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公开(公告)号：KR101774558B1
公开(公告)日：2017-09-05
申请号：KR1020110064855
申请日：2011-06-30
Applicant: 한국전자통신연구원
Abstract: 직교주파수다중접속(Orthogonal Frequency Division Multiple Access) 방식의무선메쉬네트워크에서통신노드는한 홉노드및 두홉 노드의다음송신시점의정보를상기한 홉노드를통해수신하여한 홉노드및 두홉 노드의다음송신구간을계산하고, 한홉 노드및 두홉 노드의다음송신구간을이용하여다음송신시점을결정한후에다음송신시점의정보를한 홉노드로부터수신한한 홉노드의송신시점의정보와함께통신노드의한 홉노드로전송한다.
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公开(公告)号：KR101749326B1
公开(公告)日：2017-07-04
申请号：KR1020110033029
申请日：2011-04-11
Applicant: 한국전자통신연구원 , 연세대학교 산학협력단
Abstract: 무선메쉬네트워크에서의노드에의한통신방법이제공된다. 상기방법은네트워크에포함된다른노드간거리를측정하고, 상기다른노드간거리를기반으로상기노드의수신단에서의 SINR(signal to noise and interference ratio)를획득하고, 상기다른노드간링크에대한 BER(bit error rate) 및캐퍼시티(capacity)를상기 SINR의확률적분포를기반으로획득하고, 상기다른노드의수를획득하고, 상기 BER, 상기캐퍼시티및 상기다른노드의수를기반으로코스트파라미터(cost parameter)를획득하고, 상기코스트파라미터에가중팩터(weight factor)를적용하여가중된링크코스트파라미터를획득하고및 상기가중된코스트파라미터및 최소코스트라우팅알고리듬(minimum cost routing algorithm)을기반으로라우팅경로를설정하는것을포함한다.
Abstract translation: 提供了无线网状网络中的节点的通信方法。 该方法包括测量包括在网络中的节点之间的距离，基于节点间距离获得节点的接收节点处的信噪比（SINR） 基于SINR的概率分布的错误率和容量，获得其他节点的数量，基于BER，其他节点的容量和数量计算成本参数， 通过将权重因子应用于成本参数来获得加权链路成本参数，并且基于加权成本参数和最小成本路由算法来设置路由路径 它包括。
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公开(公告)号：KR101718496B1
公开(公告)日：2017-03-21
申请号：KR1020090102497
申请日：2009-10-27
CPC classification number: H04W52/0229 , H04L5/001 , H04L5/008 , H04L5/0098 , H04L5/02 , H04L27/2601 , H04W36/24 , H04W52/0206 , H04W52/0216 , H04W72/042 , H04W72/0453 , Y02D70/20
Abstract: 다중반송파를지원하는통신시스템의다중반송파관리장치는수면기간으로진입하고자하는단말로주 반송파의변경을요청하고, 수면기간동안변경한주 반송파를통해제어메시지를단말로전송한다.
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公开(公告)号：KR101624331B1
公开(公告)日：2016-06-08
申请号：KR1020100040148
申请日：2010-04-29
IPC: H04B7/26
Abstract: 이동통신시스템에서제어국은복수개의기지국들에대한위치정보를바탕으로증설된기지국에대한위치정보에따라복수개의기지국들중 증설된기지국과인접하다고예측되는기지국을결정하여증설된기지국과인접하다고예측한기지국에대한후보리스트를생성하고, 후보리스트에포함된기지국에대한스캐닝정보를바탕으로증설된기지국과인접한기지국을결정하여증설된기지국과인접한기지국에대한인접기지국리스트를생성한다.
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公开(公告)号：KR1020150055207A
公开(公告)日：2015-05-21
申请号：KR1020130137104
申请日：2013-11-12
Applicant: 한국전자통신연구원 , 연세대학교 산학협력단
Abstract: 무선이동메쉬네트워크에서스케줄링노드는복수의메쉬노드간형성된복수의링크에대하여서로다른두 링크에서같은시간에데이터전송의가능여부를나타내는링크양립성행렬을생성하고, 링크양립성행렬을이용하여링크기반방향성전송스케줄링을수행하며, 무선이동메쉬네트워크의변화가발생한경우, 지역적업데이트의범위를계산한후 지역적업데이트의범위에대해서만링크기반방향성전송스케줄링을수행한다.
Abstract translation: 无线移动网状网络中的调度节点生成表示在多个网格节点之间形成的多个链路中的两个不同链路是否可以同时发送数据的链路兼容性矩阵。 调度节点使用链路兼容性矩阵来执行基于定向链路的传输调度操作。 当无线移动网状网络发生变化时，调度节点计算本地更新范围，并且仅对本地更新范围执行基于定向链路的传输调度操作。
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Patent Agency Ranking66.发明公开
公开(公告)号：KR1020140080617A
公开(公告)日：2014-07-01
申请号：KR1020120144718
申请日：2012-12-12
Applicant: 한국전자통신연구원 , 연세대학교 산학협력단
Abstract: For routing in a wireless mobile mesh network including a plurality of nodes, a node finds a reference point by projecting its position onto an imaginary line connecting a source node and a destination node to each other and finds a destination point based on the reference point and an optimum 1-hop transmission distance - the optimum 1-hop transmission distance being set in view of the number of hops in an entire routing path and a channel state at each of the hops. One of the nodes that are not selected as a routing node on the routing path is selected as the subsequent routing node in view of the destination point and subcarrier use of each of the nodes.
Abstract translation: 为了在包括多个节点的无线移动网状网络中的路由，节点通过将其位置投影到彼此连接源节点和目的地节点的假想线上而找到参考点，并且基于参考点找到目的地点，并且 最佳1跳传输距离 - 根据整个路由路径中的跳数和每跳的信道状态来设置最佳1跳传输距离。 考虑到每个节点的目标点和子载波使用，选择未被选择作为路由路径上的路由节点的节点之一作为后续路由节点。
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公开(公告)号：KR101397112B1
公开(公告)日：2014-05-28
申请号：KR1020070109610
申请日：2007-10-30
Applicant: 한국전자통신연구원
CPC classification number: H04B7/15507 , H04L1/0026 , H04L1/0027 , H04L5/0091 , H04L2001/0097 , H04W84/047
Abstract: 무선통신 시스템에서 피드백 데이터 전송을 위한 피드백 영역을 프레임의 업링크 구간에 구성하는 방법을 개시한다. 이동국과 기지국 사이의 피드백 영역 외에 중계국과 이동국 사이에 피드백 영역을 설정함으로써 중계국에 의한 피드백 데이터의 전송 지연을 방지한다.
무선통신 시스템, 피드백 영역, 피드백 채널-
公开(公告)号：KR1020140060443A
公开(公告)日：2014-05-20
申请号：KR1020120127027
申请日：2012-11-09
Applicant: 한국전자통신연구원
CPC classification number: H04L27/2657 , H04L25/03821 , H04L27/2691 , H04W72/0453 , H04B15/00 , H04L25/0328 , H04W72/082 , H04W72/12
Abstract: In order to reduce interference that may be generated when a plurality of signals having different subcarrier intervals are received, provided are a method of controlling a signal having a larger subcarrier interval to be suitable for a signal having a smaller subcarrier interval and a method of removing CFO interference. According to an embodiment of the present invention, the subcarrier intervals of a plurality of signals to be transmitted by wireless terminals are compared with each other, and signals are designed so that a signal having the largest subcarrier interval may be repeatedly transmitted. Therefore, interference that may be generated among different kinds of signals when the base station simultaneously receives the different kinds of signals to perform Fourier transform may be mitigated. In addition, interference caused by a CFO may be removed by previously compensating the CFO estimated in a time domain to perform Fourier transform.
Abstract translation: 为了减少当接收到具有不同子载波间隔的多个信号时可能产生的干扰，提供了一种控制具有较大子载波间隔的信号以适合于具有较小子载波间隔的信号的方法和一种去除 CFO干扰。 根据本发明的实施例，将由无线终端发送的多个信号的子载波间隔相互比较，并且设计信号，使得可以重复发送具有最大子载波间隔的信号。 因此，可以减轻当基站同时接收不同种类的信号进行傅立叶变换时在不同种类的信号之间产生的干扰。 另外，由CFO导致的干扰可以通过预先补偿在时域中估计的CFO来执行傅立叶变换来消除。
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公开(公告)号：KR1020130051350A
公开(公告)日：2013-05-20
申请号：KR1020110116644
申请日：2011-11-09
Applicant: 한국전자통신연구원
CPC classification number: H04W56/001 , H04L7/0008 , H04W84/18
Abstract: PURPOSE: A mesh node synchronization method in a wireless mesh system is provided to modulate a preamble of a neighbor node and broadcasting information. CONSTITUTION: An automatic gain controller transmits a network setup signal received from a neighbor node to a PHY(PHYsical Layer)(S531b). The PHY synchronizes time or frequency by using a preamble of the network setting signal(S532b). The PHY transmits the location information of a starting point of a super frame of the network setting signal to a DSP(Digital Signal Processor). The DSP synchronizes the clock of a mesh node through the location information. [Reference numerals] (AA) Automatic gain control unit; (BB) Power on; (DD) Network setting signal searching time; (EE) Location information transfer of network setting signal/super frame starting point; (S520,CC) Initial network setting mode request; (S531b) Network setting signal/PPA_en signal transfer; (S532b) Time/frequency synchronization network setting signal decoding; (S533b) Super frame starting point correction; (S540,FF) Normal network setting mode request; (S550b) Network entrance
Abstract translation: 目的：提供无线网状系统中的网格节点同步方法来调制邻居节点的前同步码和广播信息。 构成：自动增益控制器将从邻居节点接收的网络建立信号发送到PHY（PHY层）（S531b）。 PHY通过使用网络设置信号的前同步码来同步时间或频率（S532b）。 PHY将网络设置信号的超帧的起点的位置信息发送到DSP（数字信号处理器）。 DSP通过位置信息同步网状节点的时钟。 （附图标记）（AA）自动增益控制单元; （BB）开机; （DD）网络设置信号搜索时间; （EE）网络设置信号/超帧起点的位置信息传输; （S520，CC）初始网络设置模式请求; （S531b）网络设定信号/ PPA_en信号传送; （S532b）时间/频率同步网络设置信号解码; （S533b）超帧起点校正; （S540，FF）正常网络设置模式请求; （S550b）网络入口
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公开(公告)号：KR1020130048084A
公开(公告)日：2013-05-09
申请号：KR1020110113017
申请日：2011-11-01
Applicant: 한국전자통신연구원
CPC classification number: H04W72/0406 , H04J11/00 , H04W84/18
Abstract: PURPOSE: A resource assignment device of a wireless communication system and a method thereof are provided to prevent the collision between time shaft resources and frequency shaft resources in a wireless communication system based on an OFDMA(Orthogonal Frequency Division Multiple Access). CONSTITUTION: A reception unit(720) receives a control message from a hop node of a communication node. An assignment control unit(730) collects the resource assignment information of two hop nodes and one hop node through the control message. The assignment control unit selects assignable transmission resources and assignable reception resources using the resource assignment information of the nodes. The assignment control unit individually assigns the transmission resources and reception resources to an assignable reception resource and the assignable transmission resource. [Reference numerals] (710) Transmission unit; (720) Reception unit; (730) Assignment control unit
Abstract translation: 目的：提供无线通信系统的资源分配装置及其方法，以防止基于OFDMA（正交频分多址）的无线通信系统中的时间轴资源与频率轴资源之间的碰撞。 构成：接收单元（720）从通信节点的跳跃节点接收控制消息。 分配控制单元（730）通过控制消息收集两跳节点和一跳节点的资源分配信息。 分配控制单元使用节点的资源分配信息来选择可分配的发送资源和可分配的接收资源。 分配控制单元将发送资源和接收资源分别分配给可分配的接收资源和可分配的发送资源。 （附图标记）（710）传输单元; （720）接待单位; （730）分配控制单元
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