Patent ID: 8169994

Claim:
A method for wireless frequency division multiple access communications, the method comprising: establishing a first time duration for transmission of a data payload block, the transmission being processed using one of a first frequency domain and a time domain; establishing a second time duration for transmission of at least one pilot block, the transmission being processed using one of a second frequency domain and the time domain, the second time duration not being greater than the first time duration; applying a first fast Fourier transform having a first number of points to pilot symbols corresponding to the at least one pilot block; applying a second fast Fourier transform having a second number of points to data symbols corresponding to the data payload block, the first number of points being less than the second number of points, arranging the data symbols in a cluster; and using a first frequency sub-band to support the cluster in a first transmission time interval and using a second frequency sub-band different from the first frequency sub-band to support the cluster in a second transmission time interval.