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(11)

EP 4 205 360 A1

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(43) Date of publication: 05.07.2023 Bulletin 2023/27 (21) Application number: 20771246.4 (22) Date of filing: 08.09.2020

(51) International Patent Classification (IPC):  H04L 12/18(2006.01) H04L 45/00(2022.01) H04L 9/40(2022.01) H04L 45/16(2022.01) (52) Cooperative Patent Classification (CPC): H04L 45/38; H04L 12/18; H04L 67/02; H04L 69/22; H04L 67/51; H04L 61/30; H04L 61/4541; H04L 61/58; H04L 45/645; H04L 49/201 (86) International application number: PCT/EP2020/074988 (87) International publication number: WO 2022/053122 (17.03.2022 Gazette 2022/11)

(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 Sonnenstraße 33 80331 München 80331 München (DE)