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公开(公告)号：KR1020090066121A
公开(公告)日：2009-06-23
申请号：KR1020070133744
申请日：2007-12-18
Applicant: 한국전자통신연구원
IPC: H04B7/26
CPC classification number: H04W72/02 , H04W72/0406 , Y02D70/142 , Y02D70/166 , H04B7/2612 , H04W74/002 , Y02D70/00
Abstract: An apparatus and a method for controlling a multiple channel access by using preamble are provided to reduce power consumption by retransmission and improve transmission quality by increasing the transmission probability. A channel searcher(110) searches a transmission sensor node and an available channel. A control channel pre-occupier(120) preoccupies a control channel and broadcasts the preamble periodically. An available channel exchanger(130) selects the channel in a receiving sensor node based on preamble and transmits the channel selection information to the transmission sensor node.
Abstract translation: 提供一种用于通过使用前导码来控制多信道接入的装置和方法，以通过重传来减少功耗并通过增加传输概率来提高传输质量。 信道搜索器（110）搜索传输传感器节点和可用信道。 控制信道预占用者（120）重点控制信道并周期性地广播前导码。 可用信道交换机（130）基于前导码选择接收传感器节点中的信道，并将信道选择信息发送到传输传感器节点。
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公开(公告)号：KR1020060071833A
公开(公告)日：2006-06-27
申请号：KR1020050040378
申请日：2005-05-14
Abstract: 본 발명은 MANET 환경에서 QoS(Quality of Service)을 보장하기 위해 최선 트래픽(Best Efforts traffic)의 전송을 제어하는 장치에 관한 것이다.
본 명세서에서 개시하는 이동 애드혹 네트워크 환경에서의 트래픽 전송 제어 장치는 이동 애드혹 네트워크의 상태 정보를 산출/수집하는 네트워크 상태 정보 산출/수집부; 상기 산출/수집된 상태 정보를 이용하여, 상기 네트워크 환경에서 QoS 보장 트래픽의 전송을 위한 경로를 확립하고 자원을 예약하는 QoS 보장 라우팅 부; 및 상기 QoS 보장 트래픽의 QoS을 유지시키는 QoS 유지부를 포함하여 본 장치발명의 목적 및 기술적 과제를 달성한다.-
公开(公告)号：KR1019960027692A
公开(公告)日：1996-07-22
申请号：KR1019940032937
申请日：1994-12-06
Applicant: 한국전자통신연구원
IPC: H04L12/26
Abstract: 본 발명은 프로토콜의 적합성 시험을 수행하는데 있어서 시험자가 원하는 프로토콜의 부분 즉, 시험 목적을 형식적으로 표현하는 방법에 관한 것이다.
본 발명은 프로토콜의 행위를 표현하기 위한 유한 상태 기계의 노드인 지드(GID: Global Instantaneous Description)를 구성하고 있는 정보 중에서 시험 목적으로 이용될 수 있는 정보로 구성된 지드 테이블을 작성하는 제1단계; 상기 지드 테이블의 열을 이용해서 시험 목적을 표현하는 제2단계 및 상기 지드 테이블열을 유한 상태 기계에 적용시켜서 시험 목적이 반영된 유한 상태 기계를 추출하는 제3단계(S3)로 수행되는 것을 특징으로 하여, 시험 케이스의 생성을 자동화할 수 있기 때문에 효율적인 시험 케이스를 만들어 낼 수 있는 효과가 있다.-
公开(公告)号：KR100932556B1
公开(公告)日：2009-12-17
申请号：KR1020070120894
申请日：2007-11-26
Applicant: 한국전자통신연구원 , 한양대학교 산학협력단
Abstract: 본 발명은 차량 간 통신을 위한 라우팅 경로 설정 방법 및 이를 수행하는 단말장치에 관한 것이다.
본 발명에 따르면, 소스 노드와 목적지 노드 간의 라우팅 경로를 설정하기 위한 하나 이상의 라우팅 경로 설정 요청 각각으로부터 추출한 인접 노드의 차량 운행 정보 및 임의의 노드의 차량 운행 정보를 이용하여 라우팅 경로 별 경로 지속 시간을 예측한다. 그리고 예측한 라우팅 경로 별 경로 지속 시간 중에서 선택된 상대적으로 큰 값을 가지는 경로 지속 시간을 가지는 라우팅 경로를 통하여 소스 노드와 목적지 노드 간의 데이터 전송이 이루어진다.
이와 같이, 차량의 이동성을 예측하여 통신 범위 내에서 비슷한 방향과 속도를 갖는 노드들로 구성된 최적의 라우팅 경로를 설정하므로 불필요한 라우팅 재탐색 절차를 축소시킬 뿐만 아니라 소스 노드와 목적지 노드와 같은 이동 패턴을 가지는 노드들로 구성된 라우팅 경로를 설정할 수 있다.
AODV(Ad-hoc On-demand Distance Vector), 경로 설정 요청(Route Request, RREQ), 경로 설정 응답(Route Reply, RREP)Abstract translation: 本发明涉及一种终端设备，用于设置的路由路径的方法用于车辆间通信，并执行此操作。
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公开(公告)号：KR100912825B1
公开(公告)日：2009-08-18
申请号：KR1020070133742
申请日：2007-12-18
Applicant: 한국전자통신연구원
CPC classification number: H04L67/125 , H04L67/12 , H04L67/18 , H04W4/02 , H04W52/0235 , H04W52/028 , H04W76/27 , Y02D70/166
Abstract: Provided are a transmitting apparatus, a transmitting method, a receiving apparatus, a receiving method and a channel status information updating method of a sensor node based on multiple channels. The transmitting apparatus and method transmit a wake-up signal for switching neighbor nodes in a power-saving mode in a transmission range of the sensor node to a wake-up mode in which the neighbor nodes wait to receive a message from the sensor node through the control channel, transmit a preamble message including a list of unused available channels from among the data channels to a receiving node to which data is transmitted from among the neighbor nodes through the control channel, receive an acknowledgement message including information that indicates a channel selected from the available channels from the receiving node through the control channel, transmit a connection confirmation message for switching neighbor nodes other than the receiving node to the power-saving mode through the control channel, and transmit data to the receiving node through the selected channel.
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Patent Agency Ranking
公开(公告)号：KR1020090066120A
公开(公告)日：2009-06-23
申请号：KR1020070133742
申请日：2007-12-18
Applicant: 한국전자통신연구원
CPC classification number: H04L67/125 , H04L67/12 , H04L67/18 , H04W4/02 , H04W52/0235 , H04W52/028 , H04W76/27 , Y02D70/166
Abstract: A transmission device of a sensor node based on multi-channels using a wakeup signal, a transmission method, a transmission device and a channel state information update method are provided to improve the reliability and performance and extend the life time of network. A wakeup signal transmitter(110) transmits wakeup signal. A preamble transmitter(120) transmits a preamble message to a receiving node delivering data among adjacent nodes. A receive acknowledgement message receiver(130) receives the receive acknowledgement message. A connection confirm message transmitter transmits the connection confirm message. A connection confirming message converts adjacent nodes except for the receiving node into the power saving state. A data transmitter transmits data in the receiving node.
Abstract translation: 提供基于使用唤醒信号的多信道的传感器节点的传输设备，传输方法，传输设备和信道状态信息更新方法，以提高可靠性和性能并延长网络的使用寿命。 唤醒信号发送器（110）发送唤醒信号。 前导发射机（120）向接收节点发送前导消息，以在相邻节点之间传送数据。 接收确认消息接收器（130）接收接收确认消息。 连接确认消息发送器发送连接确认消息。 连接确认消息将除了接收节点之外的相邻节点转换成省电状态。 数据发送器在接收节点中发送数据。
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公开(公告)号：KR1020080051035A
公开(公告)日：2008-06-10
申请号：KR1020070102763
申请日：2007-10-11
Applicant: 한국전자통신연구원 , 연세대학교 산학협력단
CPC classification number: H04W40/20 , H04L41/0833 , H04L45/122 , H04W74/0841 , H04W84/18 , Y02D70/00
Abstract: A position-based routing method by using a cell in a wireless sensor network is provided to minimize the energy and to determine a path until a destination node easily by reducing the periodical communication for the position information confirmation. In a next-hop position calculation process, the virtual ONI(Optimal Next-hop Information) among the paths until the destination node is calculated. In a communication area division process(302), the communication area is divided into fixed cell sizes by using the calculated virtual ONI position. In a packet broadcasting process(303), a packet including the virtual ONI position and the cell sizes is broadcasted to the surrounding node in the communication area. In a next-hop node decision process(305), the firstly transmitted surrounding node is determined as the next-hop node after receiving a response message in regard to the broadcasted packet from the surrounding node. In the next-hop position calculation process, the position joined by the virtual segment for connecting the distance until the destination node and a virtual circle corresponding to one's own communication area is calculated and the calculating result is determined as the next hop position.
Abstract translation: 提供了一种通过使用无线传感器网络中的小区的基于位置的路由方法来最小化能量并且通过减少用于位置信息确认的周期性通信来容易地确定目的地节点之间的路径。 在下一跳位置计算处理中，直到计算目的地节点为止的路径中的虚拟ONI（最佳下一跳信息）。 在通信区域划分处理（302）中，通过使用计算出的虚拟ONI位置将通信区域分割成固定小区大小。 在分组广播处理（303）中，将包含虚拟ONI位置和小区大小的分组广播到通信区域中的周边节点。 在下一跳节点决策处理（305）中，首先发送的周围节点在接收到来自周围节点的广播分组的响应消息后被确定为下一跳节点。 在下一跳位置计算处理中，计算通过用于连接目的地节点的距离的虚拟段和与自己的通信区域对应的虚拟圆所连接的位置，并将计算结果确定为下一跳位置。
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公开(公告)号：KR100695333B1
公开(公告)日：2007-03-16
申请号：KR1020060025624
申请日：2006-03-21
Applicant: 한국전자통신연구원 , 연세대학교 산학협력단
Abstract: A topology management method using a dynamic preliminary cluster head in a wireless network is provided to be capable of minimizing frequent re-clustering processes due to various topology changes, through a dynamic preliminary cluster head technique, thus an overhead is minimized while overall duration and performance of the network can be maximized. Each node confirms neighboring nodes located within a single home range through received hello messages(201). Each node calculates self weight in consideration of the remaining amount of a battery and node density(connectivity)(202). Each node broadcasts hello messages which include the weight(203), and selects a node having the highest weight as a cluster head(204). The selected cluster head broadcasts a hello message which includes a cluster ID, configures weight maps by using a prediction technique based on the hello messages of the other general nodes, and selects a node having the highest weight map as a preliminary cluster head(205). The cluster head broadcasts a hello message which includes a preliminary cluster head ID(206), and compares the weight map with a load balancing threshold value(207). If the weight map is larger, a cluster member calculates a hop count from the cluster head through the received hello message, and selects a cluster having a small hop count as a self cluster(209).
Abstract translation: 提供了一种使用无线网络中的动态初始群集头的拓扑管理方法，通过动态初步群集头技术，能够最大限度地减少由于各种拓扑变化引起的频繁重新聚类过程，从而将开销最小化，同时保持总体持续时间和性能 的网络可以最大化。 每个节点通过接收到的hello消息（201）确认位于单个归属范围内的相邻节点。 每个节点考虑到电池的剩余量和节点密度（连通性）（202）来计算自重。 每个节点广播包括权重（203）的hello消息，并且选择具有最高权重的节点作为簇头（204）。 所选择的集群头广播包括集群ID的一个hello消息，通过使用基于其他通用节点的hello消息的预测技术来配置权重映射，并且选择具有最高权重映射的节点作为初始簇头（205） 。 集群头广播包含初步的集群头ID（206）的一个hello消息，并将权重映射与负载均衡阈值（207）进行比较。 如果权重映射较大，则集群成员通过接收到的hello消息从簇头计算跳数，并选择具有小跳数的集群作为自身集群（209）。
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公开(公告)号：KR100438894B1
公开(公告)日：2004-07-02
申请号：KR1020010086531
申请日：2001-12-28
IPC: H04L12/50
Abstract: PURPOSE: A method for discriminating a waste frame in an AAL2 switching apparatus is provided to intentionally discriminate a frame to be preferentially wasted by selecting the frame less affecting a service. CONSTITUTION: An AAL2(ATM Adaption Layer2) switching apparatus receives a request for packet transmission(10). The AAL2 switching apparatus judges whether a packet to be transmitted is voice information having continuity(20). If the packet is neither the voice information nor have discontinuity, a frame drop coefficient is initialized as '0'(100). If the packet is the voice information having continuity, it is judged whether the voice information has changes between sound and non-sound(30). If the packet is the voice information having continuity and without the changes between sound and non-sound, it is judged whether a continuous coefficient is a threshold n(40). If not, the AAL2 apparatus increases the continuous coefficient by 1(50). If so, the AAL2 apparatus initializes the continuous coefficient as '0' and the frame drop coefficient is increased by 1(60). The AAL2 apparatus judges whether the frame drop coefficient reaches m(70). If so, the AAL2 apparatus maintains the current frame drop coefficient(90). If not, the frame drop coefficient is increased by 1(80).
Abstract translation: 目的：提供一种用于区分AAL2交换装置中的废物帧的方法，以通过选择对业务影响较小的帧来有意识别要被优先浪费的帧。 组成：AAL2（ATM适配层2）交换设备接收分组传输请求（10）。 AAL2交换装置判断要发送的分组是否是具有连续性的语音信息（20）。 如果分组既不是语音信息也不具有不连续性，则帧丢弃系数被初始化为'0'（100）。 如果分组是具有连续性的语音信息，则判断语音信息是否在声音和非声音之间变化（30）。 如果分组是语音信息具有连续性而没有声音和非声音之间的变化，则判断连续系数是否是阈值n（40）。 如果不是，则AAL2设备将连续系数增加1（50）。 如果是这样，则AAL2设备将连续系数初始化为“0”并且帧丢弃系数增加1（60）。 AAL2设备判断帧丢失系数是否达到m（70）。 如果是这样，则AAL2设备保持当前帧下降系数（90）。 如果不是，则帧丢失系数增加1（80）。
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公开(公告)号：KR1020030056330A
公开(公告)日：2003-07-04
申请号：KR1020010086531
申请日：2001-12-28
IPC: H04L12/50
Abstract: PURPOSE: A method for discriminating a waste frame in an AAL2 switching apparatus is provided to intentionally discriminate a frame to be preferentially wasted by selecting the frame less affecting a service. CONSTITUTION: An AAL2(ATM Adaption Layer2) switching apparatus receives a request for packet transmission(10). The AAL2 switching apparatus judges whether a packet to be transmitted is voice information having continuity(20). If the packet is neither the voice information nor have discontinuity, a frame drop coefficient is initialized as '0'(100). If the packet is the voice information having continuity, it is judged whether the voice information has changes between sound and non-sound(30). If the packet is the voice information having continuity and without the changes between sound and non-sound, it is judged whether a continuous coefficient is a threshold n(40). If not, the AAL2 apparatus increases the continuous coefficient by 1(50). If so, the AAL2 apparatus initializes the continuous coefficient as '0' and the frame drop coefficient is increased by 1(60). The AAL2 apparatus judges whether the frame drop coefficient reaches m(70). If so, the AAL2 apparatus maintains the current frame drop coefficient(90). If not, the frame drop coefficient is increased by 1(80).
Abstract translation: 目的：提供一种用于鉴别AAL2交换装置中的废帧的方法，通过选择较少影响业务的帧来故意识别优先浪费的帧。 构成：AAL2（ATM适配层2）交换装置接收分组传输请求（10）。 AAL2切换装置判断要发送的分组是否具有连续性的语音信息（20）。 如果分组既不是语音信息也不具有不连续性，则帧丢弃系数被初始化为'0'（100）。 如果分组是具有连续性的语音信息，则判断语音信息是否在声音和非声音之间变化（30）。 如果分组是具有连续性并且没有声音和非声音之间的变化的语音信息，则判断连续系数是否为阈值n（40）。 如果不是，则AAL2装置将连续系数提高1（50）。 如果是，则AAL2设备将连续系数初始化为0，并且帧丢弃系数增加1（60）。 AAL2设备判断帧丢帧系数是否达到m（70）。 如果是，则AAL2装置保持当前帧丢帧系数（90）。 如果不是，帧丢帧系数增加1（80）。
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