Patent ID: 8484272

Claim:
A method of processing an input waveform in a communication system, comprising: partitioning the input waveform into at least one input segment; transforming the at least one input segment from time domain to frequency domain to generate at least one frequency-domain segment; setting at least one symbol corresponding to a guard subband in the at least one frequency-domain segment to zero; transforming the at least one frequency-domain segment from the frequency domain to the time domain to generate at least one time-domain segment; multiplexing a set of multi-carrier transmit symbols with a set of single carrier frequency domain converted symbols of the at least one frequency-domain segment; and filtering the at least one time-domain segment with a pulse shaping response to generate an output waveform to meet a spectral mask for the communication system by changing the guard subband and the pulse shaping response, wherein the pulse shaping response comprises unified pulse shaping techniques in conjunction with single and multi-carrier modulation schemes, and wherein the changing the guard subband comprises changing the number of guard subbands at two edges of the at least one frequency-domain segment to meet the spectral mask for the communication system.