Patent ID: 7295626

Claim:
A transmitter for a multiple access passband communication system, which is capable of generating signals comprising data-carrying signal frames and wherein said transmitter comprises: means for dividing said data-carrying signal frames into at least two data-carrying signal segments; replicating means for replicating the data-carrying signal segments to form time-domain repetitions of the data-carrying signal segments; and offsetting means for offsetting said time domain repetitions of the data-carrying signal segments from a first carrier central frequency at which said transmitter is operative, by a frequency offset, wherein said transmitter is operative to transmit the offset time-domain repetitions of the data-carrying signal segments, and where a time-domain replication effect generated by the replicating means is achieved by filling a frequency-domain array with frequency-domain values at equally spaced locations and performing an inverse Fourier transform thereon.