Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2007-07-02
2009-08-11
Ghayour, Mohammad H (Department: 2611)
Pulse or digital communications
Receivers
Interference or noise reduction
C375S232000
Reexamination Certificate
active
07573963
ABSTRACT:
A method and apparatus for reducing the processing rate when performing chip-level equalization (CLE) in a code division multiple access (CDMA) receiver which includes an equalizer filter. Signals received by at least one antenna of the receiver are sampled at M times the chip rate. Each sample stream is split into M sample data streams at the chip rate. Multipath combining is preferably performed on each split sample data stream. The sample data streams are then combined into one combined sample data stream at the chip rate. The equalizer filter performs equalization on the combined sample stream at the chip rate. Filter coefficients are adjusted by adding a correction term to the filter coefficients utilized by the equalizer filter for a previous iteration.
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Ghayour Mohammad H
InterDigital Technology Corporation
Panwalkar Vineeta S
Volpe and Koenig P.C.
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