Streaming TPEG contents in the MPEG-4 system over DMB network

Telematics, a compound word with Telecommunications and Informatics, represents a kind of information service which, for example, provides traffic, public transport and emergency information to automobile terminals via mobile communication networks such CDMA and GSM. Moreover telematics services make it possible for users to access their necessary information anytime anywhere. TPEG (Transport Protocol Experts Group) is an expert group which aims at defining a byte-oriented protocol for broadcasting of transport information. Transport information includes Road Traffic Messages, Public Transport Information and Location Information which enable safe and efficient driving for drivers. TPEG data is to be serviced over the DAB (Digital Audio Broadcasting) system so that traffic and travel information can then broadcast to the DAB terminals. Recently, Korea begins to start the DMB (Digital Multimedia Broadcasting) service which is based on H.264/MPEG-4 AVC (Advanced Video Coding), BSAC (Bit Sliced Arithmetic Coder) over the MPEG-4 System. The DMB service has an aim at providing digital broadcasting service to mobile terminals, and utilizes the stream mode of the DAB system in order to deliver streaming contents over the DAB network. We include the TPEG contents in the MPEG-4 System as an additional object in addition to the DMB video object (H.264/MPEG-4 AVC) and audio object (MPEG-4 BSAC). In our implementation, the TPEG content with the DMB content allows to be delivered in a unified framework. This service can be a converging way of broadcasting and telematics, which is called Broadtelematics. In this paper, we show a scheme for the TPEG service over the DMB terminal, and exhibit the system implementation and experimental results.