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Standard azimuth analysis(宜蘭市 &羅東鎮 )
• 1. simulation model: Atoll cross wave• 2. site position and height: follow 2G site setting• 3. Antenna tilt: 2G setting but 2 degree down tilt more• 4. frequency& bend: Bend 3, 1800MHz, 15MHz,
normal CP
Simulation setting
Computation zone polygon
宜蘭市 羅東鎮
宜蘭市區
宜蘭縣政府羅東市區
Case1 (0/120/240)
SINR RSRP
Case2 (10/130/250)
SINR RSRP
Case3 (20/140/260)
SINR RSRP
Case4 (30/150/270)
SINR RSRP
Case5 (40/160/280)
SINR RSRP
Case6 (50/170/290)
SINR RSRP
Case7 (60/180/300)
SINR RSRP
Case8 (70/190/310)
SINR RSRP
Case9 (80/200/320)
SINR RSRP
Case10 (90/210/330)
SINR RSRP
Case11 (100/220/340)
SINR RSRP
Case12 (110/230/350)
SINR RSRP
Compare tableazimuth Mean
RSRP(dBm)RSRP>=-100
RSRP>=-80
MeanSINR(dB)
SINR>=0
SINR>=10
0/120/240 -91.64 81.17 11.54 6.5 80.49 30.43
10/130/250 -91.63 81.21 11.4 6.61 79.66 31.32
20/140/260 -91.76 80.46 11.3 6.5 78.72 31.21
30/150/270 -91.96 79.18 11.21 6.31 77.98 30.68
40/160/280 -92.2 77.7 10.99 6.03 77.02 29.97
50/170/290 -92.43 77.11 10.92 5.7 76.42 28.03
60/180/300 -92.62 76.72 11 5.38 76.85 25.03
70/190/310 -92.7 76.8 11.2 5.18 77.43 21.68
80/200/320 -92.63 76.62 11.26 5.23 78.41 21.82
90/210/330 -92.45 77.09 11.28 5.42 78.84 23.13
100/220/340 -92.19 78.55 11.25 5.72 79.12 25.51
110/230/350 -91.98 79.31 11.32 5.98 79.07 27.94
*loading=50% in SINR simulation
RSRP discuss
0/120/2
40
10/130/2
50
20/140/2
60
30/150/2
70
40/160/2
80
50/170/2
90
60/180/3
00
70/190/3
10
80/200/3
20
90/210/3
30
100/220/3
40
110/230/3
50747576777879808182
-92.8-92.6-92.4-92.2-92-91.8-91.6-91.4-91.2-91
Mean RSRP v.s computation zone RSRP>=-100dBm(%)
RSRP>=-100(%) Mean RSRP(dBm)
We compare 2 index in this chart, mean RSRP & percentage of RSRP >=-100dBm in computation zone, we can find the worst case in 50/170/290, 60/180/300, 70/190/310 and 80/200/320.furthermore ,it match the mean RSRP.
RSRP discuss
0/120/2
40
10/130/2
50
20/140/2
60
30/150/2
70
40/160/2
80
50/170/2
90
60/180/3
00
70/190/3
10
80/200/3
20
90/210/3
30
100/220/3
40
110/230/3
5010.6
10.8
11
11.2
11.4
11.6
-92.8-92.6-92.4-92.2-92-91.8-91.6-91.4-91.2-91
Mean RSRP v.s computation zone RSRP>=-80dBm(%)
RSRP>=-80(%) Mean RSRP(dBm)
We compare 2 index in this chart, mean RSRP & percentage of RSRP >=-80dBm in computation zone, we can find the worst case in 40/160/280, 50/170/290, 60/180/300, but it does not match the mean RSRP.
SINR discuss
0/120/2
40
10/130/2
50
20/140/2
60
30/150/2
70
40/160/2
80
50/170/2
90
60/180/3
00
70/190/3
10
80/200/3
20
90/210/3
30
100/220/3
40
110/230/3
507475767778798081
01234567
Mean SINR v.s computation zone SINR>=0dB(%)
SINR>=0(%) Mean SINR(dB)
We compare 2 index in this chart, mean SINR & percentage of SINR >=0dB in computation zone, we can find the worst case in 40/160/280, 50/170/290, 60/180/300 furthermore ,it doesn’t match the mean SINR.
0/120/2
40
10/130/2
50
20/140/2
60
30/150/2
70
40/160/2
80
50/170/2
90
60/180/3
00
70/190/3
10
80/200/3
20
90/210/3
30
100/220/3
40
110/230/3
5005
101520253035
01234567
Mean SINR v.s computation zone SINR>=10dB(%)
SINR>=10(%) Mean SINR(dB)
SINR discuss
We compare 2 index in this chart, mean SINR & percentage of SINR>=10dBm in computation zone, we can find the worst case in , 70/190/310 and 80/200/320. and match the mean SINR.
RSRP vs. SINR
0/120/2
40
10/130/2
50
20/140/2
60
30/150/2
70
40/160/2
80
50/170/2
90
60/180/3
00
70/190/3
10
80/200/3
20
90/210/3
30
100/220/3
40
110/230/3
500
1
2
3
4
5
6
7
-92.8-92.6-92.4-92.2-92-91.8-91.6-91.4-91.2-91
Mean SINR v.s Mean SINR
Mean SINR(dB) Mean RSRP(dBm)
We compare 2 index in this chart, mean RSRP & mean SINR.The worst case happen in 70/190/310 and 80/200/320.It may cause environment around the site. There is not 3D building map in this region. It will cause more mistake in prediction.
• 1. There are some difference between every 10 degrees in azimuth.
Less 2dB in RSRP,1.5dB in SINR.
• 2. There are not consistency best standard azimuth, but there are some azimuth perform not as good as the others.
• 3. Standard Azimuth in a ideal wireless network will perform the best SINR, but there are too many kind of condition have to considerate.
• 4. Good design will increase 1~2dB performance before network tuning, and we can fix and get this performance back by network tuning.
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