Patent ID: 8693432

Claim:
An apparatus comprising: a transmitter module of a communications unit configured to transmit a first data signal, the first data signal being allocated to a first set of orthogonal frequency division multiplexed discrete frequency tones in a first frequency band, and the transmitter module being configured to transmit the first data signal during a first set of time intervals of a frame; and a receiver module of the communications unit configured to receive a second data signal, the second data signal being received using a second set of orthogonal frequency division multiplexed discrete frequency tones in a second frequency band and the receiver module being configured to receive the second data signal during a second set of time intervals of the frame, the first and second frequency bands being different, wherein the transmitter module comprises: an encoder configured to encode the first data signal to generate an encoded first data signal; a tone mapper module configured to map the encoded first data signal to the first set of orthogonal frequency division multiplexed discrete frequency tones in a frequency domain signal; an inverse discrete Fourier transform module configured to transform the frequency domain signal into a digital time domain signal; a digital-to-analog converter configured to convert the digital time domain signal into an analog baseband signal; a radio frequency transmitter configured to convert the analog baseband signal into a radio frequency signal; and an antenna configured to transmit the radio frequency signal.