Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2006-09-13
2011-10-11
Liu, Shuwang (Department: 2611)
Pulse or digital communications
Receivers
Interference or noise reduction
C327S310000, C327S384000, C327S551000, C348S607000, C455S296000
Reexamination Certificate
active
08036325
ABSTRACT:
A method and apparatus for cancelling interference in received signals are disclosed. A receiver includes a knowledge-based interference cancellation unit, a blind interference cancellation unit and a trade-off management unit. The knowledge-based interference cancellation unit cancels interference in the received signals based on pre-known knowledge and the blind interference cancellation unit cancels interference in the received signals without the pre-known knowledge. The trade-off management unit determines a trade-off between knowledge-based interference cancellation and blind interference cancellation, whereby at least one of the knowledge-based interference cancellation and the blind interference cancellation is selectively preformed based on the trade-off. The interference cancellation may be performed by implementing at least one of a successive interference cancellation (SIC), a principal component analysis (PCA) and an independent component analysis (ICA). The knowledge-based and the blind interference cancellation may be performed in parallel, in series or in any combination.
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Chitrapu Prabhakar R.
Goldberg Steven Jeffrey
Interdigital Technology Corporation
Liu Shuwang
McKie Gina
Volpe and Koenig P.C.
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