RADIO BASE STATION EQUIPMENT AND RADIO COMMUNICATION METHOD

摘要

PROBLEM TO BE SOLVED: To perform radio communication by applying adaptive array diversity transmission to a shared channel. SOLUTION: This equipment includes adaptive array antennas (AAA) 101 for transmission and reception, a shared channel assigning part 107 for selecting a user for transmitting through a shared channel and an attached channel and a weight giving means by weight multiplying parts 112 for transmission diversity which multiplexing the channel assigned to the selected user to perform transmission diversity to only the share channel-assigned user. Received input from AAA 101 becomes a receiving means passing through a diversity composing part 105 via RF reception parts 102 and AAA reception parts 104 which are respectively in parallel. A weight update part 1043 for an AAA receiving part 104 estimates the direction of a received wave, calculates a weight for receiving and transmitting based on it, inputs the calculation result to a reception weight 1042 and a transmission weight selection part to further improve directivity.