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公开(公告)号：KR1020170007119A
公开(公告)日：2017-01-18
申请号：KR1020160081119
申请日：2016-06-28
Applicant: 한국전자통신연구원
Abstract: 송신기가상향링크제어채널을통해피드백정보를전송하는방법이제공된다. 상기송신기는, 상기피드백정보를복수의심볼로변조한다. 상기송신기는, 길이가 5 미만인스프레딩직교시퀀스(spreading orthogonal sequence)를이용해, 상기복수의심볼을스프레딩한다. 그리고상기송신기는, 상기스프레딩된심볼들을복수의 RE(resource element)에매핑한다.
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公开(公告)号：KR1020160132320A
公开(公告)日：2016-11-17
申请号：KR1020160034294
申请日：2016-03-22
Applicant: 한국전자통신연구원
Abstract: 기지국이비면허대역의채널을통해발견레퍼런스신호(DRS: discovery reference signal)를전송하는방법이제공된다. 상기기지국은, 제1 DMTC(DRS measurement timing configuration) 주기(period) 내에서제1 DRS를전송하기위하여, 상기비면허대역채널에대한제1 액세스를시도한다. 그리고상기기지국은, 상기제1 액세스를실패한경우에, 상기제1 DMTC 주기내에서제2 DRS를전송하기위하여, 상기제1 DMTC 주기보다짧은소정의주기로상기비면허대역채널에대한제2 액세스를시도한다.
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公开(公告)号：KR1020160094877A
公开(公告)日：2016-08-10
申请号：KR1020160012006
申请日：2016-01-29
Applicant: 한국전자통신연구원
Abstract: 비면허대역에대해 CCA를수행하는단계, 그리고 CCA에따라비면허대역의채널을점유하고, 채널에대한 COT 내의 TTI의위치를바탕으로자원의전송여부를결정하는단계를포함하는, 자원을전송하는방법및 장치와, 비면허대역을이용한 HARQ 재전송방법이제공된다.
Abstract translation: 提供了一种用于发送资源及其装置的方法和使用非许可频带的HARQ重传方法，该方法包括以下步骤：执行关于非许可频带的CCA; 根据共同国家评估机构占用无牌频道的频道; 以及基于相对于信道的COT中的TTI的位置来确定是否发送资源，从而提供可靠的服务。
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14.发明公开무선 자원 할당과 사용을 관리하는 방법 및 장치, 데이터를 비면허 대역의 채널을 통해 전송하는 방법 및 장치, 그리고 무선 자원 접근을 관리하는 방법 및 장치 审中-实审用于管理分配和使用无线资源的方法和装置，用于通过不允许的频带传输数据的方法和装置，以及用于管理无线电资源的访问的方法和装置
公开(公告)号：KR1020160037766A
公开(公告)日：2016-04-06
申请号：KR1020150133366
申请日：2015-09-21
Applicant: 한국전자통신연구원
Abstract: 송신기가주기성을가지는제1 데이터를비면허대역의채널을통해전송하는방법이제공된다. 상기송신기는, 상기채널을점유(occupation)하기위하여, 상기제1 데이터의전송시점및 상기채널에대한 CCA(clear channel assessment) 시점중 적어도하나를조정한다. 상기송신기는, 상기 CCA 시점에상기채널에대한 CCA를수행하여, 상기채널을점유할수 있는지를판단한다. 그리고상기송신기는, 상기채널을점유할수 있는경우에, 상기제1 데이터를상기제1 데이터의전송시점에상기채널을통해전송한다.
Abstract translation: 提供了一种用于发射机通过非授权频带的信道传输周期性第一数据的方法。 发射机调整来自第一数据的传输视点和信道上的清除信道评估（CCA）视点的至少一个，以占用信道。 发射机在CCA视点中的信道上执行CCA，并确定是否占用信道。 并且当信道可以占用时，发射机通过信道在第一数据的传输视点中发送第一数据。
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公开(公告)号：KR1020140051069A
公开(公告)日：2014-04-30
申请号：KR1020130118041
申请日：2013-10-02
Applicant: 한국전자통신연구원
IPC: H04W48/16
Abstract: An embodiment of the present invention provides a discovery signal which is broadcasted from a first terminal engaging in direct communication to a wireless channel. The discovery signal include: a first field displaying whether the discovery signal is a terminal detection signal or a service detection signal; and a second field including either of the terminal identifier information of the first terminal or the service information of a service provided by the first terminal according to the first field value.
Abstract translation: 本发明的实施例提供了一种从与无线信道直接通信的第一终端广播的发现信号。 发现信号包括：显示发现信号是终端检测信号还是服务检测信号的第一字段; 以及第二场，包括第一终端的终端标识信息或由第一终端根据第一字段值提供的服务的服务信息中的任一个。
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Patent Agency Ranking
公开(公告)号：KR1020140034096A
公开(公告)日：2014-03-19
申请号：KR1020130108718
申请日：2013-09-10
Applicant: 한국전자통신연구원
IPC: H04W48/16
Abstract: Provided is a method for searching a direct communication terminal, which comprises the steps of: receiving resource area information in a direct communication network; selecting a first resource unit with the lowest interference among a plurality of resource units included in the resource area information; broadcasting a first signal using the first resource unit; selecting a first symbol among a plurality of symbols included in a second search frame which is not a first search frame having the first resource unit; and broadcasting a second signal using the first symbol. According to one embodiment of the present invention, the direct communication terminals located in a short distance and a long distance are individually and effectively searched. [Reference numerals] (110) Step 1 frame; (AA) First step 2 frame; (BB) Second step 2 frame
Abstract translation: 提供一种用于搜索直接通信终端的方法，其包括以下步骤：在直接通信网络中接收资源区域信息; 选择包含在资源区域信息中的多个资源单元中具有最低干扰的第一资源单元; 使用所述第一资源单元广播第一信号; 在不是具有第一资源单元的第一搜索帧的第二搜索帧中包括的多个符号中选择第一符号; 以及使用第一符号来广播第二信号。 根据本发明的一个实施例，分别有效地搜索位于短距离和长距离的直接通信终端。 （附图标记）（110）步骤1框架; （AA）第一步2帧; （BB）第二步2帧
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公开(公告)号：KR101196259B1
公开(公告)日：2012-11-05
申请号：KR1020080130498
申请日：2008-12-19
Applicant: 한국전자통신연구원
CPC classification number: H04L1/0038 , H04L5/0007 , H04L27/0012 , H04L27/2666
Abstract: 본 발명은 무선 통신 시스템의 프레임 포맷을 판별하는 장치 및 방법에 관한 것으로서, 무선 통신 시스템에서 높은 정확도로 프레임의 포맷을 판별하고자 한다. 이를 위하여 본 발명에 따른 프레임 포맷을 판별하는 방법은, 프레임의 기 설정된 구간에서 동위상(in-phase) 신호 및 직교위상(quadrature) 신호의 전력을 산출하는 단계, 동위상 신호의 전력 및 직교위상 신호의 전력을 비교하는 단계, 및 비교 결과에 따라 프레임의 포맷을 판단하는 단계를 포함한다.
무선 통신, 프레임 포맷, IEEE(Institute of Electrical and Electronic Engineers) 802.11n-
公开(公告)号：KR1020120070084A
公开(公告)日：2012-06-29
申请号：KR1020100131496
申请日：2010-12-21
Applicant: 한국전자통신연구원
Inventor： 윤찬호
IPC: H04L27/01
CPC classification number: H04L25/025 , H04L25/03267
Abstract: PURPOSE: A decision feedback equalization apparatus based on LMS(Least Mean Square) training using channel estimation and a method thereof are provided to simplify complexity by using an LMS training algorithm. CONSTITUTION: A decision feedback equalization apparatus(100) comprises a channel estimation unit(110), an LMS training unit(120), and a decision feedback equalization unit(130). The channel estimation unit obtains channel estimation. The LMS training unit estimates a forward filter coefficient and a backward filter coefficient based on LMS training using the channel estimation. The decision feedback equalization unit equalizes a received signal by applying the forward filter coefficient and the backward filter coefficient estimated through the LMS training unit.
Abstract translation: 目的：提供使用信道估计的基于LMS（最小均方）训练的判决反馈均衡装置及其方法，以通过使用LMS训练算法来简化复杂度。 构成：判决反馈均衡装置（100）包括信道估计单元（110），LMS训练单元（120）和判决反馈均衡单元（130）。 信道估计单元获得信道估计。 LMS训练单元使用信道估计来估计基于LMS训练的前向滤波器系数和后向滤波器系数。 判决反馈均衡单元通过应用通过LMS训练单元估计的前向滤波器系数和反向滤波器系数来均衡接收信号。
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公开(公告)号：KR1020100071695A
公开(公告)日：2010-06-29
申请号：KR1020080130498
申请日：2008-12-19
Applicant: 한국전자통신연구원
CPC classification number: H04L1/0038 , H04L5/0007 , H04L27/0012 , H04L27/2666
Abstract: PURPOSE: An apparatus and a method for verifying a frame format in a wireless communication system are provided to improve the accuracy of the verification by comparing in-phase signal power and quadrature signal power. CONSTITUTION: A power output unit(902) outputs in-phase signal power and quadrature signal power in the pre-set section of a frame. A power comparison unit(904) compares the in-phase signal power and the quadrature signal power. A format verification unit(906) verifies a frame format based on the comparison result. A data-rate confirmation unit confirms data-rate information which is included in a frame.
Abstract translation: 目的：提供一种用于验证无线通信系统中的帧格式的装置和方法，用于通过比较同相信号功率和正交信号功率来提高验证的准确性。 构成：功率输出单元（902）在帧的预设部分中输出同相信号功率和正交信号功率。 功率比较单元（904）比较同相信号功率和正交信号功率。 格式验证单元（906）根据比较结果验证帧格式。 数据速率确认单元确认包括在帧中的数据速率信息。
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公开(公告)号：KR1020100062522A
公开(公告)日：2010-06-10
申请号：KR1020080121194
申请日：2008-12-02
Applicant: 한국전자통신연구원
CPC classification number: H04B7/005 , H04B2201/70719
Abstract: PURPOSE: A CDMA2000 based zero padding SC-FDE(Single Carrier Frequency Domain Equalizer) conversion method strong against frequency selective fading channel and a method thereof are provided to increase whole system capacity and efficiency by transmitting packet on the physical layer in an orthogonal frequency division multiplexing transmission type strong against frequency selective channel. CONSTITUTION: The front part of a modulator output is an input bit of a turbo encoder. The rear part of the modulator output keeps a systematic pattern of a parity bit sent in the turbo encoder. A space for a pilot, a DC(Direct Current) subcarrier, a guard band subcarrier and cyclic prefix etc. necessary in conversion of OFDM(Orthogonal Frequency Division Multiplexing) transmission type is secured by removal of a parity bit part of a slot. According to reduction of the slot in a transmitting end, a length of the slot necessary in a receiving end is revised in a zero padding mode.
Abstract translation: 目的：提供一种针对频率选择性衰落信道的基于CDMA2000的零填充SC-FDE（单载波频域均衡器）转换方法及其方法，以通过在正交频分区域中的物理层上发送分组来提高整个系统容量和效率 复用传输类型对频率选择信道强。 构成：调制器输出的前部是turbo编码器的输入位。 调制器输出的后部保持在turbo编码器中发送的奇偶校验位的系统模式。 OFDM（正交频分复用）传输类型的转换所需的导频空间，DC（直流）副载波，保护频带副载波和循环前缀等，通过去除时隙的奇偶校验位部分来确保。 根据发送端的时隙的减少，在零填充模式中修改接收端所需的时隙长度。
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