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公开(公告)号：KR1020030056317A
公开(公告)日：2003-07-04
申请号：KR1020010086516
申请日：2001-12-28
Applicant: 한국전자통신연구원
IPC: H04L12/66
CPC classification number: H04L12/5601 , H04L2012/5658 , H04L2012/5664 , H04L2012/5672 , H04L2012/5681
Abstract: PURPOSE: A satellite ATM(Asynchronous Transfer Mode) interface device for transmitting Internet and video data to a satellite network and a method therefor are provided to multiplex ATM data, the Internet data, and the video data of a terrestrial network, which have inter-different traffic characteristics, and transmit the multiplexed data to a satellite. CONSTITUTION: A line interface unit(100) synchronizes a received frame or packet, and transmits a generated corresponding frame or packet to an ATM network, an Internet network, and a transmission network. A cell/frame processing unit(200) receives the frame or packet transmitted from the line interface unit(100), and generates an ATM cell or processes a valid cell and generates a new frame. A FIFO processing unit(300) receives and stores the ATM cell generated from the cell/frame processing unit(200), and grasps states of one or more FIFOs. A multiplexing/demultiplexing process unit(400) receives state grasp result values of the FIFOs from the FIFO processing unit(300), multiplexes the ATM cells according to the characteristic of a traffic, and transmits the multiplexed ATM cell. The multiplexing/demultiplexing process unit(400) demultiplexes a cell received from the outside, and transmits the demultiplexed cells to the FIFO processing unit(300).
Abstract translation: 目的：提供一种将互联网和视频数据传输到卫星网络的卫星ATM（异步传输模式）接口设备及其方法，用于复用ATM数据，互联网数据和地面网络的视频数据， 不同的业务特性，并将复用的数据发送到卫星。 构成：线路接口单元（100）同步接收到的帧或分组，并将生成的对应的帧或分组发送到ATM网络，因特网网络和传输网络。 小区/帧处理单元（200）接收从线路接口单元（100）发送的帧或分组，并生成ATM信元或处理有效小区并生成新帧。 FIFO处理单元（300）接收并存储从小区/帧处理单元（200）生成的ATM信元，并且掌握一个或多个FIFO的状态。 复用/解复用处理单元（400）从FIFO处理单元（300）接收FIFO的状态抓取结果值，根据业务的特性复用ATM信元，并发送多路复用的ATM信元。 复用/解复用处理单元（400）对从外部接收的小区进行解复用，并将解复用的小区发送到FIFO处理单元（300）。
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公开(公告)号：KR1020160091260A
公开(公告)日：2016-08-02
申请号：KR1020160005587
申请日：2016-01-15
Applicant: 한국전자통신연구원
Inventor： 최승남
IPC: H04L27/26
Abstract: 이동통신시스템에서의주파수오프셋보상방법및 그장치가제공된다. 단말이고속으로이동하는환경에서, 기지국이디지털신호로변환처리된수신신호를 FFT(Fast Fourier Transform) 처리하고, FFT 처리된신호로부터획득되는파일롯신호를이용하여주파수오프셋을추정한다. 그리고추정된주파수오프셋을이용하여 FFT 처리전에또는 FFT 처리후에수신신호의주파수오프셋을보상한다.
Abstract translation: 提供了一种用于在移动通信系统中补偿频率偏移的方法和装置。 在终端以高速移动的环境中，基站对接收信号进行快速傅里叶变换（FFT），转换为数字信号，并且通过使用从FFT执行的信号获得的导频信号来估计频率偏移。 通过使用在FFT之前或之后的估计频率偏移补偿接收信号的频率偏移。
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Patent Agency Ranking
公开(公告)号：KR1020120071128A
公开(公告)日：2012-07-02
申请号：KR1020100132737
申请日：2010-12-22
Applicant: 한국전자통신연구원
Inventor： 최승남
IPC: G06F17/14
CPC classification number: G06F17/14
Abstract: PURPOSE: A DFT device and a method thereof are provided to minimize use of hardware in DFT by perforing DFT of an uplink signal which combines a CAZAC sequence generation formula with an DFT formula. CONSTITUTION: An index table(110) stores an index value. A lookup table(120) stores a factor used for DFT(Discrete Fourier Transformation). A DFT unit(130) searches for the factor in an index table address from the lockup table. The DFT unit performs the DFT of an uplink signal by appling an equation of an exponential function mode which combines a CAZAC(Constant Amplitude Zero Auto-Correlation) sequence generation formula with an DFT formula.
Abstract translation: 目的：提供一种DFT设备及其方法，用于通过将CAZAC序列生成公式与DFT公式相结合的上行链路信号穿透DFT来最小化DFT中硬件的使用。 构成：索引表（110）存储索引值。 查找表（120）存储用于DFT（离散傅里叶变换）的因子。 DFT单元（130）从锁定表搜索索引表地址中的因子。 DFT单元通过应用指数函数模式的方程来执行上行链路信号的DFT，其将CAZAC（恒定幅度零自相关）序列生成公式与DFT公式相结合。
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公开(公告)号：KR1020110067875A
公开(公告)日：2011-06-22
申请号：KR1020090124650
申请日：2009-12-15
Applicant: 한국전자통신연구원
CPC classification number: H04L27/2626 , H04L1/0026 , H04L1/0043 , H04L1/0071 , H04L1/1607 , H04L1/1861 , H04L5/0007 , H04L27/36
Abstract: PURPOSE: An interleaving apparatus for increasing transmission efficiency and an interleaving method thereof are provided to eliminate a memory from the interleaving apparatus, thereby preventing signal processing time delay. CONSTITUTION: A determination unit(210) determines a data type of each element location of a matrix for interleaving. An interleaving processing unit(220) rearranges the order determined in a matrix for interleaving encoding data. The encoding data corresponds to the data type of each element location. The determination unit comprises an antenna related data determining unit(211) and a response data determining unit(212). The determination unit comprises a skip value calculating unit(213), a channel quality data memory reading address calculating unit(214), and a transmission data memory reading address calculating unit(215).
Abstract translation: 目的：提供一种用于提高传输效率的交织装置及其交织方法，以从交织装置中消除存储器，从而防止信号处理时间延迟。 构成：确定单元（210）确定用于交织的矩阵的每个元素位置的数据类型。 交织处理单元（220）重新排列在矩阵中确定的顺序来交织编码数据。 编码数据对应于每个元素位置的数据类型。 确定单元包括天线相关数据确定单元（211）和响应数据确定单元（212）。 确定单元包括跳过值计算单元（213），信道质量数据存储器读取地址计算单元（214）和发送数据存储器读取地址计算单元（215）。
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公开(公告)号：KR1020100069283A
公开(公告)日：2010-06-24
申请号：KR1020080127932
申请日：2008-12-16
Applicant: 한국전자통신연구원
CPC classification number: H04J13/10 , G06F9/30 , H04B1/707 , H04J13/0022 , H04J13/0029
Abstract: PURPOSE: A device for gold code generation capable of delaying sequence and operating at a high speed is provided to generate a PN sequence based on initial value including time delay information or masking schema and a plurality of PN sequences at the same time, thereby generating a gold code without waste of hardware clock. CONSTITUTION: A first sequence generator(220) generates the first PN (Pseudo-Random Noise) sequence based on the first initial value including the selected time delay information. A second sequence generating unit(230) generates the second PN sequence based on the second initial value and masking information including the selected time delay information. A code generator(240) generates a gold code using the first PN sequence and the second sequence.
Abstract translation: 目的：提供能够延迟序列和高速运行的金代码生成装置，以便基于包括时间延迟信息或掩蔽模式的初始值和多个PN序列同时生成PN序列，从而生成 金码不浪费硬件时钟。 构成：第一序列发生器（220）基于包括所选择的时间延迟信息的第一初始值产生第一PN（伪随机噪声）序列。 第二序列生成单元（230）基于第二初始值和包括所选择的时间延迟信息的掩蔽信息生成第二PN序列。 代码生成器（240）使用第一PN序列和第二序列生成金代码。
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公开(公告)号：KR100919051B1
公开(公告)日：2009-09-24
申请号：KR1020070108411
申请日：2007-10-26
Applicant: 한국전자통신연구원
Abstract: 본 발명은 광통신 모듈의 신뢰성 시험장치에 관한 것으로, 특히 광전 변환 모듈과 암전류 측정장비 사이의 인터페이스 장치에 관한 것이다.
상기 기술적 과제는 본 발명에 따라 상기 암전류 측정장비로부터 바이어스 전압을 인가받는 인터페이스부; 상기 인터페이스부를 통해 인가되는 바이어스 전압을 각각 연계되는 광전 변환 모듈로 일괄 제공하는 다수의 채널부들; 및 상기 다수의 채널부들 중 하나를 순차적으로 선택하여 선택된 채널부에 연계되는 광전 변환 모듈에 흐르는 암전류를 상기 인터페이스부를 통해 출력하는 제어부를 포함하는 것을 특징으로 하는 인터페이스 장치에 의해 달성되며, 이에 따라 측정 효율성을 향상시키고 광전 변환 모듈의 생산 단가의 상승 요인을 최소화할 수 있는 효과가 있다.
광통신, 포토 다이오드, 암전류, 신뢰성 시험-
公开(公告)号：KR1020040051907A
公开(公告)日：2004-06-19
申请号：KR1020020079601
申请日：2002-12-13
Applicant: 한국전자통신연구원
IPC: H04L12/28
CPC classification number: H04L12/5601 , H04L2012/5608 , H04Q11/0478
Abstract: PURPOSE: A satellite ATM interworking apparatus and an implementing method thereof are provided to simultaneously transmit video and Internet-related signals by a satellite as well as an ATM signal of a terrestrial network according to interworking between a satellite and the terrestrial network. CONSTITUTION: The first ATM constituting unit connected to the first terrestrial ATM network outputs ATM cell data. The second ATM constituting unit connected to the second terrestrial ATM network outputs ATM cell data. An MPEG constituting unit generates video signals of a transport stream according to MPEG(Moving Picture Experts Group)-2 standards as ATM cell data. An IPoA constituting unit generates ethernet frame data as ATM cell data and outputs it. A link enhancing unit adaptively corrects an error according to a state of a phase channel. An ATM layer processor multiplexes generated ATM cell data and outputs it to the link enhancing unit.
Abstract translation: 目的：提供一种卫星ATM互通设备及其实现方法，以便根据卫星与地面网络之间的互通，同时通过卫星以及地面网络的ATM信号同时发送视频和因特网相关信号。 构成：连接到第一地面ATM网络的第一个ATM构成单元输出ATM信元数据。 连接到第二地面ATM网络的第二ATM构成单元输出ATM信元数据。 MPEG构成单元根据MPEG（运动图像专家组）-2标准生成作为ATM信元数据的传输流的视频信号。 IPoA构成单元生成以太网帧数据作为ATM信元数据并输出。 链路增强单元根据相位通道的状态自适应地校正错误。 ATM层处理器复用生成的ATM信元数据并将其输出到链路增强单元。
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