Patent ID: 8144793

Claim:
A method of operating a computing device for communication using a frequency-division multiplexing protocol, the method comprising: operating at least one programmed processor to carry out a series of acts, the series of acts being identified by instructions with which the at least one programmed processor is programmed, the series of acts comprising: retrieving from storage an indication of sub-channels previously selected; selecting a first plurality of selected sub-channels to carry a signal having a first bandwidth, the first plurality being selected from a second plurality of sub-channels, the second plurality collectively having a second bandwidth, the second bandwidth greater than the first bandwidth, wherein selecting the first plurality of selected sub-channels comprises preferentially selecting a sub-channel when the indication indicates that the sub-channel was previously selected for carrying a previous signal transmitted by the computing device prior to the selection of the first plurality of selected sub-channels; and communicating the signal using the first plurality of selected sub-channels.