An AA communication method using an AA communication device including a plurality of AA communication units includes: receiving a signal transmitted from a receiving terminal in each AA communication unit of UN-A and UN-BF, and measuring a receive level of the signal transmitted from the receiving terminal for each communication unit; calculating a transmit weight vector based on received signals corresponding to the signal transmitted from the receiving terminal for each AA communication unit; calculating a received power based on a measured value of the receive level and the transmit weight vector for each AA communication unit; comparing the received powers of the AA communication units, and, to match the received powers to the received power of the unit having a lowest received power, making a downward correction of an amplitude of the transmit weight vector for each of the other communication units; and transmitting a signal using the transmit weight vector after the correction by each communication unit.