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公开(公告)号：KR101207569B1
公开(公告)日：2012-12-03
申请号：KR1020090021248
申请日：2009-03-12
CPC classification number: H04L1/06 , H04B7/0639 , H04L1/1867 , H04L1/1893
Abstract: 본발명은재전송이필요한신호벡터에대하여유효신호대잡음비(ESNR: Effective Signal to Noise Ratio)가최대가되도록하는전처리행렬을코드북에서선택하여송신단으로피드백한다. 따라서신호벡터의재전송이이루어진후에유효신호대잡음비가최대가되기때문에, 재전송의수신오류확률을최소화할 수있다.
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公开(公告)号：KR1020120072326A
公开(公告)日：2012-07-03
申请号：KR1020110139498
申请日：2011-12-21
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A wireless transmission apparatus and method thereof are provided to reduce the installation charges of a base station by installing base stations on one location by enabling network service providers to share wireless frequency resources. CONSTITUTION: Plural service provider networks transmit signals by sharing one FDMA(Frequency Division Multiple Access) transmission method. A frequency allocation unit(110) allocates one or more carrier groups composed of continuous sub carriers to each service provider network. A signal transmission unit(120) transmits the signals by using the allocated sub carrier waves. The service provider networks effectively use restricted wireless frequency resources.
Abstract translation: 目的：提供一种无线传输装置及其方法，通过使网络服务提供商能够共享无线频率资源，通过在一个位置安装基站来减少基站的安装费用。 规定：多个服务提供商网络通过共享一个FDMA（频分多址）传输方法传输信号。 频率分配单元（110）将由连续子载波组成的一个或多个载波组分配给每个服务提供商网络。 信号发送单元（120）通过使用所分配的副载波来发送信号。 服务提供商网络有效地使用受限的无线频率资源。
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公开(公告)号：KR1020100067605A
公开(公告)日：2010-06-21
申请号：KR1020090109867
申请日：2009-11-13
Applicant: 한국전자통신연구원
IPC: H04B7/02
CPC classification number: H04B7/028 , H04B7/0456 , H04B7/0697 , H04B7/1555
Abstract: PURPOSE: An SDMA system using a single transmitting/receiving antenna wireless repeater in a system and a method thereof are provided to efficiently and economically install the system with a wireless repeater when a signal from a multi-antenna base station is transmitted. CONSTITUTION: A base station(100) selectively transmits a plurality of data stream signals to wireless repeaters in a region thorough a multi-transmitting antenna for downlink. The wireless repeaters comprise a group in a region of the base station, and deliver data stream signals to a terminal. The base station includes a channel collector and a signal processing part.
Abstract translation: 目的：提供一种在系统中使用单个发射/接收天线无线中继器的SDMA系统及其方法，用于当来自多天线基站的信号被发送时，有效地和经济地安装具有无线中继器的系统。 构成：基站（100）通过用于下行链路的多发射天线的区域中的无线中继器选择性地发送多个数据流信号。 无线中继器包括在基站的区域中的组，并将数据流信号传送到终端。 基站包括信道收发器和信号处理部分。
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公开(公告)号：KR1020090127056A
公开(公告)日：2009-12-09
申请号：KR1020090044070
申请日：2009-05-20
CPC classification number: H04L25/067 , H04L1/1812 , H04L27/0008 , H04L27/2604 , H04L27/3488
Abstract: PURPOSE: An apparatus and a method for mapping symbol are provided to improve reception performance by using a different mapping method in retransmission from a mapping method in initial transmission. CONSTITUTION: In a device, transmitted-data is encoded and a plurality of information bits and bits are generated(S410). An information bit and redundancy bit are mapped to a symbol in initial transmission according to a first mapping method(S420). The information bit and redundancy bit are mapped to a symbol in retransmission according to a second mapping method(S450). The second mapping method is different from the first mapping method. The reliability of mapping bit through the first mapping method is different from that of the second mapping method.
Abstract translation: 目的：提供一种用于映射符号的装置和方法，以通过在初始传输中的映射方法中的重传中使用不同的映射方法来提高接收性能。 构成：在设备中，对发送数据进行编码，生成多个信息位和比特（S410）。 信息位和冗余位根据第一映射方法映射到初始传输中的符号（S420）。 根据第二映射方法，将信息位和冗余位映射到重传中的符号（S450）。 第二种映射方法与第一种映射方法不同。 通过第一种映射方法映射比特的可靠性与第二种映射方法不同。
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公开(公告)号：KR1020090066179A
公开(公告)日：2009-06-23
申请号：KR1020080016823
申请日：2008-02-25
CPC classification number: H01Q3/2647 , H04B7/0413 , H04B7/0617 , Y02D70/444 , H04B7/0684 , H04B7/086
Abstract: A low power beam forming strategy using a multiple antenna is provided to prevent power consumption of a base station in case signal is transmitted to the uplink by utilizing the multiple antenna. One or more training signal is received from a plurality of base station antennas by using a plurality of mobile station antenna(S310). The downlink channel by cell site antennas and mobile station antennas uses the training signal(S320). The beam vector is generated by using the downlink channel(S350). The beam is formed by applying the beam vector on mobile station antennas(S370).
Abstract translation: 提供了使用多天线的低功率波束形成策略，以防止在通过利用多个天线将信号发送到上行链路的情况下基站的功率消耗。 通过使用多个移动台天线从多个基站天线接收一个或多个训练信号（S310）。 小区站点天线和移动台天线的下行链路信道使用训练信号（S320）。 通过使用下行链路信道来生成波束矢量（S350）。 通过在移动台天线上施加波束矢量来形成波束（S370）。
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Patent Agency Ranking
公开(公告)号：KR1020090014740A
公开(公告)日：2009-02-11
申请号：KR1020070078918
申请日：2007-08-07
CPC classification number: H04B7/2606 , H04B7/1555 , H04B7/0697 , H04B7/15507
Abstract: A method for connecting and relaying between a base station and repeaters for spatial division multiple access is provided to connect a base state with a multiple antenna with a repeater effectively, thereby increasing a sector capacity. A base station(100) including a plurality of antennas transmits data symbols including a plurality of pilot signals. The number of the pilot signal is the same as those of the number of antennas. Each pilot signal comprises an identifier of a corresponding antenna. The base station receives area information generated from a plurality of terminals positioned within a relay area based on the plurality of pilot signals. The base station checks location information with regard to the terminals based on the area information and selects a terminal which will transmit a data stream among at least one terminal located in the relay area. The base station transmits the data stream to the selected terminal.
Abstract translation: 提供了一种用于在用于空分多址的基站和中继器之间进行连接和中继的方法，以有效地将基态与具有中继器的多天线连接，从而增加扇区容量。 包括多个天线的基站（100）发送包括多个导频信号的数据符号。 导频信号的数量与天线数量相同。 每个导频信号包括相应天线的标识符。 基站基于多个导频信号，接收从位于中继区域内的多个终端产生的区域信息。 基站根据区域信息检查与终端有关的位置信息，并选择将在位于中继区域的至少一个终端中发送数据流的终端。 基站将数据流发送到所选终端。
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公开(公告)号：KR1020070105041A
公开(公告)日：2007-10-30
申请号：KR1020060036997
申请日：2006-04-25
Applicant: 한국전자통신연구원
CPC classification number: H04L25/0224 , H04L25/025 , H04L27/2628 , H04L27/2695
Abstract: A multi-carrier based mobile communication system and a channel estimation method thereof are provided to estimate precisely a channel in a high-speed mobile system by minimizing ICI(Internal Carrier Interference) using grouped pilots. A transmitting unit in a multi-carrier based mobile communication system comprises a pilot creation module(200), a spread spectrum module(100), an IDFT(Inverse Discrete Fourier Transform) module(300), and a parallel-serial conversion module(400). The pilot creation module(200) creates grouped pilots, based on previously stored pilots. The spread spectrum module(100) creates received serial data into parallel data, performs spectrum spreading for the created data, and adds the grouped pilot to them. The IDFT module(300) executes IDFT for the data received from the spread spectrum module(100). The parallel-serial conversion module(400) converts the IDFT-processed data into serial data.
Abstract translation: 提供了一种基于多载波的移动通信系统及其信道估计方法，以通过使用分组的导频最小化ICI（内部载波干扰）来精确地估计高速移动系统中的信道。 在基于多载波的移动通信系统中的发送单元包括导频创建模块（200），扩频模块（100），IDFT（逆离散傅立叶变换）模块（300）和并行串行转换模块 400）。 飞行员创建模块（200）基于先前存储的飞行员创建分组飞行员。 扩频模块（100）将接收到的串行数据创建为并行数据，对所创建的数据执行频谱扩展，并将分组的导频添加到它们中。 IDFT模块（300）对从扩频模块（100）接收的数据执行IDFT。 并行串行转换模块（400）将IDFT处理的数据转换为串行数据。
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公开(公告)号：KR1020050055854A
公开(公告)日：2005-06-14
申请号：KR1020030088893
申请日：2003-12-09
Applicant: 한국전자통신연구원
IPC: H04B17/00
Abstract: 본 발명은 통신장비의 시험 분석 장치에 관한 것이다.
본 발명은 통신장비와의 데이터 송수신을 위한 ADC/DAC와, ADC/DAC를 통해 송수신되는 데이터를 임시 저장하는 메모리부와, ADC/DAC와 메모리부를 제어하고 통신장비 시험 분석을 위한 동작을 수행하도록 하는 제어부를 포함하는 NRPB와 이와 연결하여 NRPB를 제어하는 일반 PC로 구성되며, RF 보드를 추가함으로써 유선 뿐만 아니라 무선 통신장비의 기능 시험 분석이 가능하도록 한다.
따라서, 본 발명에 따르면 통신장비 시험용 하드웨어 및 소프트웨어를 구성하여 일반 PC에 연결/장착하여 기능 시험 분석 장치를 쉽게 구현하고, 변형이 손쉽게 하여 융통성을 가지도록 한다.-
69.发明公开다중 안테나 통신 시스템을 위한 통합 셀 전송 방법 및 장치, 그리고 다중 안테나 통신 시스템을 위한 스케줄링 방법 및 장치 审中-实审用于多天线通信系统的集成小区传输方法和设备以及用于多天线通信系统的调度方法和设备
公开(公告)号：KR1020170074184A
公开(公告)日：2017-06-29
申请号：KR1020160170734
申请日：2016-12-14
Applicant: 한국전자통신연구원
Inventor： 송영석
Abstract: 기지국은, 제1 셀에속하는다수의제1 분산안테나와상기제1 셀과동일한셀 식별자를가지는제2 셀에속하는다수의제2 분산안테나를통해, 다수의하향링크레퍼런스신호를전송한다. 상기기지국은, 상기제1 셀에속하는제1 단말과상기제2 셀에속하는제2 단말로부터, 상기다수의하향링크레퍼런스신호중 적어도하나에대한피드백신호와 SRS를수신한다. 상기기지국은, 상기피드백신호와상기 SRS에기초해, 상기다수의제1 분산안테나중 적어도하나를상기제1 단말을위해클러스터링하고상기다수의제2 분산안테나중 적어도하나를상기제2 단말을위해클러스터링한다. 그리고상기기지국은, 상기제1 단말을위해클러스터링된제1 분산안테나와상기제2 단말을위해클러스터링된제2 분산안테나에동일한자원을할당한다.
Abstract translation: 基站通过属于第一小区的多个第一色散天线和属于具有与第一小区相同的小区标识符的第二小区的多个第二色散天线发送多个下行链路参考信号。 基站接收来自属于第一小区的第一终端和属于第二小区的第二终端的多个下行链路参考信号中的至少一个的反馈信号和SRS。 其中，基站被配置为基于反馈信号和SRS将用于第一终端的多个第一分布式天线中的至少一个第一分布式天线聚类，并且将多个第二分布式天线中的至少一个发射到第二终端 聚类。 基站为为第一终端聚集的第一分布式天线和为第二终端聚集的第二分布式天线分配相同的资源。
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公开(公告)号：KR1020160082928A
公开(公告)日：2016-07-11
申请号：KR1020150185739
申请日：2015-12-24
Applicant: 한국전자통신연구원
Abstract: 기지국은셀 내에위치한단말에셀 공통정보의전송여부를판단하고, 셀내에위치한단말에단말특정제어정보의전송여부를판단하며, 단말특정제어정보를전송할단말들의빔간간섭정보를토대로제1 단말그룹과제2 단말그룹으로분류한후, 셀공통제어정보와제1 단말그룹의단말특정제어정보및 제2 단말그룹의단말특정제어정보를서브프레임을통해전송한다.
Abstract translation: 基站判断是否向小区内的终端发送小区公共信息，判断是否向终端中的终端发送终端专用控制信息。 基站根据要发送终端特定控制信息的终端的波束间干扰信息，将终端分类为第一终端组和第二终端组，并且发送小区公共控制信息和终端特定 通过子帧对第一终端组的控制信息和第二终端组的终端特定控制信息进行控制。 本发明的方法和装置可以在基于毫米波的移动通信系统中有效地发送下行控制信息。
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