Radio base station apparatus and radio communication method

摘要

Antenna elements (1a through 1d) configuring an adaptive array antenna receive uplink signals from a user equipment and transmit downlink signals to the user equipment. The adaptive processor (3) calculates for each user equipment, weight information based on reception electric information of the high speed dedicated physical control channel HS-DPCCH and stores the calculation results in the adaptive processor memory (4). When transmitting data to the user equipment via the high speed physical downlink shared channel HS-PDSCH to the user equipment, the processor extracts weight information corresponding to the user equipment of a destination of the data and sets the extracted information in the multipliers (5a through 5d).