Invention Grant
- Patent Title: Methods and apparatuses for facilitating P-CSCF restoration when a P-CSCF failure has occurred
-
Application No.: US16169887Application Date: 2018-10-24
-
Publication No.: US10601638B2Publication Date: 2020-03-24
- Inventor: Andreas Kunz , Gottfried Punz , Genadi Velev , Toshiyuki Tamura
- Applicant: NEC Corporation
- Applicant Address: JP Tokyo
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP Tokyo
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- Priority: EP13185705 20130924
- Main IPC: H04L29/06
- IPC: H04L29/06 ; H04L29/14 ; H04W76/12 ; H04L12/24 ; H04W76/19 ; H04W76/32

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, ‘SIP’, 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.
Public/Granted literature
- US20190123953A1 METHODS AND APPARATUSES FOR FACILITATING P-CSCF RESTORATION WHEN A P-CSCF FAILURE HAS OCCURRED Public/Granted day:2019-04-25
Information query