Patent ID: 7233793

Claim:
A wireless communication terminal, which performs wireless communication using each of a first communication system and a second communication system and enables to be in an idle state with both systems, comprising: a measurement section that measures quality of a signal transmitted from a base station; a handoff determination section that determines handoff in an idle state with the second communication system based on quality of signals transmitted from a connected base station and another base station; and a control section that changes a criterion of the determination of the handoff in the idle state with the second communication system in accordance with a state of the first communication system, wherein the control section sets a first determination threshold value to be used for determining handoff during the idle state with the second communication system when a state of the first communication system is in an idle state, and sets a second determination threshold value to be used for determining handoff during the idle state with the second communication system when the first communication system is in communication.