1. Comparison of DVB-T2
with 1st
Generation DTT
Solutions
Dr. Peter Siebert
DVB Project Office
Geneva/Switzerland

2. Introduction to DVB
DVB started in Europe in 1993 – but 100 of its 230
Members are from non-European companies
DVB’s members are drawn from:
Broadcasters
Network operators
Manufacturers
Regulators
There are more than 100 DVB standards
DVB‘s purpose is to create and to promote video
broadcast standards

3. DVB: The market leader in digital TV
Screen DigestTM
study reported that
“DVB is the most widely used transmission standard in the world“

4. Where we are
DVB-S/S2 is the standard for Direct-to-Home worldwide
DVB-C is deployed widely

5. DTT Standards World Map

6. DTT Beauty Contest

7. What is beauty

8. Relevant Criteria for DTT Standard Comparison
Efficiency (Capacity vs. Robustness)
Capacity (how much can I transmit)
Robustness (Cost of transmit network)
Single Frequency Networks (SFN)
Cost
Private Sector receive equipment (STB, iDTV)
Broadcaster Capital Expenditure (CAPEX)
Broadcaster Operational Expenditure (OPEX)
Functionality
EWS
Mobile TV
Pay TV
Interactivity
Local Content

9. Efficiency

10. Efficiency

11. Data rates and C/N for DVB-T2 (6 MHz
channel)

12. Efficiency: Single Frequency Network (SFN)
Large Guard Intervall: up to 160 km for one SFN cell
32 k FFT: Efficient use of guard intervall

13. How to benefit from improved efficieny
Higher data rate per channel
More programs
HDTV quality
Less spectrum required (to be used for other services)
Improved robustness
Lower cost for building the transmit network (CAPEX)
Lower cost for operating the network (OPEX)
Easier reception (indoor antennas)

14. Cost

15. Cost: Private Sector Receive Equipment (STB, iDTV)
Prices of consumer equipment are determined by
economy of scale and competition
DVB technology with 70% world wide market share is
available at very low prices
Test: Check STB prices on Ali Baba for T2

16. Cost: Receive Chip Sets (Sony) Second Generation

17. Cost: Receive Chip Sets (Broadcom) Single Chip SoC

18. Cost: Receive Chip Sets (ST) Single Chip SoC

19. Cost: Broadcaster Operational Expenditure (CAPEX)
DVB-T2 allows for improved robustness
Less transmitter needed
Lower transmit power
DVB-T2 supports Peak to Average
Power Reduction (PAPR) mechanisms
Significant savings in network cost

20. 53
DVB-T2: FFT 32K GI 1/16 (299 µs) 256QAM 3/4 (31.01 Mbps) C/N = 20.3 dB (+ 1.0 dB)
DVB-T2: FFT 32K GI 1/16 (299 µs) 256QAM 2/3 (27.57 Mbps) C/N = 18.1 dB (- 1.2 dB)
DVB-T2: FFT 32K GI 1/16 (299 µs) 16QAM 2/3 (13.79 Mbps) C/N = 9.1 dB (-10.2 dB)
DVB-T2: FFT 32K GI 1/16 (299 ms) 16QAM 3/4 (15.51 Mbps) C/N = 10.4 dB (-8.9 dB)
Reference Mode
Same Coverage mode
Same Payload Mode
ISDB-T: FFT 8K GI 1/4 (252 ms) 64QAM 2/3 (14.60 Mbps) C/N = 19.3 dB ( 0.0 dB)
(+ 90%)
(+ 110%)
(+10db)
(+ 9db)

21. Cost: Power Savings with DVB-T2

22. Cost: Broadcaster Operational Expenditure (OPEX)
Satellite to be used for
distribution to transmit towers
Transmission is done with DVB-
S2
Improved robustness allows for
less transmitters and/or lower
power
Reduced cost for electricity (or
diesel)
Synergie in Service Information
between satellite and cable
Metadata to be produced only once

23. Features

24. Emergency Warning System (EWS)
Yes, we can!
Based on DVB SI receive devices can display a
message and or be switched remotely to a EWS channel
USA and Japan are the only two countries with a
broadcast EWS solution

25. MPLP Demo at Broadcast Asia, June 2011

26. Time 825
Speed:
134.3km/h
Mobile TV: DVB-T2 Reception on German Autobahn

27. T2, T2-Lite and NGH
DVB-T2 covers fixed as well as mobile
use cases
DVB-T2-Lite is basically a subset of T2 to
support mobile for terrestrial broadcasters
Ideal solution for a broadcast network to start
mobile services
Will be supported in DVB-T2 chipsets
FEF-TDM structure allows total flexibilty
Broadcast for fixed and mobile in one
channel
NGH is the ultimate air interface for all
types of mobile broadcast
Can be combined with T2
Highest efficiency and operational flexibility
T2
T2-
Lite
NGH

28. DVB 2nd generation Conditional Access
System
DVB-CSA3 provides the necessary security for high
value content (128 bit key length).
About 50% of DVB devices are for Pay-TV

29. Interactivity
DVB supports several interactive solutions:
DVB MHP/GEM
HbbTV
MHEG
Wide range of choices for operators of satellite, cable
and terrestrial broadcast networks

30. Relevant Criteria for DTT Standard Selection
Efficiency (Capacity vs. Robustness)
Capacity (how much can I transmit)
Robustness (Cost of transmit network)
Single Frequency Networks (SFN)
Cost
Private Sector receive equipment (STB, iDTV)
Broadcaster Capital Expenditure (CAPEX)
Broadcaster Operational Expenditure (OPEX)
Functionality
EWS
Mobile TV
Pay TV
Interactivity
Local Content

32. Demonstration

33. Demo Parameter

34. T2/T2-Lite USB Stick Prototype

35. Promoting Digital TV Broadcasting Worldwide

36. Membership 2013
Membership Opportunities
Information: learn the latest news on DTT worldwide
Network Implementation: meet the DTT Industry –
broadcasters, regulators, manufacturers and network operators
Cooperation: work with industry organisations to co-ordinate
common positions and recommendations related to DTT services
Access: participate in DigiTAG events attended by national DTT
decision makers
Marketing: opportunities to promote member business at
events

37. For more information on membership please:
www.digitag.org
Contact DigiTAG Project Office:
Rosemary Smith – smith@digitag.org
Nicole Frey – frey@ebu.ch
DigiTAG 2.0

38. Countries where DVB-T2 is deployed
Austria
Belgium
Colombia
Croatia
Denmark
Finland
Ghana
Haiti
Italy
Kenya
Kyrgyzstan
Malawi
Namibia
New Zealand
Nigeria
Russia
Saudi Arabia
Seychelles
Suriname
Switzerland
Thailand
Uganda
United Kingdom
Vietnam
Zamibia

39. DVB’s main achievements

40. Second Generation Broadcasting Standards
Driver for 2nd generation
Additional capacity for HD and 3D
Improved chip set technology
New algorithms
New business models
Features of 2nd generation
Close to theoretical limits
Capacity and/or robustness increase
Support of new delivery schemes
Operational flexibility

41. Moore‘s law
Cramming more components onto integrated circuits
By Gordon E. Moore
1965

42. Spectral Efficiency
Source: Parrot (http://dvb.org/news_events/White_Papers/)

43. Regional Content: DVB-T2 Support regionalised services and
SFN

44. Current activities in DVB:
Tomorrow‘s specification

45. What‘s in the pipeline
New versions of CI Plus including a
new form factor
New satellite specifications
DVB adoption of new video coding
scheme
UHDTV and 3DTV

46. CI Plus Architecture
CI Plus Host
CI Plus
Module
Tuner
CA
Descram
bler
CI
Scramble
r

48. Do we still need STBs?
In Europe most TVs
come with digital tuners
CI Plus terminates CA
Next version CI Plus
will also terminate
middle-ware

49. UK goes for IDTVs

50. Satellite again:
In 2004 we thought that the job is done.
In the meantime:
RCS2 has been published
We have added a chapter on wideband transponders to facilitate
satellite broadband receivers in Ka band
DVB has provided a new specification for interferer detection
based on spread spectrum technology (Carrier ID)
There will be further extensions to the S2 specification
increasing capacity by 20 – 30 % (DVB-Sx)

51. HEVC: The next Video Coding Standard
History of digital video coding standard
• 1993: MPEG-2 (digital broadcast TV)
• 2003: H.264 (IPTV, HDTV)
• 2013: H.265 (OTT, UHDTV, 3DTV)
Up to now every 10 years the performance has doubled!
DVB will support H.265 for broadcast, IPTV and OTT
DVB is also considering UHD and 3DTV based on
H.265/HEVC

52. Bandwidth requirements with H.264

53. Ultra High Definition Options

54. UHDTV and HEVC in DVB
DVB will define the parameters for a UHDTV Broadcast
Profile based on HEVC
We have already agreed on 4K (UHD1)
There are many other open issues:
Frame rate
Data rate required
How many bits per pixel
Delivery schemes (cable, satellite, terrestrial, IPTV)
New HDMI needed
How to align with BluRay Disc?

55. 3DTV in DVB
Phase 1: Frame compatible approach (done)
Phase 2a: Service compatible (done)
Phase 2b: Frame compatible – Compatible (started)
Phase 3 for 3DTV: „without glasses“ to be discussed in
DVB (future work)

56. Conclusion
Broadcast TV will remain important for the big audience
TVs with digital tuner integrated and CI Plus support may
make STBs obsolet
New satellite specifications are on the horizon to bei used
mostly for contribution and Satellite News Gathering
The next video coding scheme will bring new services like
e.g. UHDTV and improved 3DTV
... and I have not mentioned
Interactive TV
IPTV
Second screen support
Mobile TV

57. Thank You!