(19)

(11)

EP 4 740 312 A1

(12)

(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 23765158.3 (22) Date of filing: 03.08.2023

(51) International Patent Classification (IPC):  H04B 7/0456(2017.01) H04B 7/06(2006.01) (52) Cooperative Patent Classification (CPC): H04B 7/0465; H04B 7/0469; H04B 7/0473; H04B 7/0486; H04B 7/0626; H04B 7/0628; H04B 7/063; H04B 7/0632; H04B 7/0639 (86) International application number: PCT/CN2023/110908 (87) International publication number: WO 2025/025192 (06.02.2025 Gazette 2025/06)

(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 (71) Applicant: Google LLC Mountain View, CA 94043 (US)	(72) Inventors: FWU, Jong-Kae Sunnyvale California 94089 (US) ZHANG, Yushu Beijing 100190 (CN) (74) Representative: Marks & Clerk GST  1 New York Street Manchester M1 4HD Manchester M1 4HD (GB)