Does an UE initiate handover procedure due to its mobility only or any other reasons could be ?

Question

5G: Beam level mobility does not require handover,but if the target beam is on another cell will it require handover?

Answer 1

First, I think the handover procedure is initiated by the eNodeB not the UE side. Normally, in the LTE network, eNodeB based on UE's feedback/blind mobility to decide whether trigger UE's mobility, such as event measurement, period measurement. Also I think there is another way that is SRVCC in the case of LTE not support VoLTE.

Answer 2

Not only due to mobility. EnodeB may configure the UE to Send periodic measurement reports. Based on the measurement reports, EnodeB can decide the handover if it finds a stronger cell than the serving cell.