(19)

(11)

EP 3 871 077 A1

(12)

(43) Date of publication: 01.09.2021 Bulletin 2021/35 (21) Application number: 18795482.1 (22) Date of filing: 24.10.2018

(51) International Patent Classification (IPC):  G06F 8/41(2018.01) (86) International application number: PCT/EP2018/079222 (87) International publication number: WO 2020/083487 (30.04.2020 Gazette 2020/18)

(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 Designated Validation States: KH MA MD TN (71) Applicant: Nokia Solutions and Networks Oy 02610 Espoo (FI)	(72) Inventors: AIT AOUDIA, Fayçal 92210 SAINT-CLOUD (FR) ENRICI, Andrea 92340 BOURG-LA-REINE (FR) (74) Representative: Nokia EPO representatives  Nokia Technologies Oy Karakaari 7 02610 Espoo 02610 Espoo (FI)