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(11)

EP 4 356 647 A1

(12)

(43) Date of publication: 24.04.2024 Bulletin 2024/17 (21) Application number: 21749167.9 (22) Date of filing: 23.07.2021

(51) International Patent Classification (IPC):  H04W 36/00(2009.01) (52) Cooperative Patent Classification (CPC): H04W 8/18; H04W 36/12; H04W 8/20; H04W 36/0016 (86) International application number: PCT/EP2021/070722 (87) International publication number: WO 2023/001386 (26.01.2023 Gazette 2023/04)

(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) Inventors: HECKER, Artur 80992 Munich (DE) XIAO, Xun 80992 Munich (DE) (74) Representative: Roth, Sebastian  Mitscherlich PartmbB Patent- und Rechtsanwälte Karlstraße 7 80333 München 80333 München (DE)