#Digital Caribbean: Dr Peter Siebert, DVB Project Office
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Transcript of #Digital Caribbean: Dr Peter Siebert, DVB Project Office
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Comparison of DVB-T2 with 1st Generation
DTT Solutions
Dr. Peter SiebertDVB Project Office
Geneva/Switzerland
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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:BroadcastersNetwork operatorsManufacturersRegulators
There are more than 100 DVB standards
DVB‘s purpose is to create and to promote video broadcast standards
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DVB: The market leader in digital TV
Screen DigestTM study reported that“DVB is the most widely used transmission standard in the
world“
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Where we are
DVB-S/S2 is the standard for Direct-to-Home worldwide
DVB-C is deployed widely
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DTT Standards World Map
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DTT Beauty Contest
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What is beauty
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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)
CostPrivate Sector receive equipment (STB, iDTV) Broadcaster Capital Expenditure (CAPEX)Broadcaster Operational Expenditure (OPEX)
FunctionalityEWSMobile TVPay TVInteractivityLocal Content
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Efficiency
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Efficiency
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Data rates and C/N for DVB-T2 (6 MHz channel)
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Efficiency: Single Frequency Network (SFN)
Large Guard Intervall: up to 160 km for one SFN cell
32 k FFT: Efficient use of guard intervall
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How to benefit from improved efficieny
Higher data rate per channelMore programsHDTV qualityLess spectrum required (to be used for other services)
Improved robustnessLower cost for building the transmit network (CAPEX)Lower cost for operating the network (OPEX)Easier reception (indoor antennas)
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Cost
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Cost: Private Sector Receive Equipment (STB, iDTV)
Prices of consumer equipment are determined by economy of scale and competitionDVB technology with 70% world wide market share is available at very low pricesTest: Check STB prices on Ali Baba for T2
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Cost: Receive Chip Sets (Sony) Second Generation
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Cost: Receive Chip Sets (Broadcom) Single Chip SoC
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Cost: Receive Chip Sets (ST) Single Chip SoC
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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
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DVB-T2: FFT 32K GI 1/16 (299 ms) 256QAM 3/4 (31.01 Mbps) C/N = 20.3 dB (+ 1.0 dB)DVB-T2: FFT 32K GI 1/16 (299 ms) 256QAM 2/3 (27.57 Mbps) C/N = 18.1 dB (- 1.2 dB)DVB-T2: FFT 32K GI 1/16 (299 ms) 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)
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Cost: Power Savings with DVB-T2
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Cost: Broadcaster Operational Expenditure (OPEX)
Satellite to be used for distribution to transmit towersTransmission is done with DVB-S2Improved 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
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Features
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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 channelUSA and Japan are the only two countries with a broadcast EWS solution
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MPLP Demo at Broadcast Asia, June 2011
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Time 825
Speed: 134.3km/h
Mobile TV: DVB-T2 Reception on German Autobahn
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T2, T2-Lite and NGH
DVB-T2 covers fixed as well as mobile use casesDVB-T2-Lite is basically a subset of T2 to support mobile for terrestrial broadcasters
Ideal solution for a broadcast network to start mobile servicesWill be supported in DVB-T2 chipsetsFEF-TDM structure allows total flexibilty
Broadcast for fixed and mobile in one channelNGH is the ultimate air interface for all types of mobile broadcast
Can be combined with T2Highest efficiency and operational flexibility
T2
T2-Lite
NGH
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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
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Interactivity
DVB supports several interactive solutions:DVB MHP/GEMHbbTVMHEG
Wide range of choices for operators of satellite, cable and terrestrial broadcast networks
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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)
CostPrivate Sector receive equipment (STB, iDTV) Broadcaster Capital Expenditure (CAPEX)Broadcaster Operational Expenditure (OPEX)
FunctionalityEWSMobile TVPay TVInteractivityLocal Content
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Demonstration
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Demo Parameter
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T2/T2-Lite USB Stick Prototype
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Promoting Digital TV Broadcasting Worldwide
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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
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For more information on membership please:
www.digitag.org
Contact DigiTAG Project Office:
Rosemary Smith – [email protected] Nicole Frey – [email protected]
DigiTAG 2.0
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Countries where DVB-T2 is deployed
AustriaBelgiumColombiaCroatiaDenmarkFinlandGhanaHaitiItalyKenyaKyrgyzstanMalawi
NamibiaNew ZealandNigeriaRussiaSaudi ArabiaSeychellesSurinameSwitzerlandThailandUgandaUnited KingdomVietnamZamibia
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DVB’s main achievements
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Second Generation Broadcasting Standards
Driver for 2nd generationAdditional capacity for HD and 3DImproved chip set technologyNew algorithmsNew business models
Features of 2nd generationClose to theoretical limitsCapacity and/or robustness increaseSupport of new delivery schemesOperational flexibility
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Moore‘s law
Cramming more components onto integrated circuitsBy Gordon E. Moore1965
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Spectral Efficiency
Source: Parrot (http://dvb.org/news_events/White_Papers/)
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Regional Content: DVB-T2 Support regionalised services and SFN
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Current activities in DVB:
Tomorrow‘s specification
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What‘s in the pipeline
New versions of CI Plus including a new form factorNew satellite specificationsDVB adoption of new video coding schemeUHDTV and 3DTV
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CI Plus Architecture
CI Plus Host
CI PlusModule
Tuner
CA Descram
bler
CI Scrambl
er
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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
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UK goes for IDTVs
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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)
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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 OTTDVB is also considering UHD and 3DTV based on
H.265/HEVC
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Bandwidth requirements with H.264
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Ultra High Definition Options
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UHDTV and HEVC in DVB
DVB will define the parameters for a UHDTV Broadcast Profile based on HEVCWe have already agreed on 4K (UHD1)There are many other open issues:
Frame rateData rate requiredHow many bits per pixelDelivery schemes (cable, satellite, terrestrial, IPTV)New HDMI needed How to align with BluRay Disc?
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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)
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Conclusion
Broadcast TV will remain important for the big audienceTVs with digital tuner integrated and CI Plus support may make STBs obsoletNew satellite specifications are on the horizon to bei used mostly for contribution and Satellite News GatheringThe next video coding scheme will bring new services like e.g. UHDTV and improved 3DTV... and I have not mentioned
Interactive TVIPTVSecond screen supportMobile TV
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Thank You!