Low Power Low Tower SFN networks Interference Analysis · PDF fileLow Power Low Tower SFN networks Interference Analysis V1.0 . ... LTE Broadcast service in the 470-694 MHz band

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Low Power Low Tower SFN networks

Interference Analysis

V1.0

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TABLE OF CONTENT

Part A - Overview .............................................................................................................. 3

A.1 - Background .............................................................................................................. 3

A.2 - Objectives................................................................................................................. 4

A.3 - Planning assumptions ............................................................................................... 5

A.3.1 - Simulation parameters ............................................................................................................. 5

A.3.2 - Time model for signal contribution / interference .................................................................. 6

A.3. 3 - Propagation model used for the simulations .......................................................................... 7

Part B - Overall coverage simulations ................................................................................ 7

B.1 - Geographic area and base stations ............................................................................................. 7

B.2 - Network configurations analyzed ............................................................................................. 23

B.3 - Configuration 1 .......................................................................................................................... 23

B.4 - Configuration 2 .......................................................................................................................... 24

B.4.1 - Simulation results ................................................................................................................... 24

B.4.2 - Analysis of interfered areas in SFN 4 ploygon ........................................................................ 25

B.5 - Configuration 3 .......................................................................................................................... 33

B.6 - Configuration 4 .......................................................................................................................... 33

B.7 - Configuration 7 .......................................................................................................................... 34

Part C - Local optimization in difficult areas ......................................................................35

C.1 - Configuration 5 ........................................................................................................36

C.2 - Configuration 6 ........................................................................................................41

Part D - Overall analysis of the solution studied ...............................................................43

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Part A - Overview This portion will provide an overview of the deployment topology proposed, as well as the coverage objectives within dense areas or rural areas. The overview will also set the performance targets and underlying assumptions on the technology deployed.

A.1 - Background The 470-694MHz has been historically used in Europe for terrestrial broadcast network, delivering public and private broadcast through fixed rooftop reception. Advances in technology and evolution of consumer habits have triggered discussions about the future use of the 470-694MHz. In particular, there is a trend towards mobile consumption for audiovisual content (including audiovisual media services) creating the necessity to consider how broadcasting and mobile services could complement each other in the delivery of audiovisual (both linear and non-linear) content to mobile terminals. The topic was discussed in the High Level Group on the future use of the UHF band led by Pascal Lamy and the Plum Consulting/Farncombe study on broadcast-broadband convergence, both initiatives from the European Commission. From the CEPT side, the ECC Report 224 on ‘Long Term Vision for the UHF broadcasting band’ described, in particular, a number of scenarios corresponding to convergence of broadcast services on the mobile platform. All reports and study groups acknowledged the potential of a converged platform, designed as a Low Power Low Tower network operating in Supplemental DL mode as a nationwide Single Frequency Network (SFN). While technical feasibility of such an approach was recognized, reports stressed that further studies were required in order to address precisely the coverage achieved by such networks at the border between two SFNs. The study below aims at providing a full assessment of the coverage properties of downlink LPLT networks for the delivery of broadcast content, especially at the border of two SFNs. The technical proposal is to reuse existing base stations operated by mobile operators to deliver an LTE Broadcast service in the 470-694 MHz band. Reusing existing sites provides numerous benefits, in particular in order to reduce the cost of deployment of such a network. The service should deliver 2 bps/Hz to mobile devices and fixed rooftop antennas alike, in order to significantly increase the capacity of the mobile platform. The LTE Broadcast service considered corresponds to an evolution of the current LTE eMBMS standard, in particular in order to support longer cyclic prefixes (200 µsec). One of the benefits of adopting LTE as a standard for broadcasting is to leverage the advanced signal processing capabilities of LTE terminals. LTE eMBMS only requires 16dB of SINR to deliver 2bps/Hz in a very challenging mobile environment. Fixed rooftop reception is ensured with much lower SINR requirements. LTE receivers also support features - such as interference cancellation - which improve performance in challenging SNIR environment. Mobile networks deliver high geographical coverage over either 900 and/or 800 MHz networks. Reusing such sites to deliver LTE broadcast at 2bps/Hz is quite straightforward in terms of pure coverage properties. Challenges arise at the border of two such Single Frequency Networks, for example at the border between two countries. In such area, the signal strength of the desired signal is similar, or even sometimes slightly lower, than the signal from the neighboring (and in this case interfering) network. Fixed rooftop antenna typically offer 16dB of back-to-front ratio, meaning that in the case where both signal deliver similar signal strength, adequate pointing of the fixed rooftop antenna ensures that the desired signal is received with around 16dB signal to interference ratio.

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Given that the SINR required for fixed rooftop reception is significantly lower than 16dB and that LTE receiver implement interference cancellation algorithm, the theoretical analysis indicates that fixed rooftop reception should be possible, even at the border between two SFNs.

A.2 - Objectives Early studies submitted to ECC TG6 by several DVB-T research groups questioned the feasibility of fixed rooftop reception at the border between two SFNs. In particular, the BBC proposed a study based on some small regional SFNs in England and the selection of base stations from the 900 MHz network of one UK MNO. The study assumed specific transmission site characteristics and that the LTE receiver would behave in a similar manner than a DVB-T receiver, in particular with regards to signals received outside of cyclic prefix length and interfering signal from adjacent SFNs. Under such assumption, the coverage was demonstrated to be quite consistent inside one SFN, but challenging at SFNs borders. In the following sections, the BBC study is extended in order to: -Reuse the BBC site selection, -adopt realistic LTE receiver characteristics, -determine the coverage of such a network under various receiving modes, -determine whether the coverage of such an SFN can be optimized to match the border of administrative broadcasting regions. The study objectives are then the following: - Select existing sites from UK mobile operators and build different networks (up to 7), each SFN having its own coverage area. - Provide SINR maps on the geographical area that will:

- Take into account an extended cyclic prefix of 200µs. - Take into account different receiving antenna configurations (standard fixed rooftop antenna,

advanced fixed rooftop antenna with excellent front to back ratio, mobile terminal antenna). - Take into account SFN self-interference, and interference from neighboring SFNs.

- Perform a network optimization where required (Power, downtilt, antenna base stations, orientation of the receiving antennas, identification of solutions in areas with strong difficulties). The presentation of results would be, based on maps of the BBC, to show how the non-reception zones will be modified with: - Optimization of the transmission network. - Use of receiving antennas with better performance in areas with strong interference. - In extreme cases, use of two receiving antennas for joint reception at the boundary of two SFNs. - Conversely, identify intra SFN areas where the mobile reception would be possible.

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A.3 - Planning assumptions

A.3.1 - Simulation parameters

The following receiving thresholds have been used for the three different antenna

configurations.

Fixed Fixed advanced Mobile

Receiver Noise (dBm) -95.3 -95.3 -95.3

Min SNIR required (dB) 13 13 16

Transmitting Gain (dBi) 17 17 17

Receiving Gain (dBi) 10 11.2 -10

Receiving Threshold (dBm) -82.3 -82.3 -79.3

Receiving Threshold (dBµV/m) 41 40 63.5

The following parameters have been also considered for the three different antenna

configurations.

Fixed

Antenna

Advanced Fixed

Antenna

Mobile

Antenna

Frequency (MHz) 600 600 600

RF Allocated Bandwidth (MHz) 10 10 10

Target SINR 2bps/Hz (dB) 13 13 16

Rx Ant Gain (dBi) 10 11.2 -10

Antenna diagram ITU-R BT.419 See diagram

below Omni

Noise level at Antenna connector taking into

account

Thermal Noise Floor (-104.3dB)

Rx Noise Figure (6dB), desense and

implementation/cable loss (3dB)

-95.3 -95.3 -95.3

Building Penetration 0 0

Rural: 0

Suburban: 10

Light urban (8m): 10

Urban (15m): 10

Dense urban(30m): 10

Rejection of interference from other SFNs (dB) At least 3dB

X-polar 10dB 10dB

3dB 3dB 10dB

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Advanced fixed receiving antenna pattern:

The receiving antenna height is set to 10m above ground level for fixed reception and 1.5m above

ground level for mobile reception.

A.3.2 - Time model for signal contribution / interference

If we assume that:

- Delta TOA is the propagation delay between the reference SFN signal and another signal

received;

- SR=Signal level received from the reference signal;

- S=Useful contribution to the reference signal;

- I=Interference level;

we have:

for Delta TOA<0µs, I=SR, S=0;

for 0us<=Delta TOA<=200µs, S=SR, I=0;

for 200us<Delta TOA 400µs, S= SR x [1-0.8x((Delta TOA -200)/200)], I = SR x 0.8x((Delta TOA -

200)/200);

for Delta TOA>=400us, I=SR, S=0.

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A.3. 3 - Propagation model used for the simulations

Free space losses computed according to ITU-R P.525.

Diffraction model: Deygout 94.

Subpath attenuation model (to take account of obstacles in the first Fresnel zone): Standard.

Part B - Overall coverage simulations

The section will present the geographic area studied, including the SFN contours, and the assumptions on the positioning of Base Stations. 7 different network configurations of the respective SFN coverages will then be conducted. Each simulation will determine the coverage zone for each SFN and also determine the overall coverage

map, i.e. identify zones with either no reception, reception of 1 SFN, reception of 2 SFNs or reception of 3

SFNs.

B.1 - Geographic area and base stations

The area of the study in England, in the North of London.

The cartographic dataset is made of two main layers:

- a digital terrain model of 50m resolution containing the elevation of the ground on each point.

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- a 50m resolution clutter layer describing the ground occupancy with 11 classes

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Code 0 Rural 0m AGL

Code 1 Suburban 6m AGL

Code 2 Urban 8m 8m AGL



Code 5 Forest 10m AGL

Code 6 Water 0m AGL

Code 8 Wood 6m AGL

Code 9 Building 10m AGL

Code 10 Rail 0m AGL

Code 11 Road 0m AGL

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7 SFNs have been considered with the following contours:

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A selection of O2 (mobile operator) sites has been made to build each SFN. The location of each one with

associated information is listed in the table below.

Callsign Code Longitude

4DMS Latitude

4DMS Altitude

(m) Antenna height AGL

(m) SFN ID

O2 - 261 SP7733186707 0W5141.1 52N2820.8 154 27 SFN 1

O2 - 265 SK9474836593 0W3526.4 52N5505.1 125 32 SFN 1

O2 - 289 SK3372146257 1W2950.4 53N0044.1 181 22.5 SFN 1

O2 - 427 SK8094023327 0W4757.5 52N4803.9 136 56 SFN 1

O2 - 596 SK4806621930 1W1713.6 52N4732.9 80 28.4 SFN 1

O2 - 597 SK3778618054 1W2624.1 52N4530.4 150 31 SFN 1

O2 - 711 SK8892823759 0W4050.6 52N4813.4 153 27 SFN 1

O2 - 940 SP6332288426 1W0402.3 52N2922.9 176 25 SFN 1

O2 - 1078 SK5811435110 1W0808.7 52N5435.8 84 24 SFN 1

O2 - 1428 SK8441907901 0W4506.0 52N3942.9 164 16 SFN 1

O2 - 1432 SK7090038800 0W5641.4 52N5629.7 42 15 SFN 1

O2 - 1771 SK4935037021 1W1556.8 52N5540.8 81 16.5 SFN 1

O2 - 1775 SK4909915670 1W1621.8 52N4409.9 170 16.5 SFN 1

O2 - 2180 SP7167094115 0W5635.3 52N3223.3 134 16.5 SFN 1

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O2 - 2189 SP5514079870 1W1121.2 52N2449.2 140 15 SFN 1

O2 - 2327 TF0347207732 0W2812.3 52N3925.5 44 24 SFN 1

O2 - 2514 SK4239514155 1W2220.0 52N4323.0 159 15 SFN 1

O2 - 2623 SK9999502410 0W3123.1 52N3635.6 96 23.5 SFN 1

O2 - 2681 SK7541001930 0W5310.4 52N3634.4 198 16.5 SFN 1

O2 - 2996 SK3094819438 1W3228.4 52N4616.7 148 19 SFN 1

O2 - 3004 SP6276997864 1W0425.2 52N3428.6 111 29 SFN 1

O2 - 3554 SP9560094330 0W3525.1 52N3217.0 79 16.5 SFN 1

O2 - 3701 SK6252048560 1W0403.5 53N0149.3 89 16.5 SFN 1

O2 - 5201 SK3128036850 1W3204.7 52N5540.2 110 24 SFN 1

O2 - 5202 SK3956836878 1W2440.8 52N5539.1 90 16.5 SFN 1

O2 - 5270 SK6286406304 1W0414.4 52N3901.7 101 14 SFN 1

O2 - 5716 SP5503088490 1W1121.9 52N2928.2 138 16.5 SFN 1

O2 - 6580 SK9946826816 0W3124.5 52N4945.6 90 16.5 SFN 1

O2 - 6601 SK5891013950 1W0739.9 52N4310.7 65 16.5 SFN 1

O2 - 6602 SK4883008378 1W1640.1 52N4014.0 159 15 SFN 1

O2 - 6652 SK2184916195 1W4034.8 52N4433.4 94 16.5 SFN 1

O2 - 6704 SK7223523829 0W5541.9 52N4824.6 169 16.5 SFN 1

O2 - 6705 SK3643902439 1W2742.2 52N3705.3 114 11.85 SFN 1

O2 - 6959 TF0054419383 0W3035.2 52N4544.4 75 16.5 SFN 1

O2 - 6987 SP4710888794 1W1821.8 52N2940.8 135 10.5 SFN 1

O2 - 7095 SK3586229710 1W2802.1 52N5148.1 55 23.5 SFN 1

O2 - 8801 SK8065038780 0W4759.2 52N5624.1 35 16.5 SFN 1

O2 - 8803 SK9363018890 0W3644.6 52N4533.0 122 16.5 SFN 1

O2 - 10168

SK6471022539 1W0224.6 52N4746.3 125 16.5 SFN 1

O2 - 10169

SK6569834246 1W0123.4 52N5404.7 92 37.5 SFN 1

O2 - 11849

SK8892040220 0W4034.8 52N5706.0 40 16.5 SFN 1

O2 - 15717

SK7146445239 0W5606.1 52N5957.8 61 23.5 SFN 1

O2 - 20323

SK4161205869 1W2305.5 52N3855.0 132 16.5 SFN 1

O2 - 20433

SK3075626110 1W3236.4 52N4952.7 63 18 SFN 1

O2 - 20449

SK2452531270 1W3808.0 52N5240.8 68 16.5 SFN 1

O2 - 30767

SK2486022480 1W3752.5 52N4756.3 49 30 SFN 1

O2 - 32960

SP5368898682 1W1227.1 52N3458.6 98 6 SFN 1

O2 - 33955

SK2640045500 1W3623.5 53N0021.1 201 4 SFN 1

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O2 - 34926

SP4310894395 1W2151.3 52N3243.2 139 20.18 SFN 1

O2 - 35778

SP8611598895 0W4344.2 52N3450.5 155 16.5 SFN 1

O2 - 36430

SK4853727470 1W1645.5 52N5032.0 33 23.6 SFN 1

O2 - 37463

SK5414924814 1W1147.2 52N4904.1 84 23 SFN 1

O2 - 39534

SK4790002230 1W1732.8 52N3655.4 136 3.5 SFN 1

O2 - 41656

SK4160625705 1W2256.8 52N4937.0 82 19.29 SFN 1

O2 - 48381

SK5619106989 1W1009.0 52N3926.5 98 2 SFN 1

O2 - 54200

TF1001608827 0W2222.8 52N3956.3 14 32 SFN 1

O2 - 54260

SK5036243533 1W1459.0 52N5911.2 129 22.89 SFN 1

O2 - 54272

SK3028608042 1W3307.5 52N4008.0 129 29 SFN 1

O2 - 710 TF2449022650 0W0913.7 52N4712.2 7 25 SFN 2

O2 - 2431 TF2495830305 0W0838.2 52N5119.4 4 16.5 SFN 2

O2 - 3104 TF0910519890 0W2258.0 52N4554.9 14 28 SFN 2

O2 - 3855 TF1853545338 0W1401.7 52N5931.0 2 16.5 SFN 2

O2 - 3856 TF0780032530 0W2352.6 52N5244.7 52 16.5 SFN 2

O2 - 8196 SK9823242937 0W3213.0 52N5828.1 88 25 SFN 2

O2 - 8198 TF2031234932 0W1240.4 52N5352.9 5 15.3 SFN 2

O2 - 8263 TF3330042450 0W0054.5 52N5745.0 5 24 SFN 2

O2 - 11483

TF0783045850 0W2335.1 52N5955.7 15 20 SFN 2

O2 - 12089

TF4606822203 0E09567 52N4638.3 5 16.5 SFN 2

O2 - 35420

TF1422036179 0W1804.7 52N5438.0 4 13.83 SFN 2

O2 - 45084

TF4032428455 0E05000 52N5006.0 5 2 SFN 2

O2 - 103 TL7512612179 0E32205 51N4649.4 44 30 SFN 3

O2 - 104 TL5618130059 0E16216 51N5647.9 125 37 SFN 3

O2 - 162 TL8701614948 0E42457 51N4805.1 82 23 SFN 3

O2 - 255 TM1227964148 1E06327 52N1402.9 66 68.8 SFN 3

O2 - 256 TM2870536392 1E19502 51N5842.3 21 45 SFN 3

O2 - 257 TL6615863566 0E26026 52N1441.2 84 37.5 SFN 3

O2 - 260 TG2585002663 1E20006 52N3428.0 64 74 SFN 3

O2 - 273 TM4417259621 1E34192 52N1049.1 22 59 SFN 3

O2 - 275 TM5403594350 1E44320 52N2914.8 33 18.5 SFN 3

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O2 - 279 TM2589375816 1E18575 52N2000.4 53 38 SFN 3

O2 - 280 TL8639084740 0E44306 52N2542.4 50 20 SFN 3

O2 - 281 TM1307195739 1E08267 52N3102.8 66 54 SFN 3

O2 - 350 TL7062400569 0E28052 51N4038.9 94 35 SFN 3

O2 - 430 TG1864141274 1E15108 52N5526.3 94 42 SFN 3

O2 - 472 TL9123637649 0E47111 52N0013.9 71 55 SFN 3

O2 - 491 TQ7452893580 0E31157 51N3648.5 11 23 SFN 3

O2 - 738 TL8476907093 0E40335 51N4353.7 34 14.5 SFN 3

O2 - 797 TL6742047287 0E26401 52N0553.3 112 22.7 SFN 3

O2 - 806 TF6295003545 0E24238 52N3617.5 35 31 SFN 3

O2 - 1002 TL7050872279 0E30077 52N1918.1 31 28 SFN 3

O2 - 1073 TL9611369897 0E52336 52N1730.3 61 32 SFN 3

O2 - 1075 TL9142151605 0E47489 52N0744.9 78 24 SFN 3

O2 - 1076 TM0470338119 0E58575 52N0011.8 52 34 SFN 3

O2 - 1087 TL6569909749 0E24047 51N4541.1 51 17.5 SFN 3

O2 - 1412 TQ8040298192 0E36294 51N3911.0 12 16 SFN 3

O2 - 1954 TG5182203877 1E43009 52N3426.2 15 16.5 SFN 3

O2 - 1973 TG2522210933 1E19475 52N3856.2 41 25 SFN 3

O2 - 1999 TL4985014600 0E10261 51N4834.1 71 16.5 SFN 3

O2 - 2195 TL7247582455 0E32103 52N2445.0 30 16.5 SFN 3

O2 - 2289 TM2591549586 1E17555 52N0552.8 44 15 SFN 3

O2 - 2304 TL8020065500 0E38261 52N1527.8 64 16.1 SFN 3

O2 - 2352 TG1472905183 1E10165 52N3605.7 50 24.5 SFN 3

O2 - 2395 TM1161871560 1E06146 52N1803.4 49 16.3 SFN 3

O2 - 2434 TM1345948065 1E06584 52N0521.4 43 16.5 SFN 3

O2 - 2448 TL5515023080 0E15164 51N5303.2 93 16.5 SFN 3

O2 - 2594 TL8043680505 0E39075 52N2332.7 52 22.5 SFN 3

O2 - 2597 TM0055590597 0E57124 52N2833.7 43 20 SFN 3

O2 - 2598 TM0412095690 1E00323 52N3113.5 35 25.3 SFN 3

O2 - 2603 TG0912109974 1E05298 52N3848.4 57 16.5 SFN 3

O2 - 2604 TF6712415529 0E28273 52N4240.4 42 15 SFN 3

O2 - 2662 TM0127561727 0E56482 52N1259.5 54 21 SFN 3

O2 - 2663 TM0887756873 1E03175 52N1012.4 29 16.5 SFN 3

O2 - 2689 TF5448614102 0E17119 52N4207.8 2 16.5 SFN 3

O2 - 2690 TF7573013500 0E36016 52N4125.0 27 16.5 SFN 3

O2 - 2691 TF9439909959 0E52273 52N3907.6 84 15.5 SFN 3

O2 - 2854 TM3583344753 1E26239 52N0301.7 17 27 SFN 3

O2 - 2938 TG1686214093 1E12308 52N4050.6 38 16.5 SFN 3

O2 - 2972 TL4992037370 0E11054 52N0050.6 106 20 SFN 3

O2 - 3114 TF6806040600 0E30036 52N5610.1 30 15 SFN 3

O2 - 3117 TG2810729746 1E23079 52N4859.7 40 16.5 SFN 3

O2 - 3122 TF9225042650 0E51423 52N5647.1 22 16.5 SFN 3

O2 - 3123 TG0808038560 1E05398 52N5413.7 64 16.5 SFN 3

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O2 - 3465 TM2407421008 1E15118 51N5031.9 18 14.5 SFN 3

O2 - 3467 TL8213030590 0E39005 51N5636.7 58 16.5 SFN 3

O2 - 3468 TM0865816719 1E01380 51N4834.8 9 13.5 SFN 3

O2 - 3469 TM0122813129 0E55030 51N4648.5 20 10 SFN 3

O2 - 3470 TQ9473296883 0E48517 51N3811.5 16 16.45 SFN 3

O2 - 3577 TF7957842819 0E40244 52N5708.4 52 24 SFN 3

O2 - 3583 TL7793105006 0E34335 51N4254.2 108 23.5 SFN 3

O2 - 3586 TL5697013730 0E16362 51N4759.0 71 16.5 SFN 3

O2 - 3612 TL8874427766 0E44410 51N5457.4 51 22.5 SFN 3

O2 - 3613 TM0480022786 0E58297 51N5156.0 28 16.5 SFN 3

O2 - 3840 TM1802183738 1E12207 52N2427.9 37 16.5 SFN 3

O2 - 3851 TF7948526650 0E39473 52N4825.8 77 30 SFN 3

O2 - 3852 TF9970834417 0E58031 52N5211.2 106 16.5 SFN 3

O2 - 3853 TF8440518251 0E43528 52N4348.3 72 16.5 SFN 3

O2 - 3854 TF6660822717 0E28130 52N4633.5 48 16.5 SFN 3

O2 - 3868 TG1949826076 1E15198 52N4714.0 34 15.5 SFN 3

O2 - 3876 TL8006091051 0E39081 52N2914.1 38 26.5 SFN 3

O2 - 3880 TM0311675317 0E58545 52N2016.4 55 20 SFN 3

O2 - 3881 TF9301100467 0E50536 52N3402.5 60 27.6 SFN 3

O2 - 3893 TM3531758406 1E26308 52N1023.7 7 16.5 SFN 3

O2 - 3894 TM4536074238 1E35599 52N1839.4 19 20 SFN 3

O2 - 3918 TL7765837149 0E35188 52N0014.0 63 16.5 SFN 3

O2 - 3925 TG3390010200 1E27267 52N3819.3 27 17.5 SFN 3

O2 - 3926 TM3448895513 1E27205 52N3023.9 38 20 SFN 3

O2 - 3958 TM2951354783 1E21169 52N0835.4 33 16.5 SFN 3

O2 - 4010 TL8150197583 0E40372 52N3243.6 62 24.2 SFN 3

O2 - 4082 TM3920066800 1E30162 52N1448.8 38 16.5 SFN 3

O2 - 4085 TM1969092485 1E14096 52N2908.2 47 18 SFN 3

O2 - 5085 TL4738022159 0E08288 51N5241.0 107 28.5 SFN 3

O2 - 6612 TG2435035380 1E20014 52N5207.4 41 16.5 SFN 3

O2 - 6613 TG3409623618 1E28114 52N4532.5 7 16.5 SFN 3

O2 - 7026 TL8640242985 0E43083 52N0312.4 43 16.5 SFN 3

O2 - 7112 TL9949127337 0E54020 51N5430.1 46 18.5 SFN 3

O2 - 7163 TM1543220651 1E07401 51N5032.6 25 16.5 SFN 3

O2 - 7166 TL8025522954 0E37080 51N5232.0 48 16.5 SFN 3

O2 - 7176 TL7219698787 0E32259 52N3333.4 19 15.3 SFN 3

O2 - 7705 TF5071205030 0E13361 52N3718.2 2 16.5 SFN 3

O2 - 9388 TM4744080060 1E38050 52N2144.1 16 16.5 SFN 3

O2 - 9389 TM5232286791 1E42408 52N2513.5 21 13.8 SFN 3

O2 - 9751 TL8776563598 0E45008 52N1417.2 63 16.5 SFN 3

O2 - 9763 TM2047098760 1E15059 52N3229.8 43 25 SFN 3

O2 - 10349

TM2052041613 1E12539 52N0142.9 36 20 SFN 3

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O2 - 15032

TM0686130731 1E00345 51N5610.1 38 17 SFN 3

O2 - 15300

TF9859042380 0E57210 52N5630.1 35 17.5 SFN 3

O2 - 15775

TQ8068189474 0E36277 51N3428.8 57 20.5 SFN 3

O2 - 19638

TG1129024810 1E07593 52N4644.8 50 29 SFN 3

O2 - 19645

TG0267022580 1.00E+149 52N4544.7 51 17 SFN 3

O2 - 19652

TG3072536570 1E25448 52N5236.1 34 26.7 SFN 3

O2 - 19660

TM2993863487 1E22006 52N1316.0 50 24.5 SFN 3

O2 - 19676

TM2470282555 1E18108 52N2340.0 40 19 SFN 3

O2 - 19683

TM3427988062 1E26505 52N2623.4 34 14 SFN 3

O2 - 31645

TM1168734684 1E04556 51N5811.3 36 15 SFN 3

O2 - 32237

TM1166278673 1E06331 52N2153.2 44 16.25 SFN 3

O2 - 33411

TF7885034150 0E39282 52N5229.0 73 14.4 SFN 3

O2 - 35609

TL6625097750 0E27086 52N3306.5 6 3 SFN 3

O2 - 36507

TM4181989439 1E33327 52N2656.1 28 21 SFN 3

O2 - 36893

TQ8629189345 0E41187 51N3418.0 11 16.1 SFN 3

O2 - 37138

TG2611118756 1E20541 52N4307.6 20 30.15 SFN 3

O2 - 37139

TF6143018380 0E23292 52N4418.9 4 18 SFN 3

O2 - 37140

TF8127509780 0E40493 52N3918.2 75 20 SFN 3

O2 - 37152

TM1872563117 1E12096 52N1320.5 50 16.5 SFN 3

O2 - 37159

TL7212590605 0E32069 52N2908.9 10 17 SFN 3

O2 - 38926

TL9617609754 0E50328 51N4505.8 18 14 SFN 3

O2 - 39665

TL7293119397 0E30390 51N5045.3 75 20 SFN 3

O2 - 40644

TF9156026530 0E50312 52N4806.9 80 28.74 SFN 3

ATDI SA


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17/44

O2 - 54116

TM2470282555 1E18108 52N2340.0 40 19 SFN 3

O2 - 54143

TL7077432919 0E29105 51N5805.0 98 25 SFN 3

O2 - 54147

TM3899478247 1E30346 52N2059.0 34 13 SFN 3

O2 - 54149

TL7865544444 0E36247 52N0408.7 69 25 SFN 3

O2 - 54188

TG5139913200 1E43040 52N3928.0 18 49 SFN 3

O2 - 54258

TL5256845544 0E13373 52N0512.4 93 35 SFN 3

O2 - 54271

TL6490122330 0E23447 51N5228.9 89 21 SFN 3

O2-7971-2

NEW 0E26401 52N0553.3 112 22.7 SFN 3

O2 - 145 TL2153540229 0W1339.3 52N0248.1 72 28 SFN 4

O2 - 259 SP9704364302 0W3439.9 52N1604.5 102 28 SFN 4

O2 - 367 TL0610828318 0W2722.1 51N5634.1 161 28 SFN 4

O2 - 482 SP9141634212 0W4005.8 51N5954.2 176 26 SFN 4

O2 - 535 SP9336027297 0W3830.6 51N5609.3 118 27 SFN 4

O2 - 543 TL0810999647 0W2415.1 52N3500.7 13 38 SFN 4

O2 - 602 TL0298856737 0W2934.6 52N1155.8 91 25 SFN 4

O2 - 638 TL0471270567 0W2748.4 52N1922.1 81 23 SFN 4

O2 - 639 SP8196958522 0W4800.0 52N1306.3 106 25 SFN 4

O2 - 640 SP7608064630 0W5305.4 52N1627.0 129 19 SFN 4

O2 - 819 TL3720640931 0.00E+00 52N0257.6 103 26 SFN 4

O2 - 951 SP5706063640 1W0949.5 52N1603.2 148 26 SFN 4

O2 - 974 TF2285010621 0W1057.4 52N4044.4 4 21.6 SFN 4

O2 - 994 TL4994654669 0E11342 52N1010.1 50 32 SFN 4

O2 - 1024 SP9135011714 0W4030.8 51N4746.2 158 23.7 SFN 4

O2 - 1032 TL3335330084 0W0333.4 51N5710.1 147 23 SFN 4

O2 - 1040 TL3011878750 0W0515.6 52N2327.3 36 29 SFN 4

O2 - 1042 TL0324377073 0W2858.8 52N2253.7 73 24 SFN 4

O2 - 1043 SP9593876751 0W3525.4 52N2248.0 80 27 SFN 4

O2 - 1288 SP7727279068 0W5150.6 52N2413.6 159 17 SFN 4

O2 - 1513 SP7052579138 0W5747.5 52N2419.1 177 30 SFN 4

O2 - 2221 SP7367358710 0W5517.0 52N1316.6 105 12 SFN 4

O2 - 2313 TF4640909718 0E09549 52N3954.1 6 16 SFN 4

O2 - 2407 TL1456351050 0W1932.1 52N0843.6 33 15 SFN 4

O2 - 2592 TL5883857917 0E19274 52N1146.2 44 16.15 SFN 4

O2 - 2610 TL1836168095 0W1550.8 52N1752.2 43 16.5 SFN 4

O2 - 2666 TL1060169288 0W2238.9 52N1836.6 69 16.2 SFN 4

O2 - 2686 TF3298003436 0W0208.7 52N3643.3 0 16.5 SFN 4

ATDI SA


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18/44

O2 - 2932 TL1964776115 0W1432.7 52N2210.6 42 16.5 SFN 4

O2 - 3650 TL6146971588 0E22094 52N1905.6 11 16.5 SFN 4

O2 - 3857 TL3007138507 0W0613.7 52N0145.4 86 16.5 SFN 4

O2 - 3920 TL3867086142 0E02276 52N2718.9 8 18.5 SFN 4

O2 - 3921 TL3615575226 0W0001.5 52N2128.0 33 18 SFN 4

O2 - 3922 TL2845484774 0W0635.2 52N2643.6 8 16.5 SFN 4

O2 - 3923 TF1592210454 0W1706.5 52N4044.5 6 16.5 SFN 4

O2 - 3924 TL2713496625 0W0728.8 52N3308.1 6 20.5 SFN 4

O2 - 4429 TL4361662899 0E06137 52N1442.4 12 24 SFN 4

O2 - 5636 SP7774952742 0W5147.1 52N1001.4 126 20 SFN 4

O2 - 5765 SP8615064340 0W4414.4 52N1612.2 105 30 SFN 4

O2 - 6610 SP6774466708 1W0023.7 52N1738.2 102 16.5 SFN 4

O2 - 6618 TL5686787309 0E18330 52N2738.9 1 16.5 SFN 4

O2 - 6793 TL3376352820 0W0239.8 52N0925.3 79 16.5 SFN 4

O2 - 7162 TL4155196831 0E05166 52N3301.9 4 16 SFN 4

O2 - 7701 TL5337579897 0E15159 52N2342.7 27 25.3 SFN 4

O2 - 8006 SP6635055510 1W0145.2 52N1136.3 122 16.5 SFN 4

O2 - 8007 SP6985050460 0W5844.6 52N0851.4 113 16.5 SFN 4

O2 - 8238 TL4132850043 0E03539 52N0748.7 13 16.5 SFN 4

O2 - 8407 SP9927450343 0W3256.9 52N0831.4 54 26.5 SFN 4

O2 - 9353 TL0380788612 0W2816.0 52N2906.6 42 16 SFN 4

O2 - 9681 TL4170056290 0E04228 52N1110.4 23 16.5 SFN 4

O2 - 10158

SP8081768697 0W4852.0 52N1836.2 129 16.5 SFN 4

O2 - 10431

TL1400527305 0W2029.9 51N5555.7 162 18 SFN 4

O2 - 11324

TL3491859600 0W0129.4 52N1303.6 72 16.5 SFN 4

O2 - 11601

TL3448066206 0W0143.0 52N1637.7 20 16.5 SFN 4

O2 - 11671

TF1644000590 0W1651.4 52N3524.9 24 19.03 SFN 4

O2 - 11688

TL0136032140 0W3126.7 51N5841.0 93 16.5 SFN 4

O2 - 12010

SP8291075920 0W4655.0 52N2228.8 120 16.5 SFN 4

O2 - 12063

SP9457343195 0W3711.3 52N0443.0 110 15 SFN 4

O2 - 13129

SP9011156314 0W4053.2 52N1150.2 108 15 SFN 4

O2 - 18602

TL2585026750 0W1010.6 51N5528.5 142 19.29 SFN 4

O2 - 19569

TL4447779343 0E07245 52N2333.5 23 19 SFN 4

ATDI SA


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19/44

O2 - 19585

TL2635652964 0W0909.3 52N0936.2 75 19 SFN 4

O2 - 19601

SP8554550779 0W4458.6 52N0853.7 98 15.2 SFN 4

O2 - 19853

SP8318026520 0W4724.3 51N5549.9 148 16.5 SFN 4

O2 - 33748

TL2054030850 0W1443.3 51N5745.4 88 20 SFN 4

O2 - 34231

SP9589083663 0W3520.8 52N2631.7 78 13.5 SFN 4

O2 - 34546

TL1694892035 0W1635.3 52N3047.8 28 17.5 SFN 4

O2 - 35250

SP8607088580 0W4356.2 52N2916.7 126 28 SFN 4

O2 - 35454

SP9075069750 0W4006.5 52N1904.6 48 3 SFN 4

O2 - 35719

TL0520548820 0W2746.7 52N0738.1 27 16.5 SFN 4

O2 - 36770

TL1872760594 0W1541.0 52N1349.2 19 22.2 SFN 4

O2 - 37157

SP6209460039 1W0526.3 52N1404.7 118 16.57 SFN 4

O2 - 37167

SP8509039040 0W4533.1 52N0234.1 116 16.45 SFN 4

O2 - 37282

TL0399839177 0W2900.8 52N0226.9 121 14.55 SFN 4

O2 - 41191

TL2650670267 0W0838.1 52N1855.9 29 14 SFN 4

O2 - 43480

TL4663046860 0E08276 52N0600.7 35 3 SFN 4

O2 - 54268

TL2047049450 0W1423.4 52N0747.3 53 53 SFN 4

O2 - 54417

TL1582783674 0W1745.2 52N2618.1 31 15.19 SFN 4

O2 - 54418

SP8954078020 0W4102.5 52N2333.0 98 20 SFN 4

O2 - 54445

TL1558337964 0W1854.4 52N0139.4 56 15.3 SFN 4

O2-54251-2

NEW 0E13373 52N0512.4 93 35 SFN 4

O2-54251-3

NEW 0E13373 52N0512.4 93 35 SFN 4

O2-2571 NEW 0E26026 52N1441.2 84 37.5 SFN 4

Add3-4 61 TL6248041540 0E22109 52N0252.7 126 2 SFN 4

O2 - 99 SP5671310548 1W1039.5 51N4724.9 133 52 SFN 5

O2 - 177 SP5226644291 1W1413.2 52N0538.7 182 28 SFN 5

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O2 - 181 SP3026515631 1W3338.4 51N5016.9 170 56 SFN 5

O2 - 182 SP6798632330 1W0035.7 51N5905.4 117 29 SFN 5

O2 - 532 SP4692528119 1W1901.8 51N5657.0 147 36 SFN 5

O2 - 573 SP6530803476 1W0315.7 51N4332.7 103 26 SFN 5

O2 - 767 SP4555639770 1W2008.0 52N0314.5 129 42 SFN 5

O2 - 772 SP3260128501 1W3132.0 51N5713.0 229 33 SFN 5

O2 - 866 SP5446904062 1W1240.3 51N4355.8 75 15 SFN 5

O2 - 1354 SP7199805971 0W5725.1 51N4450.5 74 16.5 SFN 5

O2 - 1988 SP5455616779 1W1228.6 51N5047.4 63 15 SFN 5

O2 - 2383 SP7940811928 0W5053.9 51N4759.7 99 24 SFN 5

O2 - 2577 SU7181097160 0W5741.5 51N4005.4 150 7.5 SFN 5

O2 - 2898 SP2475011518 1W3827.7 51N4804.7 129 24 SFN 5

O2 - 2967 SP7390319040 0W5535.8 51N5152.6 87 16.5 SFN 5

O2 - 2968 SP6490119836 1W0325.9 51N5222.4 63 16.5 SFN 5

O2 - 3551 SU4113097660 1W2418.4 51N4032.7 78 16.5 SFN 5

O2 - 3552 SP4146221838 1W2350.7 51N5335.2 132 25 SFN 5

O2 - 3553 SU2867095320 1W3507.8 51N3919.7 107 15.5 SFN 5

O2 - 3647 SP8549319631 0W4529.4 51N5205.7 121 13 SFN 5

O2 - 5767 SP7959031800 0W5027.9 51N5842.7 144 22.5 SFN 5

O2 - 6674 SU5267396122 1W1418.2 51N3939.4 61 20 SFN 5

O2 - 6678 SU2426090720 1W3858.5 51N3651.5 102 14 SFN 5

O2 - 7180 SP6176013990 1W0613.9 51N4914.4 101 16.5 SFN 5

O2 - 8004 SP5769233075 1W0934.8 51N5933.7 139 19 SFN 5

O2 - 9525 SP6050427432 1W0711.0 51N5630.0 102 25 SFN 5

O2 - 9925 SP5483123299 1W1210.5 51N5418.3 90 16 SFN 5

O2 - 10153

SP6060239709 1W0658.0 52N0307.3 131 16.5 SFN 5

O2 - 12463

SP8240605628 0W4822.7 51N4434.2 153 18 SFN 5

O2 - 33631

SP3892512341 1W2607.2 51N4828.5 110 7 SFN 5

O2 - 37128

SP4955110215 1W1653.5 51N4716.6 72 12 SFN 5

O2 - 39055

SP6731542109 1W0103.9 52N0422.2 155 16.5 SFN 5

O2 - 39661

SP4100005400 1W2421.9 51N4443.3 68 4 SFN 5

O2 - 54259

SP4840902947 1W1756.7 51N4321.7 162 19 SFN 5

O2 - 52 TL2928406710 0W0737.9 51N4437.3 128 65 SFN 6

O2 - 54 TL1519407355 0W1951.6 51N4509.3 110 34 SFN 6

O2 - 74 TL0451021020 0W2853.8 51N5239.0 207 33.5 SFN 6

O2 - 174 TL0136904654 0W3155.2 51N4351.5 163 36 SFN 6

O2 - 366 TL0879404478 0W2528.5 51N4340.8 140 41.45 SFN 6

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O2 - 396 TL0945013890 0W2443.6 51N4844.9 144 24 SFN 6

O2 - 1935 TL5374003700 0E13317 51N4237.7 64 16.5 SFN 6

O2 - 2338 TL4260509374 0E04002 51N4551.9 70 25 SFN 6

O2 - 2575 SU8029491738 0W5024.4 51N3705.7 189 22 SFN 6

O2 - 2583 SU9631098370 0W3625.1 51N4031.3 153 18 SFN 6

O2 - 2934 TL1156621085 0W2244.8 51N5236.2 154 16.2 SFN 6

O2 - 4535 SU9889092820 0W3416.5 51N3730.1 96 16.5 SFN 6

O2 - 5449 TQ5774299002 0E16525 51N4001.8 102 26 SFN 6

O2 - 7136 TL3785020950 0.00E+00 51N5210.7 112 16.5 SFN 6

O2 - 8200 TL1702913608 0W1808.3 51N4830.2 121 18 SFN 6

O2 - 9449 TL2360717978 0W1219.3 51N5046.5 123 24 SFN 6

O2 - 11055

TL3232714347 0W0448.8 51N4841.8 63 12 SFN 6

O2 - 12472

TL2593501150 0W1039.7 51N4140.2 125 18 SFN 6

O2 - 16544

TL3657409707 0W0113.7 51N4608.1 62 20 SFN 6

O2 - 31651

TL4567401816 0E06289 51N4144.5 108 24.5 SFN 6

O2 - 34579

SU9042295207 0W4134.6 51N3852.5 170 18.7 SFN 6

O2 - 37639

TL2203306749 0W1355.8 51N4444.5 100 9.3 SFN 6

O2 - 39067

TQ5185093850 0E11379 51N3720.9 89 22.29 SFN 6

O2 - 41735

TQ0268597515 0W3054.2 51N3959.6 116 21.6 SFN 6

O2 - 46380

SP9888014027 0W3355.4 51N4856.4 198 3 SFN 6

O2 - 35 SP2580184194 1W3713.0 52N2717.0 183 35 SFN 7

O2 - 1131 SP6411076750 1W0328.6 52N2304.7 210 22 SFN 7

O2 - 1682 SP4023085520 1W2428.0 52N2756.8 113 26.5 SFN 7

O2 - 1686 SP4870081201 1W1701.4 52N2534.5 137 18 SFN 7

O2 - 2464 SP3494775052 1W2911.9 52N2219.3 85 16.5 SFN 7

O2 - 2543 SP2320065300 1W3935.5 52N1705.9 115 15 SFN 7

O2 - 2600 SP2902962525 1W3428.7 52N1535.0 64 25 SFN 7

O2 - 3265 SP2478641503 1W3818.0 52N0415.3 89 15 SFN 7

O2 - 3934 SP4136461186 1W2338.6 52N1448.9 85 16.5 SFN 7

O2 - 5579 SP4636670992 1W1910.0 52N2004.8 110 16.5 SFN 7

O2 - 5770 SP2940095110 1W3358.8 52N3309.6 173 21.85 SFN 7

O2 - 6560 SP4269052760 1W2232.6 52N1015.8 123 16.5 SFN 7

O2 - 8365 SP5829070550 1W0840.3 52N1946.4 147 16.5 SFN 7

O2 - 8819 SP3170081175 1W3201.5 52N2538.2 115 20 SFN 7

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22/44

O2 - 12376

SK2338003180 1W3916.4 52N3731.9 100 19 SFN 7

O2 - 15203

SP3532854740 1W2859.4 52N1121.7 133 28 SFN 7

O2 - 20169

SP2454077539 1W3821.5 52N2341.8 111 22 SFN 7

O2 - 20317

SP3476390567 1W2915.8 52N3041.5 106 16.5 SFN 7

O2 - 30851

SP2716655614 1W3609.0 52N1151.7 44 13.8 SFN 7

O2 - 34070

SP2625030250 1W3704.3 51N5810.9 153 2 SFN 7

O2 - 34899

SP5265273270 1W1336.6 52N2116.5 114 14.15 SFN 7

O2 - 36229

SP5575056750 1W1102.7 52N1220.7 146 20 SFN 7

O2 - 36767

SP3338668137 1W3036.9 52N1835.8 97 11.35 SFN 7

The tilt of the base stations has been set to 0° for fixed reception and -1° (down tilt) for mobile reception.

All stations will use the same configuration for radiated power (1995.26W), transmitted frequency

(600MHz) and bandwidth (10MHz).

ATDI SA


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23/44

B.2 - Network configurations analyzed

The following network configurations have been considered for the base stations and the terminals.

Base stations Terminal

Configuration 1 Omni directional antenna in H and

V planes Fixed antenna according to

ITU-BT.419 10m AGL

Configuration 2 Omnidirectional in H plane and

vertical pattern according to ITU-R 1336

Fixed antenna according to ITU-BT.419 10m AGL



Fixed antenna according to ITU-BT.419 10m AGL

oriented towards the center of SFN 4



Advanced fixed antenna from Qualcomm 10m AGL

Configuration 5

Omnidirectional in H plane and vertical pattern

according to ITU-R 1336 - Optimized configuration V1


Configuration 6






Mobile omni antenna 1.5m AGL

The next sections will provide detailed analysis of each configuration except configurations 5 and 6

that are considered in section C.

B.3 - Configuration 1

The following maps have been provided in JPG format:

- "SFN1...7.jpg": Individual SFN coverage with 2 values. 0 for interference and 1 for coverage

without interference.

- "SFN combination.jpg": Combination of all SFN coverage with 2 values. 0 for interference (no

SFN is available without interference) and 1 when at least 1 SFN is covering without

interference.

The analysis of the SFN 4 coverage map is showing that 6.68% of the SFN 4 polygon is covered

without interference with 93.32% of interfered area.

When considering the SFN combination map made for SFN 4 polygon contour that 99.61% of the

area is covered and 0.39% of the area is interfered or not covered.

ATDI SA


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24/44


B.4.1 - Simulation results

The following maps in JPG format have been provided:

- "BS Pattern V 1336 - Rx 419_SFN1...7.jpg": Individual SFN coverage with 2 values. 0 for

interference and 1 for coverage without interference.

- "BS Pattern V 1336 - Rx 419_SFN_Combination.jpg": Combination of all SFN coverage with 2

values. 0 for interference (no SFN is available without interference) and 1 when at least 1 SFN

is covering without interference.

- "BS Pattern V 1336 - Rx 419_SFN4 global coverage map": Combination of all SFN coverage

showing where SFN4 is covering and where other SFNs are covering, plus interference areas.

- "BS Pattern V 1336 - Rx 419_SFN4 overlapping coverage map.jpg": Combination of all SFN

coverage showing where SFN4 is covering alone, where SFN 4 is covering with another SFN,

and where other SFNs are covering, plus interference areas.

- "BS Pattern V 1336 - Rx 419_SFN4 overlapping coverage map_Number of SFN received.jpg":

Combination of all SFN coverage showing how many SFNs are covering each point plus

interference areas.



When considering the combination of all SFNs, the interference areas are reduced to 0.38% of SFN 4

polygon with 99.62% of coverage without interference.

The analysis of the interfered area is made in the next section.

ATDI SA


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25/44

B.4.2 - Analysis of interfered areas in SFN 4 ploygon

Interference areas are located into a basin and is at the edge of SFN 4 & SFN 3 coverage.

The table below lists the main signals received inside the interference plot.

Callsign SFN # Address Status FSR

dBuV/m Pr

dBm ToA us

Delta TOA

Frequency MHz

Polar Distance

m Azimuth

(deg) Tilt (deg)

Rx antenna (m)

O2 - 3650 SFN4 TL6146971588 Wanted 86 -36.78 25.57 0 600 H 7665.51 254.88 -0.16 10

O2 - 257 SFN3 TL6615863566 MFN interferer 85 -37.78 42.11 600 H 12624.58 302.05 -0.55 10

O2 - 7701 SFN4 TL5337579897 SFN 83 -39.78 38.62 13.05 600 H 11577.67 183.96 -0.25 10

O2 - 994 SFN4 TL4994654669 SFN 81 -41.78 48.27 22.7 600 H 14470.75 27.8 -0.33 10

O2 - 4429 SFN4 TL4361662899 SFN 80 -42.78 40.72 15.15 600 H 12208.4 72.6 -0.16 10



O2 - 3921 SFN4 TL3615575226 SFN 71 -51.78 65.23 39.66 600 H 19554.16 119.91 -0.19 10

O2 - 1040 SFN4 TL3011878750 SFN 69 -53.78 88.28 62.71 600 H 26464.17 122.58 -0.21 10

O2 - 819 SFN4 TL3720640931 SFN 68 -54.78 108.34 82.77 600 H 32479.11 41.57 -0.32 10

O2 - 11324 SFN4 TL3491859600 SFN 68 -54.78 71.56 45.99 600 H 21453.79 75.28 -0.28 10

O2 - 19569 SFN4 TL4447779343 SFN 67 -55.78 49.45 23.88 600 H 14825.82 147.11 -0.17 10


O2 - 9681 SFN4 TL4170056290 SFN 65 -57.78 58.75 33.18 600 H 17612 55.99 -0.16 10

O2 - 2592 SFN4 TL5883857917 SFN 64 -58.78 37.83 12.26 600 H 11340.41 347.01 -0.29 10

It has to be noted that only MFN interference occurs. There is no SFN interference.

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ATDI SA


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ATDI SA


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Terrain profiles

From O2 – 3650 (wanted) to the interference area

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From O2 - 257 (strongest MFN interferer) to the interference area

ATDI SA


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From O2 - 1002 (MFN interferer) to the interference area

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So interference is coming from base stations that are located on high points with visibility or very

close to visibility conditions to the interference areas.

As detailed in the following table, interference mainly occurs outside urban clutters:

SFN 4 Combination coverage

Total area 7101.4km² Urban Clutter area

1058.9km² Other Clutters area

6042.5km²

Total area

covered

Urban Clutters covered

Other Clutters covered

Total interfered and non-covered

area

Interfered and

non-covered area

over urban Clutters

Interfered and

non-covered area

over other Clutters

Configuration 2 99.62% 99.86% 99.57% 0.38% 0.14% 0.43%

Possible solutions are proposed in Part C of this document.


In order to have an idea of the TV antennas that will need to be re-oriented in order to receive the

LPLT service in SFN mode. The assumption made is that all antennas of all SFNs are oriented towards

the center of SFN 4 area.

Two maps have been provided in JPG format:

- "BS V pattern 1336 - Rx 419 Oriented_SFN4.jpg": Individual SFN coverage with 2 values. 0 for


- "BS V pattern 1336 - Rx 419 Oriented_SFN_Combination.jpg": Combination of all SFN

coverage with 2 values. 0 for interference (no SFN is available without interference) and 1

when at least 1 SFN is covering without interference.





Compared to Configuration 2 results (0.38% of interference inside SFN 4 polygon of with 99.62% of

coverage without interference), it means that around 10% pf the antennas will have to be re-

oriented.


In order to improve the SFN 4 coverage, the ITU-R BT.419 standard antenna is replaced by a High

Performance antenna manufactured by Qualcomm.

ATDI SA


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34/44


- "BS Pattern V 1336 - Rx HP_SFN1..7.jpg": Individual SFN coverage with 2 values. 0 for


- "BS Pattern V 1336 - Rx HP_SFN_Combination.jpg": Combination of all SFN coverage with 2

values. 0 for interference (no SFN is available without interference) and 1 when at least 1 SFN

is covering without interference.

- "BS Pattern V 1336 - Rx HP_SFN4 global coverage map.jpg": Combination of all SFN coverage

showing where SFN4 is covering and where other SFNs are covering, plus interference areas.

- "BS Pattern V 1336 - Rx HP_SFN4 overlapping coverage map.jpg": Combination of all SFN



- "BS Pattern V 1336 - Rx HP_SFN4 overlapping coverage map_Number of SFN received.jpg":

Combination of all SFN coverage showing how many SFNs are covering each point plus

interference areas.





The interference araes are then very limited and covering a very small amount of Urban clutters:

SFN 4 Combination coverage

Total area 7101.4km² Urban Clutter area

1058.9km² Other Clutters area

6042.5km²

Total area

covered

Urban Clutters covered

Other Clutters covered

Total interfered and non-covered

area

Interfered and non-covered

area over urban

Clutters

Interfered and non-covered

area over other

Clutters

Configuration 4 99.90% 99.89% 99.97% 0.10% 0.11% 0.03%

The use of High Performance antennas is highly improving the interference problem.


Using the same fixed network of base stations, the mobile reception is then analyzed.


- "BS Pattern V 1336 - Rx Mobile_SFN1...7..jpg": Individual SFN coverage with 2 values. 0 for


- "BS Pattern V 1336 - Rx Mobile_SFN combination.jpg ": Combination of all SFN coverage with

2 values. 0 for interference (no SFN is available without interference) and 1 when at least 1

SFN is covering without interference.

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- "BS Pattern V 1336 - Rx Mobile_SFN4 Global coverage map.jpg ": Combination of all SFN

coverage showing where SFN4 is covering and where other SFNs are covering, plus

interference areas.

- "BS Pattern V 1336 - Rx Mobile_SFN4 overlapping coverage map.jpg ": Combination of all SFN



- "BS Pattern V 1336 - Rx Mobile_SFN4 overlapping coverage map_Number of SFN

received.jpg ": Combination of all SFN coverage showing how many SFNs are covering each

point plus interference areas.


without interference with 22.25% of interfered area and 5.57% of non-covered area.

When considering the combination of all SFNs, the interference and non-covered areas are reduced

to 24.45% of SFN 4 polygon with 75.55% of coverage without interference.

The mobile reception would need to be improved but is already achieving a rather good quality of

service at this stage.

Part C - Local optimization in difficult areas When considering the coverage results achieved in Configuration 4, the fixed reception is almost perfect inside SFN4 contour, except in the following 2 areas at the border between SFN 3 and SFN 4:

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In order to improve the situation, 2 optimization configurations have been studied:

Base stations Terminal

Configuration 5




Configuration 6




C.1 - Configuration 5

A first optimization step has been performed from Configuration 4. The network improvements have

been made on the 2 local areas listed above with the following configuration:

- "O2 - 797" station has been sectorized with 2 sectors with 120° aperture in the horizontal

pattern based on ITU-R 1336 standard antenna. One sector pointing to 90° and the other to

210°.

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- "O2 - 257" station has been sectorized with 2 sectors with 180° aperture in the horizontal

pattern based on ITU-R 1336 standard antenna. One sector pointing to 120° belonging to SFN

3 and the other pointing to 300° belonging to SFN 4.

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- "O2 - 54258" station originally belonging to SFN 3 has been sectorized with 3 sectors, one

towards SFN 3 and 2 towards SFN 4 with 120° aperture. Same 120° pattern as above.

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Sector pointing to 180° belonging to SFN 3 and sectors pointing to 60° and 300° belonging to

SFN 4.

- A new station has been added (1995.262W radiated power, 600MHz):

Callsign Longitude

4DMS Latitude

4DMS Altitude

(m) Antenna height AGL

(m) SFN ID

Add3-4 61 0E2210.9 52N0252.7 126 2 SFN 4


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- "BS Pattern V 1336 - Rx HP_SFN1..7.jpg": Individual SFN coverage with 2 values. 0 for


- "BS Pattern V 1336 Optim - Rx HP _SFN_Combination.jpg": Combination of all SFN coverage

with 2 values. 0 for interference (no SFN is available without interference) and 1 when at

least 1 SFN is covering without interference.





Interference on the combination map is mainly around the sectorized antennas due to a front to

back ratio that is not enough to remove interference between adjacent sectors belonging to different

SFNs.

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Compared to Configuration 4, the SFN 4 coverage considered alone is a bit improved, but the

coverage without interference in the when considering the combination of all SFNs is a bit worse

than the original network.

Another improvement is then considered in Configuration 6.

C.2 - Configuration 6

Another optimization step has been conducted from Configuration 5 with the following

modifications:

- Only one sector of original station "O2 - 257" station has been considered with 180° aperture

pointing towards SFN 3 in azimuth 120°.

- Only the 2 sectors of the 3 made from "O2 - 54258" original station are considered. Sector

pointing towards SFN 3 has been removed, keeping 2 sectors pointing towards SFN 4 in

azimuths 60° and 300° with 120° aperture.

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- "BS Pattern V 1336 - Rx HP_SFN1 and 2.jpg": Individual SFN coverage with 2 values. 0 for


- "BBS Pattern V 1336 Optim - Rx HP V2_SFN3+4_Combination.jpg": Combination of SFN 3 and

SFN 4 coverage with 2 values. 0 for interference (no SFN is available without interference)

and 1 when at least 1 SFN is covering without interference.



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With this configuration, SFN 4 single coverage is improved compared to Configuration 5 but more

important, it demonstrates that local optimization is possible by adding sites or reconfiguring sectors

that will solve local interference problems.

Part D - Overall analysis of the solution studied

The study has demonstrated that:

As expected, the SFN coverage with the use of LPLT SFN networks and existing mobile sites is

perfectly received inside each SFN contours with fixed reception.

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With the same configuration of sites used for fixed reception, the results achieved for the

mobile reception are encouraging. The quality of service is lower than the one of the fixed

reception but could be improved by adding more sites

Interference problems are occurring at the border of two different SFNs and are exclusively

coming from other SFNs (MFN interference). With the help of 200µs cyclic prefix, there is no

intra SFN interference.

So, with the use of an advanced fixed antenna, interference levels are highly reduced, but not

completely removed in some local areas. And interference areas are mainly located outside urban

Clutters.

Finally, we have seen that adjusting SFN coverage contours to the administrative contours with the

help of local optimization, as seen in Configuration 6, is necessary. So that adding sites where the

coverage is poor and interfered is a good option. And using sectorized sites with appropriate azimuth

orientation is also a good way to reduce local interference problems.

Documents

Low Power Low Tower SFN networks Interference Analysis · PDF fileLow Power Low Tower SFN networks Interference Analysis V1.0 . ... LTE Broadcast service in the 470-694 MHz band