Patent ID: 7593478

Claim:
A method implemented in an apparatus for selecting a channel estimation sequence, the method comprising the steps of: (a) selecting, by the appartus, a first sequence at random from a defined space of all possible sequences; (b) defining said first sequence as a seed sequence; (c) searching all sequences within a defined distance of the seed sequence; (d) finding a second sequence, wherein said second sequence has the lowest peak-to-average ratio (PAR) of all sequences within said defined distance; (e) comparing the PAR of the second sequence to the PAR of the seed sequence; (f) if the PAR of the second sequence is lower than the PAR of the seed sequence, defining the second sequence as the new seed sequence and repeating steps (c)-(e); and (g) if the PAR of said second sequence is higher than the PAR of the seed sequence, selecting the seed sequence as the channel estimation sequence.