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:
Apr. 09, 2024
Filed:
Apr. 25, 2019
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Tommy Arngren, Södra Sunderbyn, SE;
Bernard Smeets, Dalby, SE;
Tomas Thyni, Järfälla, SE;
Daniel Bergström, Luleå, SE;
Telefonaktiebolaget LM Ericsson (Publ), Stockholm, SE;
Abstract
The application discloses methods and corresponding systems and network devices and/or nodes for enabling user equipment belonging to a home network to access data communication services in a visited network of a wireless communication system. By way of example, there is provided a method that comprises the step of obtaining at least one cryptographic token originating from a network node of the home network of the user equipment and cryptographically signed by a private key associated with the home network, wherein the at least one cryptographic token represents means for accessing data communication services via user data transport functions of the visited network. The method also comprises cryptographically signing the obtained and signed token by a private key associated with the user equipment to generate a double-signed token, and sending the double-signed token to a network node of the visited network, which validates the double-signed token for enabling the user equipment to access data communication services via the user data transport functions of the visited network.