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EP 4 427 298 A1

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(43) Date of publication: 11.09.2024 Bulletin 2024/37 (21) Application number: 21815425.0 (22) Date of filing: 16.11.2021

(51) International Patent Classification (IPC):  H01Q 1/24(2006.01) H01Q 21/06(2006.01) H01Q 3/26(2006.01) H01Q 1/52(2006.01) H01Q 21/24(2006.01) (52) Cooperative Patent Classification (CPC): H01Q 1/246; H01Q 1/523; H01Q 21/062; H01Q 21/24; H01Q 3/267 (86) International application number: PCT/EP2021/081837 (87) International publication number: WO 2023/088537 (25.05.2023 Gazette 2023/21)

(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) Inventors: GENTILI, Fabrizio 80992 Munich (DE) BISCONTINI, Bruno 80992 Munich (DE) GONG, Zhi 80992 Munich (DE) SEGADOR ALVAREZ, Juan 80992 Munich (DE) MURILLO BARRERA, Alejandro 80992 Munich (DE) (74) Representative: Maiwald GmbH  Engineering Elisenhof Elisenstrasse 3 80335 München 80335 München (DE)