(19)

(11)

EP 4 128 681 A1

(12)

(43) Date of publication: 08.02.2023 Bulletin 2023/06 (21) Application number: 20715322.2 (22) Date of filing: 26.03.2020

(51) International Patent Classification (IPC):  H04L 29/06(1990.01) H04W 4/90(2018.01) H04W 4/10(2009.01) (52) Cooperative Patent Classification (CPC): H04W 4/10; H04L 65/4061; H04L 65/1069; H04L 65/1046; H04W 4/90; H04M 2242/04; H04W 4/42 (86) International application number: PCT/EP2020/058533 (87) International publication number: WO 2021/190754 (30.09.2021 Gazette 2021/39)

(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 Technologies Oy 02610 Espoo (FI)	(72) Inventors: LEIS, Peter 82377 Penzberg (DE) GKATZIKIS, Lazaros 92130 Issy-les-Moulineaux (FR) (74) Representative: Nokia EPO representatives  Nokia Technologies Oy Karakaari 7 02610 Espoo 02610 Espoo (FI)