(19)
(11) EP 1 821 407 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
26.08.2009 Bulletin 2009/35

(45) Mention of the grant of the patent:
15.07.2009 Bulletin 2009/29

(21) Application number: 06075405.8

(22) Date of filing: 21.02.2006
(51) International Patent Classification (IPC): 
H03H 17/04(2006.01)
 H04L 25/02(2006.01)

(54)

OFDM channel estimation systems

System zur OFDM-Kanalschätzung

Système d'estimation de canal d'OFDM

(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

(43) Date of publication of application:
22.08.2007 Bulletin 2007/34

(73) Proprietor: Frontier Silicon Limited
Sawston Cambridgeshire CB2 4LJ (GB)

(72) Inventor:
  • McNally, Conor
    Dublin 8 (IE)

(74) Representative: Martin, Philip John 
Marks & Clerk LLP 62-68 Hills Road
Cambridge CB2 1LA
Cambridge CB2 1LA (GB)


(56) References cited: : 
EP-A- 1 580 948
 WO-A-99/60940
   
  • KIM C W ET AL: "Approximately linear phase IIR polyphase filter design" SPEECH PROCESSING 2, VLSI, UNDERWATER SIGNAL PROCESSING. TORONTO, MAY 14 - 17, 1991, INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH & SIGNAL PROCESSING. ICASSP, NEW YORK, IEEE, US, vol. VOL. 2 CONF. 16, 14 April 1991 (1991-04-14), pages 1621-1624, XP010043211 ISBN: 0-7803-0003-3
  • HUTTER A A ET AL: "Channel estimation for mobile OFDM systems" VEHICULAR TECHNOLOGY CONFERENCE, 1999. VTC 1999 - FALL. IEEE VTS 50TH AMSTERDAM, NETHERLANDS 19-22 SEPT. 1999, PISCATAWAY, NJ, USA,IEEE, US, vol. 1, 19 September 1999 (1999-09-19), pages 305-309, XP010352881 ISBN: 0-7803-5435-4
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).