Telecommunications – Transmitter – Diversity
Reexamination Certificate
2007-02-20
2007-02-20
Nguyen, Tony T. (Department: 2618)
Telecommunications
Transmitter
Diversity
C455S067130, C455S114200, C455S296000, C375S347000
Reexamination Certificate
active
10766023
ABSTRACT:
A method and a circuit (44) for estimating channel coefficients in a multi carrier transmit diversity system operating in accordance with a block-coding scheme is described. The method comprises determining from a receive signal (Y) for each channel estimated channel coefficients (ĥ) comprising interference components from adjacent channels artificially introduced during the estimation, deriving estimates for interference components and determining interference-compensated estimates (ĤF+IC) for the channel coefficients on the basis of the estimates for the interference components.
REFERENCES:
patent: 5822380 (1998-10-01), Bottomley
patent: 5943606 (1999-08-01), Kremm et al.
patent: 6028900 (2000-02-01), Taura et al.
patent: 6088408 (2000-07-01), Calderbank et al.
patent: 6108517 (2000-08-01), Arslan et al.
patent: 6256486 (2001-07-01), Barany et al.
patent: 6597750 (2003-07-01), Knutson et al.
patent: 2 798 542 (2001-03-01), None
Li et al; “Transmitter Diversity for OFDM Systems”; IEEE, Journal on Selec. Areas, vol. 17, No. 7, Jul. 1999, pp. 1233-1243.
Mudulodu et al; “A Transmit Diversity Scheme”; Proc. Globecom, San Francisco, Nov. 2000, pp. 1089-1093.
ETSI TR 101 683, Broadband Radio Access Networks (BRAN), System Overview, V1.1.1, Feb. 2000.
ETSI TS 101 475, Broadband Radio Access Networks (BRAN), Hiperlan Type 2, Physical (PHY) Layer, V1.1.1, Apr. 2000.
International Search Report mailed Dec. 10, 2002 in corresponding PCT Application No. PCT/EP02/06403.
International Preliminary Examination Report mailed Nov. 12, 2003 in corresponding PCT Application No. PCT/EP02/06403.
Pauli Mathias
Sachse Eric
Nguyen Tony T.
Nixon & Vanderhye P.C.
Telefonaktiebolaget LM Ericsson (publ)
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