Abstract:
PURPOSE: Service quality guarantee method and terminal thereof in consideration of fairness in a competency based wireless network are provided to fairly use a channel being shared resources by a user by providing differentiation according to priority of traffic in a competency based wireless access network and by offering fairness by selection of terminal. CONSTITUTION: An encoder (120) receives data and messages to be transmitted by a terminal (12) on a backward link and encodes the data and messages. A modulator (122) additionally processes the encoded data and messages and provides output samples. A transmitter (128) generates a backward link signal through conditioning of the output samples and transmits the backward link signal to a wireless relay (10). When a token is allocated from the wireless relay, a processor (124) determines priority of data frame by the terminal to use in communication in a manner of dividing the allocated token. [Reference numerals] (10) Wireless relay; (120) Encoder; (122) Modulator; (124) Processor; (126) Memory; (128) Transmitter
Abstract:
PURPOSE: A packet forwarding structure and method in in-network content caching for aggregate content is provided to allow multipacket content caching for efficiently managing a volume of content. CONSTITUTION: A forwarding information base (FIB) includes forwarding information on content to forward an interest packet from a terminal. A pending interest table (PIT) transmits the interest packet to a destination node according to the forwarding information base. A content caching information base (CCIB) includes storage location information of cached content based on the forwarding information base, the pending interest table, and a content name. A content server function block (CSFB) stores the cashed content. The CSFB is connected to the outside through a face corresponding to the CCIB.
Abstract:
PURPOSE: A unit managing method of an optical transmission apparatus is provided to accurately express a hierarchical state and a state with respect to repetition and enhance reliability by preventing occurrence of state inconsistency. CONSTITUTION: A control unit periodically polls each unit and checks whether a unit is mounted/dismounted(201). If a unit is dismounted, the control unit checks a previous state of the unit(207). If the unit was in a mounted state previously(208), the control unit informs a central control unit about the state conversion and changes to the dismounted state(209). If the unit was in a dismounted state previously(210), the control unit maintains the dismounted state(211). If the unit was in a power failure state previously(212), the control unit releases the power failure state(213), transmits corresponding information to the central control unit and changes to the dismounted state(214). If the unit is a type inconsistency state(215), the control unit releases the type inconsistency state(215), transmits corresponding information to the central control unit, and changes to the dismounted state(217).
Abstract:
Disclosed is a method of handing a fault in a software defined networking (SDN) network. First, information about an indirect port switched when a fault occurs in a flow table is set. When a fault is sensed, after information about an indirect port corresponding to the port in which the fault has occurred is obtained, the port in which the fault has occurred is switched into the obtained indirect port based on the obtained indirect port information. Thus, when a fault occurs, the fault can be rapidly handled so that the continuity of traffic transmission can be guaranteed.
Abstract:
본 발명은 가상사설망을 구성하는 기술에 관한 것이다. 이동 중 변하지 않는 가상 홈주소(HoA)와 이동 중 계속적으로 변하는 IP주소(CoA)를 갖는 접속노드로 이동성을 지원하는 가상사설망 게이트웨이는 이동성 지원부, 데이터 보안부 및 가상주소 변환부를 포함한다. 이동성 지원부는 접속노드로부터 패킷이 전달되는 경우, 접속노드의 HoA와 변경된 CoA의 매핑관계를 유지하며 패킷에 대한 이동성 터널을 처리하여 제1 변환 패킷을 생성한다. 데이터 보안부는 이동성 지원부로부터 제1 변환 패킷을 전달받으며, 제1 변환 패킷에 대한 보안성 검사를 수행한다. 가상주소 변환부는 보안성 검사가 완료된 제1 변환 패킷을 수신하여 제1 변환 패킷의 소스 주소인 접속노드의 HoA를 가상사설망에서 사용 가능한 사설망 내부 주소로 변환하여 제2변환 패킷을 생성한다.