Abstract:
The present invention relates to an operating method of a mobile communications system operating multiple beams. A base station operating method includes: allocating a beam identifier for each of the multiple beams; transmitting the beam identifier corresponding to each of the multiple beams using each of the multiple beams; and notifying, by the terminal, the base station of the beam identifier of the selected beam. According to the operating method of the mobile communications system, a base station can rapidly detect which a terminal enters a specific beam area and rapidly process the movement of the terminal between beam areas with a minimum overhead without performing a complex procedure such as re-conducting a random access or a handover process even when the terminal moves between the beam areas.
Abstract:
A terminal continues to compare the signal intensity of a serving base station and the signal intensity of a target base station and execute the handover to the target base station at the optimal point of the handover instead of executing the handover right upon receiving a handover command from the serving base station. When the point of handover is determined, the terminal transmits a message notifying the execution of the handover to the serving base station, and then executes the handover to the target base station. [Reference numerals] (AA,CC) No; (BB,DD) Yes; (S10) Receive a handover command; (S20) Measure a signal intensity of a target base station; (S30) Determine a handover execution point based on the signal intensity; (S40) Handover execution point?; (S50) Transfer handover alarm messages to a serving base station; (S60) Reply a response message ?; (S70) Execute the handover
Abstract:
본 발명에 따른 방송 서비스 제어 방법은 단말이 방송 서비스를 제어하는 방법으로서, 원하는 방송 컨텐츠를 인지하는 단계, 정보 서버로부터 상기 방송 컨텐츠를 제공할 수 있는 후보 통신망 목록을 수신하는 단계, 상기 후보 통신망 목록에 포함된 적어도 하나의 통신망 각각에게 상기 방송 컨텐츠 제공 여부를 문의하는 단계, 상기 적어도 하나의 통신망 각각으로부터 상기 방송 컨텐츠 제공 여부에 대한 응답을 수신하는 단계, 그리고 상기 방송 컨텐츠 제공 여부에 대한 응답을 기초로 상기 적어도 하나의 통신망 중 접속할 통신망을 선택하는 단계를 포함한다.
Abstract:
PURPOSE: A load balancing apparatus and a load balancing method thereof are provided to distribute a load balancing function to multiple components for preventing the load balancing apparatus from being overloaded. CONSTITUTION: A balancing unit (120) determines at least one server among multiple physical servers included in a server farm as a target server to provide a client a service. The balancing unit determines a forwarding path between the target server and the client and a forwarding rule in respect of the forwarding path. A network unit (110) is positioned on the forwarding path. The network unit comprises at least one or more switches. At least one or more switches forwards a data packet received from the client to the target server on reference to the forwarding rule.
Abstract:
PURPOSE: A virtual node identification apparatus and method thereof are provided to share a service like IaaS(Infra as a Service) in a virtual node unit by receiving a command for creating virtual nodes from a virtual network control server. CONSTITUTION: An identifier creation unit of a virtual node manager registers a node name of a physical node as a natural language type(310). The identifier creation unit creates virtual node sequential numbers(330). The identifier creation unit creates a virtual node identifier(340). The identifier creation unit stores a URN(Uniform Resource Name) virtual node identifier in an identifier information storage table(350). The identifier creation unit notifies the URN virtual node identifier of a virtual network control server which transmits the virtual node creation command(360).
Abstract:
본 발명은 무선통신 시스템에서의 IPv6(Internet Protocol version 6, IPv6)를 지원하는 방법에 관한 것이다. 본 발명의 실시 예에 따른 하나의 서브네트워크로 구성되는 무선통신 시스템은 동일 링크에 존재하는 모든 단말에 공통된 네트워크 프리픽스를 할당하는 액세스 라우터와 ICT(Identification Cache Table)--여기서, ICT는 브릿지와 연결된 각 단말의 MAC 주소, 브릿지와 각 단말간의 단대단(Point-to-Point) 연결에 대한 식별자, IP 주소 및 유효성 플래그(Valid Flag) 값을 갖는 테이블임--를 참조로 동일 링크에 존재하는 모든 노드에게 전달되는 멀티캐스트 주소(link-local scoped all-nodes multicast address)를 목적지 주소(Destination IP address)로 하는 데이터를 전송하는 브릿지 및 기지국을 포함한다. 이때 상기 브릿지는 기지국과의 상호동작을 통해 데이터를 브릿지와 상기 각 단말 사이에 설정된 단대단 연결을 통해 전달한다. 브릿지, IPv6, 이웃탐색, 멀티캐스트, 라우터 광고, 이더넷
Abstract:
A method and a system for selecting a handover target network are provided to select a target network more previously and optimally in a handover situation between heterogeneous networks by checking availability for the resources of each neighbor candidate network and executing handover. A UE(User Equipment), which tries to execute handover, carries out network discovery. In this case, the UE requests a network information server having information associated with neighbor networks to provide information about the neighbor networks. In response to the UE's request, the network information server transmits associated information to the UE(S10). Based on the information received from the network information server, the UE selects handover candidate networks(S11). The UE determines one of the handover candidate networks as a handover target network(S12). Then the UE executes handover to the determined handover target network(S13).
Abstract:
동일한 아이피 서브넷에 포함되는 상이한 가상 근거리 통신망 간의 데이터 스위칭 시스템 및 방법이 개시된다. 본 발명에 의한 데이터 스위칭 시스템은 소스 노드로부터 목적지 노드의 식별자를 요청하는 ARP 요청 패킷을 수신하여 처리하기 위한 스위치, 수신된 ARP 요청 패킷을 분석하여 소스 노드 및 목적지 노드가 동일한 IP 서브넷에 포함되지 않을 경우에 일반적인 IP 스위칭/라우팅 기법을 적용하여 데이터를 목적지 노드로 전달하기 위한 IP 스위칭 모듈, 소스 노드 및 목적지 노드가 동일한 IP 서브넷에 포함되는 상이한 가상 근거리 통신망에 속하는 것으로 판단되면, 목적지 노드의 식별자를 획득하고, 획득된 목적지 노드의 식별자를 이용하여 지역 ARP 테이블을 갱신하고, 스위칭 시스템의 식별자를 이용하여 ARP 응답 패킷을 생성 및 송신하는 지역 ARP 모듈을 포함한다. 본 발명에 의하여 동일한 IP 서브넷에 포함된 상이한 가상 근거리 통신망을 상이한 IP 서브넷으로 사상 시키지 않으면서 데이터를 스위칭할 수 있다.
Abstract:
PURPOSE: A metric information collecting method of hierarchical network is provided to provide a high quality path according to a service type in case of a path request between nodes by selecting a metric of priority according to a service type or a service type combination, selecting an uplink with the best metric value selected for the service type or a service type combination, setting the metric information of the selected uplink as metric information for an upper level link. CONSTITUTION: An upper level node determines whether metric information of an internal link is to be expressed independently by service types or to be expressed in a combination form of the service types(S401). If the metric information is to be expressed independently by each service type, the upper level node selects a representative uplink according to the service type from an uplink list managed by the internal link(S402) and sets metric information of the selected uplink as metric information collected according to each service type of the internal link(S403). If the metric information is to be expressed in the combination form of the service types, the upper level node selects a representative uplink according to the service type combination from the uplink list managed by the internal link(S404), and sets the metric information of the selected uplink as metric information collected according to the service type combination of the internal link(S405).