(19)

(11)

EP 4 824 975 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 23961224.5 (22) Date of filing: 15.12.2023

(51) International Patent Classification (IPC):  H04L 1/1812(2023.01) (52) Cooperative Patent Classification (CPC): H04L 1/1858; H04L 1/1896; H04L 1/1825; H04B 7/0695; H04W 74/0833; H04L 5/0055; H04L 5/0091 (86) International application number: PCT/CN2023/139292 (87) International publication number: WO 2025/123368 (19.06.2025 Gazette 2025/25)

(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: Shenzhen TCL New Technology Co., Ltd. Shenzhen, Guangdong 518052 (CN)	(72) Inventor: DENG, Yiwei Shenzhen, Guangdong 518052 (CN) (74) Representative: Murgitroyd & Company  165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)