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公开(公告)号：KR101070407B1
公开(公告)日：2011-10-06
申请号：KR1020090011291
申请日：2009-02-12
Applicant: 서울대학교산학협력단
CPC classification number: Y02D70/00
Abstract: 무선네트워크시스템은네트워크에서요구되는패킷전송지연시간과네트워크의데이터전송량을만족하는범위내에서가장큰 동기주기값을동기주기로하여수신노드로동기패킷을전송하는송신노드, 및상기송신노드로부터수신된동기패킷을이용하여동기를맞추는수신노드를포함한다. 따라서, 무선네트워크시스템은무선네트워크의전력소모량을크게줄일수 있다.
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公开(公告)号：KR101070415B1
公开(公告)日：2011-10-05
申请号：KR1020090134540
申请日：2009-12-30
Applicant: 서울대학교산학협력단
IPC: H04L29/06 , H04L12/771
Abstract: 패킷분류에사용될수 있는테이블을관리(예컨대, 생성, 갱신)하는기술이개시된다. 개시된기술중 일실시예에따른방법은, (a) 키들각각에대응되는초기페이즈의 C테이블과 B테이블을생성하는제1 과정을룰 부분집합들각각에대해수행하고, 상기키들각각에대응되는초기페이즈의 c테이블과 b테이블을생성하여다음페이즈로진행하는단계; (b) 미리설정된트리구조에따라, 자식노드들의 B테이블들을머지하여현재페이즈의각 C테이블과각 B테이블을생성하는제2 과정을상기룰 부분집합들각각에대해수행하고, 상기트리구조에따라자식노드들의 b테이블들을머지하여현재페이즈의각 c테이블을생성하는단계; 및 (c) 현재페이즈가중간페이즈이면, 현재페이즈의각 c테이블에대응되는 b테이블을생성하고다음페이즈로진행하여상기 (b) 단계로복귀하고, 그렇지않으면, 매칭룰 테이블을생성하는단계를포함한다.
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公开(公告)号：KR1020100092102A
公开(公告)日：2010-08-20
申请号：KR1020090011291
申请日：2009-02-12
Applicant: 서울대학교산학협력단
Abstract: PURPOSE: A wireless network system using an energy saving synchronization method is provided to reduce power consumption of a wireless node, thereby lengthening lifetime of a network. CONSTITUTION: Sensor nodes(120a,120b,120c,120d,120e,120f,120g,120h) wirelessly transmit and receive data. When a sensor node of a sensor network(110) transmits and receives the data, the sensor node periodically or aperiodically synchronizes the data with the sensor node. The sensor node receives the data only during fixed time according to a MAC(Medium Access Control) protocol. The sensor node executes a low-duty cycle operation in a sleep state.
Abstract translation: 目的：提供一种使用节能同步方法的无线网络系统，以减少无线节点的功耗，从而延长网络的使用寿命。 构成：传感器节点（120a，120b，120c，120d，120e，120f，120g，120h）无线地传输和接收数据。 当传感器网络（110）的传感器节点发送和接收数据时，传感器节点周期性地或不定期地使数据与传感器节点同步。 传感器节点仅在固定时间内根据MAC（媒体访问控制）协议接收数据。 传感器节点在休眠状态下执行低占空比运算。
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公开(公告)号：KR1020110077869A
公开(公告)日：2011-07-07
申请号：KR1020090134540
申请日：2009-12-30
Applicant: 서울대학교산학협력단
IPC: H04L29/06 , H04L12/771
CPC classification number: H04L45/54 , H04L45/16 , H04L45/745
Abstract: PURPOSE: A table management method of packet classification is provided to effectively administrate a table that can be used for a packet classification. CONSTITUTION: A b tables of child nodes is merged according to pre-set tree structure. Each c table and the b table in a current phase that is created by a second process is performed about each by each of rule subsets. The b table of the child nodes are merged and each the c table of current phase is created according to the tree structure(S720). If the current phase is a middle of a phase, the b table corresponding to each c table of the current phase is created(S770). If the current phase is not the middle of the phase, a matching rule table becomes.
Abstract translation: 目的：提供分组分类的表管理方法，有效管理可用于分组分类的表。 构成：根据预设的树结构合并一个子节点的b表。 每个c表和由第二个处理创建的当前阶段的b表按照每个规则子集执行。 合并子节点的b表，并根据树结构创建当前阶段的每个c表（S720）。 如果当前阶段是相位的中间，则创建与当前阶段的每个c表对应的b表（S770）。 如果当前阶段不是相位的中间，则匹配规则表变为。
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