(19)

(11)

EP 2 324 616 A1

(12)

(43) Date of publication: 25.05.2011 Bulletin 2011/21 (21) Application number: 08804099.3 (22) Date of filing: 12.09.2008

(51) International Patent Classification (IPC):  H04L 29/12(2006.01) H04W 76/02(2009.01) H04W 8/26(2009.01) H04W 92/18(2009.01) (86) International application number: PCT/EP2008/062134 (87) International publication number: WO 2010/028690 (18.03.2010 Gazette 2010/11)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (71) Applicant: Nokia Corporation 02150 Espoo (FI)	(72) Inventors: DOPPLER, Klaus Franz FI-02200 Espoo (FI) RINNE, Mika Petri Olavi FI-02320 Espoo (FI) WIJTING, Carl Simon FI-00280 Helsinki (FI) RIBEIRO, Cássio Barboza FI-02230 Espoo (FI) HUGL, Klaus FI-00200 Helsinki (FI) (74) Representative: Aarnio, Ari Antero  Nokia Corporation Intellectual Property Department PO Box 407 00045 Nokia Group 00045 Nokia Group (FI)