XR QoE Metrics

Technical Explanation

Network-layer metrics (like packet loss) fail to capture subjective human immersion. 3GPP Rel-18 standardizes client-side XR QoE (Quality of Experience) telemetry reporting: headsets periodically report decoded frame rates, motion-to-photon delay, visual artifact counts, and buffer starvation events to the NWDAF, enabling automated network self-tuning.

Key Functions

• Collects standardized user-perceived Quality of Experience telemetry from AR/VR headsets
• Reports motion-to-photon latency, frame freeze duration, and decoder starvation events
• Feeds real-time QoE metrics into the NWDAF (Network Data Analytics Function)
• Automates closed-loop slice resource re-allocation to protect degraded user experiences