(19)

(11)

EP 4 817 186 A1

(12)

(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24901923.3 (22) Date of filing: 22.02.2024

(51) International Patent Classification (IPC):  H03M 13/13(2006.01) (52) Cooperative Patent Classification (CPC): H03M 13/618; H03M 13/6368; H03M 13/6306; H03M 13/2906; H03M 13/13; H03M 13/2778 (86) International application number: PCT/CN2024/078045 (87) International publication number: WO 2025/123490 (19.06.2025 Gazette 2025/25)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 12.12.2023 US 202363608940 P (71) Applicant: Huawei Technologies Co., Ltd. Shenzhen, Guangdong 518129 (CN)	(72) Inventors: ZHANG, Huazi Kanata, Ontario 231 (CA) MA, Jianglei Kanata, Ontario 231 (CA) TONG, Wen Kanata, Ontario 231 (CA) (74) Representative: Thun, Clemens  Mitscherlich PartmbB Karlstraße 7 80333 München 80333 München (DE)