Research Article

An Approach for Network Outage Detection from Drive-Testing Databases

Table 4

Simulator parameters.

ParameterNotesValue

3GPP macrocell scenarioRegular cell layout57 sectors/19 BSs
Intersite distance1.75 km
Distance-dependent path lossMacro cell model [20]128.1 + 37.6 log10( )
BS Tx power46 dBm
Slow-fading standard deviation8 dB
Slow-fading correlationSite 0.5/Sector 1.0
Fast-fading profileTypical Urban
UE velocity3 km/h
UE placementUniformly distributed7 centremost sites
RSRP measurement period40 ms
RSRP/RSRQ MeasurementsL1 averaging window size200 ms
L3 filter coefficient4
MDT reportingPeriodicity500 ms
A3 event threshold3
Handover parametersA3 event time to trigger160 ms
Handover preparation time50 ms
Radio link failure monitoringQout threshold
Qin threshold
T310 timer
−8 dB
−6 dB
600 ms
Number of calls per simulation4200
Base-stations loadingFull loading in all cells100% RBs loaded
Diffusion parameter epsilon in (8)Scales the size of local neighborhood8
Embedded space dimensionNumber of right eigenvectors6