Patent · US Active

Methods and apparatuses for facilitating P-CSCF restoration when a P-CSCF failure has occurred

US10148487B2 · kind B2 · utility

5Cited by

0References

6Claims

0Family size

Assignee

NEC CORPORATION · JP

Inventors

Andreas Kunz · Ladenburg, DE
Gottfried Punz · Dossenheim, DE
Genadi Velev · Darmstadt, DE
Toshiyuki Tamura · Tokyo, JP

Key dates

Filing date	Sep 24, 2014
Grant date	Dec 4, 2018
Priority date	—
Expiry date	Sep 24, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH04W76/32
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method of facilitating P-CSCF restoration when a P-CSCF failure has occurred is disclosed. The method comprises a Proxy Call Session Control Function, ‘P-CSCF’ receiving a Session Initiation Protocol, ‘SEP’, message when said P-CSCF has been selected as an alternative P-CSCF to a failed P-CSCF and providing, to an associated Policy and Charging Rules Function, ‘PCRF’, a message comprising an indication that P-CSCF restoration is required.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.