Provided is a communication apparatus that can perform first communication in a network during a first period of a predetermined length having a predetermined cycle, and, in the network, can set a second period different from the first period based on the first communication and perform second communication during the second period while continuing the first communication. In a case where the second communication is to be ended, the communication apparatus notifies the partner apparatus of the second communication that the second communication is to be ended, and performs control so as to end the second communication with the partner apparatus according to transmission of the notification.