Transcript Transition Procedures Jan-Peter Bengtsson, Chapter 6 Rapporteur [email protected] Transition: The process of going from analogue to all-digital broadcasting A D.

Transition Procedures
Jan-Peter Bengtsson,
Chapter 6 Rapporteur
[email protected]
Transition:
The process of going from analogue
to all-digital broadcasting
A
D
Challenges
• Viewers to receive programmes without disruption
• Analogue services will remain for quite a long time
in many countries
• Enough digital services needed already in the
introductory phase to stimulate consumer uptake
• Allowing for different time scales in different
countries or areas, safeguarding equitable access
• Ensure appropriate protection of analogue services
while allowing digital broadcasting to be introduced
in viable conditions
Compatibility during transition
• Constraints imposed by analogue services may
cause limitations on digital stations
• Any incompatibilities within a country is a
national issue
• At the end of the transition period in a given
country all its analogue transmitters will be
switched off
Approaches to transition
• Simulcast
-the same service simultaneously in analogue and
digital form
-additional frequencies needed, not feasible everywhere
-the simulcast period should be rather short
• Analogue switch-off
-analogue services instantaneously replaced by digital
-digital receivers must be available
-may be possible if limited number of analogue viewers
Planning scenario 1
Analogue
services
retained
New digital
services added
A
D
Full protection and compatibility
Easy transition but limited number of digital services
Planning scenario 2
A
Analogue
assignments
converted to
digital
D
D
New digital
services added
Full compatibility with
existing services
Each administration can decide for itself when
to bring digital services into operation
Planning scenario 3
No protection
of analogue in
the planning
process
Analogue
assignments
converted as
appropriate
A
Additional digital
requirements
D
Protection of
neighbour’s analogue
services may be needed
during transition
Co-ordination during the implementation phase required
Planning scenario 4
No account of
analogue services
is taken in the
planning process
Digital
requirements
D
Protection of existing
analogue services
generally needed
during transition
Complex transition process
Suitable where free channels can be made available
Associated Procedures
• Principles and criteria to be applied in coordination of
transitional arrangements
In particular needed for planning scenario 3 and 4
• Conversion of an allotment into assignment(s)
If the digital Plan is based on allotments
• Addition or modification of digital entries in the Plan
For future development and, if needed, temporary channels
• Addition or modification of analogue assignments in
the Plan
E. g. for re-channeling of (low power) analogue services in
order to facilitate the digital introduction
Stepwise transition
• A stepped approach via interim plans agreed at
multilateral level could be used during the transition
phase
• Ultimately the digital Plan, as agreed at the Conference,
is implemented
Analogue
Interim 1
Interim 2
Final Plan