Radio communication system and method

摘要

The present invention relates to a radio communication apparatus and system in a CDMA/TDD system in which a mobile station directs received power of data received from a surrounding base station at received power detecting circuit 12 in switching a base station for communication as moving. When received power from a base station other than a main base station in current communication becomes higher than a predetermined level, the mobile station makes the base station sub base station to transmit the same data as the main base station, and receives data from the main base station and the sub base station concurrently at correlator 5 and correlator 6. After that, when the received power from the sub base station becomes higher than the received power from the main base station, the mobile station switches a main base station and a sub base station and transmits data to a new main base station. <IMAGE>