(19)

(11)

EP 4 771 778 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 23797644.4 (22) Date of filing: 29.09.2023

(51) International Patent Classification (IPC):  H04B 7/06(2006.01) (52) Cooperative Patent Classification (CPC): H04B 7/06964 (86) International application number: PCT/CN2023/123038 (87) International publication number: WO 2025/065712 (03.04.2025 Gazette 2025/14)

(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 (71) Applicant: Google LLC Mountain View, CA 94043 (US)	(72) Inventor: ZHANG, Yushu Beijing 100190 (CN) (74) Representative: Marks & Clerk GST  1 New York Street Manchester M1 4HD Manchester M1 4HD (GB)