CPC H04L 43/20 (2022.05) [H04L 43/0823 (2013.01); H04L 43/12 (2013.01); H04L 43/50 (2013.01)] | 11 Claims |
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.
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