Method and nodes for handling a failure in a communications network
US9867225B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2014 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | Jul 7, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/14
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The embodiments herein relate to a method in a second CN node (205,407) for handling a failure in a communications network (200). The failure has caused communication between the second CN node (205, 407) and an old first CN node (203a) to become unavailable. The communication is associated with a session. When the failure has been detected, the second CN node transmits a session start request message to a new first CN node (203b, 405b, 410b). The session start request is a request to restore the session. The session start request message comprises a restoration flag indicating restoration of the session for a same service established before the failure and allowing a RAN node (201, 403) in the communications network (200) to accept the session start request message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.