Title:
CHANNEL ESTIMATOR
Document Type and Number:
WIPO Patent Application WO/2010/092394
Kind Code:
A3
Abstract:
There is provided a channel estimator for a receiver in a communication system, the channel estimator comprising an input for receiving signals that have been transmitted over a transmission channel; processing means for determining an initial estimate of the channel impulse response of the transmission channel from the received signals, the determined initial estimate comprising a plurality of taps; and determining a further estimate of the transmission channel from the initial estimate; wherein the processing means is configured to apply a weighting to a subset of the plurality of taps from the initial estimate in determining the further estimate, the value of the weighting being determined according to a quality of the received signals.
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Inventors:
NIX ANDREW (GB)
ARMOUR SIMON (GB)
HUANG GILLIAN (GB)
ARMOUR SIMON (GB)
HUANG GILLIAN (GB)
Application Number:
PCT/GB2010/050224
Publication Date:
January 13, 2011
Filing Date:
February 12, 2010
Export Citation:
Assignee:
UNIV BRISTOL (GB)
NIX ANDREW (GB)
ARMOUR SIMON (GB)
HUANG GILLIAN (GB)
NIX ANDREW (GB)
ARMOUR SIMON (GB)
HUANG GILLIAN (GB)
International Classes:
H04L25/02
Foreign References:
| US20070280363A1 | 2007-12-06 |
Other References:
EDFORS O ET AL: "ANALYSIS OF DFT-BASED CHANNEL ESTIMATORS FOR OFDM", WIRELESS PERSONAL COMMUNICATIONS, SPRINGER, DORDRECHT, NL, vol. 12, no. 1, 1 January 2000 (2000-01-01), pages 55 - 70, XP000896725, ISSN: 0929-6212, DOI: DOI:10.1023/A:1008864109605
PETER HAMMARBERG ET AL: "A Comparison of DFT and SVD Based Channel Estimation in MIMO OFDM Systems", PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, 2006 IEEE 17TH INTER NATIONAL SYMPOSIUM ON, IEEE, PI, 1 September 2006 (2006-09-01), pages 1 - 5, XP031023652, ISBN: 978-1-4244-0329-5, DOI: DOI:10.1109/PIMRC.2006.254233
MICHELE MORELLI ET AL: "A Comparison of Pilot-Aided Channel Estimation Methods for OFDM Systems", IEEE TRANSACTIONS ON SIGNAL PROCESSING, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 49, no. 12, 1 December 2001 (2001-12-01), XP011059500, ISSN: 1053-587X
YONG-HWA KIM ET AL: "Joint channel estimation with phase noise suppression and soft decision decoding scheme for OFDM-based WLANs", VEHICULAR TECHNOLOGY CONFERENCE, 2005. VTC-2005-FALL. 2005 IEEE 62ND DALLAS, TX, USA 25-28 SEPT., 2005, PISCATAWAY, NJ, USA,IEEE, vol. 1, 28 September 2005 (2005-09-28), pages 161 - 165, XP010878442, ISBN: 978-0-7803-9152-9, DOI: DOI:10.1109/VETECF.2005.1557492
PETER HAMMARBERG ET AL: "A Comparison of DFT and SVD Based Channel Estimation in MIMO OFDM Systems", PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, 2006 IEEE 17TH INTER NATIONAL SYMPOSIUM ON, IEEE, PI, 1 September 2006 (2006-09-01), pages 1 - 5, XP031023652, ISBN: 978-1-4244-0329-5, DOI: DOI:10.1109/PIMRC.2006.254233
MICHELE MORELLI ET AL: "A Comparison of Pilot-Aided Channel Estimation Methods for OFDM Systems", IEEE TRANSACTIONS ON SIGNAL PROCESSING, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 49, no. 12, 1 December 2001 (2001-12-01), XP011059500, ISSN: 1053-587X
YONG-HWA KIM ET AL: "Joint channel estimation with phase noise suppression and soft decision decoding scheme for OFDM-based WLANs", VEHICULAR TECHNOLOGY CONFERENCE, 2005. VTC-2005-FALL. 2005 IEEE 62ND DALLAS, TX, USA 25-28 SEPT., 2005, PISCATAWAY, NJ, USA,IEEE, vol. 1, 28 September 2005 (2005-09-28), pages 161 - 165, XP010878442, ISBN: 978-0-7803-9152-9, DOI: DOI:10.1109/VETECF.2005.1557492
Attorney, Agent or Firm:
CHAMBERLAIN, Alan (Redcliff Quay120 Redcliff Street, Bristol Avon BS1 6HU, GB)
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