Wireless base station apparatus and wireless communication control method

摘要

A wireless base station apparatus ( 100 ) used in a wireless communications system includes a statistical processing unit ( 140 ) that performs statistical processing on downlink radio quality information reported from a wireless communications terminal device; a radio quality information offsetting unit ( 160 ) that adjusts the statistically processed downlink radio quality information based on a downlink transmission confirmation (ACK/NACK/DTX) message transmitted from the wireless communications terminal device and a required downlink quality; a transport format determination unit ( 170 ) that determines a downlink transport format based on the statistically processed radio quality information or the offset-adjusted radio quality information; and a transmitting unit ( 111 ) that transmits a downlink channel with the determined downlink transport format.