The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 01, 2022
Filed:
May. 28, 2020
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Dinand Roeland, Sollentuna, SE;
Vesa Lehtovirta, Espoo, FI;
Karl Norrman, Stockholm, SE;
Stefan Rommer, Västra Frölunda, SE;
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm, SE;
Abstract
A method of protecting WLAN Control Protocol (WLCP) message exchange between a Trusted WLAN Access Gateway (TWAG)() of a Trusted WLAN Access Network (TWAN)() and a User Equipment (UE)() are provided. The method comprises deriving, by an Authentication, Authorization, and Accounting, (AAA) Server() of an Evolved Packet Core (EPC) network which is interfaced with the TWAN, and by the UE, a Master Session Key (MSK) and an Extended MSK (EMSK), sending, from the AAA Server to a Trusted WLAN AAA Proxy (TWAP)() of the TWAN and an Access Point (AP)() of the TWAN, the MSK or a key derived from at least the MSK, and deriving, by the TWAN or by the AAA Server, and by the UE, from the MSK, the EMSK, or the key derived from at least the MSK or the EMSK, a key for protecting the WLCP message exchange.—Corresponding devices, computer programs, and computer program products are further provided.