Systems/methods of bandwidth variability and/or air interface variability responsive to a size of data to be transmitted

A method comprising:

• wirelessly transmitting by a transmitter of a smartphone, by a transmitter of an access point or by a transmitter of a base station;
• and
• wirelessly receiving by a receiver of the smartphone, by a receiver of the access point or by a receiver of the base station;
• wherein said wirelessly transmitting by a transmitter of a smartphone, by a transmitter of an access point or by a transmitter of a base station comprises wirelessly transmitting to a destination device a first plurality of subcarriers using a first set of frequencies and a first air interface;
• and, responsive to a size of data that is to be transmitted to the destination device, said wirelessly transmitting by a transmitter of a smartphone, by a transmitter of an access point or by a transmitter of a base station comprises wirelessly transmitting to the destination device a second plurality of subcarriers using a second set of frequencies and a second air interface that comprises a variant of the first air interface;
• wherein the first set of frequencies comprises frequencies used for cellular communications;
• wherein the second set of frequencies comprises frequencies used for cellular communications;
• wherein at least some frequencies of the second set of frequencies are mutually exclusive with all frequencies the first set of frequencies;
• and
• wherein said wirelessly transmitting to a destination device a first plurality of subcarriers using a first set of frequencies and a first air interface;
• and said wirelessly transmitting to the destination device a second plurality of subcarriers using a second set of frequencies and a second air interface that comprises a variant of the first air interface occur over respective first and second intervals of time that do not overlap with one another or overlap with one another at least partially.