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(11)

EP 4 817 238 A2

(12)

(88) Date of publication A3: 27.11.2025 (43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24922678.8 (22) Date of filing: 20.11.2024

(51) International Patent Classification (IPC):  H04L 9/08(2006.01) H04W 12/069(2021.01) H04W 12/065(2021.01) (52) Cooperative Patent Classification (CPC): H04W 12/065; H04L 9/0852; H04W 12/069; H04L 9/0891 (86) International application number: PCT/US2024/056738 (87) International publication number: WO 2025/183766 (04.09.2025 Gazette 2025/36)

(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: 28.11.2023 US 202318521006 (71) Applicant: Cisco Technology, Inc. San Jose, California 95134-1706 (US)	(72) Inventors: INAMDAR, Amjad Bengaluru 560077 (IN) SHETH, Sujal Rajendrabhai Naranpura Ahmedabad 380063 (IN) V. A., Anoop Bengaluru 560114 (IN) BALAKRISHNAN, Krishna Priya Palakkad Kerala, 678001 (ID) (74) Representative: Mathys & Squire  32 London Bridge Street The Shard London SE1 9SG London SE1 9SG (GB)