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:
Mar. 31, 2026
Filed:
Mar. 09, 2023
Mediatek Inc., Hsin-Chu, TW;
Yuan-Chieh Lin, Hsin-Chu, TW;
Chia-Lin Lai, Hsin-Chu, TW;
MediaTek Inc., Hsinchu City, TW;
Abstract
A method of handling a service request from a UE camped on a CAG cell with emergency PDU session is proposed, where the UE is not authorized to access the current CAG cell. When the UE-maintained CAG related configuration is not synchronized with the NW-maintained CAG related configuration, the UE may try to access a CAG cell and sends a service request, but the NW may determine that the CAG cell is not suitable. Because the UE has an existing emergency PDU session, the network will accept the service request, and locally releases all non-emergency PDU sessions associated with 3GPP access. Specifically, the network will locally release SA non-emergency PDU sessions associated with 3GPP access, or MA PDU sessions with only 3GPP access user-plane resources, or 3GPP user-plane resources of MA PDU sessions with both 3GPP and non-3GPP access user-plane resources.