cote_d_ivoire_orange_rf_optimization_detail_report-cocodyc2_20150324.pdf
TRANSCRIPT
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Orange CI RF ANALYSIS AND OPTIMIZATION REPORT
ABIDJAN Cocody Cluster2 Huawei RF team
24th March 2015. All rights reserved
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Orange CI Drive Test Report
Division: Abidjan Cocody
Test Route: Cocody
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Contents
INTRODUCTION .......................................................................................................................................... 3 1- FINDINGS AND RECOMMENDATIONS: ................................................................................................. 3 1.1 TEST ROUTE OVERVIEW: ..................................................................................................................... 3 1.2 MS RSCP PLOT: .................................................................................................................................... 4 1.3 MS EC/NO PLOT ................................................................................................................................... 5 1.4 MS DL INTERFERENCE PLOT: ............................................................................................................... 6 1.5 MS PSC PLOT: ...................................................................................................................................... 7 1.6 DT KPI SUMMARY ................................................................................................................................. 7 1.7 BAD PATCHES ...................................................................................................................................... 8 1.8 ACTION SUMMARY............................................................................................................................. 15 1.9 CONCLUSION ..................................................................................................................................... 16
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Orange CI Drive Test Report
Division: Abidjan Cocody
Test Route: Cocody
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I) VOICE SERVICE TEST
Introduction
The drive test route covers Cocody cluster2 and was driven the 06th March 2015.
1- Findings and Recommendations:
1.1 Test Route Overview:
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Test Route: Cocody
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1.2 MS RSCP Plot:
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1.3 MS Ec/No Plot
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Test Route: Cocody
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1.4 MS DL interference plot:
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1.5 MS PSC Plot:
1.6 DT KPI Summary
KPI (2G) Short Call
Outgoing Call Setup Success Rate (CSSR) 96.88
Call Drop Rate (CDR) 1.62
Handover Success Rate (HOSR) 100
RSCP (dbm) >= -95dbm and EcIo>= -12 72.13
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Orange CI Drive Test Report
Division: Abidjan Cocody
Test Route: Cocody
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1.7 BAD PATCHES
A) BAD PATCHE 1
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Events: Bad patch (Poor quality)
Causes: KAMENA Sector2 overshooting
Recommendations: Adjust the downtilt of KAMENA_2200-2 from 4 to 8; the downtilt of
OSCAR_2200-1 should be change from 4 to 6, ALLABRA_2200-1&2 from 6 to 8,
FLORALIE_2200-3 from 5 to 8, COTEAUX_2200-2 from 5 to 7, EMORAUDE_2200-2 from 3 to
6, ANOMA_2200-1 from 7 to 9, VEGAS_2200-1 from 8 to 9, VEGAS_2200-2 from 4 to 7,
STE_FAMILLE_2200-2 from 9 to 10and BONHEUR_2200-2 from 2 to 4.
Add the following cells to ALLABRA_2200-12 neighbors: ST_VIATEUR_2200-22,
SYNINFO_2200-22 and MEECI_2200-22.
BAD PATCHE 2
Events: Bad patch (Poor Coverage)
Causes: Pilot pollution and poor coverage
Recommendations: Adjust COTEAUX_2200-3 tilt from 5 to 8 to make it dominate; modify
ALUKO_2200-1 and SYNINFO_2200-2 tilt from 6 to 8;
Down tilt Anono_2200-11 by 3 degree and down tilt Anoma_2200-11 by 2 degree.
B) BAD PATCHE 3
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Orange CI Drive Test Report
Division: Abidjan Cocody
Test Route: Cocody
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Events: Bad patch (Poor Quality)
Causes: Pilot Pollution
Recommendations: CAMELIA_2200-3 tilt should be adjust from 6 to 8
Add AKOUEDO_2200-31 to AKOUEDO_2200-21 as neighbor cell.
Downtilt by 2 ZEPHIR_2200-2&3, MPOUTO_2200-1, BERVERLY_2200-1&2
Down tilt Akouedo_2200-21 and Akouedo_2200-31 by 1 degree
C) BAD PATCHE 4
Events: Bad patch (Poor quality)
Causes: Overshooting, pilot pollution
Recommendations: Down tilt ST_ELYSEE_2200-12 and FROBEL_2200-12 by 2degree
Add Akouedo_2200-32 to Riviera_Extension_2200-22
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Orange CI Drive Test Report
Division: Abidjan Cocody
Test Route: Cocody
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BAD PATCHE 5
Events: Bad patch (Poor quality)
Causes: Overshooting and pilot pollution
Recommendations: Increase ZEPHIR_2200-32 power by 2dbm
Downtilt TERRAFRIC_2200-2, OHINENE_2200-1 and SAMARIT_2200-1 by 2.
D) BAD PATCHE 6
Events: Bad patch (Bad quality)
Causes: Non dominate and overshooting
Recommendations: The Downtilt of KAMENAN sector2 and ANOMA sector1 can solve the
problem
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Test Route: Cocody
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E) BAD PATCHE 7
Events: Bad patch (Bad quality)
Causes: Overshooting
Recommendations: Increase INJS_2200-2 electrical tilt by 2
F) BAD PATCHE 8
Events: Bad patch (Bad quality)
Causes: Pilot pollution
Recommendations: Change the downtilt of OSCAR_2200-2&3 from 4 to 6. Decrease the pilot
power of RIVIERA_2200-22 and RIVIERA_2200-21 by 3dB.
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Orange CI Drive Test Report
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Test Route: Cocody
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G) BAD PATCHE 9
Events: Bad patch (Bad quality)
Causes: Overshooting
Recommendations: GANDOUR_2200-1 downtilt should be set to 8 instead of 6 and
MESANO_2200-1 mechanical tilt set to 2.
H) BAD PATCH10
Events: Bad patch (Poor coverage)
Recommendations: Sector 3 of COTEAUX will improve the coverage after the downtilt.
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Test Route: Cocody
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I) BAD PATCH11
Events: Bad patch (Poor coverage)
Recommendations: The power of Zephir Sector 3 will improve the coverage.
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Test Route: Cocody
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1.8 Action Summary
ACTION POINT
SITE NAME Action Owner Time Line
Status
A KAMENA
Adjust the downtilt of KAMENA_2200-2 from 4 to 8;
the downtilt of OSCAR_2200-1 should be change from
4 to 7, ALLABRA_2200-1&2 from 6 to 8,
FLORALIE_2200-3 from 5 to 8, COTEAUX_2200-2
from 5 to 7, EMORAUDE_2200-2 from 3 to 6,
ANOMA_2200-1 from 7 to 9, VEGAS_2200-1 from 8
to 9, VEGAS_2200-2 from 4 to 7,
STE_FAMILLE_2200-2 from 9 to 10and
BONHEUR_2200-2 from 2 to 4.
Add the following cells to ALLABRA_2200-12
neighbours: ST_VIATEUR_2200-22,
SYNINFO_2200-22, MEECI_2200-22
Add the following cells to KAMENA_2200-22
neighbours: MEECI_2200-22, VEGAS_2200-22,
RIVIERA_SELMER_2200-12 and
RIVIERA_SELMER_2200-22.
Huawei with
Orange permission
Open
B Adjust COTEAUX
Adjust COTEAUX_2200-3 tilt from 5 to 8 to make it
dominate; modify ALUKO_2200-1 and
SYNINFO_2200-2 tilt from 6 to 8;
Down tilt Anono_2200-11 by 3 and down tilt
Anoma_2200-11 by 2.
Huawei with
Orange permission
Open
C CAMELIA
CAMELIA_2200-3 tilt should be adjust from 6 to 8
Add AKOUEDO_2200-31 to AKOUEDO_2200-21 as
neighbour cell.
Downtilt by 2 ZEPHIR_2200-2&3, MPOUTO_2200-
1, BERVERLY_2200-1&2
Down tilt Akouedo_2200-2 and Akouedo_2200-3 by 1
Huawei with
Orange permission
Open
D AKOUEDO
Add ST_ELYSEE_2200-12 and FROBEL_2200-12 to
AKOUEDO_2200-22
Add AKOUEDO_2200-32 to AKOUEDO_2200-22
Huawei with
Orange permission
Open
E ZEPHIR and TERRAFRIC
Increase ZEPHIR_2200-32 power by 2dB
Downtilt TERRAFRIC_2200-2, OHINENE_2200-1
and SAMARIT_2200-1 by 2.
Huawei with
Orange permission
Open
F INJS Increase INJS_2200-2 elctrical tilt by 2
Huawei with
Orange permission
Open
G OSCAR and RIVIERA
Change the downtilt of OSCAR_2200-2&3 from 4 to
6. Decrease the pilot power of RIVIERA_2200-22 and
RIVIERA_2200-21 by 3dB.
Huawei with
Orange permission
Open
H GANDOUR and MESANO GANDOUR_2200-1 downtilt shoud be set to 8 instead
of 6 and MESANO_2200-1 mechanical tilt set to 2.
Huawei with
Orange permission
Open
I J K
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Orange CI Drive Test Report
Division: Abidjan Cocody
Test Route: Cocody
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Existing physical parameter New physical parameter
CELLS Azimuth Mech
Downtilt Elect
Downtilt Power Azimuth Mech
Downtilt Elect
Downtilt Power
KAMENA _2200-2
4
8
OSCAR _2200-1
4
7
ALLABRA_2200-1
6
8
ALLABRA_2200-2
6
8
FLORALIE_2200-3
5
8
COTEAUX _2200-2
5
7
COTEAUX _2200-3
5
8
EMORAUDE _2200-2
3
6
ANOMA_2200-1
7
9
VEGAS_2200-1
8
9
VEGAS_2200-2
4
7
STE_FAMILLE_2200-2
9
10
BONHEUR_2200-2
2
4
ALUKO_2200-1
6
8
SYNINFO_2200-2
6
8
CAMELIA _2200-3
6
8
MPOUTO _2200-1
8
10
BERVERLY _2200-1
3 3
5
BERVERLY _2200-2
2 6
4
ZEPHIR_2200-32/33
10
13 Increase power by 2dB
TERRAFRIC _2200-2
5
7
OHINENE _2200-1
4
6
SAMARIT _2200-1
5
7
INJS _2200-2
7
9
OSCAR _2200-2
4
6
OSCAR _2200-3
4
6
GANDOUR_2200-1
6
8
MESANO _2200-1
0
2
RIVIERA_2200-21/22
decrease power by 3dB
ANONO_2200-1
5
8
AKOUEDO_2200-2/3
5
6
1.9 Conclusion
The 3G network coverage is acceptable but the quality need to be improve by controlling the
downlink interference through implemention of the above recommendations. Another test will be perform after modification to confirm the result.
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HIGH RTWP ANALYSIS
The above trends for Agitel sector 3 shows that there is a background noise not perculiar to a frequency but to the sector itself which means we need to check for a generic source of intefernce. CONCLUSION: I suggest we have to neighbor audit for all the cells on the network one after the other to make sure there is no any missing neighbor or one way neighbor because at every missing neighbor it is seen as interference. At every interference detected by 3G network the active set will try to increase power in other to overcome this interference.