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(11)

EP 4 548 554 A1

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(43) Date of publication: 07.05.2025 Bulletin 2025/19 (21) Application number: 23748401.9 (22) Date of filing: 29.06.2023

(51) International Patent Classification (IPC):  H04L 41/0806(2022.01) H04L 12/28(2006.01) H04L 67/125(2022.01) H04L 41/08(2022.01) G06F 9/455(2018.01) H04L 41/046(2022.01) (52) Cooperative Patent Classification (CPC): H04L 41/0806; H04L 41/0886; H04L 41/046; H04L 12/2807; H04L 12/2814; G06F 9/455; H04L 67/12; H04L 67/564; H04L 67/34; H04L 67/303 (86) International application number: PCT/US2023/069397 (87) International publication number: WO 2024/006920 (04.01.2024 Gazette 2024/01)

(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: KH MA MD TN (30) Priority: 30.06.2022 US 202217810321 30.06.2022 US 202217810324 (71) Applicant: Amazon Technologies, Inc. Seattle, WA 98108-1226 (US)	(72) Inventors: ZOUALFAGHARI, MohammadHossein Seattle, Washington 98109-5210 (US) RANE, Ajay Bhimrao Seattle, Washington 98109-5210 (US) HARWANI, Robin Satish Seattle, Washington 98109-5210 (US) (74) Representative: D Young & Co LLP  3 Noble Street London EC2V 7BQ London EC2V 7BQ (GB)