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Future Market and Challenges of Mobile TV: Seminar Highlights

Explore the evolution, challenges, and standards of Mobile TV, including network architecture, application examples, and future market trends. Discover the hybrid network architecture, standards, and key concerns shaping the mobile TV landscape.

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Future Market and Challenges of Mobile TV: Seminar Highlights

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Presentation Transcript

  1. Mobile TV Jian Huang Seminar of CSCE 5520: Wireless Networks Dept of Computer Science and Engineering University of North Texas

  2. Outline • Introduction • Challenge • Network Architecture • Standards • Application Example • Main Concerns • Conclusion

  3. Future Market • 2007 – 2009 Mobile TV will begin commercial service in earnest • 2010 70 million TV-enabled phones worldwide

  4. Contents and locations • Sports • News • Weather • Music • Major events • Dentists waiting lounge • Bedroom • Bus-stop • Outside in parks

  5. Mobile Service Features • Return channel • Service portal (EPG,ESG) • Control of the terminal specifications and distribution • End-user knowledge and technical expertise in network provisioning

  6. Challenge • 2G networks: 14 Kbps • 3G networks: 2 Mbps • Mobile TV: 300 Kbps

  7. Challenge

  8. Concept: Unicast and Broadcast

  9. Two mobile-TV approaches • Cellular approaches Using existing 3G cellular networks Unicast (user limits, overwhelm) Multimedia Broadcast and Multicast Services standard (MBMS) TDtv

  10. Two mobile-TV approaches • Dedicated networks New infrastructure Not constraint other mobile services DVB-H (digital video broadcasting) DMB (digital mobile broadcast) MeidaFLO (Media forward link only) ISDB-T (Integrated Services Digital Broadcasting-Terrestrial)

  11. Solution

  12. Hybrid Network Architecture

  13. Hybrid Network Architecture

  14. Standard: MBMS (Multimedia Broadcast and Multicast Service) • Use 3G/UMTS architecture • Eliminate new hardware for networks • Impact other services • Two mode: broadcast, multicast • Suited for small, less complex multimedia

  15. Standard: TDtv • IPWireless, T-mobile, Sprint, Orange • Licensed spectrum • Unpaired spectrum • 5 MHz: 5 Mbps • 10 MHz: 9.7 Mbps

  16. Concept: OFDM • Orthogonal frequency-division multiplexing • Split signal into multiple sets • Modulating each onto a different subcarrier (spaced orthogonally) • Transmitted simultaneously without interference

  17. Standard: DVB-H (Digital Video Broadcast - Handheld) • Planning in German • Extension of DVB-T • OFDM • MPEG-4 advanced video coding (AVC) • High efficiency advanced audio coding (AAC) • Resolutions: 176*144 to 2048*1024 • Frame rate: 15 to 30 fps • Data rate: 128 Kbps to 20 Mbps

  18. Standard: DMB (Digital Multimedia Broadcasting) • Used in South Korea, France (LG, Samsung) • Terrestrial DMB OFDM VHF channels 8 (180 to 186 MHz) and 12 (204 to 210 MHz) • Satellite DMB CDMA UHF (2630 to 2655 MHz)

  19. Standard: MediaFLO (Forward link only) • QUALCOMM (Verizon, LG, Sanyo) • OFDM • Digital-TV transmitter to send MediaFLO waveform • MPEG4 AVC and ACC codecs • UHF channel 55 (716 to 722 MHz) • Data rate: 11 Mbps • Frame rate: 30 fps

  20. ISDB-T • A satellite-to-tower system similar to DVB-T • Used in Japan

  21. Mobile Broadcast Standards

  22. Standards Conclusion

  23. Application example: Nokia N92 • DVB-H receiver (470-750MHz) • Video / Audio codecs: H.264 AVC 384kbps@QVGA 15fps/QCIF 30fps and AAC up to 128 kbps) • Mobile TV application for selection, purchase, consumption, and storage of TV programs • Support for interactive services • Mobile TV electronic service guide • Channel and content protection: OMA DRM 2.0, IPSec rel. w IPv6, IPv6 scalable multicast • Large, 2.8" up to 16 million color display (QVGA 320 x 240 resolution) • Fold, twist, and stand design and dedicated media keys • Up to 5 hours watch time, stereo speakers, memory card support up to 2GB • $799.99

  24. Main Concerns • Standards • Allocation of frequency spectrum • DRM and business/revenue models • Infrastructure improvements • Quality of service • Handset cost • Handset performance/battery life

  25. Conclusion • “Killer application” • Balance the practical concerns: hybrid network architecture • Unified standard

  26. Quiz • What’s the difference of unicast distribution and broadcast distribution? • What’s the possible hybrid network architecture for mobile TV • What’s the practical concerns of mobile TV

  27. References • Lida Dailey Paulson, “TV Comes to the Mobile Phone”, IEEE Computer Society, April, 2006 • Norbert Jordan, et. al., “Broadcast Television Services Suited for Mobile Handheld Devices”, ICDT, Aug. 2006 • Nokia Mobile TV Forum, http://www.mobiletv.nokia.com/ • Wireless Solutions: Mobile TV, http://focus.ti.com/general/docs/wtbu/wtbugencontent.tsp?templateId=6123&navigationId=12424&contentId=4618 • SAMSUNG's Digital World, http://www.samsung.com/Products/Semiconductor/MobileSoC/Mobile_TV.htm

  28. Questions

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