Soft decision gain compensation for receive filter attenuation

Details Soft decision gain compensation for receive filter attenuation Soft decision gain compensation for receive filter attenuation

2005-12-06

2005-12-06

Trinh, Sonny (Department: 2685)

Telecommunications

Receiver or analog modulated signal frequency converter

Noise or interference elimination

C455S130000, C455S283000, C455S285000

Reexamination Certificate

active

06973296

ABSTRACT:
A wireless receiver including a receive chain, a synchronization processor, a memory, a combiner and a soft decision processor. The synchronization processor determines a frequency response of the wireless channel using synchronization data transmitted in the wireless channel. The memory stores a compensation vector indicative of a frequency response of receive chain filtering. The combiner combines the compensation vector with the wireless channel frequency response to provide a compensated frequency response. The soft decision processor uses the compensated frequency response to evaluate data decisions. The compensation vector is based on measurement or estimation of the frequency response of the receive chain. The combiner may be based on multiplication or addition. The wireless receiver may include an FEQ. The synchronization processor generates FEQ coefficients for programming the FEQ taps. The FEQ provides an equalized data value and a compensated frequency response value to the soft decision processor for each sub-carrier.

REFERENCES:
patent: 4873683 (1989-10-01), Borth et al.
patent: 5121391 (1992-06-01), Paneth et al.
patent: 6115435 (2000-09-01), Harada et al.
patent: 6259729 (2001-07-01), Seki
patent: 6301315 (2001-10-01), Li
patent: 6536010 (2003-03-01), Brink
patent: 6662337 (2003-12-01), Brink
patent: 2003/0081703 (2003-05-01), Kawaguchi et al.
patent: 0 771 079 (1997-05-01), None
patent: 1 213 852 (2002-06-01), None
PCT Notification of Transmittal of International Preliminary Examination Report, dated Oct. 23, 2003, 4 pages.
PCT Notification of Transmittal of the International Search Report or the Declaration dated Apr. 4, 2003, 5 pages.

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