A communication apparatus that performs radio communication with another communication apparatus using a frame structure, comprising: a time region division unit that divides the frame period into a plurality of time regions; a communication state monitoring unit (111, 112) that monitors a communication state of the plurality of time regions obtained by the time region division unit; and a transmission scheme setting unit that sets, based on a monitoring result obtained by the communication state monitoring unit for the plurality of time regions, a transmission scheme to be used in each of the plurality of time regions, characterized in that the communication state monitoring unit (111, 112) monitors a communication state in each of the plurality of time regions, a time dependency determining unit determines whether or not time-dependent interference is present during communication with the other communication apparatus, wherein when it is determined at the time dependency determining unit that the time-dependent interference is present, the communication state monitoring unit (111, 112) monitors a communication state in each of the plurality of time regions obtained by the time region division unit, and the transmission scheme setting unit sets, based on a monitoring result obtained by the communication state monitoring unit for each of the plurality of time regions, a transmission scheme to be used in each of the plurality of time regions, and the radio communication is performed by applying repetitions of a predetermined frequency hopping pattern, and the time dependency determining unit performs reception by sequentially changing frequency hopping patterns except for the predetermined frequency hopping pattern, and determines that the time-dependent interference is present when any communication is received using one of the frequency hopping patterns. a time region division unit that divides the frame period into a plurality of time regions; a communication state monitoring unit (111, 112) that monitors a communication state of the plurality of time regions obtained by the time region division unit; and a transmission scheme setting unit that sets, based on a monitoring result obtained by the communication state monitoring unit for the plurality of time regions, a transmission scheme to be used in each of the plurality of time regions, characterized in that the communication state monitoring unit (111, 112) monitors a communication state in each of the plurality of time regions, a time dependency determining unit determines whether or not time-dependent interference is present during communication with the other communication apparatus, wherein when it is determined at the time dependency determining unit that the time-dependent interference is present, the communication state monitoring unit (111, 112) monitors a communication state in each of the plurality of time regions obtained by the time region division unit, and the transmission scheme setting unit sets, based on a monitoring result obtained by the communication state monitoring unit for each of the plurality of time regions, a transmission scheme to be used in each of the plurality of time regions, and the radio communication is performed by applying repetitions of a predetermined frequency hopping pattern, and the time dependency determining unit performs reception by sequentially changing frequency hopping patterns except for the predetermined frequency hopping pattern, and determines that the time-dependent interference is present when any communication is received using one of the frequency hopping patterns.