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(11)

EP 4 578 171 A1

(12)

(43) Date of publication: 02.07.2025 Bulletin 2025/27 (21) Application number: 23776130.9 (22) Date of filing: 23.08.2023

(51) International Patent Classification (IPC):  H04L 47/24(2022.01) H04L 47/2416(2022.01) H04L 47/2475(2022.01) H04L 47/2408(2022.01) H04L 47/2425(2022.01) H04W 28/02(2009.01) (52) Cooperative Patent Classification (CPC): H04W 28/0268; H04W 28/0263; H04L 47/24; H04L 47/2408; H04L 47/2416; H04L 47/2433; H04L 47/2475 (86) International application number: PCT/US2023/030933 (87) International publication number: WO 2024/044253 (29.02.2024 Gazette 2024/09)

(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: 23.08.2022 US 202263400282 P 22.08.2023 US 202318236573 (71) Applicant: Meta Platforms Technologies, LLC Menlo Park, CA 94025 (US)	(72) Inventors: JI, Zhu Menlo Park, California 94025 (US) CHAN, Yee Sin Menlo Park, California 94025 (US) ZHANG, Xiaodi Menlo Park, California 94025 (US) QU, Qi Menlo Park, California 94025 (US) (74) Representative: Murgitroyd & Company  165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)