Communication device, method for controlling communication device, and medium

A method for controlling a communication device compliant with an IEEE 802.11 series standard, the method comprising:

• communicating in a communication mode among a first mode, in which transmission and reception are performed independently over each of frequency bands, and a second mode, in which transmission or reception is performed simultaneously over each of the frequency bands;
• judging whether a predetermined condition pertaining to changing the communication mode is satisfied;
• and
• determining, in a case where the predetermined condition is judged to be satisfied in the judging, at least one frequency band to be used for communication in the communication mode after the changing,
• wherein in a case where the predetermined condition is judged to be satisfied in the judging during communication with a first other communication device using each frequency band of a plurality of frequency bands in the first mode or the second mode in the communicating, in the determining, based on the plurality of frequency bands, a plurality of frequency bands for performing communication in the communication mode after the changing are determined, and
• after the determining, in the communicating, communication with the first other communication device is performed in the communication mode after the changing using the plurality of frequency bands determined.

A non-transitory computer-readable recording medium storing a program for causing a computer to execute a method for controlling a communication device compliant with an IEEE 802.11 series standard, the method comprising:

• communicating in a communication mode among a first mode, in which transmission and reception are performed independently over each of frequency bands, and a second mode, in which transmission or reception is performed simultaneously over each of the frequency bands;
• judging whether a predetermined condition pertaining to changing the communication mode is satisfied;
• and
• determining, in a case where the predetermined condition is judged to be satisfied in the judging, at least one frequency band to be used for communication in the communication mode after the changing,
• wherein in a case where the predetermined condition is judged to be satisfied in the judging during communication with a first other communication device using each frequency band of a plurality of frequency bands in the first mode or the second mode in the communicating, in the determining, based on the plurality of frequency bands, a plurality of frequency bands for performing communication in the communication mode after the changing are determined, and
• after the determining, in the communicating, communication with the first other communication device is performed in the communication mode after the changing using the plurality of frequency bands determined.