| 摘要 |
PROBLEM TO BE SOLVED: To provide a mobile network system that develops its own service to radio terminals in a specific area. SOLUTION: The locations of portable terminals 15 and portable information terminals 16 moved into a closed area 10 from the outside are registered (location registration) in local base stations 13 and 14 from public base stations 2 and 3, and a server 19 provides the terminals 15 and 16 with local service information through the base stations 13 and 14.
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