Patent ID: 7865359

Claim:
A method for transmitting data in a wireless network, the method comprising: generating a plurality of waveforms corresponding to a plurality of frequency subbands for a predetermined frequency band, the predetermined frequency band being divided into a plurality of groups of subbands, the plurality of groups of subbands being divided into the plurality of frequency subbands; receiving a data signal; processing information associated with the received data signal; modulating the plurality of waveforms based on at least information associated with the received data signal; transmitting the modulated plurality of waveforms; wherein: any two of the plurality of waveforms are substantially orthogonal to each other; each of the plurality of waveforms corresponds to a waveform frequency spectrum associated with a spectral amplitude as a function of a frequency; the spectral amplitude for the frequency spectrum equals substantially zero outside a frequency subband selected from the plurality of frequency subbands, and equals substantially a constant number within the frequency subband.