Hello expert
I’m a newbie in 4G optimization. Currently i’m working on the main cause of Erab drop. I’ve checked and found it’s as a result of MMe inducing this. While troubleshooting further, i checked for any alarm but no issue, checked ressource congestion, S1 link and X1 link but still no issue. Please can someone provide other things to investigate further on this main cause of this high erab drop? And incase it can be due to coverage or quality, what are the main kpi’s and counters to check for that.Vendor is ericsson. Thanks in advance
pmErabRelAbnormalEnbAct – ERAB Releases by ENB
pmErabRelAbnormalMMEAct – ERAB Releases by MME
pmErabRelAbnormalEnbActCdt - due to down time
pmErabRelAbnormalEnbActUeLost - due to UE lost
pmErabRelAbnormalEnbActHpr - due to HO prep stage
pmErabRelAbnormalEnbActHo - due to HO exe stage
pmErabRelAbnormalEnbActTnFail - due to S1, X2 down or transport unavailability
pmErabRelAbnormalEnbActPe - due to pre-emption