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EP 4 200 979 A1

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(43) Date of publication: 28.06.2023 Bulletin 2023/26 (21) Application number: 20775249.4 (22) Date of filing: 17.09.2020

(51) International Patent Classification (IPC):  H03F 3/45(2006.01) H03F 3/193(2006.01) H03G 1/00(2006.01) H03F 1/42(2006.01) H03F 3/24(2006.01) H03G 3/30(2006.01) (52) Cooperative Patent Classification (CPC): H03F 1/42; H03F 3/45188; H03F 2203/45686; H03F 2200/168; H03F 2203/45372; H03F 2203/45374; H03G 1/0029; H03F 3/193; H03F 3/245; H03F 2200/451; H03G 3/3084; H03G 5/28 (86) International application number: PCT/EP2020/075925 (87) International publication number: WO 2022/058011 (24.03.2022 Gazette 2022/12)

(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: MUSIO, Antonio 80992 Munich (DE) PIAZZON, Luca 80992 Munich (DE) (74) Representative: Isarpatent  Patent- und Rechtsanwälte Barth Charles Hassa Peckmann & Partner mbB Friedrichstrasse 31 80801 München 80801 München (DE)