LTE: DRX, eDRX and PSM are mutually exclusive or not?

Question

Want to know whether DRX, eDRX and PSM are mutually exclusive.

I understand that either of the three will be negotiated by the UE. So at any time only one mechanism is used by UE to save power.

Answer 1

Hi,

Yes you cannot use all at a time, eDRX is evolved from DRX,PSM is for long time sleeping so you dont need DRX while UE in PSM mode.