Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2001-08-20
2008-12-30
Chan, Wing F (Department: 2619)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S342000, C370S527000, C370S529000, C375S141000
Reexamination Certificate
active
07471657
ABSTRACT:
The punctured pilot channel comprises information symbols of uncertain sign punctured into a sequence of pilot channel symbols of predetermined sign. The apparatus includes an information sign demodulation circuit for determining the sign of the information symbols in response to the pilot channel symbols. A continuous pilot generator generates a non-punctured pilot channel of predetermined sign from the information symbols and the pilot channel symbols. In a first embodiment, the information sign demodulator further comprises a dot product circuit for calculating a dot product of the pilot channel symbols and the punctured information symbols, and a threshold comparator for comparing the dot product to a predetermined threshold.
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Blessent Luca
Motiwala Quaeed
Chan Wing F
Moskowitz Larry J.
QUALCOMM Incorporated
Rouse Thomas
Scheibel Robert C
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