Method and receiver circuit for reducing RFI interference

Details Method and receiver circuit for reducing RFI interference Method and receiver circuit for reducing RFI interference

2005-09-30

2011-12-27

Payne, David C. (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

C375S240260, C375S240290, C375S316000, C370S465000, C370S336000, C370S497000

Reexamination Certificate

active

08085887

ABSTRACT:
In a method for generating a compensation signal for the compensation of at least one RFI interference signal that, in a DMT transmission, is permanently superposed on a received DMT reception signal being divided into a multiplicity of channels at least one reference channel from the multiplicity of channels is provided. The multiplicity of channels comprise a first portion provided as data channels for the data transmission and a second portion which is an observation region unused for the data transmission. Channel-specific coefficients for at least one of the data channels to be compensated are provided. The channel-specific coefficients specify a correlation of the RFI interference signal being superposed on the respective data channel in respect of the reference channel. A compensation signal is generated by weighting and summing the received DMT reception signals with the channel-specific coefficients per DMT frame and for each data channel to be compensated.

REFERENCES:
patent: 5479444 (1995-12-01), Malkamaki et al.
patent: 5870432 (1999-02-01), Kerckhove
patent: 5995567 (1999-11-01), Cioffi et al.
patent: 6014412 (2000-01-01), Wiese et al.
patent: 6035000 (2000-03-01), Bingham
patent: 6404806 (2002-06-01), Ginesi et al.
patent: 6404830 (2002-06-01), Wiese et al.
patent: 6449324 (2002-09-01), Wiese et al.
patent: 6456673 (2002-09-01), Wiese et al.
patent: 6738440 (2004-05-01), Isaksson et al.
patent: 7428270 (2008-09-01), Dubuc et al.
patent: 2001/0026602 (2001-10-01), Wiese et al.
patent: 2001/0028692 (2001-10-01), Wiese et al.
patent: 2002/0106035 (2002-08-01), Harikumar et al.
patent: 2003/0063680 (2003-04-01), Nedic et al.
patent: 2003/0203721 (2003-10-01), Berezdivin et al.
patent: 2004/0083254 (2004-04-01), Schenk
patent: 2004/0091056 (2004-05-01), Harikumar et al.
patent: 2005/0068886 (2005-03-01), Wang et al.
patent: 2006/0146945 (2006-07-01), Chow et al.
patent: 697 14 241 (2003-02-01), None
patent: 698 11 716 (2003-12-01), None
patent: 102 45 282 (2004-04-01), None
patent: WO 01/95580 (2001-12-01), None
patent: WO 03/039088 (2003-05-01), None
patent: WO 03049396 (2003-06-01), None
Fanucci, L., “VLSI Design of a Digital RFI Cancellation Scheme for VDSL Transceivers”, Euromicro Symposium on Digital System Design 2004, pp. 182-189, (8 pages).
Schwarz et al., “Detection and Compensation of Narrowband Interference for Wireline Multi-Carrier Modulator Systems”, First International Symposium on Control, Communications and Signal Processing 2004, pp. 377-390, (4 pages).
Nilsson et al., “A Narrow-Band Interference Canceller for OFDM-based Systems”, Proceedings of the 4thEuropean Personal Mobile Conununications Conference, Vienna, Feb. 2001, pp. 1-8, (8 pages).

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