A communication apparatus includes: MAC control circuitry, which, in operation, controls transmission and reception of a control frame and a data frame that are used for communication with another communication apparatus; and radio circuitry, which, in operation, performs radio communication of the control frame and the data frame using a transmission antenna and a reception antenna, wherein, when the radio circuitry receives, from the another communication apparatus, an SSW frame including an OCB response subfield among a plurality of the control frames, the MAC control circuitry determines whether to perform data communication between the communication apparatus and the another communication apparatus in accordance with the OCB response subfield.