Tracking Area Updates in an LTE Network

LTE Tracking Area Update signaling flow describes how mobiles keep the network updated about their location. A Tracking Area Update takes place if: UE detects it has entered a new Tracking Area that is not in the list of TAIs that the UE registered with the network; the periodic Tracking Area update timer has expired; UE was in UTRAN PMM_Connected state (e.g. URA_PCH) when it reselects to E…