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(11)

EP 4 771 833 A1

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(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24772536.9 (22) Date of filing: 30.08.2024

(51) International Patent Classification (IPC):  H04L 47/2441(2022.01) H04W 28/12(2009.01) H04W 28/02(2009.01) (52) Cooperative Patent Classification (CPC): H04L 47/2441; H04L 47/2425; H04L 47/19 (86) International application number: PCT/US2024/044711 (87) International publication number: WO 2025/049935 (06.03.2025 Gazette 2025/10)

(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: 01.09.2023 US 202363580241 P 10.10.2023 US 202363589122 P 28.08.2024 US 202418817876 (71) Applicant: Cisco Technology, Inc. San Jose, California 95134-1706 (US)

(72) Inventors: SMITH, Malcolm M. Richardson, Texas 75082 (US) HART, Brian D. Sunnyvale, California 94087 (US) CHIRREDDY, Venkataprasad Milpitas, California 95035 (US) KATABATHUNI, Sanjay K. Fremont, California 94539 (US) GUPTA, Binita San Diego, California 92127 (US) (74) Representative: Noble, Nicholas et al Kilburn & Strode LLP Lacon London 84 Theobalds Road London WC1X 8NL London WC1X 8NL (GB)