(19)

(11)

EP 4 104 326 A1

(12)

(43) Date of publication: 21.12.2022 Bulletin 2022/51 (21) Application number: 20839025.2 (22) Date of filing: 22.12.2020

(51) International Patent Classification (IPC):  H04L 1/00(2006.01) H04L 5/14(2006.01) H04L 5/00(2006.01) (52) Cooperative Patent Classification (CPC): H04L 5/0044; H04L 5/1453; H04L 1/0005; H04L 1/0011; H04L 1/0016; H04L 1/0025 (86) International application number: PCT/EP2020/087553 (87) International publication number: WO 2021/160331 (19.08.2021 Gazette 2021/33)

(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 (30) Priority: 11.02.2020 US 202062972961 P (71) Applicant: Nokia Technologies Oy 02610 Espoo (FI)	(72) Inventor: JAYASINGHE LADDU, Keeth Saliya 02140 Espoo (FI) (74) Representative: Nokia EPO representatives  Nokia Technologies Oy Karakaari 7 02610 Espoo 02610 Espoo (FI)