An Approach for Network Outage Detection from Drive-Testing Databases

Table 1

Structure of the MDT measurement.

Feature No.	Feature	Description
1	Time	Time stamp
2-3	Location	Latitude and longitude
4	Serving-cell info	CGI
5	RSRP	Serving-cell RSRP in dBm
6	RSRQ	Serving-cell RSRQ in dB
7–13	Three strongest intra-LTE neighbors	CGI and RSRP for each neighbor
14–20	Three best quality intra-LTE neighbors	CGI and RSRQ for each neighbor
21	Serving-cell wideband CQI	Indicator of wideband signal quality
22	Power headroom report	Available uplink transmission power