COMMUNICATION TERMINAL APPARATUS AND RADIO COMMUNICATION METHOD

摘要

In a radio communication system having a plurality of systems, a communication terminal apparatus monitors a downlink signal from each system using monitoring circuit 305 and outputs monitoring information, a base station apparatus selects a system to accommodate the communication terminal apparatus based on the monitoring information from the communication terminal apparatus and the communication terminal apparatus communicates/connects with the base station of the system selected by the above-described base station. <IMAGE>