Presentation done during SMPTE Toronto Chapter 2-day BootCamp training on June 8th, 2010

1. A DVB-H Tutorial
Video over IP
goes Wireless
Marie Josée (MJ) Drouin,
SMPTE Toronto Chapter BootCamp, June 8th, 2010
© D. Tech 2010

2. Who am I?
 Director with 15 years of Media experience, I lead technical teams of up to
30 people and 3 managers to deliver most aspects of the business -
Operations, Customer Services, Information Technologies, Project
Management, Engineering, and Procurement. I developed expertise in
MJ Drouin© - May 19th, 2010
managing cable, wireless, satellite, transmission, engineering and software
development. I worked at Bell, Teleglobe, Intelsat, CBC and as a expert
consultant.
 Professional Engineer, Masters in Technological Management, ITIL
foundation, PMP
- VSF
 I have extensive experience in speaking since the 90's (ouf!), subjects were
always a mix of technologies, commerce and management.
 Past engagements included: My video is a file, now what? (2010), Service Oriented
Architecture: Tutorial for the Broadcasters (2010), Pitfalls of SW development: What every
executive should know (2009), 8 weeks on Twitter: I love it! (2009), The Future of Broadcast
Archive Systems (2008), DVB-H: Video over IP goes Wireless (2006), HDTV distribution
(2005), Video over IP (2004) and, Several broadcast technical training (1994-1998): Video
101, Digital Video and Compression 201, Video testing techniques 301.
 http://www.linkedin.com/in/mjdrouin
 http://twitter.com/mjdrouin
2 © D. Tech 2010

3. © D. Tech 2010

4. Agenda
1. Video over Mobiles
2. DVB-H Technical Review
3. System Technical Review
© D. Tech 2010

5. Introduction
 Smart Phones = 50% by Q3 2011
 50% users watch video on Smart Phones
Source: Nielsen’s data from Q3 2009 © D. Tech 2010

6. Video Over Mobiles
Marie Josée (MJ) Drouin,
SMPTE Toronto Chapter BootCamp, June 8th, 2010
© D. Tech 2010

7. Mobile: What’s different?
 Traditional DTV Display
 Uses wireline or large antennas
 Has unlimited 110V/220V power
 Is fixed
 Methods to view Video on mobile
 PodCast, mobile PVR
 Internet services
 Applications
 3G/4G cell technology
 Parallel broadcast networks
© D. Tech 2010

8. Broadcast or Telecom?
Source: August 2009 CRTC Communications Monitoring Report © D. Tech 2010

9. Video over Mobile Standards
Standards Origin Dates
ATSC-M/H ATSC T: 2006
US D: 2009
DVB-H DVB (ETSI) T: 2004
International D: 2006
Single-segment
DiBEG (ARIB) T: 2004
ISDB-T
Japan, Brazil D: 2006
DMB-T/H DAB/DMB (ETSI) T: 2006
China, Korea D: 2006
Legend: T: Public Trial, D: Commercial Deployment © D. Tech 2010

10. Standards per Country
© D. Tech 2010

11. What is DVB-H?
 Built by DVB
 Standardized by ETSI
 Unidirectional
 Based on DVB-T, Digital TV
terrestrial transport
 IP packets at the Network Layer
 Can be muxed with DVB-T CBR
services
© D. Tech 2010

12. DVB-H Technical Review
Marie Josée (MJ) Drouin,
SMPTE Toronto Chapter BootCamp, June 8th, 2010
© D. Tech 2010

13. DVB-T: OSI Layer 1
3
2
DVB-T 1
Source: ETSI TR 102 377 v1.2.1 (2005-11) © D. Tech 2010

14. DVB-T Modifications (L1)
 DVB-H signaling in
TPS-Bits: Mandatory
 Mandatory Signaling: Cell ID, Time Slicing
 DVB-H Options using TPS bits signaling:
MPE-FEC, Interleaver depth, 4K mode
 4K FFT size mode: Optional
 In-depth symbol interleaver: Optional
 8K interleaver for 2k and 4k modes
© D. Tech 2010

15. DVB-H Protocol Stack & OSI L2
3
DVB-H
2
DVB-T 1
Source: ETSI TR 102 377 v1.2.1 (2005-11) © D. Tech 2010

16. DVB-H Innovations (L2)
 Time-slicing: Mandatory
 Power reduction
 MPE-FEC: Optional
 C/N
 Doppler
 Impulse interference
© D. Tech 2010

17. DVB-H System
PSI/SI NIT
Video
INT
Video TS DVB-T Receiver
MPEG4
MPEG4
MPEG4
Encoder IP
Encoder
Encoder
RF IRD
H264 RF
RF
IP Backbone DVB-H Receiver
* Inspired by ETSI TR 102 377 v1.2.1 (2005-11) © D. Tech 2010

18. Solving the Layer 1&2 Issues
 Mobility – Doppler:
 4K FFT size
 Power consumption:
 Time Slicing
© D. Tech 2010

19. Doppler Effect (L1)
Mobiles
IRD
Source: ETSI TR 102 377 v1.2.1 (2005-11) © D. Tech 2010

20. FFT Size Impacts (L1)
OFDM parameters, 16QAM, GI 1/4, 6MHz Modes, FFT size
FFT symbol size characteristics 2K 4K 8K
Number of Carriers (K) 1705 3409 6817
Duration of symbol - Tu (µsec) 299 597 1195
Carrier Spacing - 1/Tu (Hz) 3348 1674 837
Duration of guard interval - Δ (µsec) 75 149 299
 FFT size Impacts on RF performance
 Doppler Frequency – Mobility
 Echo delay – Maximum SFN radius area
 Channel estimation – Demodulator complexity & power
 Phase noise resistance – Robustness
Source: ETSI TR 102 377 v1.2.1 (2005-11) & ETSI EN 300 744 V.1.5.1 (2004-11) 2010
© D. Tech

21. Power Consumption (L2)
Source: ETSI TR 102 377 v1.2.1 (2005-11) © D. Tech 2010

22. Time-Slicing (L2)
Equivalent
Limited by the
memory of
the receiver
MPE Sections
Source: ETSI TR 102 377 v1.2.1 (2005-11) © D. Tech 2010

23. Solving the Layer 3&4 Issues
 IP Datacast: Content Delivery Protocol
(CDP)
 Architecture for Convergence of Broadcast
and Mobile Services (TM-CBMS)
© D. Tech 2010

24. CDP OSI Layer 3
CDP 3
DVB-H
2
DVB-T 1
Source: ETSI TR 102 377 v1.2.1 (2005-11) © D. Tech 2010

25. CDP Protocol Stack (L3&4)
7
ISO 13818
6
SMPTE 2022
RFC 2250 ETSI
5
RFC 3984
RFC 3550
RFC 3926
RFC 2616
4
3
ETSI 3GPP 2
Return Channel
– not mandatory 1
Source: ETSI TS 102 472 V1.1.1 (2006-06) © D. Tech 2010

26. System Technical Review
Marie Josée (MJ) Drouin,
SMPTE Toronto Chapter BootCamp, June 8th, 2010
© D. Tech 2010

27. Putting it together: TM-CBMS
Source: ETSI TR 102 469 v1.1.1 (2006-5) © D. Tech 2010

28. Future: Wireless Billboards?
© D. Tech 2010

29. Conclusion: DVB-H
 Fully Standardized End-to-End Service
 Backward Compatible
 Developed new Features for Mobiles
 IP Based Service
 Services are tested and rolled-out all over
the World
 ATSC-M/H faces very similar complexities
© D. Tech 2010

30. mjdrouin@gmail.com
Thank You
Marie Josée (MJ) Drouin,
SMPTE Toronto Chapter BootCamp, June 8th, 2010
© D. Tech 2010