Generation of preamble sequences in an multicarrier communication system

摘要

The method involves grouping m subcarriers by n subcarriers, and assigning null data to the subcarriers except the n subcarriers that are assigned to the subchannels. Data of a given sequence is assigned to one subchannel selected from the p subchannels. An inverse fast Fourier transformer (IFFT)(419) transforms the data assigned to the subchannels into time-domain data. An independent claim is also included for an apparatus for generating a preamble sequence in an orthogonal frequency division multiplexing communication system.