How does UE identify paging message and wakes up for receiving DL data?

UE receive paging Frame from UE PDCCH  channel then
UE decodes Paging from the PDSCH Resource Block within which the PAGING message is sent
If UE doesn't find it's own UE identity then it returns to monitor the Paging Occasion.
UE Identity ( S-TMSI and for abnormal IMSI)