nsn handover success rate improvement plan

For internal use only1 © Nokia Siemens Networks

HOSR Enhancement Plan

NSN NPO Team – Airtel Malawi17th March

• Frequency plan & Neighboring Audits.

• BTS/ Handover/ Power Control parameters auditing.

• External Definitions on BSC/MSC

• Austallia Weekly optimization report – recommended actions.

• Drive test for problematic cells.

• TCH availability.

• TCH Assignment Success Rate problems.

• Missing handover KPI’s (problem’s escalated & being followed-up)

Plan & Progress

Freq plan is submitted for BSC03/04 – NB audit is done for all.

Listed of audited/tuned parameters is listed next slide.

Progressing - Need Airtel’s support as well.

Being analyzed – received 16th March.

Started with Mangotchi BSC

Continuous support is needed from Airtel’s team

Under investigation

TT is pending on Airtel’s side.

Parameters’ Audited

Parameter Expected

EBSPWRC Enable the Adaptive BS Power Control algorithm to reduce the interference and Improve the Quality and Drops

EMSPWRC Enable the Adaptive MS Power Control algorithm to reduce the interference and Improve the Quality and Drops

PAVRLEV Correcting the Averaging window to the recommended Value

PAVRQUAL Correcting the Averaging window to the recommended Value

LOWTLEVD Adjusting the Power Control Window to an aggrissive setting to reduce the Interference and Improve the Quality and Drops

UPTLEVD Adjusting the Power Control Window to an aggrissive setting to reduce the Interference and Improve the Quality and Drops

LOWTLEVU Adjusting the Power Control Window to an aggrissive setting to reduce the Interference and Improve the Quality and Drops

UPTLEVU Adjusting the Power Control Window to an aggrissive setting to reduce the Interference and Improve the Quality and Drops

LOWTQUAD Adjusting the Power Control Window to an aggrissive setting to reduce the Interference and Improve the Quality and Drops

UPTQUAD Adjusting the Power Control Window to an aggrissive setting to reduce the Interference and Improve the Quality and Drops

LOWTQUAU Correcting the Threshold values to the recommended values

UPTQUAU Correcting the Threshold values to the recommended values

EBSPWCR Correcting the value according to the Hopping type

THORQST Recommended Value, to Improve the HOSR

HOAVLEV Recommended averaging window size

HOAVQUAL Recommended averaging window size

HOAVPWRB Recommended Value

HOLTHLVUL Initiate the RXLEV HO at a better value (-100 dBm) to improve the HOSR and Drops

HOLTHQUDL Initiate the QUAL HO at a better C/I (9) to improve the HOSR and Drops

HOLTHQUUL Initiate the QUAL HO at a better C/I (9) to improve the HOSR and Drops

HORXLVDLI Insure that the Traffic in Inner (1800) area is at acceptable level, and push more traffic to 1800

HORXLVDLO Insure that the Traffic in Inner (1800) area is at acceptable level, and push more traffic to 1800

EFULHO Enable Fast Uplink HO to Imrove the TCH Drops

THLEVFULHO Change the FUHO threshold to insure the feature will work at the proper thresholds

ELEVHOM Enable the Level HOM to Improve the HOSR and Drops

ENAQUALEVHOM Enable the Quality HOM to Improve the HOSR and Drops

LEVHOM Adjust the Level HOM to 4 dB to Improve the HOSR

QUALLEVHOM Adjust the Quality HOM to 4 dB to Improve the HOSR

RDLNKTO Improve call drop KPIs

4 © Nokia Siemens Networks - Airtel Zambia Re-Branding Project Status/ Harry Kastanas / 30th September 2010

Thank you

Justin Bailey (PM)