Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2006-03-28
2006-03-28
Bayard, Emmanuel (Department: 2631)
Pulse or digital communications
Spread spectrum
Direct sequence
Reexamination Certificate
active
07020180
ABSTRACT:
Techniques to acquire pilots over code space and/or frequency errors. In one aspect, pilot acquisition is performed using a number of substages, and some of the substages are pipelined and performed in parallel using different processing elements. A searcher initially searches over a designated code space to find peaks, and these peaks may be re-evaluated. Finger processors then attempt to acquire the candidate peaks. The searcher may be operated to search for the next set of peaks while the finger processors process the current set of peaks. In another aspect, the full range of frequency errors for the pilots is divided into a number of frequency bins. A multi-stage scheme is used to evaluate the bins, and may employ pipelining and parallel processing such that a search for peaks in the next bin is performed while acquisition of peaks found for the current bin is attempted.
REFERENCES:
patent: 4701934 (1987-10-01), Jasper
patent: 5764687 (1998-06-01), Easton
patent: 5781543 (1998-07-01), Ault et al.
patent: 5790589 (1998-08-01), Hutchison et al.
patent: 5926503 (1999-07-01), Kelton et al.
patent: 5966402 (1999-10-01), Yamamoto
patent: 5995483 (1999-11-01), Marchok et al.
patent: 6111911 (2000-08-01), Sanderford et al.
patent: 6178193 (2001-01-01), Kondo
patent: 6269075 (2001-07-01), Tran
patent: 6272167 (2001-08-01), Ono
patent: 6298083 (2001-10-01), Westcott et al.
patent: 6424816 (2002-07-01), Stephens
patent: 6452961 (2002-09-01), Van Wechel
patent: 6507743 (2003-01-01), Abrishamkar et al.
patent: 6519277 (2003-02-01), Eidson
patent: 6522871 (2003-02-01), Patrick et al.
patent: 6567462 (2003-05-01), Brunner et al.
patent: 6621855 (2003-09-01), Van Stralen et al.
patent: 6628735 (2003-09-01), Belotserkovsky et al.
patent: 6690680 (2004-02-01), Marchok et al.
patent: 6700866 (2004-03-01), Heinonen et al.
patent: 6700922 (2004-03-01), Challa et al.
patent: 6728203 (2004-04-01), Wang
patent: 2002/0009064 (2002-01-01), Blessent et al.
patent: 2002/0024992 (2002-02-01), Ogawa et al.
patent: 2002/0136274 (2002-09-01), Proctor et al.
patent: 0654913 (1994-11-01), None
patent: 0810741 (1997-05-01), None
patent: 0163813 (2001-08-01), None
Challa Raghu
Glazko Serguei A.
Sih Gilbert Christopher
Bayard Emmanuel
Brown Charles D.
Loomis Timothy F.
Qualcomm Inc.
Wadsworth Philip R.
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