(19)

(11)

EP 4 817 331 A1

(12)

(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 23960502.5 (22) Date of filing: 06.12.2023

(51) International Patent Classification (IPC):  H04W 52/18(2009.01) H04W 88/04(2009.01) (52) Cooperative Patent Classification (CPC): H04W 88/04; H04W 52/146; H04W 52/288; H04W 52/16; H04W 52/40; H04W 52/247; H04W 52/50; H04W 52/367; H04W 52/248 (86) International application number: PCT/CN2023/136839 (87) International publication number: WO 2025/118189 (12.06.2025 Gazette 2025/24)

(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: ZTE Corporation Shenzhen, Guangdong 518057 (CN)	(72) Inventors: ZHOU, Shuai Shenzhen, Guangdong 518057 (CN) KOU, Shuaihua Shenzhen, Guangdong 518057 (CN) HAN, Xianghui Shenzhen, Guangdong 518057 (CN) (74) Representative: Ziebig Hengelhaupt Intellectual Property Attorneys Patentanwaltskanzlei PartGmbB  Leipziger Straße 49 10117 Berlin 10117 Berlin (DE)