1 digital dividend and plan geneva 06 communications regulatory authority of the republic of...
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Digital Dividend and Plan Geneva 06
Communications Regulatory Authority of the Republic of Lithuania
Director of Radiocommunications department dr. Mindaugas Žilinskas
Warsaw, 7-9 May 2012
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Plan Geneva 06 and Digital Dividend
1. Current situation of DTT in Lithuania.
2. Digital Dividend and related problems.
a) Impact of DD1 on DVB-T networks.
b) TV vs ARNS compatibility problems.
c) Impact of ARNS on LTE.3. Decisions of WRC-12 and a possible impact
on DTT. Coordination problems of new stations or allotments.
4. Conclusions
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Start in 2002 regular:2004 MPEG-2 2006 06 01MPEG-4DVB-T,
64-QAM
CR=3/4
LP=90%
Coverage:
territory:86,9%
population:95%
32 stations
Current situation. 4 DVB-T networks: LRTC network 1 (2011-11-16)
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27 stations
64-QAM
CR=3/4
LP=90%
Coverage:
territory:86,6%
population:95%
LRTC network 2 (2011-11-16)
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Network deployed by the company Toptronas
24 stations
64-QAM
CR=3/4
LP=90%
Coverage:
territory:82,1%
population:92%
TEO LT network 1 (2011-11-16)
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6 stations
64-QAM
CR=3/4
LP=90%
Coverage:
territory:58,8%
population:75%
Calculation method
TEO LT network 2 (2011-11-16)
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Distribution of DVB-T stream in channels 64 QAM,
CR=3/4, GI=1/4
Common stream 22,4 Mbps
85% stream – TV progr.
10 progr. 2 Mbps/progr.
Channel 57 Channel 60
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Measurements
A view inside the car
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LTV programme, fixed reception receivers Kaon S660HD, Salteka
marking
View good crumbled No view
Number of settlements
447 16 12 settlements-no less than 500 inhabitants.
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Reception of LTV programme
It was measured in 475 settlements (which comprise no less than 500 inhabitants), in 456 cases reception was good;
In 19 cases there was no reception;
These measurements covered population of 2,64 m , so 99,3% of them can receive the programmes transmitted
over national LRTC network 1.
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Comparison of measured and calculated field strength values
1 0
5 5 4
13 13
2023
36 35
47
60
51
44
73
62
51
41
23
10 118
5 4
0
10
20
30
40
50
60
70
80-1
9,3
-17,
8
-16,
2
-14,
6
-13,
1
-11,
5
-9,9
-8,3
-6,8
-5,2
-3,6
-2,1
-0,5 1,1
2,7
4,2
5,8
7,4
8,9
10,5
12,1
13,7
15,2
16,8
18,4
nu
meb
er o
f mea
sure
men
ts, n
o
ratio of field strength measured values with calculated values, in dB
LRTC network 1
Method of calculations CCIR –Predict.
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Before WRC-12: four DVB-T networks in operation, beauty contest for two UHF networks and five analogue networks until 29 October 2012
LRTC 1LRTC 2TEO 1TEO 2
NAT 5NAT 6LRT
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Digital dividend 1 (DD1) 61-69 TV channels (790-862 MHz)
-Decision (2010/267/EU ) of the European Commission on harmonized technical conditions on use in the 790–862 MHz frequency band for terrestrial system capable of providing electronic communication service in Europe.
-Radio spectrum policy programme approved by the European Parliament on 16 February 2012.
From 1 January 2013 – the 800 MHz band, article 6 paragraph 3.
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Channel arrangement for ECN in the 790-862 MHz frequency band
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Digital dividend I (TV channels 61-69)
63
65
63
64
6562
6164
65
61
34 55 57
33 45
23 27
26 38
22 30
29 37 56
58
37 54
23 27
42 56
36
53
5247
403025
31 43 48
50 57
28 33 35
45 52
21 28 39
44 59
25 32 36
42 49
22 24 41
51
29 38 46
50 60
63
65
63
64
65
62
6164
65
61 26
16
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69
- TV KANALAI - RSBN ir kitos sistemos
Requirements for protection of Requirements for protection of registered stations of other primary registered stations of other primary serviceservicess (ARNS) up to (ARNS) up to 600 km600 km from TV from TV and and up to up to 400 km 400 km from MS stationsfrom MS stations
Up to Up to 2004 2004 ((RRC04),RRC04), there were no there were no requirements for coordination of requirements for coordination of ARNS ARNS stationsstations..
DVB-T, Digital dividend and stations DVB-T, Digital dividend and stations of ARNS of ARNS
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Coordination in the 791-821 MHz & 832-862 MHz bands:
- Between base stations of MS (LTE vs. LTE)
– Stations of MS and ARNS (LTE vs. ARNS)
• Agreement came into force on 1 January 2013.
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ARNS at the western border of Lithuania (registered in MIFR)
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ARNS operating under umbrella of DVB-T stations in TV channels 67 and 69 at the western border of Lithuania
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Impact of LTE network (model) BS on stations of ARNS. Cells R=8 km, P=55 dBm
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Method of calculations
The field strength is calculated by power sum method:
Esum — cumulative field strength;
Ei — the field strength produced by i-base stations;
n — number of base stations.
ITU – R. P Recommendations 1546, 525.
n
i
Esum
iE )10/(10lg10
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The dependence of cumulative field strength value of LTE network from the number of BS
The frequency of all BS: ν = 826 MHz
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Real network of MS (GSM) in the area of Kaliningrad district
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Impact of the “real network” LTE BS on ARNS , network up to 30 km.
R = 30 km
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Impact of the “real network” LTE BS on ARNS , network up to 50 km.
R = 50 km
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Impact of the “real network” LTE BS on ARNS , network up to 70 km.
R = 70 km
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The field strength of a theoretical model of LTE network and a real one with a different radius
Field strength of a
theoretical model of
LTE network
Field strength of a real LTE network with a
different radius
Radius of the network 30 km 50 km 70 km
The number of LTE BS 41 169 400 703
Chernyahovsk RSBN31dB(µV/m) 29 dB(µV/m) 30 dB(µV/m) 30 dB(µV/m)
Donskoye RSBN31 dB(µV/m) 32 dB(µV/m) 35 dB(µV/m) 37 dB(µV/m)
Khabrovo RSBN32,5 dB(µV/m) 34 dB(µV/m) 34 dB(µV/m) 35 dB(µV/m)
Nivenskoye RSBN24 dB(µV/m) 21 dB(µV/m) 22 dB(µV/m) 22 dB(µV/m)
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Impact of terminal equipment on receivers of ARNS on aircrafts
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Impact of terminal equipment on a receiver of ARNS on aircraft. Initial conditions:
Height of LTE terminal station’s h1, m 1,5
The isotropic effective radiated power of
LTE terminal station’s EIRP, dBm23
The density of LTE terminal stations ρ,
numb./km2
0,17 (rural areas);
3 (urban)
The height of receivers of ARNS in an
aircraft h, km10
The allowable value of interference field
strength for the receiver of aircraft Eaps 72 dB(µV/m)
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Impact of terminal equipment on a receiver of ARNS on aircraft. E ≤ 72 dBμV/m
2500 3500 4500 5500 6500 7500 8500 9500 1050011500125001350055
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
E, d
B(
V/m
)
n
1 2 3
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Coordination criteria: on the border line and at the location of ARNS• Restrictions of electromagnetic field strength on the
border line depending on geographical longitude (antenna high 10m):– till 21º 07′ (53dBµV/m@5MHz)
– from 21º 07′ till 22º 34′ (57dBµV/m@5MHz or 58dBµV/m@5MHz)
– from 22º 34′ (58dBµV/m@5MHz)
• Buffer zones:– e.i.r.p
• 55dBm/5MHz (till 60km); 55dBm/5MHz or 58dBm/5MHz (60-100km distance)
– Effective antenna high (heff)• heff = 60m (iki 60km)
– BS density
• 1BS/100km2; 10BS/100km2; 100BS/100km2 or 50BS/100km2
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Results : Restrictions on the LTE
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34
35
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Impact of ARNS on LTE RECOMMENDATION ITU-R M.1830 (1)
Type of station
CharacteristicsRSBN RLS 2 (Type 2) RLS 1 (Type 1) RLS 1 (Type 2)
Application “Air-to-Ground” Secondary radars –Type 2
Primary radars –Type 1
Primary radars –Type 2
Transmitter characteristics
Station name Aircraft transmitter Ground radar transmitter Ground radar transmitter Ground radar transmitter
Place of station Aircraft Airfields Airfields Airfields
Maximum effective radiated pulse power (e.r.p.) (dBW)
30.5 69.5 82 82
Pulse power (dBW) 27 40 52.5 52.5
Mean power (dBW) 0.5 19.5 19.5 19.5
Off-duty ratio 447 112 1 995 1 995
Pulse repetition cycle (ms) 2.3 1.8 1.8 1.8
Pulse length (μs) 5.1 16 0.9-2 0.9-2
Necessary emission bandwidth (MHz)
3/0.7 3 6 3
Operating frequencies (MHz) 792, 796, 800, 804, 808 835, 836, 837.5 833, 835, 836, 858 844, 847, 853, 859
Antenna height (m) 0-10 000 10 10 10
Maximum antenna gain (dBi) 3.5 29.5 29.5 29.5
Antenna pattern ND 3 dB beamwidth:vert. pl. = 45°hor. pl. = 3-5°
3 dB beamwidth:vert. pl. = 45°hor. pl. = 4°
3 dB beamwidth:vert. pl. = 45°hor. pl. = 4°
Direction of antenna main beam Lower hemisphere Azimuth: 0-360°Revolution speed10 rev/min
Azimuth: 0-360°Revolution speed6/10 rev/min
Azimuth: 0-360°Revolution speed6/10 rev/min
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ECC Report 174. COMPATIBILITY BETWEEN THE MOBILE SERVICE IN THE BAND 2500-2690 MHz AND THE RADIODETERMINATION SERVICE IN THE BAND 2700-2900 MHz
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6.2 Impact of radar on the LTE base station (ECC Report 174)
Required additional isolation needed for interference from radar type 2 to LTE BS
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…VoIP is very sensitive to packet loss, delay …100 ms, delays greater than 200 ms are noticeable to the end users. …it is impossible for LTE to provide a wide range of services with an acceptable QoS
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Possible impact of ARNS RLS type 2 on LTE BSITU-R.P. 1546-3, T=10%, L=50%. Gr=18 dB, h=60m, C/I=-6dB,
Ps1=-98 dBm; Ps2=-115 dBm, (E1=21 dBuV/m, E2=4 dBuV/m) for radar mean power: Ptr=19.5 dBW,
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Possible impact of ARNS RLS type 2 on LTE BS ITU-R.P. 1546-3, T=10%, L=50%, Gr=18 dB, h=60m, C1/I=-6dB,C2 /I =0, Ps=-98 dBm; (E1=21 dBuV/m, E2=27 dBuV/m)
for radar pulse power Ptr=52.5 dBW,
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How many Digital dividends should we take into account?
• Digital dividend 1 (DD1)
61-69 channels (790-862 MHz)
• Digital dividend 2 (DD2)
49-60 channels (694-790 MHz)
. Digital dividend 3 (DD3)?
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WRC-2012 results
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Impact of digital dividends
• After DD1, 8 networks left from 9 given according to Geneva 06 Plan:– 4 in use– 2 beauty tenders announced at the end of 2011 – 1 network is assigned for national radio and television (LRT)– 1network in VHF frequency band (to be licensed)
• After DD2, 5½ networks:– <2 in use– 1.5 for tender– Panevėžys, Biržai, Utena, Alytus and Kaunas allotments left – LRT full network – VHF full network.
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The consequencies of the DD2 for 2 new networks
NAT 5
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The consequencies of the DD2 for LRTC network 1
47
The consequencies of the DD2 for LRTC network 2
48
The consequencies of the DD2 for TEO LT network 1
49
The consequencies of the DD2 for TEO LT network 2
50
Remaining channels for LRTC
LRTC 2
LRTC 1
51
Remaining channels for TEO LT
TEO 2
TEO 1
52
Disappearing channels and allotments after DD2
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50 5759
495150 60
52
52
50 5759
495150 60
52
52
50 5759
495150 60
52
52
50 5759
495150 60
52
52
50 5759
495150 60
52
52
50 5759
495150 60
52
52
50 5759
495150 60
52
52
50 5759
495150 60
52
55 57
56 58
5456
53
55 57
56 58
5456
53
55 57
56 58
5456
53
55 57
56 58
5456
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Two assignments in Vilnius on TV channels: 60, 53
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The consequencies of the DD for HNG (using the 694-862 MHz band for mobile)
Allotment/network A B C D E F G
Remaining channels int he
particular allotment areas
VAS 38 58 49 32 33 68 X 3
SOP 42 40 49 32 33 68 25 5
GYO 42 35 46 51 22 61 25 5
VES 57 35 46 51 22 61 64 3
KOM 26 29 59 X 41 63 64 3
FEJ 30 29 59 43 40 63 X 4
ZALSOM 24 55 54 31 41 65 60 3
PES 38 55 34 24 41 62 58 4
NOG 38 55 46 24 36 62 X 4
HEV 56 39 44 53 36 66 69 3
C 56 39 34 53 36 66 58 3
SZ 56 30 59 53 36 66 64 2
AGG 45 31 28 35 48 63 68 5
TOK 60 31 43 35 26 63 68 4
SZA 58 38 24 34 41 67 52 4
HAJ 51 46 29 49 32 62 40 4
BEK 38 22 37 54 23 65 41 5
CSO 31 22 26 57 23 65 60 4
KISCSA 27 45 28 25 42 68 33 6
BARTOL 52 37 49 47 50 67 32 3
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The consequencies of the DD for HNG (using the 694-862 MHz band for mobile)
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Problems with the coordination of new DVB-T stations or allotments.
• 1. Dividend channels did not spread equally over countries.
• Small countries feel this disbalance stronger. Tension among the countries are already programmed.
• 2. Procedures of GE06 are very soft.
• Trigger value Y for coordination.
• 3. Different impact of ARNS on LTE and DVB-T.
• 4. New conference?
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Conclusions
• Up to mid-2022, DVB-T is licensed in the band 470-790 MHz.
• For preparation of MS in 700 MHz band: • Need to investigate impact of ARNS on LTE.• Need to revise coordination procedures and
criteria of GE06 agreement.• Arrange regional planning conference within
CEPT.
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Thank you