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(11)

EP 4 771 798 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 23953743.4 (22) Date of filing: 28.09.2023

(51) International Patent Classification (IPC):  H04L 5/00(2006.01) (52) Cooperative Patent Classification (CPC): H04L 5/0051 (86) International application number: PCT/CN2023/122831 (87) International publication number: WO 2025/065597 (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: ZTE Corporation Shenzhen, Guangdong 518057 (CN)	(72) Inventors: MEI, Meng Shenzhen, Guangdong 518057 (CN) GAO, Bo Shenzhen, Guangdong 518057 (CN) ZHANG, Yang Shenzhen, Guangdong 518057 (CN) YAO, Ke Shenzhen, Guangdong 518057 (CN) GUO, Xiaolong Shenzhen, Guangdong 518057 (CN) (74) Representative: Carangelo, Pierluigi et al Jacobacci & Partners S.p.A. Via Tomacelli 146 00186 Roma 00186 Roma (IT)