CDMA searcher with time offset compensation

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6680968
APP PUB NO 20020181548A1
SERIAL NO

09860869

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Techniques for increased pilot detection accuracy are disclosed, which provide the benefits of increased acquisition speed, increased data rate, decreased power, and improved overall system capacity. In one aspect, pilot energy calculations corresponding to PN offsets surrounding the PN offset of a local pilot energy maximum are combined with that local pilot energy maximum resulting in a compensated, more accurate local pilot energy maximum. In another aspect, the combination of nearby energy calculations is combined with the local pilot energy maximum via a function with pre-calculated compensation factors. The pre-calculated compensation factors can be determined to minimize mean-squared error in the resultant compensated local pilot energy maximum. These factors can be calculated based on a matched filter. The techniques described herein apply equally to both access points and access terminals.

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Patent Owner(s)

Patent OwnerAddress
QUALCOMM INCORPORATION A DELAWARE CORPORATION5775 MOREHOUSE DRIVE SAN DIEGO CA 92121-1714

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Black, Peter J San Diego, CA 165 9296
Hinderling, Jurg San Diego, CA 20 1018

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