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:
Sep. 15, 2026
Filed:
Apr. 21, 2022
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Nianshan Shi, Järfälla, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
Embodiments include methods for a first network node (e.g., eNB) of a wireless network (e.g., EPS). Such methods include sending (), to a second network node of the wireless network, a request to retrieve context information associated with a user equipment (UE) that has been or is being handed over from the second network node to the first network node. Such methods include receiving () the context information associated with the UE from the second network node. Specifically, the context information includes an indication of whether the UE has an active IP Multimedia System (IMS) voice call that was subject to a first inter-system handover from a 5G System (5GS) to the wireless network. Other embodiments include complementary methods for the second network node, as well as network nodes configured to perform such methods.