Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2004-05-03
2009-02-24
Torres, Juan A (Department: 2611)
Pulse or digital communications
Receivers
Interference or noise reduction
C375S254000, C375S285000
Reexamination Certificate
active
07496164
ABSTRACT:
A system and method for interference cancellation is provided to cancel/greatly reduce the interference of a wireless network. The interferers are separated from a desired signal using independent component analysis by hypothesizing the transmitting sequence. An optional whitening filter is used after the signal separation to improve the signal conditioning. The separated signal is processed by a second pass channel estimation to improve the signal channel estimation and is fed to a Maximum Likelihood Sequence Estimation (MLSE) algorithm, such as a Viterbi algorithm, for signal detection.
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AT&T Mobility II LLC
Torres Juan A
Zagorin O'Brien Graham LLP
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