A wireless communication method for performing wireless communication between a first and second communication apparatus. The method includes: allocating a first subchannel in a first frequency region of a wireless frame to the second communication apparatus when the second communication apparatus performs a first communication, and allocating a second subchannel in a second frequency region of the wireless frame to the second communication apparatus when the second communication apparatus performs a second communication, by the first communication apparatus; and changing physical subchannels within the first frequency region and performing transmission when the first subchannel is allocated to the second communication apparatus, and changing physical subchannels within the second frequency region and performing transmission when the second subchannel is allocated to the second communication apparatus, by the second communication apparatus.