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Intent-based networking (IBN) provides a promising approach for managingnetworks and orchestrating services in beyond 5G (B5G) deployments using modernservice-based architectures. Public safety (PS) services form the basis ofkeeping society functional, owing to the responsiveness and availabilitythroughout the network. The provisioning of these services requires efficientand agile network management techniques with low-overhead and embeddedintelligence. IBN incorporates the service subscribers in a model-drivenapproach to provision different user-centric services. However, it requiresdomain-specific and contextual processing of intents for abstracted managementof network functions. This work proposes an intent definition for PS andmission critical (MC) services in beyond B5G networks, as well as a processingand orchestration architecture on top of MC push-to-talk (PTT) use case. Thesimulation results show that MC PTT services adhere to the key performanceindicators of access time and mouth-to-ear latency bounded by approximately 250and 150 milliseconds, respectively, with an additional overhead experiencedduring the intent processing in the range of 20- 40 milliseconds. Thisvalidates the premise of IBN in providing flexible and scalable management andservice orchestration solution for PS next generation networks.

Mission-Critical Public Safety Networking: An Intent-Driven Service Orchestration Perspective