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.

Date of Patent:
Feb. 25, 2025

Filed:

Feb. 23, 2022
Applicant:

Mediatek Singapore Pte. Ltd., Singapore, SG;

Inventors:

Marko Niemi, Oulu, FI;

Matti Moisanen, Oulu, FI;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/90 (2018.01); H04W 60/06 (2009.01);
U.S. Cl.
CPC ...
H04W 4/90 (2018.02); H04W 60/06 (2013.01);
Abstract

A method executed by a User Equipment (UE) for emergency call handling during a de-registration or detach procedure is provided. The UE initiates a Mobility Management (MM) de-registration procedure or an MM detach procedure with a mobile communication network. The UE initiates an emergency service before the MM de-registration procedure or the MM detach procedure has been completed. In response to the initiation of the emergency call, the UE aborts the MM de-registration procedure or the MM detach procedure and performs local de-registration or local detach. After the local de-registration or the local detach, the UE initiates a registration procedure or an attach procedure.


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