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. 27, 2023
Filed:
Nov. 09, 2018
Applicant:
Nokia Technologies Oy, Espoo, FI;
Inventor:
Ashok Kumar Nayak, Bangalore, IN;
Assignee:
NOKIA TECHNOLOGIES OY, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 60/04 (2009.01); H04M 3/533 (2006.01);
U.S. Cl.
CPC ...
H04W 60/04 (2013.01); H04M 3/533 (2013.01);
Abstract
An apparatus () comprising means for: receiving, from a second user equipment (), a request for communication with a first user equipment (), after a period of time during which the apparatus was not operating; receiving information from a home subscriber server () comprising an expiry value for registration of the first user equipment with the apparatus; and determining that the registration has expired.