Drive tests

Purpose

Drive tests of the air interface are performed to verify the quality of the operator’s services and to assess the real coverage of the network. The results obtained can also be used to calibrate the propagation models used in ONEPLAN for calculating coverage.

For

GSM/UMTS/LTE operators, contractors of operator
Equipment vendors
Regulators

Tasks

Evaluation of coverage
Evaluation of the quality of voice transmission
Evaluation of data transmission quality
Identification of problem areas in the network and preparation of recommendations for changing network parameters to improve quality indicators
Estimation of network parameters before and after optimization, expansion, modernization
Benchmarking

Measured parameters

CSSR – Call Setup Success Rate
DCR – Drop Call Rate
SQI
MOS, for example, using test phrases in Russian in accordance with GOST-R
Setup time
Data transfer rate GPRS, EDGE, HSPA +, LTE
RxLevel, RSCP, RSRP
C/I, Ec/No, RSRQ
RxQual
HOSR and others

Organization of the drive tests

Formation of routes for driving tests after analysis of statistics
Perform initial calculations of the initial mobile networks to identify problem areas of the coverage area

Measuring tools

TEMS Investigation
Universal network analyzer R & S TSMW and ROMES4 software
Measuring complexes VQuad-VQT (GL Communications Inc.)
Spectran Spectrum Analyzer (Aaronia AG)