Slide 1For internal use
3G RANOP 1
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
3G RAN Optimization
RF optimisation
Signalling Flows
RRC Establishment
RAB Establishment
Inter-System Working and Optimisation
3G<>2G Cell reselection
3G ISHO service analysis (AMR and PS)
GSM ISHO Optimisation
HSDPA Optimisation
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
Objectives
After this module the delegate shall be able to perform:-
RF Verification and Optimisation actions
Understand how new Sites should be integrated to the network
Neighbour Plan Verification
For internal use
For internal use
RF Optimisation - Introduction
Is there a need for Model Tuning
(Is there a case for Automatic Optimisation Tools (e.g. Optimal Planner))
Make Neighbour list Verification
Dominance
Optimise SHO area
Eliminate Pilot Pollution
For internal use
Initial Optimization – basic information
Initial RF optimisation is typically done when network is build and integrated but there is no commercial traffic.
RF verification and optimisation are also needed when new sites are integrated to the network
RF Optimization is required in the areas having poor or weak dominance
Physical change of antenna tilt, azimuth, type and height based on scanner data
Optimal planner could be used for this (Optional)
Neighbour list (scrambling code) verification is done based on scanner data
Incl. GSM/EDGE neighbours
AMR call setup success rate (CSSR)
AMR call drop rate (DCR)
Call setup time (CST
For internal use
For internal use
RF Optimisation - Tools
For RF Optimisation and neighbour verification both Scanner (3G & 2G) and UE measurements are required simultaneously
Post-Processing tool is required for data analysis
Individual call failures or drops can be analysed with Drive test tools (e.g. Nemo Outdoor) but to get bigger picture, a proper analysis tool is required
Actix or Nemo Analyser can be used for
Data analysis
Create Maps
Create KPI reports
NetActPlanner can be used to verify the proposed coverage optimisation solution e.g. Antenna tilting or Panning
In some cases it is possible to use Automatic Optimisation tools like “Optimal Planner”, which is part of NetActPlanner platform
Optimal Planner can be used for initial RF optimisation but it cannot replace RF verification /optimisation based on network scanning data
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
Drive route
To get an accurate view of Coverage and Quality on the ground then Field Measurements with Scanner and UE are required.
Generally, simulation result is not too far from actual field result
Model tuning adapted from other project (low effort ) => error !
RSCP scanner Measurements above predicted values => prediction bit pessimistic
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
HANDLED PROCESSES
Scalable Optimisation from roll-out to site densification
Cost management according to Network strategy and business plan
Site Selection
E.g. Selection between existing GSM sites - which sites provide optimum 3G performance
Optimised parameter for each BTS
Tilt (mechanical, electrical)
Can networks be Optimised automatically?
Tools being developed in order to automate the solution for finding an optimal plan
Optimisation is done based on prediction data, NOT based on real network measurements
NetAct
Optimal
Planner
For internal use
No downtilts
Service
For internal use
Composite Videophone
Mean Attempted
100.295
63.28%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
Note: Terminals can fail to connect for multiple reasons so the failure reason percentages can sum to more than 100%.
Failure Videophone
Cell Identity
Failure Rate
Percentage of Failures due to No UL Code Channel Space Primary Channel
Percentage of Failures due to No DL Code Channel Space Primary Channel
Percentage of Failures due to UL Code Channel Space Channel Limit Reached
Percentage of Failures due to DL Code Channel Space Channel Limit Reached
Percentage of Failures due to No UL WSPcapacity Primary Channel
Percentage of Failures due to No DL WSPcapacity Primary Channel
Percentage of Failures due to UL WSPcapacity Channel Limit Reached
Percentage of Failures due to DL WSPcapacity Channel Limit Reached
Percentage of Failures due to Low Pilot SIR
Percentage of Failures due to Downlink Eb/No (Range)
Percentage of Failures due to Downlink Eb/No (Capacity)
Percentage of Failures due to Uplink Eb/No
Percentage of Failures due to Noise Rise
NodeB1A
0.020
1.600
1.25%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
NodeB1B
1.465
5.290
27.69%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB1C
1.130
10.235
11.04%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB2A
0.005
1.585
0.32%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
NodeB2B
0.025
8.950
0.28%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB2C
0.120
6.180
1.94%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
91.67%
0.00%
8.33%
NodeB3A
0.110
2.610
4.21%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB3B
1.785
11.185
15.96%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB3C
1.085
9.915
10.94%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB4A
0.140
9.345
1.50%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB4B
0.005
1.395
0.36%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB4C
1.215
8.045
15.10%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB5A
0.025
2.715
0.92%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB5B
0.440
4.775
9.21%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB5C
0.010
3.110
0.32%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB6A
0.810
7.880
10.28%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB6B
2.380
8.495
28.02%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB6C
1.690
6.205
27.24%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.89%
NodeB7A
0.670
4.610
14.53%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
97.76%
0.00%
2.24%
NodeB7B
0.000
2.185
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB7C
0.005
3.130
0.16%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB8A
0.805
7.475
10.77%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
96.89%
0.00%
3.11%
NodeB8B
0.060
4.760
1.26%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB8C
0.045
6.380
0.71%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB9A
0.000
1.090
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB9B
0.045
4.690
0.96%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB9C
0.625
3.765
16.60%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB10A
0.005
1.355
0.37%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
NodeB10B
0.255
4.915
5.19%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
98.04%
0.00%
1.96%
NodeB10C
3.735
8.780
42.54%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
1.07%
NodeB11A
0.010
1.710
0.58%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
NodeB11B
3.765
12.595
29.89%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB11C
0.000
4.035
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
Cell Identity
Total TX Power (dBm)
Max TX Power (dBm)
Common Channel Power (dBm)
Cell Identity
UL WSPcapacity Primary Channels Used
UL WSPcapacity Handover Channel Used-Soft
UL WSPcapacity Handover Channel Used-Softer
DL WSPcapacity Primary Channels Used
DL WSPcapacity Handover Channel Used-Soft
DL WSPcapacity Handover Channel Used-Softer
NodeB1A
6.320
0.000
0.000
6.320
2.300
0.960
6.320
2.300
0.000
6.320
2.300
0.000
NodeB1B
15.300
0.000
0.000
15.300
50.740
0.980
15.300
50.580
0.000
15.300
50.580
0.000
NodeB1C
36.420
0.000
0.000
36.420
16.540
1.280
36.420
16.400
0.000
36.420
16.400
0.000
NodeB2A
6.320
0.000
0.000
6.320
0.100
2.800
6.320
0.100
0.000
6.320
0.100
0.000
NodeB2B
35.700
0.000
0.000
35.700
3.000
2.480
35.700
3.000
0.000
35.700
3.000
0.000
NodeB2C
24.240
0.000
0.000
24.240
13.700
0.160
24.240
13.480
0.000
24.240
13.480
0.000
NodeB3A
10.000
0.000
0.000
10.000
15.000
0.540
10.000
15.000
0.000
10.000
15.000
0.000
NodeB3B
37.600
0.000
0.000
37.600
15.620
1.640
37.600
15.560
0.000
37.600
15.560
0.000
NodeB3C
35.320
0.000
0.000
35.320
11.600
2.860
35.320
11.440
0.000
35.320
11.440
0.000
NodeB4A
36.820
0.000
0.000
36.820
9.780
0.300
36.820
9.780
0.000
36.820
9.780
0.000
NodeB4B
5.560
0.000
0.000
5.560
2.660
2.320
5.560
2.660
0.000
5.560
2.660
0.000
NodeB4C
27.320
0.000
0.000
27.320
24.100
1.520
27.320
24.100
0.000
27.320
24.100
0.000
NodeB5A
10.760
0.000
0.000
10.760
25.280
1.840
10.760
24.800
0.000
10.760
24.800
0.000
NodeB5B
17.340
0.000
0.000
17.340
28.060
0.660
17.340
27.740
0.000
17.340
27.740
0.000
NodeB5C
12.400
0.000
0.000
12.400
16.400
2.400
12.400
15.080
0.000
12.400
15.080
0.000
NodeB6A
28.280
0.000
0.000
28.280
14.620
1.640
28.280
14.500
0.000
28.280
14.500
0.000
NodeB6B
24.460
0.000
0.000
24.460
26.460
0.920
24.460
26.100
0.000
24.460
26.100
0.000
NodeB6C
18.060
0.000
0.000
18.060
25.200
1.160
18.060
24.980
0.000
18.060
24.980
0.000
NodeB7A
15.760
0.000
0.000
15.760
31.420
1.660
15.760
30.640
0.000
15.760
30.640
0.000
NodeB7B
8.740
0.000
0.000
8.740
3.920
0.860
8.740
3.880
0.000
8.740
3.880
0.000
NodeB7C
12.500
0.000
0.000
12.500
9.220
0.040
12.500
8.800
0.000
12.500
8.800
0.000
NodeB8A
26.680
0.000
0.000
26.680
18.200
2.900
26.680
18.060
0.000
26.680
18.060
0.000
NodeB8B
18.800
0.000
0.000
18.800
9.140
0.940
18.800
9.120
0.000
18.800
9.120
0.000
NodeB8C
25.340
0.000
0.000
25.340
4.000
0.740
25.340
3.580
0.000
25.340
3.580
0.000
NodeB9A
4.360
0.000
0.000
4.360
11.700
0.740
4.360
11.700
0.000
4.360
11.700
0.000
NodeB9B
18.580
0.000
0.000
18.580
14.980
1.700
18.580
14.960
0.000
18.580
14.960
0.000
NodeB9C
12.560
0.000
0.000
12.560
23.340
0.540
12.560
23.040
0.000
12.560
23.040
0.000
NodeB10A
5.400
0.000
0.000
5.400
6.240
0.180
5.400
6.180
0.000
5.400
6.180
0.000
NodeB10B
18.640
0.000
0.000
18.640
20.440
0.380
18.640
19.960
0.000
18.640
19.960
0.000
NodeB10C
20.180
0.000
0.000
20.180
40.280
0.340
20.180
40.280
0.000
20.180
40.280
0.000
NodeB11A
6.800
0.000
0.000
6.800
4.780
0.040
6.800
4.780
0.000
6.800
4.780
0.000
NodeB11B
35.320
0.000
0.000
35.320
28.700
2.140
35.320
28.660
0.000
35.320
28.660
0.000
NodeB11C
16.140
0.000
0.000
16.140
5.300
1.660
16.140
4.520
0.000
16.140
4.520
0.000
Cell Identity
Cell Identity
Load
Cell Identity
Total Samples
Blocking Probability
Blocking Probability 95% confidence interval (+/-)
Percentage of Blocks due to No UL Code Channel Space Primary Channel
Percentage of Blocks due to No DL Code Channel Space Primary Channel
Percentage of Blocks due to UL Code Channel Space Channel Limit Reached
Percentage of Blocks due to DL Code Channel Space Channel Limit Reached
Percentage of Blocks due to No UL WSPcapacity Primary Channel
Percentage of Blocks due to No DL WSPcapacity Primary Channel
Percentage of Blocks due to UL WSPcapacity Channel Limit Reached
Percentage of Blocks due to DL WSPcapacity Channel Limit Reached
Percentage of Blocks due to Downlink Eb/No (Capacity)
Percentage of Blocks due to Noise Rise
NodeB1A
315.000
0.00%
0.000
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB1B
756.000
70.90%
3.238
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.37%
NodeB1C
1806.000
33.28%
2.173
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB2A
315.000
0.00%
0.000
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB2B
1778.000
0.67%
0.381
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB2C
1194.000
12.23%
1.858
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
98.63%
1.37%
NodeB3A
488.000
39.14%
4.330
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.52%
NodeB3B
1873.000
56.86%
2.243
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB3C
1759.000
33.26%
2.202
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
99.83%
0.17%
NodeB4A
1831.000
6.39%
1.120
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
99.15%
0.85%
NodeB4B
277.000
0.00%
0.000
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB4C
1356.000
46.24%
2.654
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
99.84%
0.16%
NodeB5A
529.000
10.21%
2.580
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB5B
860.000
31.86%
3.114
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB5C
619.000
5.33%
1.770
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB6A
1407.000
41.01%
2.570
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.17%
NodeB6B
1216.000
67.11%
2.641
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
99.26%
0.86%
NodeB6C
898.000
68.82%
3.030
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
99.84%
0.32%
NodeB7A
783.000
47.89%
3.499
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
99.47%
0.53%
NodeB7B
435.000
0.00%
0.000
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB7C
625.000
1.44%
0.934
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB8A
1325.000
30.11%
2.470
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB8B
938.000
2.45%
0.990
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB8C
1264.000
3.72%
1.043
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB9A
216.000
0.00%
0.000
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB9B
921.000
8.79%
1.829
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB9C
625.000
66.08%
3.712
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
99.76%
0.24%
NodeB10A
269.000
0.37%
0.727
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
NodeB10B
925.000
18.70%
2.513
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
97.69%
2.31%
NodeB10C
1004.000
71.91%
2.780
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.55%
NodeB11A
337.000
0.00%
0.000
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB11B
1758.000
60.47%
2.285
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.09%
NodeB11C
804.000
0.00%
0.000
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
For internal use
Antenna bearing ranges:
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
Composite Videophone
Mean Attempted
95.835
56.17%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
Note: Terminals can fail to connect for multiple reasons so the failure reason percentages can sum to more than 100%.
Failure Videophone
Cell Identity
Failure Rate
Percentage of Failures due to No UL Code Channel Space Primary Channel
Percentage of Failures due to No DL Code Channel Space Primary Channel
Percentage of Failures due to UL Code Channel Space Channel Limit Reached
Percentage of Failures due to DL Code Channel Space Channel Limit Reached
Percentage of Failures due to No UL WSPcapacity Primary Channel
Percentage of Failures due to No DL WSPcapacity Primary Channel
Percentage of Failures due to UL WSPcapacity Channel Limit Reached
Percentage of Failures due to DL WSPcapacity Channel Limit Reached
Percentage of Failures due to Low Pilot SIR
Percentage of Failures due to Downlink Eb/No (Range)
Percentage of Failures due to Downlink Eb/No (Capacity)
Percentage of Failures due to Uplink Eb/No
Percentage of Failures due to Noise Rise
NodeB1B
0.570
10.255
5.56%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB1A
0.025
1.705
1.47%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
NodeB1C
0.765
11.470
6.67%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB2C
0.050
7.190
0.70%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
70.00%
0.00%
30.00%
NodeB2A
0.030
2.140
1.40%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
NodeB2B
0.015
9.535
0.16%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB3C
0.005
6.680
0.07%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB3A
0.025
3.085
0.81%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB3B
1.775
13.125
13.52%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
98.87%
0.00%
2.25%
NodeB4A
0.000
4.425
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB4C
1.100
9.660
11.39%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
96.82%
0.00%
3.18%
NodeB4B
0.000
1.830
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB5A
0.010
2.785
0.36%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB5B
0.080
4.875
1.64%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB5C
0.015
3.900
0.38%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB6A
0.200
8.845
2.26%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
97.50%
0.00%
2.50%
NodeB6B
0.270
4.280
6.31%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
96.30%
0.00%
3.70%
NodeB6C
0.005
3.205
0.16%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB7A
0.585
7.090
8.25%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
96.58%
0.00%
3.42%
NodeB7B
0.000
2.740
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB7C
0.000
2.540
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB8A
0.725
11.485
6.31%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
97.93%
0.00%
2.07%
NodeB8B
0.040
7.090
0.56%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB8C
0.000
6.635
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB9A
0.005
0.315
1.59%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
NodeB9B
0.065
5.230
1.24%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB9C
0.985
8.495
11.60%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
1.02%
NodeB10A
0.000
2.230
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB10B
0.000
2.220
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB10C
0.015
3.495
0.43%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
NodeB11A
0.010
1.670
0.60%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
NodeB11C
0.000
4.145
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB11B
0.005
3.625
0.14%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
0.00%
Cell Identity
Total TX Power (dBm)
Max TX Power (dBm)
Common Channel Power (dBm)
Cell Identity
UL WSPcapacity Primary Channels Used
UL WSPcapacity Handover Channel Used-Soft
UL WSPcapacity Handover Channel Used-Softer
DL WSPcapacity Primary Channels Used
DL WSPcapacity Handover Channel Used-Soft
DL WSPcapacity Handover Channel Used-Softer
NodeB1B
38.740
0.000
0.000
38.740
10.480
6.940
38.740
10.480
0.000
38.740
10.480
0.000
NodeB1A
6.720
0.000
0.000
6.720
2.120
0.860
6.720
2.120
0.000
6.720
2.120
0.000
NodeB1C
42.820
0.000
0.000
42.820
20.040
6.560
42.820
18.280
0.000
42.820
18.280
0.000
NodeB2C
28.560
0.000
0.000
28.560
11.480
2.740
28.560
11.480
0.000
28.560
11.480
0.000
NodeB2A
8.440
0.000
0.000
8.440
0.340
2.180
8.440
0.340
0.000
8.440
0.340
0.000
NodeB2B
38.080
0.000
0.000
38.080
0.280
4.640
38.080
0.280
0.000
38.080
0.280
0.000
NodeB3C
26.700
0.000
0.000
26.700
10.240
2.440
26.700
10.200
0.000
26.700
10.200
0.000
NodeB3A
12.240
0.000
0.000
12.240
17.560
0.980
12.240
16.060
0.000
12.240
16.060
0.000
NodeB3B
45.400
0.000
0.000
45.400
13.860
1.320
45.400
13.860
0.000
45.400
13.860
0.000
NodeB4A
17.700
0.000
0.000
17.700
5.460
1.960
17.700
5.240
0.000
17.700
5.240
0.000
NodeB4C
34.240
0.000
0.000
34.240
19.360
1.160
34.240
18.880
0.000
34.240
18.880
0.000
NodeB4B
7.320
0.000
0.000
7.320
6.960
1.180
7.320
6.960
0.000
7.320
6.960
0.000
NodeB5A
11.100
0.000
0.000
11.100
27.920
1.840
11.100
26.860
0.000
11.100
26.860
0.000
NodeB5B
19.180
0.000
0.000
19.180
25.220
0.760
19.180
24.600
0.000
19.180
24.600
0.000
NodeB5C
15.540
0.000
0.000
15.540
18.440
2.280
15.540
17.220
0.000
15.540
17.220
0.000
NodeB6A
34.580
0.000
0.000
34.580
16.020
2.420
34.580
15.820
0.000
34.580
15.820
0.000
NodeB6B
16.040
0.000
0.000
16.040
34.920
1.660
16.040
33.880
0.000
16.040
33.880
0.000
NodeB6C
12.800
0.000
0.000
12.800
14.220
3.020
12.800
14.040
0.000
12.800
14.040
0.000
NodeB7A
26.020
0.000
0.000
26.020
26.360
2.520
26.020
26.360
0.000
26.020
26.360
0.000
NodeB7B
10.960
0.000
0.000
10.960
1.280
2.640
10.960
1.180
0.000
10.960
1.180
0.000
NodeB7C
10.160
0.000
0.000
10.160
3.680
1.980
10.160
3.460
0.000
10.160
3.460
0.000
NodeB8A
43.040
0.000
0.000
43.040
17.540
4.680
43.040
16.700
0.000
43.040
16.700
0.000
NodeB8B
28.200
0.000
0.000
28.200
7.960
0.960
28.200
7.640
0.000
28.200
7.640
0.000
NodeB8C
26.540
0.000
0.000
26.540
3.400
3.560
26.540
2.860
0.000
26.540
2.860
0.000
NodeB9A
1.240
0.000
0.000
1.240
7.100
1.560
1.240
7.100
0.000
1.240
7.100
0.000
NodeB9B
20.660
0.000
0.000
20.660
20.140
0.340
20.660
19.900
0.000
20.660
19.900
0.000
NodeB9C
30.040
0.000
0.000
30.040
25.160
0.540
30.040
25.160
0.000
30.040
25.160
0.000
NodeB10A
8.920
0.000
0.000
8.920
6.660
1.300
8.920
6.020
0.000
8.920
6.020
0.000
NodeB10B
8.880
0.000
0.000
8.880
14.180
0.660
8.880
14.180
0.000
8.880
14.180
0.000
NodeB10C
13.920
0.000
0.000
13.920
14.860
0.800
13.920
14.240
0.000
13.920
14.240
0.000
NodeB11A
6.640
0.000
0.000
6.640
5.140
0.260
6.640
5.140
0.000
6.640
5.140
0.000
NodeB11C
16.580
0.000
0.000
16.580
6.300
0.540
16.580
5.920
0.000
16.580
5.920
0.000
NodeB11B
14.480
0.000
0.000
14.480
16.720
0.360
14.480
16.200
0.000
14.480
16.200
0.000
Cell Identity
Cell Identity
Load
Cell Identity
Total Samples
Blocking Probability
Blocking Probability 95% confidence interval (+/-)
Percentage of Blocks due to No UL Code Channel Space Primary Channel
Percentage of Blocks due to No DL Code Channel Space Primary Channel
Percentage of Blocks due to UL Code Channel Space Channel Limit Reached
Percentage of Blocks due to DL Code Channel Space Channel Limit Reached
Percentage of Blocks due to No UL WSPcapacity Primary Channel
Percentage of Blocks due to No DL WSPcapacity Primary Channel
Percentage of Blocks due to UL WSPcapacity Channel Limit Reached
Percentage of Blocks due to DL WSPcapacity Channel Limit Reached
Percentage of Blocks due to Downlink Eb/No (Capacity)
Percentage of Blocks due to Noise Rise
NodeB1B
1928.000
12.45%
1.474
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB1A
336.000
0.00%
0.000
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB1C
2129.000
17.00%
1.596
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB2C
1420.000
2.61%
0.829
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
78.38%
21.62%
NodeB2A
420.000
0.00%
0.000
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB2B
1898.000
0.58%
0.341
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB3C
1330.000
0.45%
0.360
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB3A
607.000
7.25%
2.063
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
97.73%
2.27%
NodeB3B
2256.000
37.28%
1.995
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
98.69%
2.62%
NodeB4A
883.000
1.13%
0.698
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
70.00%
30.00%
NodeB4C
1697.000
30.11%
2.183
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
98.43%
1.57%
NodeB4B
364.000
0.27%
0.538
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
NodeB5A
550.000
5.27%
1.868
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
96.55%
3.45%
NodeB5B
953.000
5.98%
1.506
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB5C
769.000
0.65%
0.568
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB6A
1721.000
11.39%
1.501
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
95.92%
5.10%
NodeB6B
795.000
20.75%
2.819
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
95.15%
5.45%
NodeB6C
634.000
0.79%
0.689
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
40.00%
60.00%
NodeB7A
1292.000
26.86%
2.417
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
99.71%
0.29%
NodeB7B
545.000
0.18%
0.359
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB7C
506.000
0.00%
0.000
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB8A
2143.000
20.95%
1.723
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB8B
1403.000
3.99%
1.024
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB8C
1321.000
0.68%
0.444
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB9A
61.000
0.00%
0.000
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB9B
1029.000
3.50%
1.123
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
97.22%
2.78%
NodeB9C
1496.000
31.08%
2.345
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
98.28%
1.72%
NodeB10A
444.000
0.68%
0.762
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
NodeB10B
441.000
0.68%
0.767
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
NodeB10C
692.000
2.17%
1.085
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
6.67%
NodeB11A
328.000
0.00%
0.000
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB11C
825.000
0.00%
0.000
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
NodeB11B
718.000
2.37%
1.112
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
100.00%
0.00%
For internal use
For internal use
Dominance
DL Coverage (RSCP)
UL coverage
Handover performance
For internal use
Dominance Verification
First task is to overlay the cells dominance area to check that the coverage areas of the cells are clear, all sites are “on air” and there are no cross feeders
Missing Site- No dominance server in the area
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
Coverage
If lack of coverage is indicated then coverage enhancement is required.
Has excessive tilting been used? Is up-tilting or an Panning the antenna an option for some cells.
For initial roll out stages (low traffic) increasing the P-CPICH power is an option the feasibility will depend upon the margins in the link budget
Poor coverage during Pre- Optimisation & Acceptance due the missing site
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
Coverage
What impact will any planned sites (if any) have on the overall performance?
A study of UE logs for the area should provide an indication of the number of failed Setups/calls that would have been prevented if a planned site was available.
Failures due to missing sites needs to be estimated and this information should be communicated to the operator. It may be possible to influence the roll out schedule based on this information
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
Coverage verification with RSCP Scan for each SC
CPICH_SCAN_RSCP_for SC X overlay plotted out for all three sectors of a site showing the coverage for each sector
Gives a good indication if a sector is radiating too far and may need down tilt.
281
282
280
280
281
Note !!
For internal use
Verification of Swapped feeder or other issue
Plotting RSCP of each SC highlights any hardware or databuild issues where the coverage area of the cell is different to the planned coverage.
This will include swapped feeders, incorrect azimuths/tilts or incorrect scrambling codes assigned to the cell
SC161 and SC162 Tx from same sector
crossed feeders can occur at:
Antenna
For internal use
RSCP Verification
Check that the RSCP levels for the area meet the target thresholds for the service and environment (clutter, building loss)
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
Recommend physical optimisation: downtilts and panning.
Implement changes.
Success criteria: improved quality, no reduction in coverage
Pollution could be a result of High amount of RRC access reselection failures (RRC_ACC_FAIL_RESEL)
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
Ec/No Verification
If coverage is acceptable then check for area of poor EcNo in the area.
Poor coverage areas can still have good Ec/No if there is dominating server
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
Pilot Pollution Analysis I
Pilot pollution areas can be shown with Scanner Pilot Pollution query with user defined RSCP and EcNo levels
(CPICH_SCAN_EcNo_Sorted_By_EcNo (0)<-12)AND (CPICH_SCAN_RSCP_Sorted_By_EcNo (0)>-92)
For internal use
Pilot Pollution Analysis II
Pilot polluter workbook shows the worst polluters in the area e.g. SC 344 have most of the samples
SC 344 displayed over pilot pollution
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
Pilot Pollution Example
Scanner sees 5 SC’s, all within 5 dB of each other.
This is clearly an area suffering from pilot pollution.
RSCP is good -91 dBm but EcNo is bad -10 dB
Looking at the dashed lines to the cells serving at this point we can see that there are several cells (SCs 136, 496, 272) which are not particularly close to the point in question and are candidates for down-tilting
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
Pilot Pollution Example
SC 272 is the furthest away these sites and is joint second best server.
SC 272
This site is clearly radiating much too far and is a definite candidate for down-tilting.
By removing scrambling codes within 5dBs of the best server, we can improve the best server’s Ec/Io
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
UL Coverage Verification
By using UE together with Scanner during testing we can check the UEs transmit power for problem areas where UE cannot maintain the link quality
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
For internal use
Compare scanner measurements with planned quality and coverage thresholds
CPICH RSCP => planned threshold e.g. -90 dBm
CPICH Ec/No => planned threshold e.g. -12 dBm
Yes
Yes
Yes
No
No
Ec/No target agreed with customer & depends service mix
Currently X = Max AS size = 3 for Nokia RAN
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
Compare scanner measurements with planned quality and coverage thresholds agreed with Customer
The initial planned link budgets should be referred to in order to measure how well the coverage and quality criteria is met
When adapting link budgets to show measured value on the ground then its important to remember that Slow fade margin should be removed as this is implicit in the actual measurement.
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
RF Performance Measurements
Distribution of RSCP and Ec/No
Distribution of RSCP and Ec/No for Problem Area: Dotted distribution of measured CPICH RSCP and Ec/No profiles for problem area.
This plot is very useful for compare the network improvement achieved in 2nd drive test with that of 1st drive test.
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
Measured statistics indicate that area has sufficient coverage but has relatively poor Quality
Scatter plot
RSCP
Ec/No
-10
-6
-2
-110
-70
Rural DL Qual > -100.8dBm
<=3 servers in 7dB
For internal use
RF Optimisation
Check if the cause of call setup failure is CPICH RSCP and Ec/No coverage problem
The received best server’s CPICH RSCP and Ec/No will be compared to the coverage thresholds at the location where call setup failed and if best server’s CPICH RSCP OR Ec/No is less than the thresholds, coverage optimisation will be performed.
The thresholds of CPICH RSCP and Ec/No depend on UE’s sensitivity:
CPICH RSCP coverage threshold = -110 dBm
CPICH Ec/No coverage threshold = -16 dB
Simulation using NetActPlanner will be used to verify the proposed coverage optimisation solution e.g Antenna tilting or Panning
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
UE Measurements
To better understand the failure mechanisms that contribute to radio failure as measured with network statistics.
Categorise the failure causes for Call Setup and drop call performance.
Drop Call analysis shows that significant proportion of Interference failures is due the missing neighbour
Analysis also confirms that conclusion derived from the scanner data that DL interference is major contributing factor to failure on the radio Interface
KPI Route CSF Causes
11.11%
14.81%
18.52%
29.63%
3.70%
22.22%
For internal use
Down-tilting of interfering cells’ antenna, which generate pilot pollution
Change CPICH Tx Power: Increase serving cell’s Tx power but decrease interfering cell’s Tx power
Change antenna bearing angles of cells involved in pilot pollution
Change antenna patterns of cells involved in pilot pollution. Smaller gains for interfering cells and higher gain for victim cell
Decrease antenna height of interfering cells and increase antenna height of victim cell with adequate tilting angle
Up-tilting of serving cell’s antenna to extend coverage radius and to improve unsatisfied coverage area
Increase CPICH Tx Power of serving cell
Change Antenna Bearing Angle: Focus the main beam of antenna to coverage holes and low RSCP area
Change Antenna Pattern: Displace with higher gain antenna with adequate antenna tilting
Increase serving cell’s antenna height to get higher effective antenna gain but there is risk to make undesirable inter-cell interference to adjacent cells
Tuning methods for
Coverage Problem Area
Tuning methods for
Dominance Problem Area
For internal use
Antenna tilting (or panning) is needed mainly if:
There is too much interference created by a site covering too much (overshooting)
There is lack of coverage or dominance
One should carefully consider the tilt type
Electrical or mechanical (both have advantages and disadvantages)
Antenna tilting should be followed by another round of drive-tests in order to evaluate the impact
Multiple antenna tilt or azimuth changes in the same time in the same area should be avoided
Decisions must be made based on scanner measurements.
UE measurements can be also used, but they can sometimes lead to wrong results, for example in case of missing neighbours.
Tilt changes include both down and up-tilting.
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
Mechanical
The downtilt angle varies over the horizontal beamwidth. Patterns measured ±90° from the centre of the beam have decreasing tilt angle until there is no tilt 90° from the main beam.
The horizontal half-power beam width increases with greater downtilt angle.
The resulting gain reduction depends on azimuth direction.
Electrical
The horizontal half-power beamwidth is independent of the downtilt angle.
There is identical gain reduction in all azimuth directions.
from Kathrein, Scala Division
For internal use
Mechanical down tilt causes deformation in the horizontal pattern
Deformation of the
For internal use
The Adjustable EDT antennas can be adjusted manually or remotely
Phase shifters provides variable phase distribution which in turn keeps the pattern shape constant
Maximum Adjustable EDT range approx. 0-14° (normally 0-8°)
For a higher downtilt angle a combination of the Mechanical DT and the Adjustable EDT is recommended
Horizontal pattern
remains constant
Remote use
Manual use
For internal use
Impact on Ec/No
For internal use
Impact on Ec/No
For internal use
Antenna tilt example -1 deg E-tilt – Overshooting Cell
No dominant Server in the area due the missing site JS9218
Site JS9125 (SC28) from cluster 5 is overshooting to cluster 1
Before
After
Site JS9125 (SC28) was tilted by 1 deg (E-tilt From 4 deg to 5 deg)
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
Antenna Tilting Example - 2 deg E-tilt
After antenna tilting, new drive-test should be performed in order to verify changes
Before
After
For internal use
For internal use
New Site Integration
New sites should be integrated without degrading the performance of existing sites.
It is possible that after driving the new and surrounding site, both will require RF optimisation (tilting, panning)
Use Both Scanner and UE (Voice Call) Measurements to check
Cross Feeders
External interference
SHO functionality
For internal use
New Site Integration
Integrate new sites on different frequency
Define intra-site neighbours
Apply necessary tilts to new and surrounding sites
Add all Missing Neighbours
=> Turn Site on with correct frequency
Integrate new site on SAME frequency during low traffic period (Nigh Time)
Define neighbours
Drive new site and analyse
Apply necessary tilts to new and surrounding sites
Add all Missing neighbours
=> Turn Site on
This option require possibilities to use drive test team during night time (cost issue)
This option does not give us right information about network situation (Ec/No etc)
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
For internal use
Neighbour List Verification
Neighbour definitions required by cell re-selection and handover
Soft handovers are based upon intra-frequency neighbour list
Hard handovers are based upon either intra-frequency (Between RNCs without Iur or Iur congestion) , inter-frequency (IFHO) or inter-system (ISHO) neighbour lists
Each neighbour has a set of associated parameters e.g. CPICH measurement offset
The post processing tool should be able to suggest appropriate neighbour lists
Strategy for initial system deployment is to place the emphasis upon adding neighbours rather than removing them
Total max 111 in RNC database, limitation due to specifications of SIB11/12 size
Intra-Frequency Neighbors
Cell a
Cell b
Cell c
Cell d
Cell e
Max. 31
Inter-Frequency Neighbors
Cell k
Cell l
Cell m
Cell n
Cell o
Max. 48
(32 /carrier)
Inter-System Neighbors
Cell r
Cell s
Cell t
Cell u
Cell v
Max. 32
For internal use
Neighbour List Verification – SIB 11/12
There is a restriction on the number of cells contained in SIB 11/12 due to an inconsistency problem in the standards
SIB 11/12 should be able to contain a maximum of 96 neighbours
(32 intra-frequency cells, 32 inter-frequency cells and 32 GSM cells)
On the other hand, the physical size of SIB data (no more than 3552 bits) has capacity only for about (depending on the type etc.) 47 cells!!
If too many adjacencies are declared, the cell will go blocked by system with alarm:
7771 WCDMA CELL OUT OF USE (BCCH scheduling error)
As a rule of thumb, assuming that …
ADJS=15, ADJG=15, ADJI=15
… and “realistic worst case values”, SIB11 length = 3187.5 < 3552 -> OK!!
Some sites might need additional neighbors and might pose a problem with the SIB11 limitation
Avoid setting AdjsQoffset2 values, different CPICH values or other parameters used to tune cell reselection or handover
Further information Technical Note No. 046 / Restriction on number of
cells in SIB11/12 due to inconsistency problem in 3GPP TS 25.331
Max. 96 neighbours due SIB limitation
The current RN2.0, RN2.1 and RN2.2 implementation of the Radio network configuration
database presumes that all 96 cells will fit into the SIB data. However, if the number of
neighboring cells exceeds 47 cells, the NBAP interface is not able to pack the neighbour
cell information into the SIB data and the scheduling of the system information blocks
fails. The cell is blocked by the system and an alarm 7771 WCDMA CELL OUT OF USE
(BCCH scheduling error) is reported for the cell.
The physical size of SIB data limits the maximum number of neighboring cells, included
in the System Information for the cell selection and re-selection, to 47 cells. The capacity
is smaller (35 cells) if HCS (hierarchical cell structure) is used due to additional cell reselection
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
Neighbour List Verification – SIB 11/12
When offsets are added to the neighbours or the CPICH power of the neighbour cell is different to that of the serving cell the length of the message for each neighbour in SIB 11/12 is increased
The length of one ADJS with no offsets is 48 bits
The length of an ADJS with AdjsQoffset1 or AdjsQoffset2 is 48 or 56 bits on a case by case basis (average length 55.2 bits)
The length of an ADJS with AdjsQoffset1 and AdjsQoffset2 is 56 or 64 bits on a case by case basis (average length 62.1 bits)
When the neighbour cell has a different CPICH Tx Power from the serving cell
Without Offset and AdjsPtxCPICH : 54.2bits
With AdjsQOffset1 or AdjsQOffset2 : 61.1bits
With both AdjsQOffset1 and AdjsQOffset2 : 68bits
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
Neighbour List Verification
There are a number of approaches that can be used to both plan and verify the neighbour plan
Drive Testing
Neighbour Creation
Manual Check
For internal use
Neighbour List Verification - Analytical
Analytical Neighbour Planning methods are traditionally used to generate original neighbour lists but they can also be used for verification and new site addition.
Planning Tools – use coverage arrays and handover parameter data to determine required neighbour relations
Other desk top tools can be based on:
Site coordinate data,
Cell azimuth data,
For internal use
Neighbour List Verification - Manual
Cell in blue had nine 3G neighbours defined – highlighted in green on map
6 missing neighbours were identified for this site and added – Manual Check would have identified at least 5
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
Process starts directly with the drive test
High Level Process
Planning Tool
Record drive test results with Scanner in ‘TOP N’ mode
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
Neighbour List Verification
High Level Process
Part automatic and part manual neighbour list analysis
Analysis within a tool such as Actix Analyzer is automatic and numerical
Analysis requires the definition of a neighbour window which is applied to the CPICH Ec/Io measurements
Recommended to set the neighbour window as 10 dB (drop window + margin)
Neighbour Window
Record drive test results with Scanner in ‘TOP N’ mode
Analysis (within Actix Analyzer)
For internal use
Neighbour List Verification
Analysis provided by the post processing tool:
Consider adding neighbours reported by the tool
If neighbour list is full then consider replacing some of the existing neighbours
Do not remove existing neighbours without further investigation
Run (Actix) Analyzer Routine
Consider replacing existing neighbours by those suggested by the tool
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
Neighbour List Verification
Bar chart
SC
Site
Sector
NBR Not Seen
00001085A
212
{}
00001085B
364
{}
00164480C
367
{}
00113552C
7
{}
0
90
0
0
0
0
0
0
91
0
0
4
89 (75.0%); 365 (50.0%); 224 (50.0%); 348 (25.0%); 297 (25.0%); 277 (25.0%); 218 (25.0%); 216 (25.0%)
0
0
96
0
0
0
0
0
0
99
00201142B
385
{}
00113425C1
16
{}
365 (66.7%); 297 (66.7%); 351 (33.3%); 298 (33.3%); 216 (33.3%)
0
0
141
0
0
0
0
0
0
144
0
0
0
0
0
0
145
0
0
0
0
0
0
146
0
0
0
0
0
0
147
0
0
0
0
0
0
148
0
0
0
0
0
0
149
0
0
0
0
0
0
150
0
0
0
0
0
0
152
0
0
0
0
0
0
154
0
0
0
0
0
0
155
0
0
0
0
0
0
156
0
0
0
0
0
0
160
0
0
0
0
0
0
161
0
0
0
0
0
0
162
0
0
0
0
0
0
163
0
0
0
0
0
0
164
00020954B
90
{}
{}
{}
00020960B
165
{}
00122094C1
173
{}
00122094B
126
{}
00161126C
199
{}
00161126A
122
{}
00143783C
47
{}
00192241C
115
{}
00192241B
54
{}
00192241A
236
{}
0
237
0
0
0
0
0
0
238
0
0
0
0
0
0
239
0
0
0
0
0
0
245
0
0
0
0
0
0
246
0
0
0
0
0
0
247
0
0
0
0
0
0
248
0
0
0
0
0
0
249
0
0
0
0
0
0
250
HEMDEAN
00007825C
671
{}
251
HEMDEAN
00007825B
258
{}
0
252
HEMDEAN
00007825A
580
{}
253
0
0
0
0
0
0
254
0
0
0
0
0
0
255
0
0
0
0
0
0
256
0
0
0
0
0
0
257
0
0
0
0
0
0
258
0
0
0
0
0
0
264
0
0
0
0
0
0
265
0
0
0
0
0
0
266
0
0
0
0
0
0
267
0
0
0
0
0
0
268
0
0
0
0
0
0
269
0
0
0
0
0
0
275
0
0
0
0
0
0
277
00001043A
11
{}
00001075C
254
{}
00001075A
107
{}
00194555B2
130
{}
00194555C
533
{}
284
00194555B1
175
{}
00001068C
268
{}
00001068B
104
{}
00001068A
72
{}
00195009C
233
{}
00195009A1
547
{}
283 (0.2%); 277 (0.2%); 179 (0.2%); 91 (0.2%); 89 (0.2%)
298
00195009A2
236
{}
00161114C
78
{}
00161114A
53
{}
00161114B
307
{}
00162715C
109
{}
00162715B
295
{}
00007927C
24
{}
00001070C
84
{}
00001070A
118
{}
00001070B
89
{}
00162715A
102
{}
00179719C
420
{}
00179719B2
222
{}
00001085C
167
{}
00179719B1
671
{}
440 (0.1%); 326 (0.1%); 301 (0.1%); 287 (0.1%); 282 (0.1%); 251 (0.1%); 179 (0.1%); 140 (0.1%)
352
0
0
0
0
0
0
353
0
0
0
0
0
0
354
0
0
0
0
0
0
356
0
0
0
0
0
0
357
0
0
0
0
0
0
358
0
0
0
0
0
0
359
0
0
0
0
0
0
365
00007306C
497
{}
00007306B
49
{}
00161909C
90
{}
00161909B
420
{}
00161909A
339
{}
00001077C
824
{}
421
0
0
0
0
0
0
422
00001077A
1027
{}
346 (0.2%); 344 (0.2%); 298 (0.2%); 83 (0.2%); 426 (0.1%); 303 (0.1%); 277 (0.1%); 177 (0.1%)
423
00001075B
127
{}
00114000C
33
{}
00114000A
15
{}
00089439C
230
{}
00089439A
335
{}
00089439B
497
{}
00001081C
131
{}
00001081B
216
{}
00001081A
258
{}
00008346C
18
{}
Tools
b
422 (33.9%); 423 (18.5%); 420 (13.8%); 283 (9.4%); 282 (3.9%); 286 (3.1%); 348 (2.0%); 177 (1.2%)
11
Summary:
This Report Template looks into the Neighbour list and suggest possible addition based on scanner data
Document no.
History
D1.0
4/12/02
Banner
Site_Seen
SC
Site
Sector
8410
51.48694901
-0.75217115
WCDMA_Site
Text
Neighbour Additions Table
NBR Not Seen
SC_Primary
Addition
Deletetion
Samples
80
81
82
83
350 (31.6%); 84 (21.7%); 351 (9.4%); 365 (8.5%); 349 (7.1%); 347 (5.2%); 297 (4.2%); 303 (3.3%); 218 (2.4%); 224 (1.9%); 298 (1.4%)
212
84
298 (15.1%); 218 (13.7%); 365 (12.9%); 83 (12.6%); 366 (10.4%); 351 (7.4%); 234 (6.9%); 216 (6.9%); 303 (5.5%); 85 (4.9%); 301 (3.8%); 297 (3.6%); 350 (3.3%); 349 (3.3%); 107 (1.9%); 424 (1.4%); 422 (1.4%)
364
85
216 (26.4%); 303 (24.3%); 301 (22.1%); 298 (20.7%); 234 (10.4%); 349 (5.4%); 84 (4.9%); 297 (1.9%); 233 (1.4%); 218 (1.4%); 300 (1.1%)
367
86
87
88
89
351 (42.9%); 277 (42.9%); 91 (42.9%); 365 (14.3%); 348 (14.3%); 297 (14.3%); 224 (14.3%); 218 (14.3%); 216 (14.3%)
7
90
91
89 (75.0%); 365 (50.0%); 224 (50.0%); 348 (25.0%); 297 (25.0%); 277 (25.0%); 218 (25.0%); 216 (25.0%)
4
96
99
250 (29.1%); 252 (26.8%); 251 (14.8%); 283 (10.9%); 437 (9.1%); 422 (7.3%); 433 (6.2%); 434 (4.4%); 405 (4.4%); 297 (4.4%); 285 (3.9%); 420 (3.1%); 348 (3.1%); 179 (2.3%); 436 (2.1%); 435 (2.1%); 177 (1.0%); 164 (1.0%)
385
100
101
103
104
105
106
107
366 (68.8%); 365 (43.8%); 84 (43.8%); 351 (25.0%); 349 (25.0%); 218 (25.0%); 234 (18.8%); 301 (12.5%); 297 (12.5%); 216 (12.5%); 298 (6.3%); 85 (6.3%)
16
108
109
110
111
112
113
114
115
118
119
121
122
123
124
125
126
127
139
140
365 (66.7%); 297 (66.7%); 351 (33.3%); 298 (33.3%); 216 (33.3%)
3
141
144
145
146
147
148
149
150
152
154
155
156
160
161
162
163
164
167 (42.2%); 433 (23.3%); 166 (15.6%); 250 (10.0%); 99 (4.4%); 435 (2.2%); 434 (2.2%); 437 (1.1%); 283 (1.1%)
90
165
31
166
167 (53.9%); 433 (9.9%); 164 (9.9%); 250 (8.5%); 437 (2.1%)
141
167
166 (46.1%); 164 (23.0%); 432 (20.0%); 165 (15.2%); 433 (11.5%); 250 (7.3%); 437 (3.0%); 99 (1.8%)
165
168
169
170
172
173
176
177
283 (32.9%); 179 (23.7%); 285 (17.3%); 436 (8.7%); 250 (3.5%); 437 (2.9%); 348 (2.9%); 420 (2.3%); 99 (2.3%); 280 (1.7%)
173
178
179
177 (32.5%); 283 (27.8%); 250 (13.5%); 285 (10.3%); 437 (8.7%); 422 (7.1%); 99 (7.1%); 436 (5.6%); 405 (3.2%); 286 (3.2%); 280 (1.6%)
126
184
185
186
187
193
194
195
199
206
207
211
212
213
215
216
85 (48.7%); 303 (20.6%); 298 (17.6%); 349 (13.6%); 84 (12.6%); 301 (10.6%); 234 (8.5%); 218 (6.5%); 350 (5.5%); 297 (4.5%); 233 (3.5%); 365 (2.5%); 366 (2.0%); 351 (1.0%); 300 (1.0%); 107 (1.0%)
199
217
218
84 (41.0%); 365 (30.3%); 351 (23.8%); 366 (12.3%); 216 (10.7%); 298 (9.0%); 234 (7.4%); 424 (5.7%); 297 (5.7%); 426 (4.9%); 224 (4.9%); 349 (4.1%); 85 (4.1%); 83 (4.1%); 422 (3.3%); 107 (3.3%); 303 (2.5%); 347 (1.6%); 301 (1.6%)
122
220
224
365 (76.6%); 297 (23.4%); 422 (17.0%); 351 (12.8%); 218 (12.8%); 252 (10.6%); 434 (8.5%); 83 (8.5%); 440 (4.3%); 251 (4.3%); 91 (4.3%); 84 (4.3%); 436 (2.1%); 424 (2.1%); 405 (2.1%); 348 (2.1%); 347 (2.1%); 326 (2.1%); 303 (2.1%); 301 (2.1%); 298 (2.1%);
47
225
226
230
231
232
404 (12.2%); 420 (8.7%); 234 (7.8%); 432 (4.3%); 434 (2.6%); 296 (2.6%); 233 (1.7%)
115
233
234 (90.7%); 301 (50.0%); 299 (18.5%); 216 (13.0%); 303 (9.3%); 298 (9.3%); 85 (9.3%); 232 (3.7%); 432 (1.9%); 302 (1.9%)
54
234
301 (33.5%); 233 (20.8%); 298 (20.3%); 85 (16.1%); 296 (12.3%); 303 (10.6%); 84 (10.6%); 299 (9.3%); 216 (7.2%); 297 (5.1%); 365 (3.8%); 232 (3.8%); 218 (3.8%); 366 (3.4%); 404 (1.7%); 351 (1.7%); 349 (1.7%); 302 (1.7%); 107 (1.3%)
236
237
238
239
245
246
247
248
249
250
252 (22.1%); 99 (16.7%); 437 (14.6%); 283 (14.0%); 251 (9.4%); 285 (7.5%); 422 (6.0%); 433 (5.1%); 434 (4.9%); 348 (3.4%); 297 (3.3%); 436 (2.8%); 179 (2.5%); 167 (1.8%); 166 (1.8%); 164 (1.3%); 435 (1.2%); 345 (1.0%)
282 (0.1%); 281 (0.1%); 280 (0.1%)
671
251
252 (41.1%); 250 (24.4%); 99 (22.1%); 345 (6.6%); 422 (5.8%); 287 (5.4%); 348 (5.0%); 297 (2.7%); 434 (2.3%); 346 (2.3%); 365 (1.9%); 283 (1.9%); 286 (1.2%)
258
252
250 (25.5%); 251 (18.3%); 99 (17.8%); 297 (7.4%); 434 (6.9%); 433 (5.0%); 422 (4.1%); 437 (3.6%); 365 (2.8%)
440 (0.2%); 404 (0.2%); 326 (0.2%); 277 (0.2%)
580
253
254
255
256
257
258
264
265
266
267
268
269
275
277
351 (36.4%); 89 (27.3%); 348 (18.2%); 424 (9.1%); 422 (9.1%); 297 (9.1%); 252 (9.1%); 218 (9.1%); 216 (9.1%); 91 (9.1%); 83 (9.1%)
11
278
280
422 (33.9%); 423 (18.5%); 420 (13.8%); 283 (9.4%); 282 (3.9%); 286 (3.1%); 348 (2.0%); 177 (1.2%)
254
281
422 (65.4%); 348 (22.4%); 351 (21.5%); 423 (11.2%); 282 (11.2%); 284 (8.4%); 365 (7.5%); 345 (5.6%); 434 (4.7%); 297 (3.7%); 405 (2.8%); 286 (2.8%); 283 (2.8%); 280 (1.9%)
107
282
283 (43.1%); 284 (17.7%); 281 (9.2%); 286 (7.7%); 280 (7.7%); 348 (6.9%); 422 (6.2%); 346 (3.1%); 344 (3.1%); 436 (1.5%); 297 (1.5%)
130
283
285 (29.5%); 250 (17.6%); 177 (10.7%); 282 (10.5%); 436 (8.4%); 348 (8.1%); 99 (7.9%); 437 (6.6%); 179 (6.6%); 422 (5.3%); 286 (4.9%); 280 (4.5%); 405 (3.8%); 434 (3.4%); 420 (3.4%); 433 (2.4%)
365 (0.2%); 345 (0.2%); 297 (0.2%); 164 (0.2%)
533
284
422 (38.3%); 348 (21.7%); 286 (14.3%); 282 (13.1%); 351 (10.9%); 287 (10.3%); 365 (8.0%); 434 (5.1%); 297 (5.1%); 281 (5.1%); 423 (3.4%); 405 (2.3%); 252 (1.7%); 436 (1.1%)
175
285
283 (58.6%); 250 (18.7%); 348 (11.2%); 177 (11.2%); 286 (10.1%); 436 (8.6%); 437 (6.0%); 99 (5.6%); 179 (4.9%); 434 (4.5%); 422 (2.6%); 405 (2.2%); 433 (1.5%); 345 (1.5%); 420 (1.1%)
268
286
285 (26.0%); 283 (25.0%); 284 (24.0%); 287 (23.1%); 282 (9.6%); 422 (8.7%); 280 (7.7%); 348 (6.7%); 297 (3.8%); 179 (3.8%); 436 (2.9%); 420 (2.9%); 344 (2.9%); 281 (2.9%); 251 (2.9%); 250 (2.9%); 423 (1.9%); 404 (1.9%); 346 (1.9%); 99 (1.9%)
104
287
286 (33.3%); 284 (25.0%); 251 (19.4%); 422 (8.3%); 345 (2.8%); 250 (2.8%); 351 (1.4%); 348 (1.4%); 179 (1.4%); 99 (1.4%)
72
291
292
293
294
295
296
297 (38.6%); 404 (18.9%); 234 (12.4%); 299 (3.4%); 420 (2.1%); 302 (2.1%); 348 (1.7%); 232 (1.3%)
233
297
422 (19.0%); 296 (16.5%); 365 (12.2%); 351 (11.5%); 348 (10.6%); 252 (7.9%); 404 (7.7%); 298 (5.7%); 250 (4.0%); 437 (3.5%); 420 (3.3%); 302 (3.3%); 99 (3.1%); 434 (2.9%); 84 (2.4%); 234 (2.2%); 303 (2.0%); 224 (2.0%); 405 (1.8%); 326 (1.8%); 433 (1.6%);
283 (0.2%); 277 (0.2%); 179 (0.2%); 91 (0.2%); 89 (0.2%)
547
298
301 (42.8%); 85 (32.2%); 303 (29.2%); 84 (23.3%); 234 (20.3%); 216 (14.8%); 297 (13.1%); 365 (5.1%); 351 (5.1%); 366 (4.7%); 349 (4.7%); 218 (4.7%); 233 (2.1%); 300 (1.7%); 424 (1.3%); 302 (1.3%); 83 (1.3%)
236
299
234 (28.2%); 301 (24.4%); 233 (12.8%); 300 (10.3%); 296 (10.3%); 349 (1.3%); 298 (1.3%)
78
300
301 (45.3%); 299 (15.1%); 297 (13.2%); 303 (7.5%); 298 (7.5%); 85 (7.5%); 346 (3.8%); 216 (3.8%); 349 (1.9%); 348 (1.9%); 302 (1.9%); 296 (1.9%); 234 (1.9%)
53
301
298 (32.9%); 85 (26.4%); 234 (25.7%); 303 (22.8%); 233 (8.8%); 300 (7.8%); 216 (6.8%); 299 (6.2%); 84 (4.6%); 349 (2.9%); 297 (1.6%); 365 (1.3%)
307
302
347 (23.9%); 303 (19.3%); 297 (16.5%); 296 (4.6%); 346 (3.7%); 234 (3.7%); 404 (2.8%); 301 (2.8%); 298 (2.8%); 85 (2.8%)
109
303
85 (30.2%); 301 (23.7%); 298 (23.4%); 216 (13.9%); 349 (10.5%); 234 (8.5%); 302 (7.1%); 84 (6.8%); 347 (5.4%); 297 (3.7%); 351 (2.4%); 83 (2.4%); 233 (1.7%); 365 (1.4%); 300 (1.4%); 426 (1.0%); 424 (1.0%); 366 (1.0%); 350 (1.0%); 218 (1.0%)
295
304
305
306
307
308
309
310
311
320
321
322
326
365 (45.8%); 297 (41.7%); 422 (16.7%); 440 (12.5%); 405 (12.5%); 434 (8.3%); 424 (8.3%); 433 (4.2%); 351 (4.2%); 284 (4.2%); 252 (4.2%); 224 (4.2%)
24
327
328
329
330
331
332
333
334
335
336
337
344
346 (23.8%); 345 (21.4%); 348 (9.5%); 297 (9.5%); 282 (4.8%); 286 (3.6%); 422 (2.4%); 349 (1.2%); 284 (1.2%); 281 (1.2%)
84
345
422 (24.6%); 348 (22.9%); 344 (15.3%); 251 (14.4%); 346 (8.5%); 297 (5.9%); 250 (5.9%); 281 (5.1%); 285 (3.4%); 365 (1.7%); 351 (1.7%); 349 (1.7%); 287 (1.7%)
118
346
344 (22.5%); 348 (15.7%); 345 (11.2%); 297 (10.1%); 251 (6.7%); 349 (4.5%); 302 (4.5%); 282 (4.5%); 347 (3.4%); 422 (2.2%); 365 (2.2%); 351 (2.2%); 300 (2.2%); 286 (2.2%); 218 (1.1%)
89
347
302 (25.5%); 349 (24.5%); 350 (20.6%); 303 (15.7%); 83 (10.8%); 297 (7.8%); 365 (4.9%); 422 (3.9%); 351 (3.9%); 346 (2.9%); 348 (2.0%); 218 (2.0%)
102
348
422 (34.0%); 351 (14.5%); 297 (13.8%); 283 (10.2%); 284 (9.0%); 285 (7.1%); 404 (6.7%); 345 (6.4%); 281 (5.7%); 250 (5.5%); 420 (5.0%); 434 (4.3%); 423 (3.8%); 349 (3.8%); 346 (3.3%); 251 (3.1%); 99 (2.9%); 282 (2.1%); 365 (1.9%); 344 (1.9%); 286 (1.7%);
420
349
351 (27.0%); 303 (14.0%); 216 (12.2%); 347 (11.3%); 350 (10.8%); 85 (9.0%); 348 (7.2%); 83 (6.8%); 365 (5.9%); 84 (5.4%); 298 (5.0%); 301 (4.1%); 422 (2.3%); 218 (2.3%); 346 (1.8%); 297 (1.8%); 234 (1.8%); 107 (1.8%)
222
350
83 (40.1%); 349 (14.4%); 347 (12.6%); 84 (7.2%); 216 (6.6%); 303 (1.8%); 85 (1.8%); 351 (1.2%); 298 (1.2%)
167
351
365 (30.4%); 422 (12.8%); 297 (9.4%); 348 (9.1%); 349 (8.9%); 218 (4.3%); 84 (4.0%); 281 (3.4%); 83 (3.0%); 284 (2.8%); 298 (1.8%); 424 (1.6%); 436 (1.2%); 303 (1.0%)
440 (0.1%); 326 (0.1%); 301 (0.1%); 287 (0.1%); 282 (0.1%); 251 (0.1%); 179 (0.1%); 140 (0.1%)
671
352
353
354
356
357
358
359
365
351 (41.0%); 297 (13.5%); 84 (9.5%); 422 (9.1%); 218 (7.4%); 224 (7.2%); 366 (5.0%); 83 (3.6%); 252 (3.2%); 434 (3.0%); 284 (2.8%); 436 (2.6%); 349 (2.6%); 440 (2.4%); 424 (2.4%); 298 (2.4%); 326 (2.2%); 405 (1.8%); 234 (1.8%); 348 (1.6%); 281 (1.6%); 107
497
366
84 (77.6%); 365 (51.0%); 218 (30.6%); 298 (22.4%); 107 (22.4%); 234 (16.3%); 351 (8.2%); 216 (8.2%); 303 (6.1%); 301 (6.1%); 297 (6.1%); 426 (4.1%); 349 (4.1%); 85 (4.1%); 424 (2.0%)
49
367
368
380
381
382
383
387
389
390
391
392
393
394
395
396
399
400
401
402
403
405 (37.8%); 432 (20.0%); 420 (12.2%); 434 (5.6%); 404 (2.2%); 167 (1.1%); 165 (1.1%)
90
404
420 (48.6%); 296 (10.5%); 297 (10.0%); 348 (6.7%); 422 (6.0%); 405 (5.2%); 434 (5.0%); 432 (3.8%); 232 (3.3%); 423 (1.7%)
420
405
420 (45.4%); 434 (12.1%); 422 (10.6%); 403 (10.0%); 404 (6.5%); 283 (5.9%); 99 (5.0%); 432 (2.9%); 297 (2.9%); 365 (2.7%); 285 (1.8%); 284 (1.2%); 179 (1.2%)
339
408
409
410
411
412
413
414
415
416
420
404 (24.8%); 422 (19.4%); 405 (18.7%); 434 (5.5%); 280 (4.2%); 432 (3.0%); 348 (2.5%); 297 (2.2%); 283 (2.2%); 99 (1.5%); 423 (1.3%); 403 (1.3%); 232 (1.2%)
437 (0.1%); 436 (0.1%); 349 (0.1%); 179 (0.1%)
824
421
422
420 (15.6%); 348 (13.9%); 297 (10.1%); 423 (8.4%); 351 (8.4%); 280 (8.4%); 281 (6.8%); 284 (6.5%); 365 (4.4%); 250 (3.9%); 405 (3.5%); 345 (2.8%); 283 (2.7%); 99 (2.7%); 404 (2.4%); 252 (2.3%); 434 (2.1%); 437 (1.9%); 251 (1.5%)
346 (0.2%); 344 (0.2%); 298 (0.2%); 83 (0.2%); 426 (0.1%); 303 (0.1%); 277 (0.1%); 177 (0.1%)
1027
423
422 (67.7%); 280 (37.0%); 348 (12.6%); 281 (9.4%); 420 (8.7%); 434 (7.9%); 404 (5.5%); 297 (4.7%); 284 (4.7%); 283 (3.1%); 436 (2.4%); 405 (1.6%); 286 (1.6%); 99 (1.6%)
127
424
365 (36.4%); 351 (33.3%); 426 (27.3%); 297 (21.2%); 218 (21.2%); 84 (15.2%); 422 (12.1%); 303 (9.1%); 298 (9.1%); 440 (6.1%); 434 (6.1%); 326 (6.1%); 405 (3.0%); 366 (3.0%); 277 (3.0%); 234 (3.0%); 224 (3.0%); 216 (3.0%); 85 (3.0%)
33
425
426
424 (60.0%); 218 (40.0%); 351 (26.7%); 303 (20.0%); 297 (20.0%); 84 (20.0%); 366 (13.3%); 365 (13.3%); 298 (13.3%); 440 (6.7%); 422 (6.7%); 85 (6.7%)
15
427
428
429
430
432
167 (14.3%); 434 (12.6%); 165 (12.6%); 420 (10.9%); 403 (7.8%); 404 (7.0%); 405 (4.3%); 232 (2.2%)
230
433
434 (35.2%); 435 (11.9%); 250 (10.1%); 437 (9.6%); 252 (8.7%); 99 (7.2%); 164 (6.3%); 167 (5.7%); 166 (4.2%); 283 (3.9%); 297 (2.7%); 285 (1.2%)
335
434
433 (23.7%); 436 (9.3%); 420 (9.1%); 435 (8.9%); 405 (8.2%); 252 (8.0%); 437 (7.6%); 250 (6.6%); 432 (5.8%); 422 (4.4%); 404 (4.2%); 348 (3.6%); 283 (3.6%); 99 (3.4%); 297 (3.2%); 365 (3.0%); 285 (2.4%); 423 (2.0%); 284 (1.8%); 351 (1.2%); 251 (1.2%); 403
497
435
434 (33.6%); 433 (30.5%); 436 (9.9%); 437 (6.1%); 250 (6.1%); 99 (6.1%); 164 (1.5%)
131
436
434 (21.3%); 283 (20.8%); 285 (10.6%); 250 (8.8%); 177 (6.9%); 435 (6.0%); 365 (6.0%); 437 (4.6%); 351 (3.7%); 99 (3.7%); 179 (3.2%); 422 (2.8%); 348 (2.3%); 423 (1.4%); 405 (1.4%); 286 (1.4%)
216
437
250 (38.0%); 434 (14.7%); 283 (13.6%); 99 (13.6%); 433 (12.4%); 252 (8.1%); 422 (7.4%); 297 (7.4%); 285 (6.2%); 179 (4.3%); 436 (3.9%); 435 (3.1%); 348 (1.9%); 177 (1.9%); 167 (1.9%); 405 (1.2%); 166 (1.2%)
258
438
439
440
365 (66.7%); 297 (27.8%); 422 (16.7%); 326 (16.7%); 434 (11.1%); 424 (11.1%); 224 (11.1%); 426 (5.6%); 351 (5.6%); 252 (5.6%); 84 (5.6%)
18
441
442
443
444
445
446
447
448
449
450
454
455
456
457
458
459
464
465
466
467
472
473
474
475
476
477
478
479
HiddenTables
For internal use
Neighbour List Verification
All cells belonging to that site
The first perimeter of cells
Cell for which the neighbour list is being defined
Neighbours
Yes
Complete visual inspection of neighbour list
Does list include all cells belonging to that site and the first perimeter of cells
Continue from Analysis (slide 49)
Finish
Subsequent manual tuning of neighbour list
NO
For internal use
Summary
Dominance, Coverage, are all issues for RF optimisation
There are a range of tools that can be used to identify network problems
Automated optimisation tools have been developed to help with RF optimisation
Neighbour management is key for good RF performance
* © Nokia Siemens Networks Presentation / Author / Date
For internal use
RAS051_v1.0
Kirsi Teräväinen
NBR Not Seen
Mean Attempted180.990
Mean Served
Handover100.29563.28%
Mean Attempted177.995
Mean Served
Mean In Softer Handover16.4259.63%
A5-1 Distribution of Best Server RSCP and Ec/No (First Drive)
-30
-25
-20
-15
-10
-5
0
5
-130-120-110-100-90-80-70-60-50-40-30