170 likes | 343 Views
GSC11_GRSC4_21. GSC-11 Standardization Status of TTA T-DMB (Terrestrial Digital Multimedia Broadcasting). 28 May ~ 2 June, 2006 TTA. Mobile. CAR AV. Satellite DMB. PDA. (ITU-R System E). Portable. Cell phone. Broadcasting Station. Audio. Lap top/PC. Fixed. Terrestrial DMB.
E N D
GSC11_GRSC4_21 GSC-11Standardization Status of TTA T-DMB (Terrestrial Digital Multimedia Broadcasting) 28 May ~ 2 June, 2006 TTA GSC: Standardization Advancing Global Communications
Mobile CAR AV Satellite DMB PDA (ITU-R System E) Portable Cellphone Broadcasting Station Audio Laptop/PC Fixed Terrestrial DMB 1. Concept of DMB Digital Audio Broadcasting (DAB) + Video Terrestrial DMB (T-DMB) & Satellite DMB (S-DMB) ※ The ITU terminology, DAB(Digital Audio Broadcasting) is extended to DMB in Korea to highlight the characteristics of mobile multimedia broadcasting. GSC: Standardization Advancing Global Communications
Band VHF UHF TV/T-DMB (CH7∼13) Usage TV (CH 2,3,4) TV (CH 5,6) FM Radio TV (CH 14∼60) 174∼216 MHZ Frequency 54∼72 MHZ 76∼88 MHZ 88~108 MHZ 470~752 MHZ 2. Frequency allocation ofT-DMB T-DMB: VHF Band-III(TV CH 7~13, 174~216MHZ) - diffracted characteristic (reaching long distance) < Frequency Allocation in Korea > GSC: Standardization Advancing Global Communications
TTA • TerrestrialDMB Standard • Satellite DMB Standard DAB T-DMB S-DMB DMBData 2004.4Q~ 2005. 2Q 2003.10 2004.6 2004.8 DMBData standard Terrestrial DAB Standard ETSI WorldDAB Forum T-DMB Approval Proposal to ETSI Work item Approval of ETSI ETSI Approved T-DMB 2005.2 2005.6 2004.12 2005.1 ITU-R 6M Recommendation Approval 6M Chairman’s Report adopted T-DMB PDNR Approval 2006.4Q 2004.10 2005.4 3. T-DMBstandardization GSC: Standardization Advancing Global Communications
T-DMB Specification 수신 차단 방안 강구 Video : MPEG-4 AVC(Advanced Video Coding) Baseline profile Audio : MPEG-4 BSAC Data service : MPEG-4 BIFS Core2D Profile DAB TTAS.KO-07.0024/ETSI EN 300 401 Data Broadcasting - MPEG 2 TS streaming TTAS.KO-07.0026/ETSI TS 102 427 User Application - DMB Video Service TTAS.KO-07.0026/ETSI TS 102 428 4. T-DMB in TTA & ETSI Standards Application Layer Transport Layer Transmission Layer T-DMB Data Service Standard: TTAS.KO-07.0028 T-DMB MOT (Multimedia Object Transfer) ,TDC (Transparent Data Channel) IP Data Tunneling, BWS Standard ETC. Data Service GSC: Standardization Advancing Global Communications
5. DMB Products and Schedule Products • T-DMB Receivers (by 2006.03) - Mobile Phone Type / 100,000 sets, Lap-top PC Type / 53,000 sets, USB Type / 90,000 sets, Vehicle mount Type / 150,000 sets Etc. (Digital Cam., PDA) / 60,000 sets Total : about 460,000 sets Time Schedule • Commercial services of T-DMB in the Seoul Metropolitan area were launched in Dec. 2005 • Commercial services of T-DMB in the Korean area will be launched from 2006 to 2008 • * T-DMB Pilot Project in Germany at SEP, 2005 • * Commitment and trials of T-DMB at Germany, China, France, Norway etc. GSC: Standardization Advancing Global Communications
Quick Announce Service via DMB network in case of Earthquake, Tsunami etc. Conditional Access is needed (Considering the service requests of DMB Service Providers) RF Sensitivity & Characteristics of T-DMB Receiver Delivery of TPEG-based TTI Services Java Application Program Environment Binary Version & XML Version EPG for T-DMB 6. On-going Standardization Issue EPG (Electronic Program Guide) EAS (Emergency Alert System) CAS (Conditional Access) Receiver Guideline TTI (Traffic & Travel Information) Java Middleware GSC: Standardization Advancing Global Communications
6. Brief • New digital multimedia broadcasting technologies employed • TTA published T-DMB standards and Standardization is on progress. • T-DMB specification was legislated as ETSI standard and will be legislated by ITU-R • T-DMB can provide TV, radio and various data services anywhere and anytime & Mobile multimedia functions added to mobile phones • Various type of T-DMB receivers developed and is developing by many electronic companies • Commercial T-DMB services launched in December 2005 around Seoul metropolitan area, and will be available nationwide soon • China, Germany, England and many other countries consider T-DMB services GSC: Standardization Advancing Global Communications
7. Conclusion • According to emergence of digital technology in the field of broadcasting and convergence trend between communication and broadcasting technology, we should note that the advanced digital broadcasting standardization such as DMB, IPTV is being proceeded at the various standardization organizations. • It is necessary to share the information on Digital Multimedia Broadcasting standardization including mobile broadcasting between SDOs GSC: Standardization Advancing Global Communications
Annex GSC: Standardization Advancing Global Communications
1. World-Wide Promotion Status of T-DMB • T-DMB Commercial Service : South Korea • T-DMB testing : UK, Germany, France, • Norway, China, Canada • T-DMB Planning : Mexico GSC: Standardization Advancing Global Communications
2. Service Vision of T-DMB • TV-like service at motion • Excellent mobile reception at max. 200 km/h • VCD-like video quality on 5-7 inch LCD • Max 352*288 @ max 30 frames/sec • High quality audio service • CD-like quality audio broadcasting beats analog FM • Audio possibly with slide show • Data services • EPG, News, Weather, Stocks, Traffic Information etc. • Provision of local and remote interactivity • Mobile-phone-like multimedia service • free services like conventional TV • high-bandwidth data-box in my pocket for free reception (compared to mobile communication network) GSC: Standardization Advancing Global Communications
3. Exampleof T-DMB Channel Allocation 6 MHz TV Channel Block A Block B Block C 1.5 MHz/block GSC: Standardization Advancing Global Communications
Error Resilient Audio Coding. Rich Media Presentation + Interactive Capability Compression Layer Advanced Video Coding Tech. ITU-T H.264/ MPEG-4 AVC MPEG-4 BSAC MPEG-4 OD/BIFS Synchronization Layer MPEG-4 SL MPEG-4 SL MPEG-4 SL Multiplexing Layer MPEG-2 TS Protection Layer RS Coding (204,188) Convolutional Interleaving (17x12) Transmission Layer Eureka-147 (ETSI EN 300 401) 4. T-DMB Technology GSC: Standardization Advancing Global Communications
CONTENTS REQUIREMENTS MODEM Standard ETS 300 401 / Coded OFDM - 4 DPSK Frequency & Resolution Band III (174~240MHz) or L-Band , 16KHz Step Recommended Sensitivity -96dBm @ Pe=1x10-4 (Viterbi decoder out) Data Rate Resolution 8Kbps @ stream mode input of DAB multiplexer Outer Error Correction Code RS Decoder : (n,k) = (204,188) Interleaver : 12 branch 17 Byte depth Multimedia Multiplexer MPEG-2 / TS Video Compression : MPEG-4 / H.264 Frame Rate : up to 30fps Format : QCIF / QVGA / CIF / WDF Audio Compression for Audio Service : MUSICAM up to 384Kbps Multimedia Service : MPEG-4 / BSAC & AAC+ Data Data Service for Multimedia service : BIFS (optional) Packet service : MOT 5. T-DMB Layer Structure GSC: Standardization Advancing Global Communications
Mobile & Portable 6. Benefit and Effects of T-DMB Service Enhance quality of life by allowing people to enjoy multimedia broadcasting service anytime, anywhere for free or at a low price Industry Boost the digital device & contents industry Broadcasters Leading the convergence service of telecommunications and broadcasting GSC: Standardization Advancing Global Communications
Mobile Receiver STL Gap Filler . Cellular / Mobile IP Broadcaster Interactive Service Mt. Mt. Upload Portable Receivers Contents Production Center 7. T-DMB Service Systems GSC: Standardization Advancing Global Communications