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View Full Version : TOP 10 3G RAN Optimisation Actions



rfoptman
2015-04-04, 06:59 PM
This document can be used as network pre-launch optimisation checklistThe aim of this document is to summarize how to:


Investigate the reasons for poor 3G radio performance (call set-up failure, call drop),
Describe the potential reasons
Propose actions to improve performance (as top 10 optimisation actions)

Both common and service specific (CS AMR, CS Video and PS)



This document can be used as network pre-launch optimisation checklist.
1. Introduction................................................................................................................ 4
2. Network planning rules for optimum performan................................................................... 4
3. Network health check................................................................................................... 5
3.1 BTS Alarms causing Blocked cells.................................................................................. 5
3.1.1 Fault in O&M and DSP SW interface............................................................................ 5
3.1.2 ATM overflow......................................................................................................... 5
3.1.3 DSC-bus failure....................................................................................................... 6
3.1.4 Unit SW download failed........................................................................................... 6
3.1.5 WSP R-Bus Error..................................................................................................... 6
3.1.6 No Table of contents Connection to Unit..................................................................... 6
3.2 Software and Parameter checks.................................................................................. 6
3.3 Neighbour Consistency checks..................................................................................... 6
3.4 Cell load checks........................................................................................................ 7
3.5 RAN Counter and KPI.................................................................................................. 7
3.5.1 Cell Avail............................................................................................................... 7
3.5.2 RRC p and access complete ratio............................................................................... 7
3.5.3 setup and access complete ratio............................................................................... 7
3.5.4 RAB drop ratio........................................................................................................ 8
3.6 UE Performance check................................................................................................ 8
4. Performance check with Field Measurements..................................................................... 8
5. Top 10 optimisation activities to improve call performance................................................... 9
5.1 Common Call Performance Issues.................................................................................. 9
5.2 Voice (AMR) specific performance Issues...................................................................... 11
5.3 Video Call Performance Issues.................................................................................... 12
5.4 PS Call Performance Issues........................................................................................ 12
5.5 ISHO performance.................................................................................................... 15
6. Optimisation Tools...................................................................................................... 15
6.1 Nokia Application Launcher (AL).................................................................................. 15
6.1.1 RNW Object Browser.............................................................................................. 15
6.1.2 RNW Online Management......................................................................................... 16
6.2 Nokia Plan Editor...................................................................................................... 16
6.3 EOS Reporting Solution (RS)....................................................................................... 17
6.4 NetAct Reporter....................................................................................................... 17
6.5 Field Measurement Tools (FMT)................................................................................... 17
6.5.1 RF scanner........................................................................................................... 18
6.5.2 NEMO TOM Drive Test tool....................................................................................... 18
6.6 Actix Analysis tool.................................................................................................... 19
7. References................................................................................................................. 20
8. Glossary..................................................................................................................... 21

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