Content for TR 38.835 Word version: 18.0.1

1… 4… 5… 6 A B… B.1.2 B.1.3 B.1.4 B.1.5 B.1.6 B.1.7 B.1.8 B.1.9 B.1.10 B.2… B.2.2 B.2.3 B.2.4 B.2.5 B.2.6 B.2.7 B.2.8 B.2.9 B.2.10 B.2.11 B.2.12 B.2.13 B.2.14 B.2.15 B.2.16 B.2.17 B.2.18 C…

This clause captures evaluation results for XR-specific playoutDelayForMediaStartup for XR UE power saving enhancement:

CATT evaluated XR-specific playoutDelayForMediaStartup for XR UE power saving enhancement. When the size of the playout buffer is fed back to the gNB scheduler, gNB could have additional PDB for resource allocation of XR packet.

source	data row index	Tdoc source	Power saving scheme	CDRX cycle (ms)	ODT (ms)	IAT (ms)	Load H/L	#UE /cell	floor (Capacity)	% of satisfied UE	Capacity performance gain	Mean PSG of all UEs (%)	Mean PSG of satisfied UEs (%)	Additional Assumptions
CATT	1	R1-2211174	Baselin: DG scheduling with UE always on	-	-	-	H	12	12	95.83%	0.0%	0.0%	-
CATT	24	R1-2211174	XR-specific playoutDelayForMediaStartup scheme with go-to-sleep	16	8	4	H	20	20	94.17%	67%	26.43%	-	Note1,2
CATT	25	R1-2211174	XR-specific playoutDelayForMediaStartup scheme with PDCCH skipping and go-to-sleep	16	8	4	H	20	20	93.3%	67%	28.51%	-	Note1,2
NOTE 1: The power saving gain is based on the same capacity as that of the baseline scheme (DG scheduling with UE always on). NOTE 2: 3 frames playout buffer for all UEs

Based on the evaluation results in Table B.2.17-1, the following observations can be made:

For FR1, DL only, InH, VR 30Mbps traffic at 60fps with 10ms PDB, it is observed from CATT that with the awareness of UE XR-specific playoutDelayForMediaStartup, UE can achieve:
- mean power saving gain of 26.43% to 28.51%
- mean capacity gain of 67%