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(11)

EP 4 817 271 A1

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(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 25703389.4 (22) Date of filing: 15.01.2025

(51) International Patent Classification (IPC):  H04L 69/28(2022.01) H04L 9/40(2022.01) (52) Cooperative Patent Classification (CPC): H04L 63/0428; H04L 69/28 (86) International application number: PCT/EP2025/050913 (87) International publication number: WO 2025/162721 (07.08.2025 Gazette 2025/32)

(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: 29.01.2024 EP 24154520 (71) Applicant: Siemens Aktiengesellschaft 80333 München (DE)	(72) Inventors: FISCHER, Bernhard 1210 Wien (AT) CECH, Christian 1210 Wien (AT) CHILKU, Bekim 1110 Wien (AT) HINTERSTOISSER, Thomas 1210 Wien (AT) MATSCHNIG, Martin 1210 Wien (AT) (74) Representative: Siemens Patent Attorneys  Postfach 22 16 34 80506 München 80506 München (DE)