Patent ID: 8428029

Claim:
A mobile telecommunications system, comprising: a network core; at least one mobile terminal; a plurality of telecommunications nodes for providing radio resources to the mobile terminal when registered therewith, each node controlling a plurality of cells for communicating with the mobile terminal, wherein the mobile terminal is operable to change from registration with a first of said nodes to registration with a second of said nodes; and an information-providing device that provides the second of said nodes with information indicative of interaction of the mobile terminal with the first node, wherein the first and second nodes each have a timer which expires after a time period from a triggering event, wherein the expiry of the node timer causes the node to notify the core network that the terminal has entered an idle communication state, wherein, when the node with which the mobile terminal is registered is changed from a first node to a second node after the triggering event but before expiry of the timer of the first node, an indication of the current timer value of the first node is provided to the second node, as said information indicative of interaction of the mobile terminal with the first node, and the time period after which the timer of the second node expires is modified in accordance therewith.