FIRST NETWORK NODE, METHOD THEREIN, COMPUTER PROGRAM AND COMPUTER-READABLE MEDIUM COMPRISING THE COMPUTER PROGRAM FOR DETECTING OUTAGE OF A RADIO CELL

摘要

A method performed by a first network node (110) for detecting outage of a radio cell (130) served by a second network node (120). The first network node (110) and the second network node (120) operate in a wireless communications system (100). The first network node (110) determines a number of incoming handovers for the radio cell (130) of the second network node (120) in a first measurement period. The first network node (110) then determines whether the radio cell (130) is in outage, based on whether the determined number of incoming handovers in the first measurement period is under or equal to a threshold.