CONTROL SYSTEM, NETWORK CONTROL METHOD AND PROGRAM

    公开(公告)号:US20240283727A1

    公开(公告)日:2024-08-22

    申请号:US18567017

    申请日:2021-06-15

    CPC classification number: H04L43/20 H04L43/0858 H04L47/2483

    Abstract: In a control system for controlling a network providing a service by using a virtual network function, the control system includes: a QoS estimation unit configured to estimate QoS at a current time of each flow in the network on a basis of observation information of the network; a QoS degradation detection unit configured to determine whether or not there QoS degradation flow is present on a basis of an estimation result by the QoS estimation unit; and a control determination unit configured to determine a control content and an execution timing thereof by solving an optimization problem with minimizing a total of degradation amounts in a time range from the current time to future for all flows as an objective function when the QoS degradation flow is determined to be present by the QoS degradation detection unit.

    METHOD AND APPARATUS FOR SURVIVAL TIME HANDLING FOR TIME SENSITIVE CONNECTIONS

    公开(公告)号:US20220353167A1

    公开(公告)日:2022-11-03

    申请号:US17731324

    申请日:2022-04-28

    Abstract: A method for time sensitive network (TSN) operation includes: in the case of data traffic stoppage in a communication channel of TSN due to at least one of down time of a user plane (UP) connection and a reset of the UP connection, performing the following: generating, by a user plane function (UPF), an audit report about the at least one of the down time and the reset; sending, by the UPF, the audit report to a first element in control plane (CP), without waiting for communication from the CP; and determining, by one of the first element or a second element in the CP, survival time of the communication channel. The audit report is sent along with a report type indicating the down time of the UP connection due to connection fluctuation or a switch-over of the UP connection from a primary UPF to a back-up UPF.

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