Dynamic Cross-Domain Network Slicing for Teleoperation: A Real-World Proof-of-Concept
Teleoperation is increasingly used to complement Level-4 autonomous driving, but it depends on strict network requirements i.e., latency below 5 ms, uplink throughput exceeding 25 Mbps, and reliability of 99.999%. To meet such requirements Network Slicing has emerged as a key paradigm to allocate and isolate network resources. However, in current 5G Standalone (5G SA)networks, Network Slicing faces fragmented orchestration. 3GPP mechanisms govern the 5G Core (5GC), O-RAN manages Radio Access Network (RAN) resources, while Transport Network (TN) operates separately, limiting end-to-end Quality of Service (QoS) guarantees.In this work, we propose a Cross-Domain Controller (CDC) that establishes synergy between network domains i.e., 5GC, TN, and RAN, through policy-driven coordination. The CDC implements a closed-loop, threshold-based mechanism that monitors slice Key Performance Indicators (KPIs) and triggers runtime network resource reconfigurations when the Teleoperation slice requires additional capacity to meet its QoS targets. Experimental validation on a real-world 5G SA testbed demonstrates that the CDC maintains strict slice isolation while dynamically expanding allocated network resources.