Patent ID: 6553082
Filing Date: 2003-04-22
Classification: H04B,H04L

Abstract:
A channel estimation sequence (SE) configured to be received by a receiver comprising a first correlator configured to correlate the received channel estimation sequence (SE) with a first sequence so as to produce a first correlation result, a delay module configured to delay a complement of the first sequence, a second correlator configured to correlate the delayed complementary sequence with the received channel estimation sequence (SE) so as to produce a second correlation result, and an adder configured to add said first correlation result and said second correlation, comprising:concatenated sequences S and G, wherein said sequence S comprises the first sequence s and at least one of an extension esf comprising a copy of a rear portion of the first sequence s and an extension esd comprising a copy of a front portion of sequence s, and said sequence G comprises sequence g complementary to the first sequence s and at least one of an extension egf comprising a copy of a rear portion of sequence g and an extension egf comprising a copy of a front portion of sequence g.