T-DMB, The most successful mobile broadcasting service in the world LIM, Young-Kwon DMB Alliance [email protected] 1. Background of T-DMB Rational of new service Slow progress of DAB deployment in Europe Strong and profitable FM radio market Fast growth of new audio devices New Service Demand on mobile video services Requirements & Solutions for new service • No changes to DAB • Additional DAB service • Stream multiplexing inside the service • MPEG-4 OD Frameworks • MPEG-4 SL • MPEG-4 BIFS • Advanced AV codecs • Stream mode Compatibility with existing DAB infra Efficient codecs and transport mechanism Integrated data services for new user experience Strong error protection for multimedia • Reed-Solomon Codes • Convolutional interleaving Requirements for data service for T-DMB Interactivity Integration with AV Synchronization MPEG-4 System & BIFS Hyperlink Graphics and animation T-DMB architecture Interactive menues Additional informations 2. T-DMB deployment in Korea Example of T-DMB services in Korea Broadcaster A B C Type of Service TV Radio Radio DATA DATA TV TV Radio DATA TV TV DATA Rate 512 160 128 128 222 496 496 128 32 496 544 112 5. Interactive DMB Business T-DMB receivers • • • • • • • • • • larger screen (5~7”) regular access passive no return channel Cellphone 48.4% Navigation 37.8% Others 3.8% Notebook 0.6% PMP 9.4% as of June 2008 (12.4million receivers) small screen (2”) limited resources always on (possibly) personal hand-held return channel Convergence Service with BIFS BIFS Interactive convergence service links two services by using both broadcasting and communication capabilities on the devices Traffic information service with TPEG • Real-time Traffic conditions • Dynamic Navigation Conclusion • They are family of services. • Digital Radio Receiver Profile enables compatibility between services. DMB TV • Video centric service • Text, Image • Interactive Data Service DMB Radio • Audio centric service • Text, Image • Interactive Data Service DAB/DAB+ • Audio centric service • Text, Image (Slideshows) Thank You! http://www.dmb-alliance.org/ Questions?