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(11)

EP 4 229 847 A1

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(43) Date of publication: 23.08.2023 Bulletin 2023/34 (21) Application number: 20810962.9 (22) Date of filing: 20.11.2020

(51) International Patent Classification (IPC):  H04L 45/00(2022.01) H04L 65/40(2022.01) (52) Cooperative Patent Classification (CPC): H04L 45/04; H04L 45/742; H04L 67/51; H04L 67/63 (86) International application number: PCT/EP2020/082906 (87) International publication number: WO 2022/106027 (27.05.2022 Gazette 2022/21)

(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: Huawei Technologies Co., Ltd. Shenzhen, Guangdong 518129 (CN)	(72) Inventor: TROSSEN, Dirk 80992 Munich (DE) (74) Representative: Roth, Sebastian  Mitscherlich PartmbB Patent- und Rechtsanwälte Karlstraße 7 80333 München 80333 München (DE)