| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem in which the portable terminal in the patent document 1 is not capable of sufficiently suppressing power consumption of a battery.SOLUTION: The portable terminal registers repetition positions at a first frequency to a connected core network device. After a first time point when it is determined that the own terminal is not used and is not being moved, when a predetermined conditions are satisfied, the portable terminal stops a predetermined application and performs the position registration at a second frequency lower than the first frequency. |
