(19)
(11) EP 4 740 393 A1

(12)

(43) Date of publication:
13.05.2026 Bulletin 2026/20

(21) Application number: 23957129.2

(22) Date of filing: 31.10.2023
(51) International Patent Classification (IPC): 
H04L 41/28(2022.01)
(52) Cooperative Patent Classification (CPC):
H04L 41/28; H04L 41/0213
(86) International application number:
PCT/CN2023/128541
(87) International publication number:
WO 2025/091252 (08.05.2025 Gazette 2025/19)
(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: Telefonaktiebolaget LM Ericsson (publ)
164 83 Stockholm (SE)

(72) Inventors:
  • AI, Zhaoyu
    Beijing 100102 (CN)
  • QIN, Xing
    Beijing 100102 (CN)
  • ZHANG, Pengfei
    Beijing 100102 (CN)
  • LIU, Daiying
    Beijing 100102 (CN)

(74) Representative: Ericsson 
Patent Development Torshamnsgatan 21-23
164 80 Stockholm
164 80 Stockholm (SE)

   


(54) METHODS, DEVICES AND STORAGE MEDIUM FOR DATA ACCESS CONTROL