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:
Jun. 23, 2026
Filed:
Jul. 27, 2021
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
George Foti, Dollard des Ormeaux, CA;
Telefonaktiebolaget LM Ericsson (Publ), Stockholm, SE;
Abstract
A method for controlling a service session handover between network slices. The service session may be a multimedia session, for example an IMS session. The method comprises establishing () a first default data session on a first network slice of a communications network based on a first network slice identifier of the first network slice such that a first network address of the first communications device, a first application node of an application layer system, and a first access gateway of the application layer system is associated with the first default data session. The method further comprises establishing () an associated first dedicated service session with a second communications device over a first dedicated data session based on the first default data session on the first network slice. The method further comprises establishing () a second default data session on a second network slice of the communications network based on a second network slice identifier of the second network slice such that a second network address of the first communications device, a second application node of the application layer system, and a second access gateway of the application layer system is associated with the second default data session. The method further comprises sending () a session controlling message to the first application node, the session controlling message comprising: the second network address of the first communications device, a network address of the second application node, and a session identifier of the first dedicated service session, to enable reserving network resources of the second access gateway for a second dedicated service session between the first communications device and the second communications device established over a second dedicated data session based on the second default data session on the second network slice, such that handover of the first dedicated service session between the first network slice and the second network slice is enabled.