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    • 11. 发明公开
    • 직교 주파수 분할 다중 액세스 기반의 점대점 통신 방법
    • 使用OFDMA的点对点通信方法
    • KR1020100028696A
    • 2010-03-15
    • KR1020080087543
    • 2008-09-05
    • 한국과학기술원
    • 성영철유희정김학수오영석이용훈
    • H04L27/26H04B7/26
    • H04L12/2859H04B1/713H04L5/0007H04W64/00
    • PURPOSE: A point-to-point communication method based on an OFDMA is provided to minimize power consumption of a terminal by performing the point-to-point communication between a transmission terminal and a reception terminal. CONSTITUTION: A base station determines the position of a reception terminal by receiving communication request information from a transmission terminal(S10). A distance between the transmission terminal and the reception terminal are compared with the preset range. The point-to-point OFDMA information including a subcarrier hoping sequence for the point-to-point communication is transmitted to the transmission terminal and the reception terminal(S20). The point-to-point communication is performed according to the received OFDMA information(S30).
    • 目的:提供一种基于OFDMA的点到点通信方法,通过执行发送终端和接收终端之间的点对点通信来最小化终端的功耗。 构成:基站通过从发送终端接收通信请求信息来确定接收终端的位置(S10)。 将发送终端与接收终端之间的距离与预设范围进行比较。 包括用于点对点通信的子载波希望序列的点对点OFDMA信息被发送到发送终端和接收终端(S20)。 根据接收到的OFDMA信息进行点对点通信(S30)。
    • 14. 发明公开
    • 엑스디에스엘 모뎀을 사용하는 비동기 전송모드 상의포인트-대-포인트 프로토콜에 있어서의 피피피오에이스푸핑 방법 및 장치
    • 使用XDSL的PPPOA中的PPPOA SPOOFING方法及其设备
    • KR1020030020817A
    • 2003-03-10
    • KR1020020017288
    • 2002-03-29
    • 삼성전자주식회사
    • 노응석
    • H04L12/28
    • H04L61/2015H04L12/2856H04L12/2859H04L12/5601H04L69/16H04L69/168H04L2012/5615H04L2012/5616
    • PURPOSE: A PPPoA(Point-to-Point Protocol over ATM(Asynchronous Transfer Mode)) spoofing method in a PPPoA using an xDSL(x Digital Subscriber Line) and an apparatus therefor are provided to use a DNS(Domain Name Service) server and a global IP(Internet Protocol) address provided by a NAS(Network Access Server) in a client PC without an additional local IP address. CONSTITUTION: An ADSL(Asynchronous DSL) modem(50) completes a single network connection between a client PC(10) and a NAS(40). When the client PC(10) is booted, one PPP connection is formed in the NAS(40). IP configuration information including a global IP address transmitted from the NAS(40) is received in a DHCP(Dynamic Host Configuration Protocol) server through an IP control protocol of a PPP layer. A bridge is formed between the client PC(10) and the NAS(40) so that an IP packet is transmitted between the client PC(10) and the NAS(40). IP configuration information inputted from the NAS(40) is transmitted to the client PC(10).
    • 目的:提供使用xDSL(x数字用户线)的PPPoA中的PPPoA(ATM(异步传输模式)上的点对点协议)欺骗方法及其设备,以使用DNS(域名服务)服务器和 在客户端PC中由NAS(网络访问服务器)提供的全球IP(因特网协议)地址,无需额外的本地IP地址。 构成:ADSL(异步DSL)调制解调器(50)在客户PC(10)和NAS(40)之间完成单个网络连接。 当客户PC(10)被引导时,在NAS(40)中形成一个PPP连接。 包括从NAS(40)发送的全局IP地址的IP配置信息通过PPP层的IP控制协议在DHCP(动态主机配置协议)服务器中被接收。 在客户PC(10)和NAS(40)之间形成桥,使得在客户PC(10)和NAS(40)之间传送IP包。 从NAS(40)输入的IP配置信息被发送到客户PC(10)。
    • 16. 发明公开
    • 내장형 비대칭 디지털 가입자 라인 모뎀
    • 嵌入式不对称数字订阅线路调制解调器
    • KR1020000008524A
    • 2000-02-07
    • KR1019980028376
    • 1998-07-14
    • 현대네트웍스 주식회사
    • 박재형
    • H04L12/28
    • H04L12/2898H04L12/2859H04L12/5601H04L2012/5628H04L2012/5652H04L2012/5658
    • PURPOSE: The embedded typed Asymmetric Digital Subscribe Line(ADSL) modem is provided to improve the transmission processing speed by removing the double structured devices. CONSTITUTION: A built-in typed ADSL modem comprises: a Discrete Multi-Tone(DMT) transceive unit(600) to transmit the ADSL signal transmitted from the ATM cell conversion unit(500) to the Public Office Telephone System Splitter(3); an ATM cell conversion unit(500) to convert the ADSL signal transmitted from the DMT transceive unit; and an interface(400) to interface between the ATM cell conversion unit and the AAL 5 SAR(300) by the Universal Test and Operations Physical for ATM(UTOPIA).
    • 目的:提供嵌入式非对称数字订阅线(ADSL)调制解调器,通过移除双重结构化设备来提高传输处理速度。 内置型ADSL调制解调器包括:将从ATM信元转换单元(500)发送的ADSL信号发送到公共电话系统分配器(3)的离散多音(DMT)收发单元(600); ATM信元转换单元(500),用于转换从DMT收发单元发送的ADSL信号; 以及通过ATM通用测试和操作物理(UTOPIA)在ATM信元转换单元和AAL 5 SAR(300)之间进行接口的接口(400)。
    • 17. 发明授权
    • 무인비행체를 이용한 터널 내 통신 중계 시스템 및 그 방법
    • 使用无人机的隧道内通信中继系统及其方法
    • KR101745916B1
    • 2017-06-13
    • KR1020160046986
    • 2016-04-18
    • 재단법인대구경북과학기술원
    • 김영덕정우영권순박진원손국진
    • H04L12/703H04L12/801H04L29/08H04L12/28H04L1/00
    • H04L45/28H04L1/0002H04L12/2859H04L47/17H04L67/12H04L67/2809
    • 본발명은무인비행체를이용한터널내 통신중계시스템및 그방법에대한것이다. 본발명에따른무인비행체를이용한터널내 통신중계시스템은화재감지를위한센서가구비되며, 상기센서로부터센싱된데이터와주기적으로송출하는메시지를송수신하고, 터널내부에설정간격으로일렬배치되는복수의센서노드; 터널외부에위치하며가장먼 위치의센서노드에서가장인접한위치의센서노드방향으로순차적으로전달되는상기데이터및 메시지를수집하는싱크노드; 및상기싱크노드로부터수집된데이터및 메시지를수신하고, 상기메시지를이용하여상기복수의센서노드들사이의연결상태를판단하고이상이감지되면, 해당센서노드의위치로무인비행체를이동시키기위한제어신호를생성하는관제서버를포함한다. 이와같이본 발명에따르면, 터널내 각종재난발생으로인하여통신경로에문제가생긴경우, 터널내 빠른접근이가능한무인비행체를이용하여통신중계가재개되도록함으로써원활한통신복구가가능하며안정적이고신속한데이터송수신을보장할있는효과가있다.
    • 通信中继系统及其方法技术领域本发明涉及使用无人机的隧道内的通信中继系统及其方法。 使用根据本发明的无人操纵的飞行器的隧道,通信中继系统包括多个配有用于火灾检测的传感器,其由传感器发送和接收的消息与数据被发送和周期性地感测,并且设置在一组距离的线在隧道内 传感器节点; 位于隧道外并收集数据和消息的宿节点被顺序地传送到传感器节点,从最远的位置的传感器节点最近的位置的方向上; 和接收从信宿节点中收集的数据和消息的情况下,以及使用所述消息确定所检测的多个传感器节点和异常之间的连接,对于无人空中交通工具移动到传感器节点的位置的控制信号, 和一个生成控制服务器的控制服务器。 以这种方式,根据本发明,当由于各种灾害隧道是与通信路径中的问题,使用快速接入隧道内的可用无人空中交通工具实现无缝通信恢复通过使通信中继简历,和稳定的和快速的数据的接收和发送 有保证的效果。
    • 20. 发明授权
    • 점대 다점 방식 네트워크 기반의 전술 데이터 링크 시스템 및 전술 데이터 전송 방법
    • 基于点到多点网络的战术数据链路系统及其传输战术数据的方法
    • KR101231648B1
    • 2013-02-08
    • KR1020110082163
    • 2011-08-18
    • 국방과학연구소
    • 윤용구박수원이정식
    • H04L29/06H04L12/56
    • H04L12/2859H04L1/004
    • PURPOSE: A tactical data link system based on a point to multi-point network and a tactical data transmission method thereof are provided to form an improved communications system in comparison with a method using a physical layer address, thereby preventing the decrease of transfer efficiency due to a 15-bit overhead. CONSTITUTION: Tactical data link(Link-16) units(501,502,503) each have an allocated track number(TN). The tactical data link unit transmits a data packet using an IP server/client method. A gateway(504) supports connection between networks using a point-to-multipoint method through each tactical data link unit having the allocated track number and a Link-16 network. A router is connected to the gateway. The router routes the data packet from a source IP address to a destination IP address. An IP server(505) receives the data packet using a point-to-point method.
    • 目的:提供一种基于点对多点网络的战术数据链路系统及其战术数据传输方法,与使用物理层地址的方法相比,形成改进的通信系统,从而防止传输效率降低 到15位开销。 构成:战术数据链路(Link-16)单元(501,502,503)各有一个分配的轨道号(TN)。 战术数据链路单元使用IP服务器/客户端方法发送数据分组。 网关(504)通过具有分配的轨道号的每个战术数据链路单元和Link-16网络,使用点对多点方法来支持网络之间的连接。 路由器连接到网关。 路由器将数据包从源IP地址路由到目的IP地址。 IP服务器(505)使用点到点方法接收数据分组。