Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Reexamination Certificate
2004-12-22
2009-11-10
Corrielus, Jean B (Department: 2611)
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
C375S224000, C375S285000, C375S296000, C375S350000
Reexamination Certificate
active
07616711
ABSTRACT:
A channel estimation system comprises a filtering component that selectively scales a plurality of carriers as a function of location of the plurality of carriers within a frequency band, wherein the plurality of carriers comprises at least one data carrier and at least one pilot carrier. A component thereafter extrapolates an observation from the at least one pilot carrier, wherein a channel is estimated as a function of the extrapolated observation. The scaling of the carriers facilitates reducing a flooring effect associated with channel estimation. The filtering component can be employed at a transmitter and/or at a receiver, and can be activated and/or deactivated as a function of a sensed data packet type.
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Agrawal Avneesh
Gore Dhananjay Ashok
Gorokhov Alexei
Khandekar Aamod
Corrielus Jean B
Minhas Sandip S.
O'Hare James K
QUALCOMM Incorporated
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