(19)

(11)

EP 2 561 371 A1

(12)

(43) Date of publication: 27.02.2013 Bulletin 2013/09 (21) Application number: 10762907.3 (22) Date of filing: 30.09.2010

(51) International Patent Classification (IPC):  G01R 29/10(2006.01) (86) International application number: PCT/EP2010/064550 (87) International publication number: WO 2011/131255 (27.10.2011 Gazette 2011/43)

(84) Designated Contracting States: AL 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 (30) Priority: 22.04.2010 WO PCT/EP2010/055327 (71) Applicant: Nokia Siemens Networks Oy 02610 Espoo (FI)	(72) Inventor: PALLONEN, Jorma Tapio FIN-02400 Kirkkonummi (FI)