Mobile communication system, base station terminal, and control method therefor

摘要

A control method comprises, transmitting wireless signals to an overall area assigned to said base station area; receiving wireless signals from the overall area; communicating via a first wireless channel with a terminal station located within the overall area; transmitting wireless signals to a limited area which lies within the overall area; receiving wireless signals from the limited area; and communicating via a second channel with the terminal station when the terminal station is located within the limited area.