Simultaneous channel estimation of a carrier and an interferer

Details Simultaneous channel estimation of a carrier and an interferer Simultaneous channel estimation of a carrier and an interferer

2008-05-13

2008-05-13

Pan, Yuwen (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Noise or interference elimination

C455S303000, C455S304000, C455S305000, C455S226100, C455S226300, C375S346000, C375S348000, C375S350000

Reexamination Certificate

active

07373130

ABSTRACT:
Interference suppression in a receiver in a wireless network that utilizes training sequences for synchronization and channel estimation, wherein the training sequence of an interfering channel overlaps the training sequence of a desired channel to cause degraded channel estimation, by generating a channel estimate for a carrier part of a received signal; generating a residual signal where the carrier part has been removed from the received signal; generating covariance matrix estimates for interferer channel estimate candidates; selecting carrier and interferer channel estimates having the lowest energy in the covariance matrix; and, explicitly generating the selected interferer channel estimate.

REFERENCES:
patent: 5933768 (1999-08-01), Skold et al.
patent: 7103092 (2006-09-01), Zeira
patent: 7187736 (2007-03-01), Buckley et al.

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