MOBILE COMMUNICATION SYSTEM, NETWORK APPARATUS AND MOBILE COMMUNICATION METHOD

摘要

A network apparatus 20 includes a specific cell information management unit 22 configured to manage information on a specific cell for each of the plurality of public cells, the specific cell having a service area overlapping with the service area of the public cell and using the same frequency as the public cell, a communication unit 21 configured to receive a communication request signal from a mobile communication terminal visiting any of the plurality of public cells, and a selection unit 24 configured to select a communication frequency to be used by the mobile communication terminal among the communication frequencies of the plurality of public cells based on the information managed by the specific cell information management unit in response to the communication request signal from the mobile communication terminal.