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公开(公告)号：KR1020100070032A
公开(公告)日：2010-06-25
申请号：KR1020080128621
申请日：2008-12-17
Applicant: 한국전자통신연구원
CPC classification number: H04W48/08 , H04W88/06 , H04B7/18532
Abstract: PURPOSE: A hybrid beaconing method is provided to increase the network transmission efficiency and control efficiency of a WPAN(Wireless Personal Area Network) by selecting a network operating scheme proper to a network condition. CONSTITUTION: An environment monitoring unit(600) collects variable by tracing network environments, and an operating mode determiner(610) determines an efficient network operating mode based on the variable collected by the environment monitoring unit. Based on the results confirmed by the environment monitoring unit, the operating mode determining unit judges the optimal operating scheme of a network. An operation executing unit(620) activates the network through a super frame structure.
Abstract translation: 目的：提供一种混合信标方法，通过选择适合网络条件的网络运行方案，提高WPAN（无线个人区域网络）的网络传输效率和控制效率。 构成：环境监测单元（600）通过跟踪网络环境来收集变量，并且操作模式确定器（610）基于由环境监视单元收集的变量来确定有效的网络操作模式。 基于由环境监测单元确认的结果，操作模式确定单元判断网络的最佳操作方案。 操作执行单元（620）通过超帧结构激活网络。
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公开(公告)号：KR100937875B1
公开(公告)日：2010-01-21
申请号：KR1020070132726
申请日：2007-12-17
Applicant: 한국전자통신연구원
CPC classification number: H04W48/12 , H04W16/14 , H04W36/06 , H04W72/042 , H04W72/0446
Abstract: 인지무선 시스템에서의 기지국의 채널전환장치 및 방법, 단말의 채널전환장치 및 방법이 개시된다. 기지국의 채널전환장치 및 방법은 원래사용자(Incumbent User)가 사용하지 않는 주파수 채널 내에 각 단말과의 데이터 송수신을 위한 슬롯을 할당하여 통신하는 인지무선시스템의 주파수 채널에서 원래사용자의 신호가 인지되면 백업채널로 전환하라는 채널전환메시지를 전송하고, 백업채널을 통해 각 단말에 할당된 주파수 채널 내의 슬롯의 할당정보를 포함하는 비콘프레임을 전송하고, 할당정보를 기초로 백업채널 내에 각 단말과의 데이터 송수신을 위한 슬롯을 할당하여 상기 각 단말과 통신함으로서 네트워크 간의 주파수 자원을 공유하고 효율적으로 사용할 수 있는 기반을 마련하고, 궁극적으로 네트워크 운용의 편의성 및 효율을 극대화할 수 있다.
인지 무선 시스템 (Cognitive radio system), WPAN(Wireless Personal area network), 비콘(Beacon), 초기화(Initialization), 레인징(Ranging), 채널전환(Channel Switching), 신속초기화(Expedite Initialization)-
公开(公告)号：KR1020090115691A
公开(公告)日：2009-11-05
申请号：KR1020090038675
申请日：2009-05-01
Applicant: 한국전자통신연구원
CPC classification number: H04L5/0023 , H04L5/003
Abstract: PURPOSE: A frequency diversity transmission/reception apparatus and a method thereof capable of transmitting data without reduction by a transceiving antenna are provided to obtain diversity gain of frequency without reducing transfer rate of the data. CONSTITUTION: A data combination unit(200) receives data signals from encoded bitstream. The data combination unit assembles the received data signal. A sub carrier allocation unit(210) allocates the symbol to the subcarrier. The symbols are mapped in subcarrier which is adjacent to the symbols. The diversity properties of the frequency are obtained without transmitting symbols.
Abstract translation: 目的：提供一种频率分集发送/接收装置及其能够通过收发天线发送数据而不减少的方法，以在不降低数据传送速率的情况下获得频率的分集增益。 构成：数据组合单元（200）从编码比特流接收数据信号。 数据组合单元组合接收到的数据信号。 子载波分配单元（210）将符号分配给副载波。 符号被映射在与符号相邻的子载波中。 在不发送符号的情况下获得频率的分集特性。
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公开(公告)号：KR1020090059824A
公开(公告)日：2009-06-11
申请号：KR1020070126877
申请日：2007-12-07
Applicant: 한국전자통신연구원
CPC classification number: H04W16/14 , H04W48/12 , H04W72/02 , H04W74/004 , H04W84/18
Abstract: A beacon retransmission device using EBS in mobile network, a beacon retransmission method and an initial connection method are provided to share frequency allocation between networks by using EBP and use the frequency allocation efficiently. A beacon frame receiver(210) receives a beacon frame from a management server managing mobile network. The beacon frame comprises the beacon information for the communications in the mobile network and EBS(Echo Beacon Slot) information. The EBS information indicates EBS(Echo Beacon Slot) allocated for the beacon retransmission among the time slots of the super frame. A beacon retransmitter(220) retransmits the Beacon information for EBS.
Abstract translation: 提供了一种在移动网络中使用EBS的信标重传装置，信标重发方法和初始连接方法，以通过使用EBP共享网络之间的频率分配并且有效地使用频率分配。 信标帧接收机（210）从管理移动网络的管理服务器接收信标帧。 信标帧包括用于移动网络中的通信的信标信息和EBS（回波信标时隙）信息。 EBS信息表示在超帧的时隙中分配用于信标重传的EBS（回波信标时隙）。 信标转发器（220）重传EBS的信标信息。
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公开(公告)号：KR1020070076538A
公开(公告)日：2007-07-24
申请号：KR1020070005448
申请日：2007-01-17
Applicant: 한국전자통신연구원
IPC: H03M13/11
CPC classification number: H03M13/1148 , H03M13/6502
Abstract: An apparatus and a method for generating jacket LDPC(Low Density Parity Check) codes of a Richardson type are provided to constitute an encoder with simple hardware by reducing the complexity of calculating the LDPC codes. An apparatus for generating jacket LDPC codes of a Richardson type includes a jacket pattern generating unit(400), an encoding-rate/encoding-length control unit(410), a zero padding/canceling unit(430), a CPM(Circulant Permutation Matrix) inserting unit(420), and an H matrix generating unit(440). The jacket pattern generating unit(400) generates a jacket matrix based on a jacket pattern in which an inverse matrix of a square matrix is represented as the inverse of each element. The encoding-rate/encoding-length control unit(410) outputs a prime number, which determines the size of CPM based on the size of the jacket matrix generated in the jacket pattern generating unit(400), to satisfy a requested encoding rate. The zero padding/canceling unit(430) inserts zero into the jacket matrix generated in the jacket pattern matrix, and generates a non-square matrix. The CPM inserting unit(420) generates a first CPM of a unit matrix which only has diagonal factors based on the prime number outputted in the encoding-rate/encoding-length control unit(410), and generates all second CPMs by shifting the first CPM corresponding to each factor of the jacket matrix. The H matrix generating unit(440) generates an H matrix of a Richardson type based on the non-square jacket matrix and the second CPM.
Abstract translation: 提供了一种用于产生理查森类型的封套LDPC（低密度奇偶校验）码的装置和方法，以通过降低计算LDPC码的复杂度来构成具有简单硬件的编码器。 一种用于产生理查森型护套LDPC码的装置，包括：外壳图案生成单元（400），编码率/编码长度控制单元（410），零填充/取消单元（430），CPM（循环排列 矩阵）插入单元（420）和H矩阵生成单元（440）。 护套图案生成单元（400）基于其中矩形矩阵的逆矩阵被表示为每个元素的倒数的封套图案来生成封套矩阵。 编码率/编码长度控制单元（410）输出素数，其基于在套衫图案生成单元（400）中生成的外套矩阵的大小来确定CPM的尺寸，以满足所请求的编码率。 零填充/取消单元（430）将零插入到在套管图案矩阵中生成的套管矩阵中，并且生成非正方形矩阵。 CPM插入单元（420）生成单位矩阵的第一CPM，该单位矩阵仅基于在编码率/编码长度控制单元（410）中输出的质数而具有对角因子，并且通过将第一CPM CPM对应于夹套矩阵的每个因子。 H矩阵生成单元（440）基于非正方形外壳矩阵和第二CPM生成理查森型的H矩阵。
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Patent Agency Ranking
公开(公告)号：KR1020210042893A
公开(公告)日：2021-04-20
申请号：KR1020210048191
申请日：2021-04-14
Applicant: 한국전자통신연구원
Abstract: 무선랜시스템에서프레임송수신방법및 장치가개시된다. 간섭/비간섭스테이션목록생성방법은, 제2 스테이션으로부터제1 프레임을수신하는단계, 제1 프레임으로부터제1 프레임의수신기주소를획득하는단계, 제1 프레임의수신을완료한시점부터미리설정된시간내에수신기주소가나타내는제3 스테이션으로부터제1 프레임의응답인제2 프레임의수신여부를기반으로, 제3 스테이션을간섭스테이션또는비간섭스테이션으로설정하는단계를포함한다. 따라서, 통신시스템의성능이향상될수 있다.
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100.发明授权프리앰블을 이용하여 특성 정보를 공유하는 통신 방법, 상기 프리앰블을 생성하는 방법, 상기 방법들이 적용되는 통신 시스템 有权一种使用前导码来共享特征信息的通信方法，一种用于生成前导码的方法，一种通信系统
公开(公告)号：KR101778304B1
公开(公告)日：2017-09-13
申请号：KR1020110053392
申请日：2011-06-02
Applicant: 한국전자통신연구원
CPC classification number: H04W72/044 , H04B7/0689 , H04L5/0023 , H04L5/0048 , H04L5/0091 , H04L27/2605 , H04L27/2613
Abstract: 무선통신시스템에서프리앰블을이용하는송신기의통신방법은상기프리앰블을위하여복수의부반송파(subcarrier)들중 둘이상의부반송파들을결정하는단계; 상기둘 이상의부반송파들에상기프리앰블의부반송파시퀀스및 부반송파위상값을매핑하는단계; 및상기둘 이상의부반송파들을이용하여상기프리앰블을전송하는단계를포함한다. 여기서, 상기프리앰블은시간도메인의미리설정된시간구간에서제1 반복패턴을갖는실수성분및 제2 반복패턴을갖는허수성분을포함하고, 상기제1 반복패턴및 상기제2 반복패턴의관계는상기무선통신시스템의특성정보를나타낸다.
Abstract translation: 用于使用在无线通信系统，包括前同步码的发送器的通信方法，包括：确定在两个所述多个子载波（子载波）的前导码的副载波; 将所述前导码的子载波序列和子载波相位值映射到所述至少两个子载波; 并且使用至少两个副载波来发送前导码。 在此，前同步码是在第一次迭代的关系，包括：实分量和具有第一重复图案的图案，并从在时域中预设的时间间隔的第二重复图案的第二重复图案的虚分量是无线电 它显示通信系统的特征信息。
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