Contents Why DMB? When DMB? Where DMB? What DMB? Who DMB? How DMB? Demonstration Conclusion 2/ 27

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1 DMB Home Coming Day 1/ 27

2 Contents Why DMB? When DMB? Where DMB? What DMB? Who DMB? How DMB? Demonstration Conclusion 2/ 27

3 Why DMB? Digital Convergence 3/ 27

4 Why DMB? Anytime, Anywhere, Anyone Transmitter side VHF Receiver side Data Broadcast Server fixed Broadcast Server NPAD Multiplexer PAD Multiplexer High-power Amplifier portable Audio Encoder Ensemble Multiplexer OFDM Modulator mobile PAD : Program Associated Data NPAD : Non-Program Associated Data OFDM :Orthogonal Frequency Division Multiplex DMB Base Standard 4/ 27

5 When DMB? History of Standardization Technical Guidelines for Wireless Facilities DMB Base Standard DMB Video Service Standard DMB Data Service Standards Doc. Type Drafting Group Status MIC Notification Eureka-147 Service Technical Committee Issued June 2003 TTA Standard Eureka-147 Service Technical Committee Awaiting for TTA Plenary Approval TTA Standard Multimedia Service Technical Committee Complete Draft (June 2003) TTA Standard Eureka-147 Service Technical Committee Draft (with a few TBDs) (Sep. 2003) 5/ 27

6 When DMB? Forecasting of Market Evolution Introducing Prototype Receiver Field Test Test DMB Service Official DMB Service Main Operato r Solution Provider Telecom, Broadcasting company Multiplex company Contents Provider DMB-T Sep Dec Mar June, 2005 DMB-S Sep Nov Jan Mar / 27

7 When DMB? Forecasting of Market Volume DMB (Digital Multimedia Broadcasting )Terminal Market DMB Present Position DMB 2004 DMB 2004 DMB : DMB 700, DMB 1800 ) (, DMB Forecast 2007 DMB 3 8 (ETRI,KISDI ) DMB 7/ 27

8 When DMB? News clip on DMB Market Volume 8/ 27

9 Where DMB? Basic Approach Technical Guidelines support VHF band DMB only. Base Standard : basic audio, multiplexing, channel coding, modulation Almost the same as EUREKA-147 (ETSI EN ) Character codes for Korean are added. (same as DTV) The data type code for multimedia service is added. Video Services Standard : video coding, audio coding, auxiliary data broadcast (optional), AV multiplexing, additional channel coding multi-channel (as many as possible) Video compression comparison test has been conducted. Audio compression comparison test has been conducted. Data Services Standard (all optional) Includes essential parts from the EU DAB standards Voice-based Electronic Program Guide (EPG) Support for interactive services through CDMA, IMT-2000, and mobile Internet. 9/ 27

10 Where DMB? System Specification Compression Video : H.264/ Advance Video Coding (AVC) Baseline Profile Audio : ER-BSAC (Error Resilient Bit Sliced Arithmetic Coding) Auxiliary data : BIFS Core2D Graphics Profile (Optional) Multiplexing : SL, MPEG-2 TS Channel Coding Reed-Solomon Coding (204,188) Convolutional Interleaving Required BER : less than 10-7 ~ 10-8 Transmission : EUREKA-147 Stream Mode 10 / 27

11 What DMB? DMB Components AVC AVC Video Video BSAC BSAC Audio Audio BIFS BIFS Interactive Interactive Contents Contents SL SL Encapsulation Encapsulation SL SL Encapsulation Encapsulation SL SL Encapsulation Encapsulation MPEG-2 TS TS Multiplexing Forward Error Correction EU-147 Stream Mode 11 / 27

12 Who DMB? Major Affiliations for Transmitter side Transmitter system Broadcaster / Multiplex company Delivery of Requirement Encoder system Foreign Company (DAB equipment) Transmitter Spec. DMB spec. Domestic Company (Video Encoder) 12 / 27

13 Who DMB? Major Affiliations for Receiver side Big Manufacturer Samsung, LG, Hyundai Mobis, SKT, KTF, LGT Solution Provider,,, Trading Company,,, Others,,,, 13 / 27

14 Who DMB? deployment Schedule Items Transmitter Q 2Q 3Q 4Q 1Q 2Q 3Q Receiver Service Introduce the prototype transmitter Ready to provide a real products for service We are in the DMB environment 14 / 27

15 How DMB? Activities on DMB development 15 / 27

16 How DMB? Encoder Specification Input Video : SDI / S-video/composite Audio : RCA type Analog Stereo / AES-EBU Output DVB-ASI LAN Codec Type Video : part 10 AVC Audio : BSAC Mux : SL packetization & MPEG-2 TS RS coding Convolutional Interleaver 16 / 27

17 How DMB? Encoder Block Diagram System part M4overM2 AVC Encoder BSAC Encoder OD/BIFS Generator SL-packetizer PES-packetizer Section Generator TS-pacektizer RS encoder Convolutional Interleaver IOD Generator PSI Generator 17 / 27

18 How DMB? Encoder board Sample 18 / 27

19 How DMB? Receiver Specification Baseband(DAB decoder) OFDM demodulation DAB demuxing + MUSICAM decoding DMB decoder Convolutional De-interleaver RS decoding DeMux : SL packetization & MPEG-2 TS Video decoder : part 10 AVC Audio decoder : BSAC Functions Up to 7 LCD display MP3 play GPS for car application PC interface for enjoying pre-stored contents 19 / 27

20 How DMB? Receiver Block Diagram MUSICAM Decoder ETSI EN (DAB Receiver Part) DMB Part RF OFDM Demodulator DAB Demuxing Convolutional Deinterleaver RS Decoder TS-Depacketizer PSI Analyzer Section Analyzer PES- Depacketizer IOD Decoder SL-Depacketizer AVC Decoder BSAC Decoder OD/BIFS Parser 20 / 27

21 How DMB? Receiver Sample 21 / 27

22 Demonstration Movie contents Sports contents The live broadcasting 22 / 27

23 Demonstration Movie Contents Video: QVGA, 30 fps Audio: Stereo 23 / 27

24 Demonstration Sports contents Video: QVGA, 30 fps Audio: Stereo 24 / 27

25 Demonstration The live broadcasting 25 / 27

26 Conclusion What will be the next story? 26 / 27

27 Conclusion Acknowledgement DMB / 27

28 Thank You

(JBE Vol. 21, No. 3, May 2016) HE-AAC v2. DAB+ 120ms..,. DRM+(Digital Radio Mondiale plus) [3] xhe-aac (extended HE-AAC). DRM+ DAB HE-AAC v2 xhe-aac..

3 : xhe-aac (Bongho Lee et al.: A Study on the Variable Transmission of xhe-aac Audio Frame) (Special Paper) 21 3, 2016 5 (JBE Vol. 21, No. 3, May 2016) http://dx.doi.org/10.5909/jbe.2016.21.3.357 ISSN