Patent ID: 7061976

Claim:
A method of training an equalizer based on a packet including a preamble segment, a header segment and a payload segment, wherein each of said segments has a symbol rate and said equalizer has a plurality of filter taps, said method comprising the steps of: adapting said plurality of filter taps according to said preamble segment; extracting from said header segment a symbol rate value of said payload segment; determining whether said symbol rate value indicates that said symbol rate of said payload segment is higher than said symbol rates of said preamble and header segments; re-adapting said plurality of filter taps according to said preamble segment if said determining step determines that said symbol rate of said payload segment is higher than said symbol rates of said preamble and header segments, wherein, for said re-adapting step, a plurality of zeros are inserted into said preamble segment to account for the difference between said symbol rate of said payload segment and said symbol rate of said preamble segment; forcing a zero decision when a zero is inserted into said preamble segment.