📡 DRX Enhancement Simulator TR 38.821 §7.2.1.2

Release 17 · Expert Lab
● DRX Timeline & Power Saving Viewer LEO · RTT 25.8 ms
🖱️ Configure DRX timers to optimize power saving
📊 RTT 25.8 ms ⏱️ HARQ RTT Timer 25.8 ms 📈 DRX Offset 0 ms 🔋 Power Saving 0%
1 ms 600 ms
0 ms 300 ms
🔋 Power Saving: 0%
Active Time per Cycle0 ms
Inactive Time per Cycle0 ms
Data Missed0
Status⏸️ Stopped
Configure timers and click Start Idle
Active Inactive SR DL Grant HARQ Retx Data Missed
🎯 Learning Outcome: This lab demonstrates DRX enhancements for NTN.
📌 WITHOUT OFFSET (GEO): ❌ UE wakes too early, stays awake too long
→ Power saving is poor (~30-40%)
📌 WITH OFFSET (GEO): ✅ Add offset (~RTT/2) to align wake-up with network response
→ Power saving improves significantly (>70%)
⚙️ Based on 3GPP TR 38.821 §7.2.1.2 · DRX timers must be adapted for NTN propagation delays