Patent ID: 7184485

Claim:
A method of wirelessly communicating, comprising: generating a plurality of tones for a wideband orthogonal frequency division multiplex symbol, the tones including a plurality of contiguous zero-valued tones; inverse Fourier transforming the tones to a plurality of time-domain samples; copying a number of the time-domain samples as a portion of a cyclic block, the cyclic block contiguous with the time-domain samples; time-domain window filtering the time-domain samples and the cyclic block to form a portion of the wideband orthogonal frequency division multiplex symbol, wherein the time-domain window filter is a function Φ(k) having the property that Φ(k)+Φ(k+N fft ) is in approximate equality with a constant θ where N fft is the number of tones; and transmitting the wideband orthogonal frequency division multiplex symbol.