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EP 4 309 312 A1

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(43) Date of publication: 24.01.2024 Bulletin 2024/04 (21) Application number: 21719118.8 (22) Date of filing: 14.04.2021

(51) International Patent Classification (IPC):  H04L 1/00(2006.01) H04L 5/00(2006.01) H03M 13/00(2006.01) H04W 74/08(2009.01) H04B 7/08(2006.01) H03M 13/51(2006.01) (52) Cooperative Patent Classification (CPC): H04L 1/0042; H04L 1/0048; H03M 13/63; H03M 13/51; H04L 1/005; H04B 7/04 (86) International application number: PCT/EP2021/059669 (87) International publication number: WO 2022/218522 (20.10.2022 Gazette 2022/42)

(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) Applicants: Huawei Technologies Co., Ltd. Shenzhen, Guangdong 518129 (CN) Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. 80686 München (DE)	(72) Inventors: UTKOVSKI, Zoran 80686 Munich (DE) AGOSTINI, Patrick 80686 Munich (DE) KASPARICK, Martin 80686 Munich (DE) (74) Representative: Körber, Martin Hans  Mitscherlich PartmbB Patent- und Rechtsanwälte Karlstraße 7 80333 München 80333 München (DE)