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公开(公告)号：KR1020160056286A
公开(公告)日：2016-05-19
申请号：KR1020150156182
申请日：2015-11-06
Applicant: 한국전자통신연구원
Abstract: 송신기는시간도메인과주파수도메인에서크기가일정한제1 시퀀스와이산푸리에변환(DFT: discrete Fourier transform) 벡터시퀀스를이용해, 복수의가상안테나포트중 제1 가상안테나포트를위한제1 프리코딩벡터를생성한다. 상기송신기는, 상기제1 프리코딩벡터를순환시프트(circular shifting)하여, 상기복수의가상안테나포트중 상기제1 가상안테나포트를제외한나머지가상안테나포트를위한복수의제2 프리코딩벡터를생성한다. 그리고상기송신기는, 상기복수의가상안테나포트를위한복수의제1 데이터스트림을, 상기제1 프리코딩벡터와상기복수의제2 프리코딩벡터를이용해복수의물리안테나포트에맵핑한다.
Abstract translation: 本发明涉及一种将虚拟天线最佳地映射到物理天线的方法和装置。 发射机使用具有固定大小的第一序列和在时域和频域中具有固定大小的离散傅里叶变换（DFT）矢量序列，在多个虚拟天线端口中生成第一预编码向量。 发射机通过循环移位第一预编码向量来生成除了第一虚拟天线端口之外的剩余虚拟天线端口的多个第二预编码向量。 此外，发射机使用第一预编码向量和第二预编码向量将用于虚拟天线端口的多个第一数据流映射到多个物理天线端口。
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公开(公告)号：KR1020160046243A
公开(公告)日：2016-04-28
申请号：KR1020140142054
申请日：2014-10-20
Applicant: 한국전자통신연구원
CPC classification number: H04B7/0617 , H04B7/0417 , H04B7/0695 , H04B17/373
Abstract: 송신장치는수신장치로부터제1 사운딩신호에송신장치에서수신장치로의제1 링크의전체채널이득이곱해진제1 신호를수신한후 제1 사운드신호를수신하면, 제1 신호와제1 사운딩신호를이용하여수신장치에서송신장치로의제2 링크의전체채널이득과상기제1 링크의전체채널이득을계산하며, 상기제1 링크의전체채널이득과상기제2 링크의전체채널이득을이용하여캘리브레이션계수를계산한후 캘리브레이션계수를이용하여각 안테나별전송할데이터를보정한다.
Abstract translation: 发送装置在接收到第一声音信号之后，当接收到第一声音信号时，通过使用第一信号和第一探测信号，计算第一链路的总信道增益和第二链路的总信道增益， 表示从发送装置到接收装置的第一链路的总信道增益在来自接收装置的第一声音信号中相乘; 并且通过使用第一链路的总信道增益和第二链路的总信道增益来计算校准系数之后，通过使用校准系数校正每个天线的数据。
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公开(公告)号：KR1020130019225A
公开(公告)日：2013-02-26
申请号：KR1020110081261
申请日：2011-08-16
Applicant: 한국전자통신연구원
CPC classification number: H04N13/194 , H04N13/139 , H04N13/161
Abstract: PURPOSE: A method for processing requests/demands for a seamless and high definition service in multimedia communication and a device thereof are provided to guarantee the best performance while efficiently using communication resources. CONSTITUTION: A bearer is added to a basically set bearer to improve the definition degradation and seams of a real time high definition 3D video. A frame rate of a source is reduced in half by separating an odd frame and an even frame. Each stream is separately coded. Therefore, the source is coded with different descriptions. Information is transceived through a DDC(Double Description Coding) technique. [Reference numerals] (AA) 30 fps, 15 fps are examples; (BB) Control according to a Error Event in the unit of GOP
Abstract translation: 目的：提供一种用于处理多媒体通信中无缝和高清晰度服务的请求/要求的方法及其设备，以在有效地使用通信资源的同时保证最佳性能。 构成：将承载添加到基本设置的承载中，以改善定义劣化和实时高清3D视频的接缝。 通过分离奇数帧和偶数帧，源的帧速率减少一半。 每个流分别编码。 因此，源代码具有不同的描述。 信息通过DDC（双重描述编码）技术收发。 （附图标记）（AA）30fps，15fps是示例; （BB）根据GOP单位的错误事件进行控制
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公开(公告)号：KR101231512B1
公开(公告)日：2013-02-07
申请号：KR1020080130231
申请日：2008-12-19
Applicant: 한국전자통신연구원
CPC classification number: H04L27/2662 , H04L5/0048 , H04L5/0053 , H04L27/2613 , H04L27/2614 , H04L27/2657 , H04L27/2684
Abstract: 무선통신시스템의 셀 탐색에서 주파수 오프셋에 강한 심볼 동기 획득 장치가 개시된다. 무선통신시스템의 셀 탐색에서 주파수 오프셋에 강한 심볼 동기 획득 장치는 심볼 동기 획득용 베이스 시퀀스를 생성하는 시퀀스 생성부; 상기 베이스 시퀀스를 기초로 변형 시퀀스를 생성하고, 상기 변형 시퀀스와 상기 베이스 시퀀스를 조합하여 동기 패턴을 생성하는 동기 패턴 생성부; 상기 동기 패턴을 기초로 송신 정보를 시간 및 주파수 영역에 매핑하여 송신 프레임을 생성하는 주파수 매핑부; 및 상기 송신 프레임을 송신하는 송신부를 포함한다.
동기채널, 심볼 동기, 주파수 오프셋, 시퀀스, 상관.-
公开(公告)号：KR1020120084665A
公开(公告)日：2012-07-30
申请号：KR1020120000931
申请日：2012-01-04
Applicant: 한국전자통신연구원
CPC classification number: H04W16/02 , H04W72/0406 , H04W72/0493
Abstract: PURPOSE: A cooperative multipoint transmission and reception method and system thereof are provided to maximize resource usage efficiency by allocating resources for cooperative multipoint transmission. CONSTITUTION: Each transmission point exchanges information for executing cooperative multipoint transmission with one or more other points which participate in the cooperative multipoint transmission(S220). Each transmission point allocates resources based on the resource allocation information of the other transmission points without overlapping with allocated resources of other transmission points(S230). The terminal executes the cooperative multipoint transmission by using the allocated resources(S240).
Abstract translation: 目的：提供协同多点发送和接收方法及其系统，以通过分配资源来协调多点传输来最大化资源使用效率。 构成：每个发送点与参与协作多点传输的一个或多个其他点交换用于执行协作多点传输的信息（S220）。 每个传输点基于其他传输点的资源分配信息分配资源，而不与其他传输点的分配资源重叠（S230）。 终端通过使用分配的资源来执行协作多点传输（S240）。
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Patent Agency Ranking
公开(公告)号：KR1020120083250A
公开(公告)日：2012-07-25
申请号：KR1020120061699
申请日：2012-06-08
Applicant: 한국전자통신연구원
CPC classification number: H04L27/2662 , H04L5/0048 , H04L5/0053 , H04L27/2613 , H04L27/2614 , H04L27/2657 , H04L27/2684 , H04W72/0453 , H04J2011/0096 , H04W48/16 , H04W56/0015
Abstract: PURPOSE: An apparatus for obtaining symbol timing synchronization which is strong for a frequency offset in a cell search of a wireless communication system is provided to create a synchronization pattern for obtaining symbol acquisition and allocate the synchronization pattern to a synchronization channel. CONSTITUTION: A sequence generator generates base sequence for symbol synchronization acquisition(S1001). A pattern generator creates transformation sequence based on the base sequence(S1002). The pattern generator creates synchronization pattern by combining the base sequence and the transformation sequence(S1003). A frequency mapping unit creates transmission frame based on the synchronization pattern(S1004). A transmitting unit transmits the created transmitting frame.
Abstract translation: 目的：提供一种用于获得对于无线通信系统的小区搜索中的频率偏移强的符号定时同步的装置，以创建用于获得符号获取的同步模式，并将同步模式分配给同步信道。 构成：序列发生器生成符号同步采集的基本序列（S1001）。 模式生成器基于基本序列产生变换序列（S1002）。 模式生成器通过组合基本序列和变换序列来创建同步模式（S1003）。 频率映射单元基于同步模式创建发送帧（S1004）。 发送单元发送所创建的发送帧。
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公开(公告)号：KR1020120018269A
公开(公告)日：2012-03-02
申请号：KR1020110065856
申请日：2011-07-04
Applicant: 한국전자통신연구원
CPC classification number: H04N13/194 , H04N7/52 , H04N19/597 , H04N21/234327 , H04N21/236 , H04N21/2365 , H04L1/004
Abstract: PURPOSE: A multi-dimensional layer transmission and reception apparatus and a method thereof are provided to transmit stream data and to receive multi-dimensional data in consideration of receiving signal strength, terminal performance, and power mode. CONSTITUTION: A data generating unit generates multi-dimensional data. First to Nth stream generating units(120,130,140) map the multi-dimensional data to a complex plane. The first to Nth stream generating units convert the multi-dimensional data into stream data. A multi-dimensional transmitting unit(150) transmits the stream data to each dimension which is divided into time and space. The multi-dimensional data includes two-dimensional view data.
Abstract translation: 目的：提供一种多维层发送和接收装置及其方法，用于传输流数据并考虑到接收信号强度，终端性能和功率模式来接收多维数据。 构成：数据生成单元生成多维数据。 第一到第N个流生成单元（120,130,140）将多维数据映射到复平面。 第一到第N流生成单元将多维数据转换成流数据。 多维发送单元（150）将流数据发送到分为时间和空间的每个维度。 多维数据包括二维视图数据。
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公开(公告)号：KR1020000027043A
公开(公告)日：2000-05-15
申请号：KR1019980044867
申请日：1998-10-26
Applicant: 한국전자통신연구원
IPC: H04L7/00
Abstract: PURPOSE: A junction filter synchronous gainer for a non-synchronous CDMA mobile terminal between base stations is provided to reduce a tap coefficient to need really in a half and reduce a complication degree of the hardware of a junction filter in an early synchronous gain circuit of a mobile terminal using the junction filter of TDL(Tapped Delay Line) structure. CONSTITUTION: A junction filter synchronous gainer for a non-synchronous CDMA mobile terminal between base stations includes first and second mixing units, a same phase mixing junction filter(100) and a perpendicular phase mixing junction filter(200), first and second carrier wave restoration units, an adding unit, and a junction filer control unit(500). The first and second mixing units is to mix a signal received from a base station and a carrier wave generated respectively from same phase and perpendicular phase. The same phase mixing junction filter and a perpendicular phase mixing junction filter is that a function is constant although a pattern length(M) of a constant reception signal received through the each mixing unit is reduced in M/2, correlate the same phase signal and the perpendicular phase signal respectively outputted from the mixing unit and output. The first and second carrier wave restoration units square the each correlation output outputted from the each mixing junction filter and restore a carrier wave. The adding unit adds a correlation output for the same phase signal to a correlation output for a perpendicular phase signal as a non-coherent correlation value. The junction filer control unit generates a signal to control the each mixing junction filter from the outputted correlation values, calculates values to take the movement mean of the correlation values, and searches a timing index having a maximum correlation value from this calculated values to assemble a slot synchronous.
Abstract translation: 目的：提供用于基站之间的非同步CDMA移动终端的结点滤波器同步增益器，以减少抽头系数，实际上需要一半，并降低早期同步增益电路中的结点滤波器的硬件的复杂程度 移动终端使用TDL（分接延迟线）结结点滤波器。 构成：用于基站之间的非同步CDMA移动终端的连接滤波器同步增益器包括第一和第二混合单元，相同的相位混合结合滤波器（100）和垂直相位混合结合滤波器（200），第一和第二载波 恢复单元，添加单元和连接滤波器控制单元（500）。 第一和第二混合单元是混合从基站接收的信号和分别从相同相位和垂直相位产生的载波。 相同的相位混合结合滤波器和垂直相位混合结合滤波器的功能是恒定的，尽管通过每个混合单元接收的恒定接收信号的模式长度（M）减小了M / 2，使相同的相位信号和 分别从混合单元输出并输出垂直相位信号。 第一和第二载波恢复单元使从每个混合结过滤器输出的每个相关输出平方并恢复载波。 加法单元将用于相同相位信号的相关输出添加到用于垂直相位信号的相关输出作为非相干相关值。 结型滤波器控制单元根据输出的相关值产生控制每个混合结滤波器的信号，计算取相关值的运动平均值的值，并根据该计算值搜索具有最大相关值的定时指标，以组合 槽同步。
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公开(公告)号：KR100212484B1
公开(公告)日：1999-08-02
申请号：KR1019960065743
申请日：1996-12-14
Applicant: 한국전자통신연구원
IPC: H04B7/216
Abstract: 본 발명은 이동통신망 모의실험기의 초기화 방법에 관한 것으로, 코드 분할 다중접속(Code Division Multiple Access; CDMA) 이동통신망의 서비스 품질을 평가하기 위한 모의실험기(Simulator)를 링크버짓(Link Budget)이라 명명된 규준화된 도표법을 이용하여 효율적으로 초기화시킬 수 있도록 한 이동통신망 모의실험기의 초기화 방법에 관한 것이다
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公开(公告)号：KR100194956B1
公开(公告)日：1999-06-15
申请号：KR1019960034590
申请日：1996-08-21
Applicant: 한국전자통신연구원
Abstract: 본 발명은 이동국 송신전력 조절시 페이딩에 따른 채널신호의 기울기가 급한 부분에서는 고정 증감량 전력 제어 방식과 유사하게 동작하여 기울기 저잡음 왜곡을 개선하며, 채널 신호의 마루 부분과 같이 기울기가 완만한 부분에서는 자이언트(Jayant)의 수식을 적용하여 입상 잡으을 개선하는 방법으로서, 순방향 링크의 부하 부담을 주지 않으며, 또한 구조가 간단한 반면에, 이동 무선채널에서 발생되는 페이딩을 효율적으로 극복하도록 한 코드분할다중접속(CDMA : Code Division Multiple Acces) 이동 무선 전화 시스템을 위한 적응 전력 제어방법이 개시된다.
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