US 11,943,108 B2
Service level agreement maintenance in telecom networks
Ramamurthy Badrinath, Bangalore Karnataka (IN); Anusha Pradeep Mujumdar, Bangalore (IN); Vijaya Yajnanarayana, Bangalore (IN); Ankit Jauhari, Bangalore (IN); and Senthamiz Selvi Arumugam, Solna (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 17/800,548
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Feb. 20, 2020, PCT No. PCT/IN2020/050156
§ 371(c)(1), (2) Date Aug. 18, 2022,
PCT Pub. No. WO2021/165976, PCT Pub. Date Aug. 26, 2021.
Prior Publication US 2023/0083063 A1, Mar. 16, 2023
Int. Cl. H04L 41/0823 (2022.01); H04L 41/0894 (2022.01); H04L 41/40 (2022.01); H04L 41/5009 (2022.01); H04L 41/5054 (2022.01)
CPC H04L 41/0823 (2013.01) [H04L 41/0894 (2022.05); H04L 41/40 (2022.05); H04L 41/5009 (2013.01); H04L 41/5054 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method for operating a telecom network having a Service Level Agreement (SLA), the method comprising:
obtaining annotated alarm data comprising an indication of a threshold crossing of at least one state variable of the telecom network defined by the SLA, the annotated alarm data further comprising an indication of a desired value of the at least one state variable of the telecom network;
determining a desired state of the telecom network based on the desired value of at least one state variable;
selecting a set of policy actions from a policy action bank, wherein the policy action bank comprises a plurality of policy actions, each policy action being associated with at least one estimated action effect, and wherein the selection of the set of policy actions is based on the estimated action effects of the plurality of policy actions and on the determined desired state of the telecom network such that the desired state is reachable upon execution of the selected set of policy actions; and
sending the selected set of policy actions to an action orchestrating module for execution of the selected set of policy actions;
wherein each of the plurality of policy actions is further associated with at least one pre-condition of the telecom network, each pre-condition defining a predefined parameter value or a predefined parameter range of a state variable of the telecom network; and
wherein the method further comprises:
obtaining a current state of the telecom network, the current state being defined by current values of a plurality of state variables of the telecom network, and wherein the selection of the set of policy actions is further based on the obtained current state of the telecom network and the pre-conditions; and
wherein the selection of the set of policy actions comprises:
computing a cost function based on the desired state of the telecom network, the estimated action effects of the plurality of policy actions, the current state of the telecom network, and the pre-conditions of the plurality of policy actions;
wherein the policy actions whose associated predefined pre-condition(s) is/are not fulfilled based on the current state of the telecom network are associated with a higher cost than the policy actions whose associated predefined pre-condition(s) is/are fulfilled based on the current state of the telecom network.