Can PGW/GGSN change during handover in LTE or 3G network?

Question

I have worked in LTE technology and observed the data rate through LTE network. We know , LTE deployment is on going and it will take few years to roll out completely in India. When a LTE UE attaches to network and handover to UMTS due to mobility then is there any change in data rate ? If yes, then how this change is communicated to UE. I mean to say what signalling messages exchange in network ?

Answer 1

Hi,

As per my understanding PGW is based on service what you choose, even after HANDOVER UE will be in same service , so no need to change the PGW. PGW deployment is operator specific, If operator deploy two PGW for same service , and target MME is not under source PGW then there is a chance of changing PGW. Most of the operator will have single PGW for single service.