Abstract:
이동통신시스템에서디바이스간직접통신을위한근접도측정방법및 장치가개시된다. 근접도측정방법은게이트웨이로부터수신한패킷에셀 식별자가포함되는지를판단하는단계, 포함되는경우상기셀 식별자가기 저장된셀 식별자와매칭되는지를확인하는단계, 매칭되는경우상기패킷에서상기패킷을송수신하는이동단말들의 IP 주소를추출하는단계, 직접통신중인이동단말들의 IP 주소를포함하는근접리스트를기초로상기추출한 IP 주소와매칭되는 IP 주소를검색하는단계및 상기추출한 IP 주소가상기근접리스트에존재하지않는경우상기추출한 IP 주소를상기근접리스트에등록하고상기이동단말들의근접도를측정하는단계를포함할수 있다.
Abstract:
A method for point-to-multipoint direct communication among devices in a mobile communication system is disclosed. The method for point-to-multipoint direct communication among devices comprises: a step in which a device that intends to provide a device-to-device communication service via a mobile communication network transmits service information including an identifier of the said service and bearer type information to a mobility management entity (MME) which manages mobility of D2D communication terminals; a step in which the MME allocates an identifier of a bearer, to which data of the terminal is transmitted, based on the service information and transmits the identifier of the bearer and the identifier of the service to a base station; a step in which the base station allocates wireless resources for point-to-multipoint direct communication to the terminal based on the identifier of the bearer and the identifier of the service; and a step in which the base station transmits information on the allocated wireless resources for point-multipoint direct communication to a terminal that intends to receive the service.
Abstract:
본 발명은 무선 통신 시스템 및 그 시스템에서의 서비스 플로우 식별자 관리 방법에 관한 것이다. 무선 통신 시스템은 서비스 플로우 식별자의 분산 관리를 위해 다수의 기지국을 통해 이동 단말기들에 대한 무선 통신 서비스를 제공하는 다수의 패킷 접속 라우터-여기서 다수의 패킷 접속 라우터는 이동 단말기에 대한 연결 서비스를 구분하는데 사용되는 서비스 플로우 식별자를 관리하는 서비스 플로우 식별자 제어 장치를 각각 포함함-를 포함한다. 여기서, 서비스 플로우 식별자 제어 장치는 자신이 속한 홈 패킷 접속 라우터에서 생성된 서비스 플로우 식별자와, 다른 패킷 접속 라우터로부터 홈 패킷 접속 라우터로 핸드오프한 이동 단말기에 해당하는 서비스 플로우 식별자 중 다른 패킷 접속 라우터에 의해 생성된 서비스 플로우 식별자를 각각 관리한다. 본 발명에 따르면, 무선 통신 시스템에서 서비스 플로우 식별자를 분산 제어 방식으로 관리함으로써 단일 시스템의 오류에 의해 전체 망 운영이 중단되는 상황이 방지될 수 있다. 서비스 플로우 식별자, 분산 관리, 패킷 접속 라우터, 유일 식별자, 홈 식별자 테이블, 방문 식별자 테이블
Abstract:
PURPOSE: A MBMS(Multimedia Broadcast/Multicast Service) system and a data-transmit-receiving method are provided to confirm the scheduling information and to selectively receive the subframe of multimedia data. CONSTITUTION: An information generator(120) creates the scheduling information for a plurality of subframes corresponding to each of a plurality of scheduling intervals. A transmit unit(130) in advance transmits the scheduling information corresponding to the first scheduling interval among a plurality of scheduling intervals to a terminal. The transmit unit makes the mapping the radio resource assignment information for each of a plurality of subframes, a plurality of subframes corresponding to the first scheduling inverval. The transmit unit transmits the mapped information to the terminal.
Abstract:
PURPOSE: A broadcasting service control apparatus and method thereof are provided to control scheduling information about a broadcasting service within a group and to implement dynamic scheduling about a broadcasting service. CONSTITUTION: A broadcasting group generator(101) groups a broadcasting service into one broadcasting group. An ID allocation unit(102) allocates an TEID(Tunnel Endpoint Identifier) into the generated broadcasting group. A control unit(103) controls the scheduling information about the broadcasting service. A synchronization protocol generating unit(104) generates a synchronization protocol about the synchronization of the broadcasting service. A transmitting unit(105) transmits the synchronization protocol to the gateway.
Abstract:
PURPOSE: A handover apparatus between heterogenous networks and a method thereof are provided to offer for offering a continuous connection service with minimizing an IP packet loss. CONSTITUTION: A pre-registering unit(120) decides a pre-refistering point based on wireless resource information collected by a wireless resource collecting unit. The pre-registering unit processes a pre-registering on a target network for a handover on the pre-refistering point. A handover performing unit(130) decides a handover performing in a handover situation generation in stage of pre-registering by the pre-registering unit. The handover performing unit cancels a connection between a source network and a user terminal. The handover performing unit connects the user terminal with the target network.