US 11,997,000 B2
Method and apparatus for survival time handling for time sensitive connections
Abhishek Mishra, Bangalore (IN); Vipin Padlikar, Bangalore (IN); Rohit Gupta, Bangalore (IN); and Tamanna Jindal, McKinney, TX (US)
Assigned to Mavenir Systems, Inc., Richardson, TX (US)
Filed by Mavenir Systems, Inc., Richardson, TX (US)
Filed on Apr. 28, 2022, as Appl. No. 17/731,324.
Claims priority of application No. 202121020229 (IN), filed on May 3, 2021.
Prior Publication US 2022/0353167 A1, Nov. 3, 2022
Int. Cl. H04L 43/20 (2022.01); H04L 43/0823 (2022.01); H04L 43/12 (2022.01); H04L 43/50 (2022.01)
CPC H04L 43/20 (2022.05) [H04L 43/0823 (2013.01); H04L 43/12 (2013.01); H04L 43/50 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for time sensitive network (TSN) operation during data traffic stoppage occurring in a communication channel of TSN due to a down time of a user plane (UP) connection due to a switch-over of the UP connection from a primary user plane function (UPF) to a back-up UPF, comprising:
generating, by a user plane function (UPF), an audit report about the down time of the UP connection due to the switch-over of the UP connection, wherein the audit report is sent along with report type indicating the down time of the UP connection due to the switch-over of the UP connection from the primary user plane function (UPF) to the back-up UPF;
sending, by the back-up UPF, the audit report to a first element in control plane (CP), without waiting for communication from the CP, wherein the first element in the CP is a session management function (SMF); and
determining, by one of the first element or a second element in the CP, survival time of the communication channel.