(19)

(11)

EP 2 481 229 A1

(12)

(43) Date of publication: 01.08.2012 Bulletin 2012/31 (21) Application number: 09783214.1 (22) Date of filing: 21.09.2009

(51) International Patent Classification (IPC):  H04W 12/00(2009.01) (86) International application number: PCT/EP2009/062162 (87) International publication number: WO 2011/032605 (24.03.2011 Gazette 2011/12)

(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 MK MT NL NO PL PT RO SE SI SK SM TR (71) Applicant: Nokia Siemens Networks OY 02610 Espoo (FI)	(72) Inventors: WAZ-AMBROZEWICZ, Andrzej Wroclaw (PL) PISOWACKI, Patryk PL-50224 Wroclaw (PL) PAKULSKI, Maciej PL-55003 Czernica (PL)