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    • 181. 发明公开
    • 가상 액세스 포인트 서비스를 기반으로 하는 무선랜 액세스 포인트 시스템
    • 基于虚拟接入点服务的无线局域网系统
    • KR1020130019840A
    • 2013-02-27
    • KR1020110082075
    • 2011-08-18
    • 한국전자통신연구원
    • 이명훈이윤주임광재권동승김성훈
    • H04W88/08H04W84/12H04B7/26H04L5/00
    • H04W84/12H04W16/02H04W88/10H04L5/0044H04L5/0055
    • PURPOSE: A virtual AP(Access Point) service based WLAN(Wireless Local Area Network) AP system is provided to support multiple channel access based on a VAP(Virtual Access Point) service protocol. CONSTITUTION: A first VAP(510) is a logic entity which communicates with a first station. A second VAP(520) communicates with a second station. The first VAP exchanges a frame for the first station by using a first channel. The second VAP exchanges the frame for the second station by using a second channel. The frequency band of the first channel is not approached to the frequency band of the second channel. [Reference numerals] (51) Address multiplexer; (512) Network interface A; (514,524,534) Interface Q; (515,525,535) Link layer; (52) Port multiplexer; (522) Network interface B; (53) Application unit; (532) Network interface C; (54) Routing agent
    • 目的:提供基于虚拟AP(接入点)服务的WLAN(无线局域网)AP系统,以支持基于VAP(虚拟接入点)服务协议的多信道接入。 构成:第一VAP(510)是与第一站进行通信的逻辑实体。 第二VAP(520)与第二站通信。 第一VAP通过使用第一通道来交换第一站的帧。 第二VAP通过使用第二通道来交换第二站的帧。 第一信道的频带不接近第二信道的频带。 (附图标记)(51)地址多路复用器; (512)网络接口A; (514,524,534)接口Q; (515,525,535)链路层; (52)端口多路复用器; (522)网络接口B; (53)申请单位; (532)网络接口C; (54)路由代理
    • 183. 发明公开
    • 무선 메쉬 시스템을 위한 피드백 방법 및 장치
    • 无线网络系统中反馈的装置和方法
    • KR1020120125691A
    • 2012-11-19
    • KR1020110043283
    • 2011-05-09
    • 한국전자통신연구원
    • 신우람김현재임광재권동승
    • H04L1/18H04L27/26H04W84/18
    • H04L1/1812H04L27/26H04W84/18
    • PURPOSE: An apparatus and method for feedback in a wireless mesh system are provided to reduce overheads by providing an HARQ(hybrid automatic repeat request) feedback channel for the wireless mesh system. CONSTITUTION: Data is received in a first sub frame. An HFBCH(HARQ feedback channel) is selected to transmit ACK/NACK(acknowledgement/not-acknowledgement) of the data in a second sub frame corresponding to the first sub frame. The ACK/NACK of the data is transmitted in the selected HFBCH. The HFBCH which can be transmitted from the second sub frame has a mapping relation with an LRU(logical resource unit) of the first sub frame. The first sub frame and the second sub frame are included in a frame which can transmit scheduling information and the data.
    • 目的:提供一种用于无线网状系统中的反馈的装置和方法,以通过为无线网状系统提供HARQ(混合自动重复请求)反馈信道来减少开销。 规定:在第一个子帧中接收数据。 选择HFBCH(HARQ反馈信道)以在对应于第一子帧的第二子帧中发送数据的ACK / NACK(确认/不确认)。 在所选择的HFBCH中发送数据的ACK / NACK。 可以从第二子帧发送的HFBCH与第一子帧的LRU(逻辑资源单元)具有映射关系。 第一子帧和第二子帧被包括在可以发送调度信息和数据的帧中。
    • 187. 发明公开
    • 공중 통신국과 지상 단말 간의 무선 통신 방법
    • AIRBORNE通信节点与接地终端之间无线通信的方法
    • KR1020110066786A
    • 2011-06-17
    • KR1020090123576
    • 2009-12-11
    • 한국과학기술원한국전자통신연구원
    • 성단근김성환정병훈김성진권동승
    • H04B7/26H04W16/18
    • H04W64/00H04W16/18H04W28/0247H04W64/003
    • PURPOSE: A method for performing wireless communication between an airborne communication nodes and ground terminals are provided to enable a plurality of moveable communication station to relay communications for a plurality of terminals. CONSTITUTION: The location of a plurality of airborne communication nodes and ground terminals are obtained(S900). The location of the airborne communication terminal is determined in order to cover whole or some of ground terminals based on the location information(S930). If an airborne communication node group covers a ground terminal group which covers two or more ground terminals, a communication between the airborne communication node and the ground terminal is performed by a virtual MIMO(Multiple Input Multiple Output)(S960).
    • 目的:提供一种用于在机载通信节点和接地终端之间执行无线通信的方法,以使得多个可移动通信站能够中继多个终端的通信。 构成:获得多个机载通信节点和接地终端的位置(S900)。 确定机载通信终端的位置,以便基于位置信息覆盖整个或一些接地终端(S930)。 如果机载通信节点组覆盖覆盖两个或更多个接地终端的接地终端组,则通过虚拟MIMO(多输入多输出)来执行机载通信节点与接地终端之间的通信(S960)。