(19)

(11)

EP 4 825 006 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 25707539.0 (22) Date of filing: 23.01.2025

(51) International Patent Classification (IPC):  H04L 9/40(2022.01) H04W 12/10(2021.01) H04W 12/03(2021.01) (52) Cooperative Patent Classification (CPC): H04L 63/205; H04W 12/03; H04W 12/10 (86) International application number: PCT/US2025/012737 (87) International publication number: WO 2025/165641 (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 US 202463626298 P (71) Applicant: Google LLC Mountain View, CA 94043 (US)	(72) Inventors: HUANG-FU, Chien-Chun Mountain View, California 94043 (US) WU, Chih-Hsiang Mountain View, California 94043 (US) (74) Representative: Marks & Clerk GST  1 New York Street Manchester M1 4HD Manchester M1 4HD (GB)