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公开(公告)号：KR1020110069680A
公开(公告)日：2011-06-23
申请号：KR1020100047606
申请日：2010-05-20
Applicant: 한국전자통신연구원
IPC: H04W24/02
Abstract: PURPOSE: A wireless relay channel measuring device is provided to measure a wireless relay channel about a wireless link between a base station, relay and a terminal. CONSTITUTION: According to a user input, a control unit(110) establishes one operating mode among a base station mode, a relay mode or a terminal mode. According to the fixed operating mode, the control unit performs transceiving control of a signal for wireless relay channel measurement.
Abstract translation: 目的：提供一种无线中继信道测量装置，用于测量关于基站，中继和终端之间的无线链路的无线中继信道。 构成：根据用户输入，控制单元（110）在基站模式，中继模式或终端模式之间建立一个操作模式。 根据固定操作模式，控制单元执行用于无线中继信道测量的信号的收发控制。
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公开(公告)号：KR1020110068605A
公开(公告)日：2011-06-22
申请号：KR1020090125636
申请日：2009-12-16
Applicant: 한국전자통신연구원
IPC: H04B1/04
Abstract: PURPOSE: A bandpass delta sigma signal transmitter which uses a band pass delta signal modulator is provided to prevent the unnecessary quantization noise of a power amplifier. CONSTITUTION: A digital IF(Intermediate Frequency) unit(320) converts an I/Q signal which is received from a baseband to an IF signal. A multi-bit band pass delta sigma modulating unit(330) outputs the IF signal through the sampling of the IF signal. An RF up converter(340) converts the quantized IF signal into the quantized RF signal. A power amplifier(350) amplifies the quantized RF signal.
Abstract translation: 目的：提供一种使用带通三角信号调制器的带通Δ-Σ信号发射器，以防止功率放大器的不必要的量化噪声。 构成：数字IF（中频）单元（320）将从基带接收的I / Q信号转换为IF信号。 多位带通三角Σ调制单元（330）通过IF信号的采样输出IF信号。 RF上变频器（340）将量化的IF信号转换成量化的RF信号。 功率放大器（350）放大量化的RF信号。
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公开(公告)号：KR1020110067971A
公开(公告)日：2011-06-22
申请号：KR1020090124773
申请日：2009-12-15
Applicant: 한국전자통신연구원
CPC classification number: H04N21/8547 , H04J3/0685 , H04N21/2368 , H04N21/4341 , H04N21/43635 , H04N21/43637 , H04W56/00 , H04B1/38 , H04W92/04
Abstract: PURPOSE: A multiple clock synchronizing method and apparatus thereof are provided to synchronize the clock of a high layer in a multiple clock communication environment which uses heterogeneous clock. CONSTITUTION: A lower layer of a terminal performs synchronization with a lower layer of the other terminal(410). The lower layer of the terminal transmits the synchronizing signal with the higher layer of the terminal. The higher layer of the terminal stores synchronization information(420). The higher layer of the terminal receives the synchronization information from the other terminal. The higher layer of the terminal compares the received synchronization information with the stored synchronization information.
Abstract translation: 目的：提供多时钟同步方法及其装置，以在使用异构时钟的多时钟通信环境中同步高层的时钟。 构成：终端的下层与另一终端（410）的下层执行同步。 终端的下层与终端的较高层发送同步信号。 终端的较高层存储同步信息（420）。 终端的较高层接收来自另一终端的同步信息。 终端的较高层将接收到的同步信息与存储的同步信息进行比较。
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公开(公告)号：KR1020110067842A
公开(公告)日：2011-06-22
申请号：KR1020090124607
申请日：2009-12-15
Applicant: 한국전자통신연구원
IPC: H03L7/099
CPC classification number: H03L7/099
Abstract: PURPOSE: A dual-band wideband local signal generating device is provided to differently form a signal generated in an oscillator and a local signal supplied to a transceiving terminal, thereby reducing VCO pulling. CONSTITUTION: Oscillation units(101,102,103) generate a positive in-phase signal, a negative in-phase signal, a negative orthogonal phase signal, and a positive orthogonal phase signal. Frequency de-multipliers(104,105) generate an RF signal by de-multiplying frequencies of generated IP and IN signals. A poly phase filter(107) generates LO signal of IP, IN, QP, and QN. Switch units(108,109) select a high-band frequency signal or a low band frequency signal. A single side band mixer(106) generates a local signal by the sum or the subtraction of the de-multiplied signal and the selected signal.
Abstract translation: 目的：提供双频宽带本地信号发生装置以不同地形成在振荡器中产生的信号和提供给收发终端的本地信号，从而减少VCO牵引。 构成：振荡单元（101,102,103）产生正同相信号，负同相信号，负正交相位信号和正正交相位信号。 频率去乘法器（104,105）通过对生成的IP和IN信号的频率进行去乘以产生RF信号。 多相滤波器（107）产生IP，IN，QP和QN的LO信号。 开关单元（108,109）选择高频带信号或低频信号。 单个边带混合器（106）通过去倍增信号和所选信号的和或相减来产生本地信号。
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公开(公告)号：KR1020110021673A
公开(公告)日：2011-03-04
申请号：KR1020100081424
申请日：2010-08-23
Applicant: 한국전자통신연구원
CPC classification number: H04L5/0048 , H04L5/0007 , H04L25/0226 , H04B7/024
Abstract: PURPOSE: A preamble generating method and a device for a station, and a data frame generating method are provided to supply a preamble which can distinguish a channel about a plurality of station and can minimize the effect to a system. CONSTITUTION: A base sequence for channel estimation is generated(S201). Antenna channel estimation sequence about at least one antenna of a station is generates(S203). A preamble is generated by allocating at least one modification sequence in a frequency area about at least one time section(S205). The modification sequence uses a control sequence for the base sequence, the antenna channel estimation sequence, and channel estimation. The control sequence is for identifier recognition of a code word or an access point of a constant set length.
Abstract translation: 目的：提供一种前同步码生成方法和站台装置以及数据帧生成方法，用于提供可以区分多个站点的信道的前同步码，并且能够最小化对系统的影响。 构成：生成用于信道估计的基本序列（S201）。 生成关于站的至少一个天线的天线信道估计序列（S203）。 通过在至少一个时间段的频率区域中分配至少一个修改序列来生成前导码（S205）。 修改序列使用基序列的控制序列，天线信道估计序列和信道估计。 控制序列用于标识符识别码字或恒定设定长度的接入点。
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Patent Agency Ranking156.发明公开
公开(公告)号：KR1020110021671A
公开(公告)日：2011-03-04
申请号：KR1020100081367
申请日：2010-08-23
Applicant: 한국전자통신연구원
CPC classification number: H04L1/0052 , H04L1/0072 , H04L69/12 , H04L69/22 , H04L69/00 , H04L1/00 , H04L29/06 , H04L65/00 , H04W88/02
Abstract: PURPOSE: A method and an apparatus for generating a data frame, a method and an apparatus for transmitting/receiving a data frame in a wireless communication system are provided to reduce the amount of payload by supplying a data frame to firstly decode a header including segment information. CONSTITUTION: In a method and an apparatus for generating a data frame, a method and an apparatus for transmitting/receiving a data frame in a wireless communication system, a data frame comprises a FL PHY header(201), a VL PHY header(203), a ATIF(205), an HCSs(207,213), a RS parities(209,215), and a MAC header(211). 5 FL PHY headers is firstly allocated to the data frame, and then VL PHY header and the ATI are allocated to a data frame sequentially. The HCS including an error detection code is allocated to the data frame, and then RS parity including the error correction code is allocated to the data frame. The HCS and the RS parity are allocated to the data frame.
Abstract translation: 目的：提供一种用于生成数据帧的方法和装置，用于在无线通信系统中发送/接收数据帧的方法和装置，以通过提供数据帧来减少有效载荷量，以首先解码包括段的头 信息。 构成：在用于生成数据帧的方法和装置中，在无线通信系统中发送/接收数据帧的方法和装置，数据帧包括FL PHY头（201），VL PHY头（203 ），ATIF（205），HCS（207,213），RS奇偶校验（209,215）和MAC报头（211）。 首先将5个PHY PHY标头分配给数据帧，然后将VL PHY报头和ATI顺序分配给数据帧。 将包括错误检测码的HCS分配给数据帧，然后将包括纠错码的RS奇偶校验分配给数据帧。 HCS和RS奇偶校验被分配给数据帧。
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公开(公告)号：KR1020100135679A
公开(公告)日：2010-12-27
申请号：KR1020100057578
申请日：2010-06-17
Applicant: 한국전자통신연구원
CPC classification number: Y02D70/14 , H04W52/0212 , H04W36/08 , H04W68/02
Abstract: PURPOSE: A standby mode supporting method in wireless LAN-system is provided to track the location of the terminal in case the terminal moves under operation of standby mode. CONSTITUTION: A terminal transmits a request message for waiting mode start to AP(Access Point)(S200). The terminal starts the standby mode(S220). The AP transmits a paging indication message including traffic arrival information to the terminal(S230). The terminal transmits a request message for waiting mode termination to the AP(S240). The AP transmits a response message about the standby mode termination to the terminal(S250).
Abstract translation: 目的：提供无线局域网系统中的待机模式支持方式，以便在终端在待机模式下运行时跟踪终端的位置。 规定：终端向AP（接入点）发送等待模式启动请求消息（S200）。 终端启动待机模式（S220）。 AP向终端发送包括业务到达信息的寻呼指示消息（S230）。 终端向AP发送等待模式终止的请求消息（S240）。 AP向终端发送关于待机模式终止的响应消息（S250）。
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公开(公告)号：KR100999239B1
公开(公告)日：2010-12-07
申请号：KR1020070111721
申请日：2007-11-02
Applicant: 한국전자통신연구원
CPC classification number: H04L25/0204 , H04B7/0413 , H04L25/0226
Abstract: MIMO 채널 측정 방법 및 장치를 개시한다. 본 발명에 따른 실시예는, 소정 길이의 무 간섭 구간을 갖는 LS 코드를 생성하는 제1 단계 및 상기 LS 코드를 두 개의 송신 안테나를 통하여 동시에 전송하는 제2 단계를 포함하는 2N(N은 1이상의 정수)개의 송신 안테나를 통하여 MIMO 채널 측정을 위한 신호의 송신 방법을 제공한다.
MIMO, 사운더(sounder), 채널 측정-
公开(公告)号：KR100977669B1
公开(公告)日：2010-08-24
申请号：KR1020080018140
申请日：2008-02-28
Applicant: 한국전자통신연구원
CPC classification number: H04L1/1829 , H04L2001/0097
Abstract: 본 발명은 단말기에서 패킷을 기지국으로 전송하는 단계와, 상기 단말기에서 상기 기지국으로부터의 궤환 신호를 이용하여 전송된 패킷의 복호 성공 여부를 판단하는 단계 및 상기 단말기와 정해진 거리 범위내 인접 단말기의 패킷에 대한 복호 성공 여부에 따라 상기 단말기에서 상기 패킷을 상기 기지국으로 재전송하는 단계를 포함하는 협력 통신 방법을 제공한다.
협력, 통신, 복호, 재전송, 궤환 신호-
公开(公告)号：KR100972295B1
公开(公告)日：2010-07-23
申请号：KR1020080094078
申请日：2008-09-25
Applicant: 한국전자통신연구원
Abstract: FFT 기반의 채널 추정 방법이 제공된다. FFT 기반의 채널 추정 방법은 기준 신호들의 임시 주파수 응답을 추정하는 단계, 상기 추정된 임시 주파수 응답의 유효 대역과 인접한 적어도 하나의 이웃 대역에 추가 주파수 성분들을 삽입하여 IFFT(Inverse Fast Fourier Transformation) 입력을 구성하는 단계 및 상기 구성된 IFFT 입력을 기초로 채널 주파수 응답을 계산하는 단계를 포함한다.
채널, 추정, FFT, 주파수, 추가, 주파수 응답
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