(19)

(11)

EP 4 817 309 A1

(12)

(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 23930028.8 (22) Date of filing: 01.12.2023

(51) International Patent Classification (IPC):  H04W 16/28(2009.01) (52) Cooperative Patent Classification (CPC): H04B 7/0695; H04L 5/0053 (86) International application number: PCT/CN2023/135876 (87) International publication number: WO 2024/198462 (03.10.2024 Gazette 2024/40)

(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: Lenovo (Beijing) Limited Beijing 100085 (CN)	(72) Inventors: LING, Wei Beijing 100094 (CN) LIU, Bingchao Beijing 100094 (CN) ZHU, Chenxi Beijing 100094 (CN) (74) Representative: Openshaw & Co.  8 Castle Street Farnham, Surrey GU9 7HR Farnham, Surrey GU9 7HR (GB)