Pulse or digital communications – Equalizers
Reexamination Certificate
2006-12-15
2009-11-24
Ahn, Sam K (Department: 2611)
Pulse or digital communications
Equalizers
Reexamination Certificate
active
07623572
ABSTRACT:
A Radio Frequency (RF) receiver includes a RF front end and a baseband processing module coupled to the RF front end that is operable to determine equalizer coefficients for a composite signal that includes a first information signal and a second information signal. First and second information signal channel estimates and channel powers based upon training symbols are determined. A composite signal power is determined. A noise variance of the composite signal is determined based upon the first information signal channel power, the second information signal channel power, and the composite signal power. A plurality of equalizer coefficients are determined based upon the first information signal channel estimate, the second information signal channel estimate, and the noise variance of the composite signal.
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patent: 2007/0258352 (2007-11-01), Wang et al.
Cui, Power Delay Profile and Noise Variance Estimation for OFDM, IEEE, vol. 10, No. 1, Jan. 2006, p. 25-27.
Yang et al., An Improved Channel Quality Estimation Technique For OFDM System, IEEE, 2002, p. 1289-1292.
Ahn Sam K
Broadcom Corporation
Garlick Bruce E.
Garlick & Harrison & Markison
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