| 摘要 |
PROBLEM TO BE SOLVED: To provide a mobile wireless terminal for preventing consumption of a battery even when the mobile wireless terminal is put under unstable electric wave conditions. SOLUTION: A control unit 100 detects the position of the mobile terminal in a service area. The threshold value of receive field level as an index is increased when the control unit 100 determines whether the mobile terminal moves from the outside to the inside of the area, and the determination of the movement into the inside is made harder, so easy process of positional registration and the like can be prevented under unstable communication conditions. During the waiting time for the termination call, the threshold value of receive field level as an index is increased when the control unit 100 determines whether the mobile terminal moves from the outside to the inside of the area even when the general calling channel cannot be received continuously and stable wait of termination call becomes impossible. Then, the determination of the movement into the inside is made harder, so easy process of positional registration and the like can be prevented under unstable communication conditions. |
