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Planning of digital terrestrial broadcasting.
Results of the Regional Radiocommunication Conference
RRC-06
Evghenii Sestacov
Deputy Director General of the NRFC,
tel. +373 22 727278, fax +373 22 733941,
Рµ-mail: esestacov@cnfr.md
A little history
In 1961 in Stockholm took place the Regional
Radiocommunication Conference which approved the Regional
Agreement for the European Broadcasting Area concerning the
use of frequencies by the broadcasting service in the VHF and
UHF Bands (ST61 Agreement).
In
1989
in
Geneva
took
place
the
Regional
Radiocommunication Conference which approved the regional
Agreement for the African Broadcasting Area concerning the
use of frequencies by the broadcasting service in the VHF and
UHF Bands and neighboring countries (GE89 Agreement).
These Agreements contain relevant Plans of analogue radio
and TV stations.
Because of the rapid development of digital technologies,
inclusive in the digital broadcasting, in 2002 the ITU
Council approved Resolutions 1180 and 1185 regarding
the convening of Regional Conference for the planning of
digital terrestrial broadcasting in frequency bands 174-230
MHz and 470-862 MHz (RRC-06) in planning area
covering European, African and neighboring countries.
Thus, the RRC-06 planning area includes 118 countries in
Europe, Africa, Middle East and Middle Asia.
RRC-06 Planning area
The first session of the Conference (RRC-04) took place
in May 2004 and laid the foundation for research in intersessional period, elaboration and submission of
Administrations requirements for digital broadcasting to
the ITU.
The second session of the Conference (RRC-06) took
place in May-June 2006.
NRFC elaborated the draft of digital broadcasting plan
(digital television DVB-T and digital audio broadcasting TDAB) for the Republic of Moldova on the basis of the
following planning principles:
пЃ± planning based on synchronous single-frequency
networks,
пЃ± mobile reception (RPC2),
пЃ± 7 MHz raster for each DVB-T channel in the 174-230
MHz band,
пЃ± without taking into account other primary services,
пЃ± without taking into account analogue stations.
The above principles were almost the same as approved at
RRC-06.
At the same time:
Transition to the Digital Terrestrial Broadcasting leads to a
more efficient usage of the radiofrequency spectrum and
offers more advantages in comparison with the analogue
terrestrial broadcasting:
 In one digital TV channel can be transmitted 8 TV
programs of SD quality (standard definition);
 the immunity of digital TV signals against interferences
rises up;
 creation of interactive TV systems whereby viewers have
the possibility to influence the transmitted program (for ex:
video on demand);
 the possibility to transmit with the digital TV signal
additional data;
 the possibility to set up the language and subtitles.
RRC-06
Regional Radiocommunication Conference (RRC-06) took
place in Geneva, in the period 15 May – 16 June 2006.
In the work of RRC-06 participated more than 1010
representatives
of
109
Telecommunications
Administrations,
37
representatives
of
regional
organizations and others.
Digital sound broadcasting frequency blocks distribution
on the territory of RM (216-230 MHz band)
Block 12B - 224.880-226.416 MHz
Block 11C - 217.872-219.408 MHz
Block 12C - 226.592-228.128 MHz
Block 11B - 219.584-221.120 MHz
Block 12A - 223.168-224.704 MHz
Block 11A - 216.160-217.696 MHz
Block 12B - 224.880-226.416 MHz
Block 11C - 217.872-219.408 MHz
Block 12D - 228.304-229.840 MHz
Block 11A - 216.160-217.696 MHz
TV channels distribution on the territory of RM for
national division areas (174-216 MHz and 470-790 MHz)
Edinet - TV channels: 5, 26, 30, 37, 39, 56
Minrestii Noi - TV channels: 8, 21, 22, 24, 29, 33
Trifesti - TV channels : 10, 28, 36, 44, 46, 48
Straseni
- TV channels : 6, 26, 30, 31, 42, 56
Causeni
- TV channels : 9, 21, 29, 49, 50, 57
Cahul
- TV channels : 7, 28, 36, 44, 48, 53
TV channels distribution on the territory of RM for
regional division areas (470-862 MHz)
Edinet
– TV channels : 23, 66
Mindresti – TV channels : 47, 68
Balti
– TV channels : 40, 49
Floresti
– TV channels : 41, 50, 65
Bender
– TV channels : 59, 63
Trifesti
– TV channels : 27, 67
Ungheni
– TV channels : 51, 69
Chisinau
– TV channels : 23, 38, 61
Cimislia
– TV channels : 32, 66
Causeni
– TV channels : 58, 65
Comrat
– TV channels : 62, 64
Cahul
– TV channels : 47, 67
Conference Totals:
1. RRC-06 approved the GE-06 Agreement,
which contains regulating provisions, analog and digital
broadcasting Plans in the frequency bands 174-230 MHz
and 470-862 MHz.
2. Digital Plan of the Republic of Moldova
contains:
a) TV channels for 7 DVB-T national
coverages in
the frequency band 470-862 РњHz
(UHF)
b) Additional TV channels (with respect to
a)) for
coverage of Chisinau, Balti and Floresti
areas.
Agreement entered into force on 17 June 2007.
Frequency assignments from analogue Plan are
protected only during the transition period, which is specified
up to June 17, 2015.
Final Acts of the Regional Radiocommunication
Conference for planning of the digital terrestrial broadcasting
service in parts of Regions 1 and 3, in the frequency bands
174-230 MHz and 470-862 MHz (RRC-06) were ratified by
the Law of the Republic of Moldova with No. 69-XVI dated
27.03.2008 (Official Monitor No. 74-75/247 dated
11.04.2008).
Final Acts of the Regional Radiocommunication
Conference for the Revision of the ST61 Agreement (RRC06-Rev. ST61) were ratified by the Law of the Republic of
Moldova with No. 68-XVI dated 27.03.2008 (Official Monitor
No. 74-75/245 dated 11.04.2008).
In 2010 NRFC had analyzed the current state of
the channels of analogue terrestrial television stations and
their impact on digital channel allocations of the Republic of
Moldova from the Geneva-06 Plan in the band 470-790 MHz.
Proposals were developed regarding technical parameters of
digital stations for national and regional division allocations
for transition period to digital terrestrial television.
From the analysis the following conclusions can be
made that for optimization of radio frequency spectrum
usage, in the transition period :
1. In frequency band 470-790 MHz (21-60 TV
channels), from 30 planned digital allocations (large areas) of
RM, without switching off the analogue TV stations, 15
allocations, which form 2.5 national coverages, can be used
with antenna diagram sector restrictions.
Sector restrictions for digital stations antennas are
imposed to assure analogue TV stations protection. After the
transition period, those sector restrictions will be removed.
The usage of the rest 15 allocations in the
transition period can be made only in case of switching off of
analogue TV stations not only in Moldova but also in
neighboring countries.
2. In the band 470-790 MHz (21-60 TV channels),
from 14 planned digital allocations (regional areas) of RM, in
the transition period, can be used only 8 allocations. For 6
allocations, the realization is possible only in case of
switching off of analogue TV stations.
To create (in transition period) the first national coverage (A)
can be used TV channels with technical parameters, according to
Table 1 :
To create (in transition period) the second national
coverage (B) can be used TV channels with technical parameters,
according to Table 2:
Digital dividend
Digital broadcasting allows a more efficient usage of radio
frequency spectrum, in comparison with analogue TV, as
far as via 1 digital channel can be transmitted 8 and more
TV programs, while in 1 analogue channel – only 1 TV
program. Gain from this so-called "digital dividend" (DD)
must be carefully analyzed and used in the most optimal
way.
Digital dividend
NRFC analyzed the mutual influence of two services digital terrestrial television and mobile terrestrial, in the
same frequency band, planned by RRC-06 for the digital
TV (790-862 MHz).
The results of this analysis are shown in the next slides.
LTE vs. DVB-T
The interference zone for the terminal
mobile receivers LTE (regime FDD) in RM
from the DVB-T transmitters of Ukraine
(TVC 61 - 64)
The interference zone for the DVB-T
receivers (fixed reception (red) and mobile
(blue)) on TV channels 61-64 in Ukraine from
the transmitters of LTE Base stations of RM
LTE vs. DVB-T (cont.)
The interference zone for the Base stations LTE (regime FDD) in RM from the
DVB-T transmitters of Ukraine (TVC 66 - 69)
Thank you for your attention!
Questions?
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