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. 14, 2017
Filed:
May. 21, 2012
Applicants:
Magnus Hallenstål, Täby, SE;
Staffan Blau, Spånga, SE;
Inventors:
Magnus Hallenstål, Täby, SE;
Staffan Blau, Spånga, SE;
Assignee:
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 76/02 (2009.01); H04W 24/02 (2009.01); H04L 29/06 (2006.01); H04L 29/12 (2006.01); H04W 76/06 (2009.01); H04L 29/08 (2006.01); H04W 24/04 (2009.01);
U.S. Cl.
CPC ...
H04W 76/028 (2013.01); H04L 65/1016 (2013.01); H04L 65/1046 (2013.01); H04W 24/04 (2013.01); H04L 61/1588 (2013.01); H04L 65/1073 (2013.01); H04L 67/147 (2013.01); H04W 76/027 (2013.01); H04W 76/06 (2013.01);
Abstract
A method for restoring connectivity between a node in an IP Multimedia Subsystem, IMS, network, and a User Equipment, UE. The UE is associated with a Proxy Call Session Control Function node, P-CSCF, of said IMS network, and with at least one control node of a packet access network, through which the UE connects to the IMS network. The method allows for restoring the connectivity of the UE to an IMS network node after said IMS node has failed to establish a communication to said UE via said P-CSCF node.