LTE handover fails: There are parts in LTE handover:
1- Handover Preparation
2- Handover Execution
**1-HO Fails reasons in preparation parts are below:**
if HO preparation fails 100%, MME pool different in source and target
Target cell is overload
Target cell unavailable
TAC not defined on site
License/software issue
2-Handover execution fails
PCI conflict
Target exceeds cell range
Target is sleeping cell
Target having high uplink interference
Poor RF condition
Alarms on Target cell