Content for  TR 38.835  Word version:  18.0.1

This clause captures evaluation results for enhanced CDRX based on dynamic alignment between CDRX and XR traffic. The following evaluations were provided by companies:

• Nokia evaluated dynamic adaptation of DRX parameters based on auxiliary L1/L2 signalling in addition to semi-static solution to align XR traffic and CDRX operation.
• ZTE and Qualcomm evaluated dynamic CDRX enhancement to adjust the CDRX start offset.

Based on the evaluation results in Table B.2.2-1, the following observations can be made:

• For FR1, DL + UL joint evaluation, InH, high load, VR 30Mbps traffic at 60fps and 10ms PDB, it is observed from ZTE that:
  • dynamic alignment provides:
    • power saving gain of 23% for all UEs
    • capacity gain of -3.31%
  • semi-static alignment as the performance reference provides:
    • mean power saving gain of 23.90% in the range of 23.85% to 24% for all UEs
    • mean capacity gain of -3.26% in the range of -3.29% to -3.25%.

Based on the evaluation results in Table B.2.2-2, the following observations can be made:

• For FR1, DL only evaluation, InH, high load, CG 30Mbps traffic at 60fps and 15ms PDB, it is observed from Nokia that:
  • adaptive DRX provides:
    • mean power saving gain of 16.33% in the range of 15.00% to 19.00% for all UEs
    • mean capacity gain of -26.3% in the range of -31.1% to -16.7%
  • semi-static CDRX periodicity alignment provides:
    • power saving of 16.00%
    • capacity gain of -55.6%
  • R15/16 CDRX provides:
    • mean power saving gain of 13.30% for all UEs
    • capacity gain of -33.3%

Based on the evaluation results in Table B.2.2-3, the following observations can be made:

• For FR1, DL only evaluation, InH, high load, VR 30Mbps traffic at 60fps and 10ms PDB, it is observed from Nokia that:
  • adaptive DRX provides:
    • mean power saving gain of 16.33% in the range of 15.00% to 19.00% for all UEs
    • mean capacity gain of -57.90% in the range of -73.7% to -26.3%
  • semi-static CDRX periodicity alignment and R15/16 CDRX provides:
    • capacity gain of -100%
• For FR1, DL only evaluation, InH, high load, VR 30Mbps traffic at 60fps and 10ms PDB, it is observed from ZTE that:
  • dynamic alignment provides power:
    • saving gain of 33% for all UEs
    • capacity gain of -3.31%.
  • semi-static alignment as the performance reference provides:
    • mean power saving gain of 33.90% in the range of 33.80% to 34% for all UEs
    • mean capacity gain of -3.26% in the range of-3.22% to -3.31%.

Based on the evaluation results in Table B.2.2-4, the following observations can be made:

• For FR2, DL only evaluation, InH, high load, VR 30Mbps traffic at 60fps and 10ms PDB, it is observed from Qualcomm that:
  • adaptative On Start (on top of semi-static alignment and PDCCH skipping) provides:
    • mean power saving gain of 62.48% in the range of 42.70% and 74.60% for all UEs
    • mean capacity gain of -26.30% in the range of -70.0% to -2.2%
  • semi-static alignment and PDCCH skipping as the performance reference provides:
    • mean power saving gain of 32.32% in the range of 12.70% to 45.50% for all UEs
    • mean capacity gain of -26.30% in the range of -70.0% to -2.2%

Based on the evaluation results in Table B.2.2-5, the following observations can be made:

• For FR1, DL only evaluation, DU, high load, CG 30Mbps traffic at 60fps and 15ms PDB, it is observed from Nokia that:
  • adaptive DRX provides:
    • mean power saving gain of 13.33% in the range of 9.00% to 22.00% for all UEs
    • mean capacity gain of -47.33xx% in the range of -20% to X-94%%
  • R15/16 CDRX provides:
    • mean power saving gain of 13.30% for all UEs
    • capacity gain of -48%

Based on the evaluation results in Table B.2.2-6, the following observations can be made:

• For FR1, DL only evaluation, DU, high load, AR/VR 30Mbps traffic at 60fps and 10ms PDB, it is observed from Nokia that:
  • adaptive DRX provides:
    • mean power saving gain of 13.5% in the range of 9.3% to 18.2% for all UEs
    • mean capacity gain of -56% in the range of -26% to -73%
  • R15/16 CDRX provides:
    • mean power saving gain of 0% for all UEs
    • capacity gain of -100%