(19)
(11) EP 4 289 089 A1

(12)

(43) Date of publication:
13.12.2023 Bulletin 2023/50

(21) Application number: 21720779.4

(22) Date of filing: 27.04.2021
(51) International Patent Classification (IPC): 
H04L(2006.01)
(52) Cooperative Patent Classification (CPC):
H04L 63/1408; H04L 63/1416; H04L 63/1458; H04W 12/121; H04L 2463/121
(86) International application number:
PCT/EP2021/060946
(87) International publication number:
WO 2022/167105 (11.08.2022 Gazette 2022/32)
(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 MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 05.02.2021 EP 21382097

(71) Applicant: Telefonaktiebolaget LM Ericsson (publ)
164 83 Stockholm (SE)

(72) Inventor:
  • MUÑOZ DE LA TORRE ALONSO, Miguel Angel
    28002 Madrid (ES)

(74) Representative: Valea AB 
Box 7086
103 87 Stockholm
103 87 Stockholm (SE)

   


(54) FIRST NODE, SECOND NODE, COMMUNICATIONS SYSTEM AND METHODS PERFORMED, THEREBY FOR HANDLING SECURITY IN A COMMUNICATIONS SYSTEM