(19)

(11)

EP 2 409 520 A1

(12)

(43) Date of publication: 25.01.2012 Bulletin 2012/04 (21) Application number: 09779160.2 (22) Date of filing: 16.03.2009

(51) International Patent Classification (IPC):  H04W 36/04(2009.01) (86) International application number: PCT/EP2009/053077 (87) International publication number: WO 2010/105665 (23.09.2010 Gazette 2010/38)

(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 TR (71) Applicant: Nokia Siemens Networks Oy 02610 Espoo (FI)	(72) Inventors: PEKONEN, Johanna, Katariina FI-02110 Espoo (FI) TOSKALA, Antti, Anton FI-02180 Espoo (FI)