公开(公告)号：KR1020160037069A

公开(公告)日：2016-04-05

申请号：KR1020150114943

申请日：2015-08-13

Applicant: 한국전자통신연구원

Inventor： 문성현 ,  신우람 ,  김철순 ,  고영조

IPC: H04L5/00 ,  H04B7/04

Abstract: 기지국은제1 타임슬롯과상기제1 타임슬롯이후의제2 타임슬롯을포함하는제1 서브프레임에설정된제1 CSI-RS 자원풀(pool)에, 상기제1 타임슬롯의 2번째 OFDM(Orthogonal Frequency Division Multiplexing) 심볼, 3번째 OFDM 심볼, 및 4번째 OFDM 심볼중 적어도 2개의 OFDM 심볼에대응하는다수의제1 자원요소(RE: Resource Element)를포함시킨다. 그리고상기기지국은상기제1 CSI-RS 자원풀에포함된 RE 중에서적어도하나를이용해 CSI-RS를전송한다.

Abstract translation: 本发明涉及发送信道状态信息参考信号的方法和装置。 基站包括对应于第一时隙的第二，第三和第四正交频分复用（OFDM）符号中的至少两个的多个第一资源元素（RE）到被设置在第一时隙中的第一CSI-RS资源池 子帧包括第一时隙和第一时隙之后的第二时隙。 基站通过使用包含在第一CSI-RS资源池中的至少一个RE执行CSI-RS传输。

公开(公告)号：KR1020150031385A

公开(公告)日：2015-03-24

申请号：KR1020130110677

申请日：2013-09-13

Applicant: 한국전자통신연구원

Inventor： 신우람 ,  김현재 ,  이용수 ,  이안석 ,  임광재 ,  권동승

IPC: H04W16/28 ,  H04W24/10

CPC classification number: H04W16/28 ,  H04B7/022 ,  H04B7/0617 ,  H04B7/0626

Abstract: 제어 채널의 커버리지를 확장할 수 있는 빔형성 방법 및 장치를 통해, 인접 통신 기기를 수신 가능한 빔의 개수에 따라서 분류하고 그에 따라 빔의 전송 빈도 또는 전송 주기를 조절하여 제어 채널을 빔형성 방식으로 전송함으로써, 오버헤드를 줄이고, 전송률을 증가시키며 커버리지 홀 현상을 방지할 수 있다.

Abstract translation: 本发明涉及能够扩展控制信道的覆盖范围的波束形成方法和波束成形装置。 根据本发明，波束形成装置执行以下步骤：基于能够被每个通信设备接收的波束的数量来对相邻通信设备进行分类; 根据分类调整光束的传输频率或传输周期; 以及通过波束形成模式发送控制信道。 结果，本发明减少开销，提高传输速率，并且可以防止覆盖漏洞。

公开(公告)号：KR1020140119857A

公开(公告)日：2014-10-13

申请号：KR1020130033048

申请日：2013-03-27

Applicant: 한국전자통신연구원

Inventor： 이안석 ,  신우람 ,  김지형 ,  김현재 ,  임광재 ,  권동승

IPC: H04W56/00

CPC classification number: H04J3/0652 ,  H04W56/002

Abstract: The present invention relates to a synchronization group management device and, more specifically, to a method to manage a plurality of groups in a synchronization group management device of a node included in a single group among a plurality of groups in a wireless communication network. According to an embodiment of the present invention, the synchronization group management method includes the steps of: searching for the group the node is included in and groups adjacent to the previous group; determining the role of the group including the node which can be a master group or a slave group; and merging the group with the adjacent groups when the group including the node is a slave group.

Abstract translation: 本发明涉及一种同步组管理装置，更具体地说，涉及在无线通信网络中的多个组中的单个组中包括的节点的同步组管理装置中管理多个组的方法。 根据本发明的一个实施例，同步组管理方法包括以下步骤：搜索包括在该组中的组，并且与之前的组相邻组; 确定包括可以是主组或从组的节点的组的角色; 并且当包括节点的组是从组时，将组合与相邻组合并。

公开(公告)号：KR1020140009929A

公开(公告)日：2014-01-23

申请号：KR1020130081175

申请日：2013-07-10

Applicant: 한국전자통신연구원

Inventor： 신우람 ,  김은경 ,  이안석 ,  차재선 ,  임광재 ,  권동승

IPC: H04B7/26

CPC classification number: H04W72/042 ,  H04W4/70 ,  H04W8/26 ,  H04W12/02 ,  H04W76/23 ,  H04W76/30

Abstract: According to an embodiment of the present invention, provided is a communication method for a third device that controls a first link established directly between a first device and a second device. The third device allocates a first link identifier for identifying the first link. The third device transmits first information including the first link identifier to the first device and the second device. The third device receives, from the first device and the second device, second information including allocation acceptance information indicating the acceptance or rejection of allocation of the first link identifier. [Reference numerals] (100) Control unit; (200) Reception unit; (300) Transmission unit

Abstract translation: 根据本发明的实施例，提供了一种用于控制直接在第一设备和第二设备之间建立的第一链路的第三设备的通信方法。 第三设备分配用于识别第一链路的第一链路标识符。 第三设备向第一设备和第二设备发送包括第一链路标识符的第一信息。 第三设备从第一设备和第二设备接收包括指示接受或拒绝第一链路标识符的分配的分配接受信息的第二信息。 （附图标记）（100）控制单元; （200）接待单位; （300）传输单元

公开(公告)号：KR101262336B1

公开(公告)日：2013-05-08

申请号：KR1020100048065

申请日：2010-05-24

Applicant: 한국전자통신연구원

Inventor： 김지형 ,  신우람

IPC: H04B7/26 ,  H04B7/04

Abstract: 서빙기지국에서단말의프리코딩을제어하기위해서, 코드북에서서빙기지국의전송전력을최대로하는제1 코드워드를결정하고, 이웃기지국으로부터이웃기지국으로의간섭을최소화하는제2 코드워드의인덱스를전달받는다. 서빙기지국은단말로제1 코드워드의인덱스, 제2 코드워드의인덱스, 그리고제1 코드워드의인덱스에대응하는프리코딩행렬과상기제2 코드워드의인덱스에대응하는프리코딩행렬의결합비율을전송한다.

公开(公告)号：KR1020120106115A

公开(公告)日：2012-09-26

申请号：KR1020110023990

申请日：2011-03-17

Applicant: 한국전자통신연구원

Inventor： 신우람 ,  김현재 ,  임광재 ,  권동승 ,  김석찬 ,  박동찬 ,  윤상석

IPC: H04W52/24 ,  H04J11/00 ,  H04W84/18

CPC classification number: H04W84/18 ,  H04J11/00 ,  H04W52/24

Abstract: PURPOSE: An IoT(Interference over Thermal) control method for OFDMA(Orthogonal Frequency Division Multiple Access) based wireless mesh network is provided to efficiently control the amount of interference and to perform power control. CONSTITUTION: A request node(R60) measures a preamble signal(S63). The request node calculates the reception power of the preamble signal from a target node based on the measured preamble signal(S64). The request node calculates SIR(Signal-to-Interference Ratio) of the target node through the reception power of the calculated preamble signal(S66). The request node determines transmission power of the target node based on the calculated SIR(S67). [Reference numerals] (S61) Request; (S62) Grant; (S63) Calculating a preamble signal which is received from various grant nodes; (S64) Calculating the reception power of the preamble signal from the grant node positioned at 1-hop; (S65) Calculating sum of a preamble reception power which is received from the grant node at 2-hop; (S66) Calculating SIRn from a control channel of each node at1-hop; (S67) Calculating transmission power per sub carrier when transmitting a data channel to the node n; (S68) Confirm

Abstract translation: 目的：提供一种基于OFDMA（正交频分多址）的无线网状网络的IoT（干扰热）控制方法，以有效地控制干扰量并执行功率控制。 构成：请求节点（R60）测量前置信号（S63）。 请求节点基于测量的前导信号来计算来自目标节点的前导码信号的接收功率（S64）。 请求节点通过所计算的前导信号的接收功率来计算目标节点的SIR（信号与干扰比）（S66）。 请求节点基于计算出的SIR来确定目标节点的传输功率（S67）。 （附图标记）（S61）请求; （S62）拨款; （S63）计算从各种授权节点接收的前导信号; （S64）从位于1跳的授权节点计算前导码信号的接收功率; （S65）计算从授权节点在2跳接收的前导码接收功率的和; （S66）从1跳的每个节点的控制信道计算SIRn; （S67）当向节点n发送数据信道时，计算每个子载波的发射功率; （S68）确认

公开(公告)号：KR1020120071953A

公开(公告)日：2012-07-03

申请号：KR1020100133699

申请日：2010-12-23

Applicant: 한국전자통신연구원

Inventor： 이안석 ,  신우람 ,  임광재 ,  권동승 ,  김현재

IPC: H04W40/24 ,  H04W84/18 ,  H04L12/28

CPC classification number: H04L12/437 ,  H04W40/248

Abstract: PURPOSE: A routing information transmission method in a wireless network and routing apparatus thereof are provided to smoothly transmit routing information in environment where a bandwidth is restricted by creating a routing update message according to the priority of each link information. CONSTITUTION: A routing unit(310) searches a neighbor node. The routing unit exchanges the routing information with the searched neighbor node. A neighbor node information management unit(320) manages neighbor node information. A link information management unit(330) manages the topology information of a network in a link unit. A routing table management unit(340) updates routing tables when the link information is updated.

Abstract translation: 目的：提供一种无线网络中的路由信息​​传输方法及其路由设备，以便通过根据每个链路信息的优先级创建路由更新消息来平滑地传输带宽受限的环境中的路由信息​​。 构成：路由单元（310）搜索邻居节点。 路由单元与搜索到的邻居节点交换路由信息。 邻居节点信息管理单元（320）管理邻居节点信息。 链接信息管理单元（330）管理链路单元中的网络的拓扑信息。 当更新链路信息时，路由表管理单元（340）更新路由表。

公开(公告)号：KR1020120012749A

公开(公告)日：2012-02-10

申请号：KR1020100131463

申请日：2010-12-21

Applicant: 한국전자통신연구원

Inventor： 김현재 ,  신우람 ,  이안석 ,  임광재 ,  김근영 ,  김지형 ,  권동승

IPC: H04W72/12 ,  H04W28/24 ,  H04J11/00

CPC classification number: H04L5/0091 ,  H04W72/0446 ,  H04W72/1263 ,  H04W84/18

Abstract: PURPOSE: A distributed scheduling method in a wireless mesh network based on OFDMA and a device thereof are provided to use a frame with a structure which can access resources by a sub channel. CONSTITUTION: A transceiving unit(810) transmits or receives a distributed scheduling message through a sub channel of a distributed scheduling sub frame of a data frame. A controller(820) generates a distributed scheduling message to be transmitted. The controller processes the received distributed scheduling message. The distributed scheduling message includes a transmission request message, a transmission approving message, and a transmission confirming message. The transmission request message, the transmission approving message, and the transmission confirming message are transmitted through different sub channels.

Abstract translation: 目的：提供一种基于OFDMA及其设备的无线网状网络中的分布式调度方法，以使用具有可通过子信道接入资源的结构的帧。 构成：收发单元（810）通过数据帧的分布式调度子帧的子信道发送或接收分布式调度消息。 控制器（820）生成要发送的分布式调度消息。 控制器处理接收到的分布式调度消息。 分布式调度消息包括传输请求消息，传输批准消息和传输确认消息。 发送请求消息，发送批准消息和发送确认消息通过不同的子信道发送。

公开(公告)号：KR101036009B1

公开(公告)日：2011-05-23

申请号：KR1020090075136

申请日：2009-08-14

Applicant: 한국전자통신연구원 ,  경희대학교 산학협력단

Inventor： 김지형 ,  신우람 ,  권동승 ,  예충일 ,  홍인기

IPC: H04B7/04 ,  H01Q3/26 ,  H04B7/26

CPC classification number: H04B7/0617 ,  H04B7/0417 ,  H04B7/0639 ,  Y02D70/1262 ,  Y02D70/444

Abstract: 단말이 빔포밍 벡터를 생성하는 방법은, 서빙 기지국으로부터 제1 사전코딩 행렬 및 제2 사전코딩 행렬에 대한 정보를 수신하는 단계; 및 상기 제1 사전코딩 행렬 및 상기 제2 사전코딩 행렬을 선형 결합하여 빔포밍 벡터를 생성하는 단계를 포함한다.
빔포밍, 사전코딩, PMI

Abstract translation: 由终端生成波束形成向量的方法包括从服务基站接收关于第一预编码矩阵和第二预编码矩阵的信息; 以及通过线性组合第一预编码矩阵和第二预编码矩阵来生成波束形成向量。

公开(公告)号：KR1020110030280A

公开(公告)日：2011-03-23

申请号：KR1020100048065

申请日：2010-05-24

Applicant: 한국전자통신연구원

Inventor： 김지형 ,  신우람

IPC: H04B7/26 ,  H04B7/04

CPC classification number: H04B7/0456 ,  H04B7/0617 ,  H04B7/0639

Abstract: PURPOSE: A precoding apparatus, a method thereof, a precoding controlling apparatus, and a method thereof are provided to determine the coupling ratio of two precoding matrixes in a serving station. CONSTITUTION: A neighboring base station cooperation unit(220) receives an index of a first codeword from a base station. A precoding control unit(230) determines the coupling ratio of a precoding matrixes corresponding to a second codeword index. A transceiver(210) transmits the first codeword index, the second codeword index, and a coupling ratio to a terminal.

Abstract translation: 目的：提供预编码装置，其方法，预编码控制装置及其方法，以确定服务台中两个预编码矩阵的耦合比。 构成：相邻基站协作单元（220）从基站接收第一码字的索引。 预编码控制单元（230）确定与第二码字索引对应的预编码矩阵的耦合比。 收发器（210）向终端发送第一码字索引，第二码字索引和耦合比。