Patent ID: 8855606

Claim:
An integrated circuit configured to control operation of a radio communication terminal apparatus, the integrated circuit comprising one or more processing devices configured to: send from the radio communication terminal apparatus a call establishment request to a radio communication base station apparatus; perform a radio connection between the radio communication terminal apparatus and the radio communication base station apparatus based on the call establishment request; receive a radio quality measurement configuration message from the radio communication base station apparatus, said radio quality measurement configuration message configuring the radio communication terminal apparatus to perform a radio quality measurement and to report the radio quality measurement to the radio communication base station apparatus for use in mobility control; after performing the radio connection and after receiving the radio quality measurement configuration message, receive authentication information for authenticating the radio communication terminal apparatus from an entity of a core network via the radio communication base station apparatus; and report from the radio communication terminal apparatus the radio quality measurement to the radio communication base station apparatus; wherein the radio communication terminal apparatus is handed over by the radio communication base station apparatus to another base station apparatus based on the received authentication information, in case the report of the radio quality measurement indicates that said another base station apparatus has better radio quality than the radio communication base station.