(19)

(11)

EP 1 847 078 A1

(12)

(43) Date of publication: 24.10.2007 Bulletin 2007/43 (21) Application number: 06704375.2 (22) Date of filing: 30.01.2006

(51) International Patent Classification (IPC):  H04L 12/56(2006.01) (86) International application number: PCT/FI2006/050047 (87) International publication number: WO 2006/082284 (10.08.2006 Gazette 2006/32)

(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 (30) Priority: 01.02.2005 FI 20055046 (71) Applicant: Nokia Corporation 02150 Espoo (FI)	(72) Inventor: DAVYDOV, Alexander FI-00500 Helsinki (FI) (74) Representative: Honkasalo, Terhi Marjut Anneli  Kolster OY AB P.O. Box 148 (Iso Roobertinkatu 23) Helsinki 00121 Helsinki 00121 (FI)