migration of tv broadcast services to digital
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MIGRATION OF TV BROADCAST SERVICES TO DIGITAL
Input to CTO Digital Migration Switchover Forum
1 22 February 2012
Southern African Digital Broadcasting Association
(SADIBA)
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Overview
• Digital Migration
• The Home Environment
• Implementation planning
• Digital Migration Time-lines
• Content - the key incentive to migrate
• Conclusion
2
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Att 5 dB
CLRWR
A
1 AP
Ref -31 dBm
Center 554 MHz Span 150 MHz15 MHz/
* RBW 100 kHz
* VBW 100 Hz
SWT 15 s
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
1
Marker 1 [T1 ]
-52.68 dBm
586.000000000 MHz
2
Marker 2 [T1 ]
-54.22 dBm
554.000000000 MHz
Date: 18.JUL.2007 16:36:41
• Requirement for greater spectrum efficiency – Spectrum Congested – No growth without digitisation – Increased spectrum efficiency (in
8 MHz)
• Yielding a digital dividend – Huge demand for spectrum – Huge potential for new services – Other users and services
• Consumer message – Better Sound and Pictures – More channels (services) – Enhanced viewer experience
Drive for Migration to Digital Broadcasting
UHF spectrum - Johannesburg, South Africa
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Defining the desired outcomes
• Spell out the desired outcomes – Interrogates broad policy
statements
– Gives focus
– Gives clarity on goals to be achieved
– Assists in setting priorities
– Informs implementation plans
• Universal access
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The Steps in Digital Migration
Dual Illumination
Digital TV (CH24)
Analogue TV (CH21)
2015
Analogue Switch-off
Digital TV (CH24)
time
• Network roll-out (Digital) • Integrated Digital Receiver /
Set Top Box – Specification – Manufacturing – Distribution – Retail – Installation
• Dual illumination • Uptake • Analogue Television Switch-
off • Yield Digital Dividend • After sales support
Digital Switch-on
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The Home Environment
Analogue Television
Digital Terrestrial Television Set-Top Box or Integrated Digital TV required
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The Home Environment
Analogue Television
• At edge of coverage or with poor antenna “some” picture still viewable
• Many TV households today – use poor antennas
– rely on marginal analogue TV reception
Digital Terrestrial Television
• Set-Top Box or Integrated Digital TV required
• Unless sufficient signal is available no service is decoded or displayed – Poor / old antenna may not work – No “marginal” reception
• DTT will be on frequencies not necessarily covered by current antennas
• New antenna and installation may cost more than the STB
• Antenna and installation as important as STB – both to be considered in incentive schemes / subsidy
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Migration is all about the Home Environment
8
AFRICA DIGITAL TV REVOLUTION: - Granny's House, published on-line at You Tube, by ThePremiumComedy, 8 March 2011 (see link at http://www.sadiba.org/pages/home/multimedia.html)
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Implementation planning
Network coverage
Compelling content offering
Compelling receiver solutions
Receiver acquisition
Receiver installation
9
Transmission Standard
Implementation
STB Standard
Integrated digital television receivers
Information and Communication
STB Manufacturing
Installer support
Do-it yourself information
Channel Authorisation
More services and
quality channels
Availability of receive antenna
Ownership incentive scheme
Coverage availability and grade
*General Info 2-3 years before ASO *Detailed info 6 months before ASO per specific area
*Guidelines for the transition from analogue to digital broadcasting, ITU, 2010
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How long has migration taken in other markets
10
Phil Laven, DVB Project office, DVB World 2011, Nice, France, 7 March 2011
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Content is King
• The viewer has been promised more channels
• Great content = the biggest incentive to migrate
• See report and video on SOWETO trial (www.sadiba.org)
• If what is available on DTT is neither compelling nor attractive migration will stall – Slow / no uptake of STB – Self-funding gap significant – Retail might be stuck with STB not
moving – Could result in manufacturing stalling – Risk of negative consumer sentiment
towards migration and digitisation
• STB (even if given away for free) unlikely to move from retail, get installed and used if no compelling content available
11
SOWETO DVB-T2 trial update March 2011, Video available at www.sadiba.org
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Regulatory and Content
• Regulatory – Content regulation
• Channel Authorisation required
• Must be simple and quick process
– Networks and Multiplexes • Paradigm shift required
• Sharing capacity
• Content – Filling the capacity with quality
content
– SD / HD
– Compelling
12
No compelling content = no or slow uptake
Number of channels on DVB-T2 trial in SOWETO = 21
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Aspects of DVB-T/T2 planning configurations to consider (GE-06)
Aspect Element (GE-06) Additional DVB-T2 Elements
Reception Mode
Fixed Portable outdoor Portable indoor
Mobile
Consider multiple PLP and different coverage modes per PLP
Coverage Quality (in terms of % of locations covered)
70% 95% 99%
Consider multiple PLP and possible varying coverage quality per PLP
Network structure MFN (single Transmitter)
SFN Dense SFN
MFN (single Transmitter) SFN
Dense SFN New SFN dimensions possible
DVB-T/ T2 system variant From QPSK ½ FEC to 64 QAM 7/8 FEC From QPSK 1/2FEC to 256 QAM 5/6 FEC,
Pilot Patterns, carrier mode
Frequency Band Band III Band IV Band V
Band III Band IV Band V
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Typical National Rollout • Trial
– Engineering skills – Impact on the home – Trial participants –closed group of representative citizens
• Plan and prioritise the rollout • Install transmission infrastructure and prepare for switch-on • Have a coordinated roll-out and switch-on
– National switch-on requires national DTT network on-air – Regional switch-on requires stepped approach and detailed
communication
• Dual illumination – Retail, consumer education, receiver and platform marketing
• Switch-off – National – By region – By site
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Conclusion • Migration is about the consumer and the home environment • The receive antenna is as important as the STB (Antenna
subsidy?) • All implementation factors must be considered and in place
to ensure success • Implementation planning is critical • Migration has typically taken more that 6 years • In markets where the majority of the population relies on
terrestrial reception migration has taken more than 10 years • Retail and installer capacity is likely to be a key bottleneck /
opportunity to create jobs • Content is key to consumer uptake of DTT and successful
migration. It is essential that compelling content drives uptake
• No compelling content = No or slow migration
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Migration is about the home
16
AFRICA DIGITAL TV REVOLUTION: Is the Doctor Home, published on-line at You Tube, by ThePremiumComedy, 8 March 2011 (see link at http://www.sadiba.org/pages/home/multimedia.html)