Abstract:
클라우드무선접속망에서 MBMS 제공장치및 이를이용한 MBMS 제공방법이개시된다. 본발명에따른 MBMS 제공장치는, 복수의 DU 중에서 MBMS를제공하는네트워크계층들을통합한제3 계층및 상기복수의 DU 중에서 MBMS를제공하는데이터링크계층들을통합한제2 계층을포함한다. 따라서, 통합한각 계층을통해 MBSFN 동기영역별로 MBMS를수행함으로써, 불필요한부하의발생을방지할수 있고, 이로인해통신망의성능이향상된다.
Abstract:
Disclosed are a method and an apparatus for establishing discovery and a communications resource of cellular based device to device direct communications. A method for establishing discovery and a communications resource of cellular based device to device direct communications includes steps of receiving a device to device direct communications service request message including information on a service type established with respect to a service and information on at least one of a discovery type and a communications type from a device providing the service in a device to device direct communications scheme by a device for managing devices performing device to device direct communications using a mobile communications network; allocating an identifier for the device to device direct communications based on the received device to device direct communications service request message; and transmitting the allocated identifier, the information on the service type, and information on at least one of the discovery type and the communications type to a base station serving the device in order for the base station to allocate discovery resource and communications resource to the service.
Abstract:
방송 서비스 제어 장치 및 방법이 개시된다. 본 발명의 실시예들에 따르면, 전송 특성이 동일한 방송 서비스를 방송 그룹으로 그룹핑하고, 상기 방송 그룹에 포함된 방송 서비스에 대한 스케쥴링 정보를 제어함으로써, 방송 서비스에 대하여 동적으로 스케쥴링할 수 있다.
Abstract:
PURPOSE: A synchronization method for broadcast multicast service and an apparatus thereof are provided to dynamically solve inconsistency of broadcast service start time among base stations which can occur in starting the broadcasting service. CONSTITUTION: If it is later than service start setting time among checking times of checking the change about the broadcasting service with a constant period, a calculation unit (420) compares a change checking time closest to the service start setting time with the service start setting time. If it is judged that the change checking time is later than the service start setting time over pre-set inside float time, the calculation unit determines the change checking time as a service start time when the broadcasting service starts. A communication unit (430) transmits the information about the service starting time to at least one base station. [Reference numerals] (410) Receiving unit; (420) Calculation unit; (430) Communication unit; (AA) Session start request message; (BB) Session start setting time; (CC,DD) Service start time
Abstract:
멀티미디어 방송/멀티캐스트 서비스 시스템의 데이터 송신 방법이 개시된다. 본 데이터 송신 방법은, 복수의 서브프레임들로 구성된 멀티미디어 데이터를 복수의 스케줄링 구간으로 스케줄링 처리하고 스케줄링 정보를 생성한 후, 스케줄링 정보를 미리 단말로 전송함으로써, 제1 스케줄링 구간에 대응하는 복수의 서브프레임들이 스케줄링 정보에 기초하여 단말에서 선택적으로 수신될 수 있도록 한다. 따라서, 단말은 필요한 서브프레임을 선택적으로 수신할 수 있게 되어 데이터 수신에 따른 전력 소모를 감소시킬 수 있게 된다. 스케줄링, 스케줄링 구간, 서브프레임, 무선 자원 할당
Abstract:
PURPOSE: Multimedia broadcast and multicast service(MBMS) counting method and apparatus in a multimedia broadcast multicast service single frequency network(MBSFN) is accurately manage the number of user equipment(UE) receiving services. CONSTITUTION: An MBSFN-region-configuration message is received from a base station(S420). Information of MBMS-selected-services under a radio-resource-control(RRC) connection state is varied according to the selection or the termination of a first service requiring MBMS-counting(S430). An MBMS-update-requesting message containing the first list of the selected service and the second list of the terminated service is transmitted to the base station. The RRC connection state is changed into an RRC-idle state.