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A_PBGT_HO Trial Benchmark report

BSC KHB14

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Contents

INTRODUCTION ...................................................................................................................................... 3

TRIAL AREA ............................................................................................................................................ 4

RESULTS ................................................................................................................................................. 5

CALL DROP RATE: ............................................................................................................................................... 5

CALL DROP RATE (CAUSES): ................................................................................................................................. 6

HO PER CALL: .................................................................................................................................................... 6

TRAFFIC: ............................................................................................................................................................ 7

HANDOVER SUCCESS RATE: ................................................................................................................................... 7HANDOVER DISTRIBUTION: ................................................................................................................................... 8

DRIVE TEST ANALYSIS: ......................................................................................................................................... 9

CONCLUSION ........................................................................................................................................ 10

WAY FORWARD ................................................................................................................................... 10

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Mobily-Eastern Region-KSA 3/10A_PBGT_HO Trial Benchmark Report

INTRODUCTION

Parameter fine tuning of A_PBGT_HO is performed in Khobar urban area. The recommended change of the

parametric value from 8 to 10 is implemented on trial basis on all the cells of BSC KHB14. Following is the

benchmark report of KPIs and field measurements on the selected cluster. Due to the sites migration, the

below mentioned benchmark is compiled on the cluster/cell zone KPIs rather than on BSC level KPIs.

A_PBGT_HO description:

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TRIAL AREA

The BSC selected for the purpose of this trial is E355_KHB14. The parameter change implemented on allcells of the BSC.

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RESULTS

Call Drop Rate:

Call Drop Rate shown significant improvement from 0.35% to 0.33%.

Increase BSS drops

causing increase in

CDR

Increased external

interference

Increased external

interference

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Call Drop Rate (Causes):

5% improvement is observed in CDR Radio rate from an average value of 0.20% to 0.19%. CDR HO rate is

also improved from 0.15% to 0.14%.

HO per Call:

HO per call is reduced from 2.26 to 2.03 as expected from the trial implementation which increases the

PBGT HO window from 8 to 10.

Trial implementation

Trial implementation

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Traffic:

Traffic is in stable trend.

Handover success rate:

Handover success rate remains stable in the cluster.

Trial implementation

Trial implementation

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Handover distribution:

Handover distribution of Better cell HOs remains stable around 39% while Quality HOs shows 3.19%

increase from 5.06% to 5.23% which is within acceptable limits as PGBT HO window is increased in the trial.

Trial implementation

Trial implementation

Trial implementation

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Drive test Analysis:

DL Rxqual improvement is observed in drive test from an avg Rxqual of 1.4% to 0.9%.

SQI improvement is also observed from an average SQI of 25.5 to 27.4.

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CONCLUSION

Improvement is observed in DCR & HO per call as targeted in the trial. Tuning A_PBGT_HO value from 8 to 10 results in better PBGT handover decisions resulting in

reduced possibility of Call drop due to HOs or radio drop after HOs. This should also result in

improved user perception due to reduced number of unnecessary handovers.

Improvement is also observed in drive test measurements.

WAY FORWARD

Generalization of the parameter can be done in the BSCs where increased HO per call contributes inhigh call drop rate.