COMMUNICATION APPARATUS AND COMMUNICATION METHOD

PROBLEM TO BE SOLVED: To provide technique capable of improving accuracy in transmission weights to control the transmission directivities of multiple antennas.SOLUTION: When a transmission weight is set in each transmission signal, a transmission weight processing part 21 of a weight processing part 20 corrects the transmission weight by using the delay amount of reception timing concerning a second known signal when the second known signal exists, which is received by multiple antennas after a first known signal used for the calculation of the transmission weight and also is transmitted by a transmission frequency band different from that of the first known signal. Then, the transmission weight processing part 21 sets the transmission weight after the correction in the transmission signal.