Interference cancellation method and receiver

Details Interference cancellation method and receiver Interference cancellation method and receiver

2006-08-16

2010-02-09

Trost, IV, William (Department: 2472)

Multiplex communications

Generalized orthogonal or special mathematical techniques

C370S286000, C370S289000, C375S130000, C375S144000, C375S148000, C375S213000, C375S346000, C375S348000

Reexamination Certificate

active

07660231

ABSTRACT:
The invention relates to an interference cancellation method and a receiver including interference canceller for suppressing a narrow-band interference signal from a received signal, converter for performing an orthonormal conversion of the signal into subspace components of a desired subspace, a decoder connected operationally to the output of the interference canceller, in which decoder an estimate for the received signal is obtained. The output of the decoder is operationally connected to the interference canceller, and the converter is arranged to determine an estimate for narrow-band interference properties, in which determination the estimate obtained from the output of the decoder is subtracted from the received signal before the orthonormal conversion is performed. By using the determined estimate, the interference canceller is arranged to reduce effect of the subspace components including narrow-band interference signals from the received signal.

REFERENCES:
patent: 4613978 (1986-09-01), Kurth et al.
patent: 5671247 (1997-09-01), Souissi et al.
patent: 5694437 (1997-12-01), Yang et al.
patent: 5719899 (1998-02-01), Thielecke et al.
patent: 5973642 (1999-10-01), Li et al.
patent: 5978413 (1999-11-01), Bender
patent: 6178158 (2001-01-01), Suzuki
patent: 6219376 (2001-04-01), Zhodzishsky et al.
patent: 6240122 (2001-05-01), Miyashita
patent: 6285861 (2001-09-01), Bonaccorso et al.
patent: 6473417 (2002-10-01), Herzog
patent: 6532254 (2003-03-01), Jokinen
patent: 6574270 (2003-06-01), Madkour et al.
patent: WO 98/18210 (1998-04-01), None
Tulino et al, “Iterative Interference Suppression and Decoding in DS/FH Spread-Spectrum Systems,” IEEE Transactions on Communication, vol. E38-B ( No. 8), p. 1591-1601, (Aug. 2000).
Subbaram, et al, “Interference Suppression Via Orthogonal Projections: A Performance Analysis,” IEEE Transactions of Antennas and Propagation, vol. 41 ( No. 9), p. 1187-1194, (Sep. 1993).
Fathallah, et al., “A Subspace Approach to Adaptive Narrow-Band Interference Suppression in DSSS,” IEEE Transactions on Communication, vol. 45 ( No. 12), p. 1575-1585, (Dec. 1997).
Lops et al., “Automatic Suppression of Narrow-Band Interference in Direct-Sequence Spread-Spectrum Systems,” IEEE Transactions on Communication, vol. 47 ( No. 8), p. 1133-1136, (Aug. 1999).
Sandberg, “Adapted Demodulation for Spread-Spectrum Receivers which Employ Transform-Domain Interference Excision,” IEEE Transactions on Communications, vol. 43 ( No. 9), p. 2502-2510, (Sep. 1995).
Robertson, “Illuminating the Structure of Code and Decoder of Parallel Concatenated Recursive Systematic (Turbo) Codes,” Proc. Globecom '94, p. 1298-1303, (Dec. 1996).
Feng et al., “A List Bidirectional Soft Output Decoder of Turbo Codes,” International Symposium on Turbo Codes, p. 288-292, (1997).
Wax et al., “Detection of Signals by Information Theoretic Criteria,” IEEE Transactions on Acoustics, Speech and Signal Processing, vol. 33 ( No. 23), p. 387-392, (Apr. 1985).

Affiliated with

Also associated with

Rating

Interference cancellation method and receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Interference cancellation method and receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interference cancellation method and receiver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4232543