| 摘要 |
A method of wirelessly communicating is disclosed. The method comprises generating a plurality of tones for a wideband orthogonal frequency division multiplex symbol ( 310 ), the tones including a plurality of contiguous zero-valued tones, inverse Fourier transforming the tones to a plurality of time-domain samples ( 312 ), copying a plurality of the time-domain samples as a portion of a cyclic block ( 314 ), the cyclic block ( 314 ) contiguous with the time-domain samples ( 312 ), time-domain window filtering the time-domain samples ( 312 ) and the cyclic block ( 314 ) to form a portion of the wideband orthogonal frequency division multiplex symbol ( 310 ), wherein the time-domain window filter ( 350 ) is a function Phi(k) having the property that Phi(k)+Phi(k+N<SUB>fft</SUB>) is about equal to a constant theta where N<SUB>fft </SUB>is the number of tones, and transmitting the wideband orthogonal frequency division multiplex symbol ( 310 ).
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