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EP 4 740 355 A1

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(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 24772478.4 (22) Date of filing: 26.08.2024

(51) International Patent Classification (IPC):  H04L 5/00(2006.01) H04B 7/06(2006.01) (52) Cooperative Patent Classification (CPC): H04L 5/0057; H04L 5/0094; H04L 5/005; H04L 5/0023; H04B 7/0695 (86) International application number: PCT/US2024/043822 (87) International publication number: WO 2025/049370 (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: 30.08.2023 US 202363579666 P (71) Applicant: Apple Inc. Cupertino, CA 95014 (US)

(72) Inventors: HE, Hong Cupertino, California 95014 (US) BHAMRI, Ankit Cupertino, California 95014 (US) YE, Chunxuan Cupertino, California 95014 (US) ZHANG, Dawei Cupertino, California 95014 (US) SUN, Haitong Cupertino, California 95014 (US) OTERI, Oghenekome Cupertino, California 95014 (US) ZENG, Wei Cupertino, California 95014 (US) (74) Representative: COPA Copenhagen Patents  Rosenvængets Allé 25 2100 Copenhagen Ø 2100 Copenhagen Ø (DK)