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(11)

EP 4 512 111 A1

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(43) Date of publication: 26.02.2025 Bulletin 2025/09 (21) Application number: 22725861.3 (22) Date of filing: 27.04.2022

(51) International Patent Classification (IPC):  H04S 7/00(2006.01) H04R 5/033(2006.01) H04R 5/027(2006.01) (52) Cooperative Patent Classification (CPC): H04S 7/306; H04S 7/304; H04S 2400/15; H04S 2420/01; H04R 5/027; H04R 5/033 (86) International application number: PCT/EP2022/061169 (87) International publication number: WO 2023/208333 (02.11.2023 Gazette 2023/44)

(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: PANG, Liyun 80992 Munich (DE) GROSCHE, Peter 80992 Munich (DE) XU, Dezhu 80992 Munich (DE) SAINI, Shivam 80992 Munich (DE) (74) Representative: Thun, Clemens  Mitscherlich PartmbB Patent- und Rechtsanwälte Karlstraße 7 80333 München 80333 München (DE)