Patent ID: 7529178

Claim:
An apparatus to communicate data, comprising: a transmitter to transmit an orthogonal frequency-division multiplexing (OFDM) signal comprising a plurality of signal bursts each comprising m preamble fields, n payload fields, and n signal fields; wherein m<n; wherein each of the m preamble fields comprises a plurality of training sequences; wherein each of the n payload fields is preceded by one of the n signal fields; wherein each one of the n signal fields comprises information describing the following one of the n payload fields, and a preamble indicator, wherein the preamble indicator in one of the n signal fields is set to a predetermined value only when one of the m preamble fields occurs between the one of the n signal fields and the next one of the n signal fields; wherein each of the n payload fields comprises a data packet; and a controller to select a value of n for each of the signal bursts of the OFDM signal.