Abstract:
Disclosed are a device for providing an augmented service in a hybrid environment and a receiving device. The device for providing an augmented service according to an embodiment of the present invention includes a real-time data providing unit providing real-time data through a first transmission network; an augmented content providing unit providing augmented content which will be synchronized with the real-time data through a second transmission network; and a multiplexing unit multiplexing and outputting the real-time data, augmented content metadata, and timing information for synchronizing the real-time data and the augmented content. [Reference numerals] (110) Multiplexing unit; (140) Parsing unit; (160) Synchronizing unit; (170) Playback unit; (AA) Start; (BB,II) Augmented area information; (CC,HH) Augmented time information; (DD) 40 minutes; (EE,FF,GG) Augmented content; (JJ) Example 12
Abstract:
다운로더블 제한 수신 시스템에서 보안 모듈 클라이언트의 다운로드 부하 제어 방법이 제공된다. 다운로드 부하 제어 방법은 인증 프록시 서버로부터 제공된 보안 모듈들의 버전 정보 및 다운로더블 제한 수신 시스템에서 발생하는 다운로드 부하를 제어하기 위하여 상기 보안 모듈들에 설치된 보안 모듈 클라이언트들의 버전 정보를 분석하는 단계, 상기 분석 결과를 기초로 상기 보안 모듈들을 위한 대상 보안 모듈 클라이언트의 다운로드 시점과 관련된 다운로드 정책을 결정하는 단계 및 상기 인증 프록시 서버로 상기 결정된 다운로드 정책을 제공하는 단계를 포함한다. 제한 수신, 한정 수신, DCAS, 헤드엔드, 보안 모듈, Secure Micro, 부하, 제어
Abstract:
PURPOSE: A media data transmitting device for an MMT system, a method thereof, a media data receiving device, and a method thereof are provided to supply timing information for temporal synchronization between media and play timing of the media in an MMT system-based media transmission service. CONSTITUTION: An encoder(310) generates a media stream by encoding media data. A buffer(320) stores the media stream. An encapsulating unit(330) generates encapsulation layer data by encapsulating the media stream. A packetizing unit(340) generates a delivery layer packet including timing information by packetizing the encapsulation layer data. A transmitting unit(350) transmits the delivery layer packet. [Reference numerals] (310) Encoder(Media Encoder); (320) Buffer(Buffer); (330) Encapsulating unit(Encapsulator); (340) Packetizing unit(Packetizer); (350) Transmitting unit; (AA) Media data;
Abstract:
PURPOSE: A method for performing direct communications between terminals and the terminal supporting the same are provided to obtain synchronization between the terminals performing direct communications by improving a synchronization channel structure. CONSTITUTION: Direct communications is performed with one or more second terminals using allocated resources for the direct communications between terminals. The resources include a synchronous channel which is used for frequency synchronization and time synchronization between the terminals. The synchronization channel includes a synchronization channel preamble which is used for either preamble detection, time offset estimation, frequency offset estimation, or channel estimation. The synchronization channel preamble is either a first sequence repeating a basic pattern or a second sequence combining the basic pattern with a pattern multiplying the basic pattern by (-1). One or more OFDM(orthogonal frequency division multiplexing) symbols are used for transmitting the synchronization channel preamble.
Abstract:
변조 및 코딩 방식(Modulation and Coding Schemes, MCS) 결정 장치는 복수의 단말이 속한 멀티캐스트 그룹에 복수의 피드백 채널을 할당한다. 그리고 멀티캐스트 그룹에 속한 각 단말로부터 복수의 피드백 채널 중 각 단말의 채널 상태 정보에 따라 선택된 하나의 피드백 채널을 통해 피드백 신호를 수신하며, 복수의 피드백 채널에서 수신한 피드백 신호로부터 멀티캐스트 데이터에 MCS를 결정한다. 피드백 채널, MCS(Modulation and Coding Selection), 채널 상태
Abstract:
PURPOSE: A relay method of a terminal for communication of an emergency terminal in a mobile communication system is provided to enable a terminal within cell coverage to set up an emergency call. CONSTITUTION: Terminals are converted in an emergency call relay standby mode(S310). The terminals are synchronized with a base station(S320). The terminals are switched into an emergency call relay mode(S340). The terminals transmit a resource request message to the base station(S350). The terminals transmits a connection setup message to the emergency terminal(S370). The base station and the emergency terminal transmit data through a relay terminal(S390).