| 摘要 |
PROBLEM TO BE SOLVED: To quickly measure a position using GPS. SOLUTION: A mobile communication terminal 10 performs individual positioning, to calculate a substantial position, each time the terminal travels by 150 km and prepares an effective rough measurement position. Then, it becomes necessary to measure a more accurate position, the terminal 10 notifies the prepared, substantial measured position to a positioning support server 30, and performs positioning processing, by GPS using satellite supplemental information that is transmitted from the positioning support server 30, accordingly. |
