How UE will be connected to Network after power saving mode

Question

UE goes in power saving mode after expiry of timer t3324 then ue is not reachable from network but UE is registered in the the network . What is the procedure to contact with network ? If timer t3324 is 1hr , UE does not listen paging in 1hr interval then how ue will start using data ?

Answer 1

Hi Rakesh, I don't have depth knowledge in Power Saving Mode (PSM) but would like to share my learning so far in this area.
When UE moves from connected to idle mode, it stars T3324 and UE remains reachable through paging from network side but after expiry of T3324, UE goes into power saving mode. In power saving mode, however UE can't be reach through paging but UE can initiate data transmission since UE is already registered with network.