Patent ID: 8547934

Claim:
A mobile communication method comprising: step A of monitoring, by a radio base station connected to a local user network, certain traffic in the local user network; step B of notifying, by the radio base station, a mobile communication network of communication quality information indicating that communication quality therein is not assurable when the radio base station detects that the certain traffic in the local user network exceeds a predetermined threshold; step C of transmitting, by a mobile station, a communication start request which requests start of specific communication via the local user network, to the mobile communication network; step D of selecting, by the mobile communication network upon receipt of the communication start request, a radio base station, connected to the mobile communication network outside of the local user network, to which the mobile station is connected at the time of performing the specific communication, the selection being made on the basis of the communication quality information; and step E of starting, by the mobile station, the specific communication through the selected radio base station.