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Content for  TR 38.835  Word version:  18.0.1

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B.2.10 SPS+DG with UE power saving scheme 
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B.2.10  SPS+DG with UE power saving scheme  p. 95

This clause captures evaluation results for the UE power saving scheme of SPS enhancement with dynamic grant (DG):
  • CATT evaluated the periodic SPS occasion which provides wake-up timing for XR UE during DRX OFF and subsequent dynamic grant window for the transmission of XR packets. When XR packet arrives after the SPS occasion, gNB could indicate UE to perform PDCCH skipping until XR packet arrival and to transform to sleep state after XR packet transmission finishes.
sourcedata row indexTdoc sourcePower saving schemeCDRX cycle (ms)ODT (ms)IAT (ms)Load H/L#UE /cellfloor (Capa­city)% of satis­fied UECapa­city gain (%)Mean PSG of all UEs (%)Mean PSG of satis­fied UEs (%)Addi­tional Assump­tions
CATT1R1-2211174Baseline: DG scheduling and UE always-on---H121295.8%0.0%0.0%0.0%
CATT2R1-2211174DG scheduling with C-DRX16124H121290.0%-6.1%8.0%8.0%
CATT21R1-2211174SPS enhancement---H121290.0%-6.1%12.5%12.6%
CATT21R1-2211174SPS enhancement---H121290.0%-0.0%9.8%9.9%Note1
CATT22R1-2211174Multiple SPS configurations---H12120.0%-100.0%47.4%-
CATT22R1-2211174Multiple SPS configurations---H12120.0%-100.0%46.1%-Note1
CATT23R1-2211174SPS enhancement with go-to-sleep---H121288.33%-7.8%39.8%39.9%
CATT23R1-2211174SPS enhancement with go-to-sleep---H121288.33%-1.9%38.0%38.1%Note1
NOTE 1:
PSG is calculated w.r.t. DG scheduling with C-DRX
Based on the evaluation results in Table B.2.10-1, the following observations can be made:
  • For FR1, DL only evaluation, InH, high load, VR 30Mbps traffic at 60fps with 10ms PDB, it is observed from CATT that:
    • SPS +DG with power saving schemes provides:
      • mean power saving gain of 25.03% in the range of 9.80% to 39.8%
      • mean capacity gain of -3.9% in the range of -0.0% to -7.8%
    • DG scheduling with C-DRX(16, 12, 4) as the performance reference provides:
      • mean power saving gain of 8.0%
      • mean capacity gain of -6.1%
    • multiple SPS configurations as the performance reference provides:
      • mean power saving gain of 46.75% in the range of 46.10% to 47.40%
      • mean capacity gain of -100%
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