Patent ID: 8082001

Claim:
A mobile communication terminal, comprising: a first communication module which communicates with a licensed network; a second communication module which communicates with a generic access network, wherein the generic access network is an unlicensed network; and a controller which switches the first communication module between a first mode and a second mode according to whether the second communication module is in a third mode, wherein: the first mode is a lower power mode than the second mode, the second mode is a lower power mode than the third mode, in the first mode, no voice communication, data communication, or cell detection, selection, or reselection are performed, in the second mode, at least one of cell detection, selection or reselection is performed but no voice or data communication is performed, in the third mode, voice or data communication is performed, the controller automatically switches the first communication module from the second mode to the first mode when the second communication module is activated, and the controller automatically switches the first communication module from the first mode to the second mode when the second communication module is de-activated, the first communication module only receives signals from the licensed network, and the second communication module only receives signals from the unlicensed.