Patent ID: 6917645
Filing Date: 2005-07-12
Classification: H04B

Abstract:
1. A Code Division Multiple Access (CDMA) receiver capable of detecting a pilot channel signal having a known pseudo-random noise (PN) chip sequence, said known PN chip sequence comprising a plurality of known Logic 1 chips and a plurality of known Logic 0 chips, said CDMA receiver comprising: a memory capable of storing said pilot channel signal as a first original sequence of chip samples; a pseudo-signal generator capable of re-ordering selected ones of said first original sequence of chip samples to thereby generate a first re-ordered sequence of chip samples, wherein said pseudo-signal generator combines said original sequence of chip samples with said first re-ordered sequence of chip samples to thereby generate a first pseudo-signal sequence of combined chip samples; a first matched filter capable of computing a first correlation value indicating a relative correlation between said first pseudo-signal sequence of combined chip samples and said known PN chip sequence; and a decision circuit capable of determining from said first correlation value if said pilot channel signal has been detected.