Patent ID: 8385278
Filing Date: 2013-02-26
Classification: H04W,Y02D

Abstract:
1. A mobile radio terminal comprising: a circuit switching network transmission/reception unit configured to perform transmission and reception to and from a base station belonging to a circuit switching network, with use of a radio signal; a mobile communication network transmission/reception unit configured to perform transmission and reception to and from a base station belonging to a mobile communication network, with use of the radio signal, the mobile communication network being connected to the circuit switching network and forming an integrated communication network together with the circuit switching network; a control unit configured to activate the circuit switching network transmission/reception unit and control the circuit switching network transmission/reception unit so as to maintain synchronization with the base station belonging to the circuit switching network, if the mobile radio terminal is on standby in the base station belonging to the mobile communication network; and a synchronization processing clock generating unit configured to generate a synchronization processing clock serving as a reference of timing for acquiring synchronization with the circuit switching network, wherein the control unit activates the circuit switching network transmission/reception unit on the basis of the synchronization processing clock generated by the synchronization processing clock generating unit.