(19)

(11)

EP 4 573 838 A1

(12)

(43) Date of publication: 25.06.2025 Bulletin 2025/26 (21) Application number: 23798617.9 (22) Date of filing: 29.09.2023

(51) International Patent Classification (IPC):  H04W 76/18(2018.01) H04W 76/19(2018.01) (52) Cooperative Patent Classification (CPC): H04W 76/19; H04W 76/18; H04W 36/0079 (86) International application number: PCT/US2023/075643 (87) International publication number: WO 2024/073748 (04.04.2024 Gazette 2024/14)

(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: 29.09.2022 US 202263377723 P (71) Applicant: Google LLC Mountain View, CA 94043 (US)	(72) Inventor: WU, Chih-Hsiang Mountain View, CA 94043 (US) (74) Representative: Marks & Clerk GST  1 New York Street Manchester M1 4HD Manchester M1 4HD (GB)