srsRAN split 8 - PRB Allocation xApp for robot UE

Modern industrial and healthcare environments are increasingly adopting mission-critical robotic systems such as robotic arms, AGVs, automated inspection units and surgical robots that exchange control commands and sensor data every few milliseconds. These critical systems require predictable throughput, ultra-low latency, and highly stable wireless links. Even brief jitter or delay can disrupt the control loop and lead to unsafe or unstable behaviour.

While network slicing provides isolation and QoS differentiation, it does not control how PRBs are assigned to individual UEs inside the gNB. The final decision on resource allocation still depends on the RAN scheduler’s generic algorithms, which cannot guarantee deterministic, per-UE behaviour. As a result, even devices assigned to a high-priority slice may still experience jitter or throughput variation when competing for resources with other devices.

This reveals a gap for robotic systems that require strict, predictable performance. These time-sensitive systems need fine-grained, real-time control at the RAN level to maintain stable operation. To address this limitation, we built a custom xApp on the Near-RT RIC that allocates PRBs to the mission-critical UEs. This enables fine-grained, per-UE, real-time prioritisation of radio resources.

Видео srsRAN split 8 - PRB Allocation xApp for robot UE канала SYSTRON Lab