Pulse or digital communications – Receivers – Angle modulation
Reexamination Certificate
2003-03-24
2008-12-30
Ghayour, Mohammad H (Department: 2611)
Pulse or digital communications
Receivers
Angle modulation
C375S316000, C375S322000, C375S300000, C370S281000, C370S295000, C370S319000, C370S343000, C370S344000, C370S478000, C370S480000
Reexamination Certificate
active
07471745
ABSTRACT:
A communication system disclosed herein includes a channel quality estimation module that determines the channel quality metric utilizing the preamble portion of the packet only. Data, in such a communication system, is transmitted in the form of a packet over a data channel during a packet transmission, wherein each data channel includes several subchannels. The system includes a receiver having at least a baseband processor. The baseband processor couples to receive each baseband sample signal. Specifically, the baseband processor calculates the gain estimation of the each subchannel and generates a channel quality metric for each subchannel that is derived by deinterleaving the sequence of gain estimation magnitudes, convolving the deinterleaved sequence of gain estimation magnitudes with a short window index, and detecting the number of times the convolution falls beneath a predetermined threshold.
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Anim-Appiah Kofi D.
Batra Anuj
Williams Richard G. C.
Brady W. James
Ghayour Mohammad H
Malek Leila
Shaw Steven A.
Telecky , Jr. Frederick J.
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