order not to connect of a base station and with a terminal. CONSTITUTION: A channel quality information measuring unit(220) measures a channel quality information of a neighboring terminal based on 'a signal transmitted to a base station' received in a signal receiving unit. A signal transmitting unit(230) includes a channel quality information of the neighboring terminal measured in the channel quality information measuring unit to an uplink slot. The signal transmitting unit transmits the uplink slot to the base station. A controller(240) changes a mode in a terminal mode into a relay station when the signal receiving unit receives a terminal-relay station signal.
Abstract translation: 目的：提供终端 - 中继中心系统基站和终端的终端中继站系统基础数据通信方法的数据传输方法及其终端，以连续提供通信，以便不连接基站和与 一个终端。 构成：信道质量信息测量单元（220）基于在信号接收单元中接收到的“发送给基站的信号”来测量相邻终端的信道质量信息。 信号发送单元（230）包括在信道质量信息测量单元中测量的相邻终端的信道质量信息到上行链路时隙。 信号发送单元向基站发送上行链路时隙。 当信号接收单元接收终端中继站信号时，控制器（240）将终端模式中的模式改变为中继站。
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公开(公告)号：KR1020100021378A
公开(公告)日：2010-02-24
申请号：KR1020090075136
申请日：2009-08-14
Applicant: 한국전자통신연구원 , 경희대학교 산학협력단
CPC classification number: H04B7/0617 , H04B7/0417 , H04B7/0639 , Y02D70/1262 , Y02D70/444
Abstract: PURPOSE: A method for generating bean forming vector considering adjacent cell interference is provided. CONSTITUTION: A method for generating bean forming vector comprises: a step of receiving information of first and second precoding matrixes from a serving base station(200); and a step of generating the beam forming vactor by linearly binding the first and second precoding matrixes. The first precoding matrix is a precoding matrix which maximizes transfer power from a terminal to serving base station. The second precoding matrix is a precoding matrix which minimizes interference power from the terminal to adjacent base station.
Abstract translation: 目的：提供一种考虑邻接小区干扰的生成bean形成向量的方法。 构成：用于生成bean形成向量的方法包括：从服务基站（200）接收第一和第二预编码矩阵的信息的步骤; 以及通过线性地结合第一和第二预编码矩阵来生成波束形成引擎的步骤。 第一预编码矩阵是使从终端到服务基站的传送功率最大化的预编码矩阵。 第二预编码矩阵是使从终端到相邻基站的干扰功率最小化的预编码矩阵。
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公开(公告)号：KR1020090097101A
公开(公告)日：2009-09-15
申请号：KR1020090004301
申请日：2009-01-19
Applicant: 한국전자통신연구원
CPC classification number: H04L27/3433 , H03M13/25 , H03M13/258 , H03M13/356 , H04L1/006 , H04L1/0071
Abstract: An apparatus and a method for mapping a symbol are provided to symbol-map reliability of information bits and reliability of redundancy bits differently, thereby improving performance. A systematic encoder encodes transmission data(S410). An encoder outputs a plurality of information bits including added redundancy bits. A puncher punches an information bit and a redundancy bit(S420). The puncher punches only the redundancy bit except the information bit. An information interleaver interleaves the punched information bit. The redundancy interleaver interleaves a punched redundancy bit(S430). A symbol mapping device maps the interleaved information bit and the interleaved redundancy bit on symbols respectively(S440).
Abstract translation: 提供了用于映射符号的装置和方法，用于不同地对符号映射信息位的可靠性和冗余位的可靠性，从而提高性能。 系统编码器对发送数据进行编码（S410）。 编码器输出包括附加的冗余位的多个信息位。 打孔机冲击信息位和冗余位（S420）。 打孔机只打破除信息位之外的冗余位。 信息交织器交织穿孔信息位。 冗余交织器交织穿孔冗余位（S430）。 符号映射设备分别对交织的信息比特和交织的冗余比特进行映射（S440）。
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公开(公告)号：KR1020090079176A
公开(公告)日：2009-07-21
申请号：KR1020090003509
申请日：2009-01-15
CPC classification number: H04B7/024 , H04B7/0617 , H04B7/0626 , H04J11/0053 , H04B7/0413 , H04L1/0618
Abstract: A method of mitigating inter-cell interference is provided to mitigate the interference in the boundary of cell by transmitting data without cooperation between base stations or through the cooperation between base stations according to the location of a terminal and SINR. A method for mitigating the interference between cells in the base station is as following. A plurality of terminals is grouped to a plurality of groups(S270). A first data is transmitted without a cooperation of a neighboring base station in a first terminal which belongs to a first group among a plurality of groups. A second data is transmitted through a cooperation of a neighboring base station in a second terminal which belongs to a second group among a plurality of groups.
Abstract translation: 提供减轻小区间干扰的方法，通过在基站之间进行协作或通过基站与SINR的位置之间的协作来发送数据来减轻小区边界的干扰。 用于减轻基站中的小区之间的干扰的方法如下。 多个终端被分组成多个组（S270）。 在属于多个组中的第一组的第一终端中不发送相邻基站的协作来发送第一数据。 通过属于多个组中的第二组的第二终端中的相邻基站的协作来发送第二数据。
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公开(公告)号：KR1020090042508A
公开(公告)日：2009-04-30
申请号：KR1020070108305
申请日：2007-10-26
CPC classification number: H04L5/0007 , H04L5/0023 , H04L5/0048 , H04L25/0226 , H04L25/0232 , H04L27/2613
Abstract: A pilot design method, the recording medium and a transmission apparatus are provided to improve the channel estimation performance by using the existing structure of tile. An encoder encodes the data into the corresponding code rate(S210). A digital modulator modulates the data encoded into the digital modulation(S220). A sub channel allocation part assigns the subcarrier for transmitting data(S230). The sub channel allocation part assigns a part subcarrier of the tile for transmitting the pilot(S240). A reverse Furrier transform unit(IFFT) converts the data and produces the signal by a plurality of symbols(S250). A guard interval insertion unit inserts the guard interval of the time region between the plurality of symbols(S260). A transmission unit transmits the OFDMA signal including the plurality of symbols in which the guard interval is inserted to the radio channel through an antenna(S270).
Abstract translation: 提供了一种导频设计方法，记录介质和发送装置，以通过使用现有的瓦片结构来改善信道估计性能。 编码器将数据编码成相应的码率（S210）。 数字调制器调制编码为数字调制的数据（S220）。 子信道分配部分分配用于发送数据的子载波（S230）。 子信道分配部分分配用于发送导频的瓦片的子副载波（S240）。 反向傅立叶变换单元（IFFT）转换数据并通过多个符号产生信号（S250）。 保护间隔插入单元插入多个符号之间的时间区域的保护间隔（S260）。 传输单元通过天线发送包括其中保护间隔被插入无线电信道的多个符号的OFDMA信号（S270）。
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Patent Agency Ranking
公开(公告)号：KR100657508B1
公开(公告)日：2006-12-13
申请号：KR1020040063136
申请日：2004-08-11
Applicant: 한국전자통신연구원 , 주식회사 케이티 , 에스케이브로드밴드주식회사 , 삼성전자주식회사 , 주식회사 케이티프리텔 , 에스케이텔레콤 주식회사
Abstract: 본 발명은 직교 주파수 분할 다중(OFDM) 시스템에서 시변 채널에서의 채널 추정 방법에 관한 것이다. 본 발명은 시변 채널을 추정하기 위해서 프리앰블(Preamble)을 이용해 얻은 채널의 초기치를 이용한다. 이와 같이 하면, 간단하면서도 빠르게 시변 채널을 추정할 수 있으며, 시간축에서 채널을 추정함에 따라 잡음을 줄이는 효과를 볼 수 있어 추정 성능이 향상된다.
OFDM, 채널 추정, 시변 채널Abstract translation: 本发明涉及正交频分复用（OFDM）系统中的时变信道中的信道估计方法。 本发明使用通过使用前导码获得的信道的初始值来估计时变信道。 在这种情况下，可以简单快速地估计时变信道，并且可以通过估计时间轴上的信道来降低噪声，从而提高估计性能。
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公开(公告)号：KR101825015B1
公开(公告)日：2018-02-06
申请号：KR1020100133620
申请日：2010-12-23
Applicant: 한국전자통신연구원
CPC classification number: H04W28/18
Abstract: 복수의노드를포함하는이동무선네트워크시스템에서송신노드의가용자원및 수신노드의가용자원을탐색한다. 그리고송신노드의가용자원과수신노드의가용자원중에서공통적으로겹치는할당가능자원영역을찾고, 할당가능자원영역에서설정된할당조건에따라산출된할당자원개수만큼의영역을선택하여송신노드또는수신노드에할당한다.
Abstract translation: 在包括多个节点的移动无线网络系统中，搜索发送节点的可用资源和接收节点的可用资源。 搜索发送节点的可用资源和接收节点的可用资源之间通常重叠的可分配资源，根据在可分配资源区域中设置的分配条件选择对应于计算出的分配资源编号的区域，并且区域是 分配给发送节点或接收节点。
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公开(公告)号：KR1020170121705A
公开(公告)日：2017-11-02
申请号：KR1020170051283
申请日：2017-04-20
Applicant: 한국전자통신연구원
Abstract: 기지국의전송방법이제공된다. 상기기지국은, 제1 PSS(primary synchronization signal)와제1 SSS(secondary synchronization signal)를포함하는제1 디스커버리신호블록을생성한다. 상기기지국은, 제2 PSS와제2 SSS를포함하는제2 디스커버리신호블록을생성한다. 그리고상기기지국은, 상기제1 디스커버리신호블록및 상기제2 디스커버리신호블록을전송한다.
Abstract translation: 提供了一种基站的传输方法。 基站生成包括主同步信号（PSS）和辅同步信号（SSS）的第一发现信号块。 基站生成包括第二PSS和第二SSS的第二发现信号块。 并且基站发送第一发现信号块和第二发现信号块。
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公开(公告)号：KR1020170022224A
公开(公告)日：2017-03-02
申请号：KR1020150116954
申请日：2015-08-19
Applicant: 한국전자통신연구원
Inventor： 김지형
CPC classification number: H04L5/0048 , H04W4/70 , H04W76/14
Abstract: D2D(Device-to-Device) 단말은서로다른둘 이상의 D2D 단말로부터동시에제어정보를수신하면, 상기둘 이상의 D2D 단말중 적어도하나의제1 D2D 단말의제어정보를상기둘 이상의 D2D 단말중 다른적어도하나의제2 D2D 단말로전송한다.
Abstract translation: 当设备到设备（D2D）终端同时从两个或更多个不同的D2D终端接收控制信息时，D2D终端将两个或更多个D2D终端中的至少一个的第一D2D终端的控制信息发送到第二D2D终端 至少两个或更多个D2D端子中的另一个。
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