Patent · US Active

Methods and related devices for implementing disaster recovery

US11889330B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

ZTE CORPORATION · CN

Inventors

Ming Benjamin Zhu · Redwood City, US
Lichang Hou · Lo Wu, CN
Xuexin Ding · Shanghai, CN

Key dates

Filing date	Nov 18, 2019
Grant date	Jan 30, 2024
Priority date	—
Expiry date	Sep 26, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH04W76/18
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Provided are methods and related devices for implementing disaster recovery. According to a method, in a case where a main Session Management Function (SMF) fails, a backup SMF sends a first request to a User Plane Function (UPF), wherein the first request carries a node identifier (Node ID) of the main SMF, a Node ID of the backup SMF, and a Common Session endpoint Identifier List (CSIDLIST) corresponding to the backup SMF; and the first request is used for notifying the UPF that the main SMF fails and a session or sessions in the CSIDLIST corresponding to the backup SMF is/are to be taken over by the backup SMF, so that the UPF subsequently interacts with the backup SMF for the session or sessions in the CSIDLIST corresponding to the backup SMF.

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