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公开(公告)号：KR101142203B1
公开(公告)日：2012-05-07
申请号：KR1020080117066
申请日：2008-11-24
Applicant: 한국전자통신연구원
IPC: H04N7/015
CPC classification number: H04L27/2655 , H04L27/2656 , H04L27/2657 , H04L27/2662
Abstract: 위성 방송 프레임 신호를 복조하는 방법이 개시된다. 본 발명에 따른 DVB-S2(Digital Video Broadcasting - via Satellite, Second Generation) 규격의 위성 방송 프레임 신호를 복조하는 복조기의 복조 방법은, 심볼 타이밍을 동기화하는 단계; 심볼 타이밍 동기 후 프레임을 동기화하는 단계; 프레임 동기화 후 반송파를 복원하는 단계; 및 반송파 복원 완료 후 모드코드(MODCOD) 정보를 복호하여 프레임 구성 정보를 획득하는 단계;를 포함한다. 이에 의해 고속 복조 및 복조 데이터의 신뢰성이 확보된다.
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公开(公告)号：KR1020120040519A
公开(公告)日：2012-04-27
申请号：KR1020100101990
申请日：2010-10-19
Applicant: 한국전자통신연구원
CPC classification number: H04N21/234327 , H04N19/436 , H04N19/44 , H04N19/61 , H04N21/4302 , H04N21/4341
Abstract: PURPOSE: An adaptive playing device for scalable satellite broadcasting and a method thereof are provided to make the balance of computation complexity for a base layer stream and an enhancement layer stream by selectively performing operation modules of two decoding units. CONSTITUTION: A firsts decoding unit(230) and a second decoding unit(240) are successively processed for decoding a first video stream, a second video stream, and an audio stream. The first decoding unit and the second decoding unit comprise a plurality of operation modules which are individually controllable. The first decoding unit and the second decoding unit are operated in parallel. A control unit(250) selectively operates each of the operation module.
Abstract translation: 目的：提供一种用于可伸缩卫星广播的自适应播放设备及其方法，通过选择性地执行两个解码单元的操作模块，为基层流和增强层流的计算复杂度的平衡。 构成：连续处理第一解码单元（230）和第二解码单元（240），用于对第一视频流，第二视频流和音频流进行解码。 第一解码单元和第二解码单元包括可单独控制的多个操作模块。 第一解码单元和第二解码单元并行操作。 控制单元（250）选择性地操作每个操作模块。
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公开(公告)号：KR101074121B1
公开(公告)日：2011-10-17
申请号：KR1020080093359
申请日：2008-09-23
Applicant: 한국전자통신연구원
IPC: H04B7/26
CPC classification number: H04W36/0011 , H04W80/04 , H04W84/06 , H04W84/12
Abstract: 본발명은모바일네트워크의이종망간핸드오버장치및 방법에관한것으로, 모바일라우터의현 위치정보에따라상기모바일라우터가속한망과상이한방식의망으로의핸드오버수행이필요한지여부를상기모바일라우터에기 저장된정보에기초하여판단하는핸드오버수행여부판단단계; 및상기판단결과에따라핸드오버를수행하는핸드오버수행단계;를포함하는것을특징으로하는모바일라우터에서수행되는이종망간핸드오버수행방법에의해고속으로이동하는모바일라우터에링크트리거및 위치기반의무선/위성망간핸드오버기술을이용함으로써, 이동성검출시간을단축할수 있어역사와같은위성음영구간에서도이동속도에무관하게서비스단절을방지할수 있는효과가도출된다.
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公开(公告)号：KR1020110057029A
公开(公告)日：2011-05-31
申请号：KR1020090113566
申请日：2009-11-23
Applicant: 한국전자통신연구원
IPC: H04B1/04
CPC classification number: H04B1/0458 , H03F3/38 , H04B2001/0408
Abstract: PURPOSE: An apparatus and method for transmitting data in a terminal of a satellite communication system are provided to enhance the efficiency of a transmitter of high power consumption in satellite communication. CONSTITUTION: A baseband signal processing unit(200) modulates data signals into IF(Intermediate Frequency) signals. After amplifying a synthesized signal, the baseband signal processing unit extracts only predetermined band. A transmission signal processing unit(230) extracts phase content and amplification content from the extracted signal. After amplifying divided amplitude content and amplitude-limited phase content, the transmission signal processing unit outputs the synthesized signal as the band signal for satellite transmission.
Abstract translation: 目的：提供一种用于在卫星通信系统的终端中发送数据的装置和方法，以提高卫星通信中高功率消耗的发射机的效率。 构成：基带信号处理单元（200）将数据信号调制成IF（中频）信号。 在放大合成信号之后，基带信号处理单元仅提取预定频带。 发送信号处理单元（230）从所提取的信号中提取相位内容和放大内容。 在扩展分频振幅内容和幅度限制相位内容之后，发送信号处理单元输出合成信号作为用于卫星传输的频带信号。
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公开(公告)号：KR1020110053603A
公开(公告)日：2011-05-24
申请号：KR1020090110192
申请日：2009-11-16
Applicant: 한국전자통신연구원
IPC: H03L7/08
CPC classification number: H03L7/185 , H03L7/099 , H03L2207/12
Abstract: PURPOSE: A phase locked loop and a satellite communication terminal using the same are provided to obtain low satellite noise characteristics in high and low frequency bands by reducing the phase noises of a satellite synchronization loop. CONSTITUTION: A voltage control oscillator(407) outputs a frequency variable depending on an output terminal, and a frequency down converter(409) down-converts the frequency outputted from a voltage control oscillator according to the frequency band outputted form voltage control oscillator. A frequency divider(411) divides the frequency down-converted in the frequency down-converting unit.
Abstract translation: 目的：提供一种锁相环和使用该锁相环的卫星通信终端，以通过减少卫星同步环路的相位噪声来获得高频和低频带中的低卫星噪声特性。 构成：电压控制振荡器（407）输出根据输出端子的频率变量，降频转换器（409）根据从压控振荡器输出的频带对从压控振荡器输出的频率进行下变频。 分频器（411）将降频转换单元中的下变频分频。
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Patent Agency Ranking
公开(公告)号：KR1020100120094A
公开(公告)日：2010-11-12
申请号：KR1020100042010
申请日：2010-05-04
Applicant: 한국전자통신연구원
Inventor： 김판수 , 장대익 , 이호진 , 쵸니,스테파노 , 바넬리-코랄리,알렉산드로 , 꼬라짜,지오반니엠마누엘
CPC classification number: H04L1/0057 , H04B7/18528 , H04L1/0071 , H04L1/009 , H04L1/0625 , H04L27/2003
Abstract: PURPOSE: A method and an apparatus for transmitting/receiving data by using a satellite channel are provided to use low cost analog device in a terminal by providing excellent transmission performance under a weak communication environment. CONSTITUTION: When receiving bit data, the encoding unit performs channel encoding through an e-BCH(extend BCH) code. An interleaver(103) interleaves the encoded data through the encoding unit. A modulation unit(105) modulates interleaved data through a CPM(Continuous Phase Modulation) method which use 4 symbols, and a transmission unit(107) transmits the modulated data to a primary center.
Abstract translation: 目的：提供一种通过使用卫星信道发送/接收数据的方法和装置，通过在弱通信环境下提供优异的传输性能，在终端中使用低成本的模拟设备。 构成：当接收到位数据时，编码单元通过e-BCH（扩展BCH）码进行信道编码。 交织器（103）通过编码单元对编码数据进行交织。 调制单元（105）通过使用4个符号的CPM（Continuous Phase Modulation，连续相位调制）方法来调制交织数据，并且发送单元（107）将调制数据发送到主要中心。
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公开(公告)号：KR100976727B1
公开(公告)日：2010-08-19
申请号：KR1020080050768
申请日：2008-05-30
Applicant: 한국전자통신연구원 , 한양대학교 산학협력단
IPC: H04L27/18
CPC classification number: H04L27/3405
Abstract: 본 발명은 디지털 변조신호의 비트 매핑 장치 및 그 방법에 관한 것으로, 디지털 변조 방식의 성상도(constellation) 상에서 내부 링과 외부 링의 형태를 가지는 각 심벌에 정보 비트 매핑 시, 외부 링 내 정보 비트들을 반시계 방향으로 하나씩 쉬프트(shift)시켜 매핑함으로써, 송수신 증폭기에서 발생하는 비선형 채널 특성을 극복하여 비트 오류율을 감소시키기 위한, 디지털 변조신호의 비트 매핑 장치 및 그 방법을 제공하고자 한다.
이를 위하여, 본 발명은 디지털 변조신호의 비트 매핑 방법에 있어서, 내부 링과 외부 링의 형태를 가지는 성상도(constellation) 상에 각 비트들을 매핑하는 초기 매핑 단계; 및 상기 외부 링 내 비트들을 쉬프트(shift)시켜 비트를 최종 매핑하는 최종 매핑 단계를 포함한다.
4+12 APSK, 성상도, 비트 매핑, 쉬프트, 비선형 특성-
公开(公告)号：KR1020100062853A
公开(公告)日：2010-06-10
申请号：KR1020090030889
申请日：2009-04-09
Applicant: 한국전자통신연구원
CPC classification number: H04B7/18541 , H04B7/0404 , H04L1/0078
Abstract: PURPOSE: A moving satellite transmission and reception apparatus and a communication route are provided to control a communication route for receiving a satellite signal received from different communication route without a disconnection phenomenon of a data. CONSTITUTION: A first antenna device(111) receives a signal through a first communications route. A second antenna device(112) receives the signal through a second communications route. A data processor(101) compares a cyclic redundancy check value about a packet stream of the signal received respectively the second antenna device and the first antenna device to the per packet. The data processor changes one communication route among the first communication route and the second communication route when the packet in which the CRC value is same is detected.
Abstract translation: 目的：提供移动的卫星发射和接收装置和通信路由，以控制用于接收从不同通信路由接收的卫星信号的通信路由，而不会出现数据的断开现象。 构成：第一天线装置（111）通过第一通信路由接收信号。 第二天线装置（112）通过第二通信路由接收信号。 数据处理器（101）将分别接收到的第二天线装置和第一天线装置的信号的分组流的循环冗余校验值与每个分组进行比较。 当检测到CRC值相同的分组时，数据处理器在第一通信路由和第二通信路由之间改变一个通信路由。
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公开(公告)号：KR1020100055855A
公开(公告)日：2010-05-27
申请号：KR1020080114739
申请日：2008-11-18
Applicant: 한국전자통신연구원 , 서강대학교산학협력단
CPC classification number: H04L27/2656 , H04L7/042 , H04L27/2676
Abstract: PURPOSE: A correlation apparatus for the strong synchronous acquisition and method uses the distance value about the receiving symbol. The frequency error can be over gotten. CONSTITUTION: The receiving symbol phase difference calculation unit(201) obtains the receiving symbol phase difference between the delay receiving symbol delaying the receiving symbol and the receiving symbol. The correlation symbol phase difference calculation unit(203) obtains the correlation symbol phase difference between the lag correlation symbol delaying the correlation symbol and the correlation symbol. The gradation correlator(205) uses the receiving symbol phase difference and correlation symbol phase difference.
Abstract translation: 目的：强同步采集和方法的相关设备使用关于接收符号的距离值。 频率误差可以超过。 构成：接收符号相位差计算单元（201）获得延迟接收符号延迟接收符号和接收符号之间的接收符号相位差。 相关符号相位差计算单元（203）获得延迟相关符号和相关符号的滞后相关符号之间的相关符号相位差。 灰度相关器（205）使用接收符号相位差和相关符号相位差。
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公开(公告)号：KR1020100034304A
公开(公告)日：2010-04-01
申请号：KR1020080093359
申请日：2008-09-23
Applicant: 한국전자통신연구원
IPC: H04B7/26
CPC classification number: H04W36/0011 , H04W80/04 , H04W84/06 , H04W84/12 , H04W64/00
Abstract: PURPOSE: An apparatus and a method for performing handover between different networks using location information and a mobile router are provided to supply an internet service in which a session is not disconnected to a fixed node. CONSTITUTION: A handover starting information storage unit(320) stores handover execution location information. A handover execution determining unit(330) determines whether a mobile router needs handover execution into a network of a different type from a connection network based on information stored in the handover starting information storage unit according to current location information grasped in the location information grasping unit. A handover performing unit(340) performs handover according to the determination result.
Abstract translation: 目的：提供使用位置信息和移动路由器在不同网络之间执行切换的装置和方法，以提供其中会话未被断开到固定节点的因特网服务。 构成：切换起动信息存储部（320）存储切换执行位置信息。 切换执行确定单元（330）根据在位置信息获取单元中掌握的当前位置信息，基于存储在切换起始信息存储单元中的信息来确定移动路由器是否需要切换执行到与连接网络不同类型的网络 。 切换执行单元（340）根据确定结果执行切换。
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