Title:
METHOD AND DEVICE FOR SUPPRESSING INTERFERENCE IN COMMUNICATION NETWORKS USING FREQUENCY SWITCHED TRANSMIT DIVERSITY CODING
Document Type and Number:
WIPO Patent Application WO/2013/050985
Kind Code:
A3
Abstract:
First and second received signals (1502,1504) are received at a communication device, the first and second received signals comprising, respectively, reference signals (1502) and data signals (1504). Estimated channel vectors (1508) are calculated from the first received signals (1502), and estimated data covariance matrices (1512) are calculated from the second received signals (1504). A plurality of combining weight vectors (1516) are determined based on the estimated channel vectors (1508) and the estimated data covariance ma¬ trices (1512). The second received signals (1504) are then combined with the plurality of combining weight vectors (1516) to obtain a plurality of combined signals (1520), wherein interference in the second received signals (1504) has been suppressed in the plurality of combined signals (1520).
Inventors:
CHENG JUNG-FU (US)
WANG YI-PIN ERIC (US)
FRENNE MATTIAS (SE)
FALAHATI SOROUR (SE)
WANG YI-PIN ERIC (US)
FRENNE MATTIAS (SE)
FALAHATI SOROUR (SE)
Application Number:
PCT/IB2012/055403
Publication Date:
May 30, 2013
Filing Date:
October 06, 2012
Export Citation:
Assignee:
ERICSSON TELEFON AB L M (SE)
International Classes:
H04B7/08
Other References:
RENESAS MOBILE EUROPE LTD: "Interference aware receiver modeling at system level", 3GPP DRAFT; R1-111562, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Barcelona, Spain; 20110509, 3 May 2011 (2011-05-03), XP050491209
ALEXANDER MALTSEV ET AL: "Comparative Analysis of Spatial Covariance Matrix Estimation Methods in OFDM Communication Systems", SIGNAL PROCESSING AND INFORMATION TECHNOLOGY, 2006 IEEE INTERNATIONAL SYMPOSIUM ON, IEEE, PI, 1 August 2006 (2006-08-01), pages 551 - 555, XP031002490, ISBN: 978-0-7803-9753-8
CRISTINA CIOCHINA ET AL: "Mapping techniques for transmit diversity precoding in SC-FDMA systems with four transmit antennas", IEEE 20TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS (PIMRC 2009), IEEE, PISCATAWAY, NJ, USA, 13 September 2009 (2009-09-13), pages 2504 - 2508, XP031659601, ISBN: 978-1-4244-5122-7
ALEXANDER MALTSEV ET AL: "Comparative Analysis of Spatial Covariance Matrix Estimation Methods in OFDM Communication Systems", SIGNAL PROCESSING AND INFORMATION TECHNOLOGY, 2006 IEEE INTERNATIONAL SYMPOSIUM ON, IEEE, PI, 1 August 2006 (2006-08-01), pages 551 - 555, XP031002490, ISBN: 978-0-7803-9753-8
CRISTINA CIOCHINA ET AL: "Mapping techniques for transmit diversity precoding in SC-FDMA systems with four transmit antennas", IEEE 20TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS (PIMRC 2009), IEEE, PISCATAWAY, NJ, USA, 13 September 2009 (2009-09-13), pages 2504 - 2508, XP031659601, ISBN: 978-1-4244-5122-7
Attorney, Agent or Firm:
CASON, Todd A. et al. (MS EVR 1-C-11Plano, Texas, US)
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