Patent ID: 8660575

Claim:
A method of updating a location of a mobile terminal, the method comprising: receiving, by the mobile terminal, a first assignment of at least one first tracking area within which the mobile terminal is allowed to move without performing a tracking area update, the at least one first tracking area comprising a first group of one or more communication cells; receiving, by the mobile terminal, broadcast information indicating at least one second tracking area within which the mobile terminal is allowed to move without performing a tracking area update, the at least one second tracking area comprising a second group of one or more communication cells; determining, by the mobile terminal, that a new tracking area update is required if any of the at least one first tracking area is not indicated by the broadcast information; and when it is determined that the new tracking area update is required, performing, by the mobile terminal, a tracking area update process from within the assigned at least one first tracking area and outside of other tracking areas and transmitting reporting information to a core network, the reporting information indicating an identity of each of a predefined number of most recent communication cells on which the mobile terminal has camped before performing the tracking area update process.