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EP 4 183 044 A1

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(43) Date of publication: 24.05.2023 Bulletin 2023/21 (21) Application number: 20746184.9 (22) Date of filing: 24.07.2020

(51) International Patent Classification (IPC):  H03F 3/08(2006.01) H03F 3/24(2006.01) H03F 3/195(2006.01) H03F 3/45(2006.01) (52) Cooperative Patent Classification (CPC): H03F 3/087; H03F 3/45475; H03F 3/245; H03F 3/195; H03F 2200/451; H03F 3/45089; H03F 2203/45318; H03F 2203/45316; H03F 2203/45311; H03F 2203/45512; H03F 2203/45058 (86) International application number: PCT/EP2020/070917 (87) International publication number: WO 2022/017620 (27.01.2022 Gazette 2022/04)

(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: ASERO, Claudio 80992 Munich (DE) ROSSI, Paolo 80992 Munich (DE) LENOCI, Francesco 80992 Munich (DE) (74) Representative: Isarpatent  Patent- und Rechtsanwälte Barth Charles Hassa Peckmann & Partner mbB Friedrichstrasse 31 80801 München 80801 München (DE)