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    • 3. 发明公开
    • 비콘 송수신 방법 및 장치
    • 发送和接收信标的方法和装置
    • KR1020160050722A
    • 2016-05-11
    • KR1020140149535
    • 2014-10-30
    • 한국전자통신연구원
    • 전영애이상재김병학이승식최상성황광일장인
    • H04W72/04H04W72/02H04W84/18
    • H04W72/0446H04W72/02H04W84/18
    • 개인무선통신네트워크(wireless personal area network)의상위 PAN 코디네이터는 TV 유휴주파수영역(TV white space, TVWS)의가용한채널중에서하나의채널을선택하고, 상기 TVWS의일부채널에해당하는공통채널의복수의추가비콘슬롯중 하나의추가비콘슬롯을상기상위 PAN 코디네이터의추가비콘슬롯으로할당하며, 할당된추가비콘슬롯에서선택된채널의정보를포함한상기상위 PAN 코디네이터의비콘프레임을송신한후 상기선택된채널을통하여상기상위 PAN 코디네이터의비콘프레임을송신한다.
    • 本发明要解决的任务涉及用于发送和接收能够有效地使用信道的信标,避免信道之间的干扰以及动态地和快速地创建网络的方法和装置。 个人无线区域网络的上层PAN协调器选择TV空白(TVWS)的可用频道之一; 将与TVWS的部分信道相对应的公共信道的附加信标时隙的一个附加信标时隙分配给上PAN协调器的附加信标时隙; 并且在发送包括从所分配的附加信标时隙中选择的信道的信息的上PAN协调器的信标帧之后,通过所选择的信道发送上层PAN协调器的信标帧。
    • 7. 发明公开
    • MB-OFDM UVWB 시스템의 패킷 검출 방법
    • 使用MB-OFDM UWB系统中的交叉相关和输入信号功率的分组检测方案
    • KR1020110071755A
    • 2011-06-29
    • KR1020090128403
    • 2009-12-21
    • 한국전자통신연구원
    • 김병학
    • H04L27/26H04W24/02
    • H04L43/04
    • PURPOSE: A packet detection method of an MB-OFDM UVWB system is provided to perform a packet detection function more effectively under various SNR and multiple paths fading channel environment, by reducing the factor of causing an error of packet detection probability according to the amplitude of an input signal. CONSTITUTION: A packet detector(4) includes an energy calculator(20), a mutual correlator(30), a power calculator(40), an amplitude normalize(50), a correlator(60), an energy value controller(70) and a detector(80). The mutual correlator calculates a mutual correlation value between a signal received according to the MB-OFDM UWB method and a preamble code value(10) of a receiver. The detector detects a valid packet.
    • 目的:提供一种MB-OFDM UVWB系统的分组检测方法,可以在各种SNR和多路径衰落信道环境下更有效地执行分组检​​测功能,通过减少导致分组检测概率误差的因素,根据 输入信号。 分组检测器(4)包括能量计算器(20),互相关器(30),功率计算器(40),振幅归一化(50),相关器(60),能量值控制器(70) 和检测器(80)。 相互相关器计算根据MB-OFDM UWB方法接收的信号和接收机的前导码值(10)之间的相互相关值。 检测器检测到有效的数据包。
    • 8. 发明公开
    • MDCM 시스템의 디매핑 장치 및 방법
    • 改造双载波调制系统中的装置和方法
    • KR1020110064547A
    • 2011-06-15
    • KR1020090121211
    • 2009-12-08
    • 한국전자통신연구원
    • 김병학
    • H04L27/26H04L29/02
    • H04L27/2649H04L27/30
    • PURPOSE: A demapping apparatus and a method thereof of an MDCM(Modified Dual Carrier Modulation) system are provided to reduce an overall system load by using an efficient and simple algorithm. CONSTITUTION: A calculation preparing part(200) performs a demapping operation by preprocessing a transmission signal modulated according to an MDCM scheme. The calculation preparing part includes an initial synchronizing device(203), an FFT device(204), a channel estimating part(206) and a channel compensating part(205). The calculation preparing part performs a channel compensation on a received signal based on the modulated signal. A demapping device(201) includes a received signal processor(207), an index search part(208) and a demapping operation unit(209).
    • 目的:提供一种MDCM(改进的双载波调制)系统的解映射设备及其方法,以通过使用有效且简单的算法来减少整个系统负载。 构成:计算准备部(200)通过对根据MDCM方式调制的发送信号进行预处理来执行解映射操作。 计算准备部分包括初始同步装置(203),FFT装置(204),信道估计部分(206)和信道补偿部分(205)。 计算准备部基于调制信号对接收信号进行信道补偿。 解映射设备(201)包括接收信号处理器(207),索引搜索部分(208)和解映射操作单元(209)。
    • 9. 发明授权
    • 초광대역 수신 장치에서 자동이득 제어기의 구동제어 장치및 그 방법
    • 超宽带接收装置驱动自动控制器的装置及方法
    • KR100826517B1
    • 2008-04-30
    • KR1020060125167
    • 2006-12-08
    • 한국전자통신연구원
    • 강규민최상성박광로김병학방준학
    • H04B7/005
    • Y02D70/44H04W52/52H04L27/01
    • An apparatus for controlling the operation of an automatic gain controller in an UWB(Ultra Wide Band) receiving apparatus and a method therefor are provided to generate an AGC operation control signal by referring to the link quality estimate of an UWB transmission channel without operating the automatic gain controller in each frame transmission to control the operation of the automatic gain controller, thereby reducing power consumption. An apparatus for controlling the operation of an automatic gain controller(330) comprises a link quality estimate generator(310) and an AGC(Automatic Gain Control) operation control signal generator(320). The link quality estimate generator calculates a link quality estimate(311) for transmitted signals. The AGC operation control signal generator determines whether the link quality estimate corresponds to any one of at least two groups(321~323) and outputs an AGC operation control signal(324~326) corresponding to the determined group. The link quality estimate is divided into at least two groups in a link quality measurement section.
    • 提供了一种用于控制UWB(超宽带)接收装置中的自动增益控制器的操作的装置及其方法,用于通过参考UWB传输信道的链路质量估计来生成AGC操作控制信号,而不操作自动增益控制 增益控制器在每帧传输中控制自动增益控制器的运行,从而降低功耗。 用于控制自动增益控制器(330)的操作的装置包括链路质量估计发生器(310)和AGC(自动增益控制)操作控制信号发生器(320)。 链路质量估计发生器计算发射信号的链路质量估计(311)。 AGC操作控制信号发生器确定链路质量估计是否对应于至少两个组(321〜323)中的任何一个,并且输出对应于所确定的组的AGC操作控制信号(324〜326)。 链路质量估计在链路质量测量部分中分为至少两组。
    • 10. 发明公开
    • 중계기와 위성과의 양방향 통신이 가능한 단말기에서송신경로를 결정하는 장치 및 방법
    • 用于确定双向通信双端口填充终端和卫星终端的传输路由的装置和方法
    • KR1020070061102A
    • 2007-06-13
    • KR1020060045186
    • 2006-05-19
    • 한국전자통신연구원
    • 유준규김병학오덕길이호진
    • H04B7/14H04B7/015H04B7/145
    • H04W88/06H04W40/12
    • An apparatus and a method for determining a transmission path by a terminal available for bi-directional communication with a gap filler and a satellite are provided to maintain a continuous communication state between a satellite and a terminal in a shadow area by comparing a signal transmitted from a satellite and that transmitted from a gap filler and selecting an optimum signal. A reception processing unit(305) measures the first SNR(Signal-to-Noise Ratio) of a signal directly received from a satellite. A reception processing unit(307) measures the second SNR of a signal received through a gap filler from the satellite. An SNR comparing unit(308) compares the first SNR and the second SNR. A transmission path determining unit determines a transmission path according to comparison result of the SNR comparing unit(308).
    • 提供了一种用于通过可用于与间隙填充器和卫星进行双向通信的终端确定传输路径的装置和方法,以通过将从卫星和卫星发送的信号进行比较来保持卫星与终端之间的连续通信状态 卫星,并从间隙填充物传输并选择最佳信号。 接收处理单元(305)测量从卫星直接接收的信号的第一信噪比(Signal-to-Noise Ratio)。 接收处理单元(307)测量从卫星通过间隙填充接收的信号的第二SNR。 SNR比较单元(308)比较第一SNR和第二SNR。 传输路径确定单元根据SNR比较单元(308)的比较结果确定传输路径。