Telecommunications – Receiver or analog modulated signal frequency converter – Noise or interference elimination
Reexamination Certificate
2006-08-08
2006-08-08
Urban, Edward (Department: 2685)
Telecommunications
Receiver or analog modulated signal frequency converter
Noise or interference elimination
C455S278100, C455S063100, C375S285000, C375S254000
Reexamination Certificate
active
07088978
ABSTRACT:
A communication receiver improves its channel estimation performance, its equalization performance, or both, by modeling the non-Gaussian characteristics of a dominant source of interference in a received signal. That is, rather than using Gaussian-based modeling, the receiver generates signal disturbance estimates using a probabilistic model representative of the non-Gaussian interference in a received signal, such as adjacent channel or co-channel signal interference in mobile station operating within a wireless communication network. The receiver may use such non-Gaussian interference modeling responsive to detecting such interference in the received signal and may match its disturbance model to the detected interference. Further, where signal disturbance is predominantly Gaussian in nature, the receiver may switch to a Gaussian disturbance model.
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Article entitled “TDMA Cellular Network Application of an Interference Cancellation Technique” by Pekka A. Ranta et al.; 1999 IEEE; (5 pages).
Zengjun Xiang et al: “Polynomial Perceptions and Their Applications to Fading Channel Equalization and Co-Channel Interference Suppression” IEEE Transactions on Signal Processing, IEEE, Inc. New York, US, vol. 42 No. 9, Sep. 1994, pp. 2470-2479, XP000477183 ISSN: 1053-587X.
Hui Dennis
Ramesh Rajaram
Burleigh Roger
Chow Charles
Ericsson Inc.
Urban Edward
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