(19)

(11)

EP 2 896 151 A1

(12)

(43) Date of publication: 22.07.2015 Bulletin 2015/30 (21) Application number: 12761605.0 (22) Date of filing: 17.09.2012

(51) International Patent Classification (IPC):  H04L 1/00(2006.01) H04L 1/20(2006.01) (86) International application number: PCT/EP2012/068252 (87) International publication number: WO 2014/040655 (20.03.2014 Gazette 2014/12)

(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 RS SE SI SK SM TR Designated Extension States: BA ME (71) Applicant: Nokia Solutions and Networks Oy 02610 Espoo (FI)	(72) Inventors: ZIRWAS, Wolfgang 81249 München (DE) FAERBER, Michael 82515 Wolfratshausen (DE) SCHWARZBAUER, Hanns Juergen 82194 Gröbenzell (DE) GORA, Jacek PL-50-520 Wroclaw (PL) VIHRIALA, Jaakko Eino Ilmari FI-90800 Oulu (FI)