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Drive Test and Radio

optimization for UMTS/GSM

NetworksBMCSAT Company


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www.bmcsat.com 2

Contents

Introduction

Site verification of radio parameters Network performance checking in static positions

Network performance checking in mobile positions

Area Drive test verification

Drive test analysis & recommendations

Case Studies


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Our company specialized in radio telecommunication puts underyour disposition our skills and experiences concerning:

- Site verification radio parameters

- Drive test data

- Analysis and recommendations in order to optimize the

performance of our network

We perform testing for 2G and 3G networks (GSM/GPRS/EDGE/UMTS/R99/HSDPA/HSUPA)

We use Nemo tools in drive test data

Introduction


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Site verification of radio parameters (1)

Hardware Checking

For each cell, we choose one location close the BTS. The target Cellshould be in the Light of Sight.

The following items should be checked approximately:

Antenna Azimuth

Antenna Tilt

Note: This test should be repeated for each Sector


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Network Checking

For 2G Network Check, we could collect the information below using

an IDLE UE locked in 2G mode : Frequency BCCH BSIC Cell ID

LAC/RAC For 3G Network Check, we may collect the information below using

an IDLE UE locked in 3G mode : Frequency Primary Scrambling Code Cell ID LAC/RAC

Site verification of radio parameters (2)


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Network performance checking in static positions

For 2G Service Check, we could do the following tests using a UElocked in 2G mode

Mobile originated calls, Mobile terminated calls, EDGE FTPDownload, EDGE FTP Upload

For 3G Service Check, we are able to do the following tests using aUE locked in 3G mode

AMR originated call, AMR terminated call R99 FTP download, R99 FTP Upload HSDPA FTP download and HSUPA FTP Upload


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For 2G Service Check, we use 2 UEs and one GPS in order toexecute the long and short calls tests.

For 3G Service Check, we use 2 UEs in order to execute the AMRlong and short calls and data transfer.

Note: the test should be made Clockwise and anti clockwise

Network performance checking in mobile positions


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Area Drive test verification

After site verification of radio parameters, its possible to perform Drivetest in global area in order to optimize the radio performance (detectcall drops, Handover Failures, Call set up Failures and resolve theseproblems)

For 2G Service Check, the following tests will be considered: 2G Long and Short call

Automatic Long call (2G and 3G) EDGE FTP Download MOS

For 3G Service Check, the following tests will be considered: 3G short and Long call R99 FTP download HSDPA & HSUPA FTP transfer MOS


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Drive test analysis & recommendations

Statistics collections 2G & 3G Analysis

2G & 3G recommendations & solutions about radio problem

- Design tuning (Az, Tilt,)

- Add neighbors / - Frequencies modifications


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Case Studies

2G Analysis: Quality, Signal Level, Handover Failures and Call drops


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Case Studies

3G Analysis: EcNo, RSCP, Handover Failures and Call drops


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Contacts

For more information you can contact us at the

following:

Electronic addresses www.bmcsat.com

[email protected]

Phone number +216 25 306 116


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