Content for TR 38.864 Word version: 18.1.0
5 Modeling and evaluation methodology
5.1 Energy consumption model for BS
5.2 Evaluation methodology
6 Techniques to improve network energy savings
6.1 Techniques in time domain
6.2 Techniques in frequency domain
6.3 Techniques in spatial domain
6.4 Techniques in power domain
6.5 Higher layer aspects for network energy savings
7 Conclusions
A Evaluation scenarios, traffic models and loads
B Simulation assumptions
$ Change history
5 Modeling and evaluation methodology p. 10
6 Techniques to improve network energy savings p. 13
6.1 Techniques in time domain p. 14
6.1.1 Technique A-1 Adapting transmission/reception of common channels/signals p. 14
6.1.1.1 Description of technique p. 14
6.1.1.2 Analysis of NW energy saving and performance impact p. 14
6.1.1.3 Legacy UE and RAN1 specification impacts p. 23
6.1.2 Technique A-2 Adaptation of UE specific signals and channels p. 24
6.1.2.1 Description of technique p. 24
6.1.2.2 Analysis of NW energy saving and performance impact p. 24
6.1.2.3 Legacy UE and RAN1 specification impacts p. 24
6.1.3 Technique A-3 UE wake up signal (WUS) for gNB p. 24
6.1.3.1 Description of technique p. 24
6.1.3.2 Analysis of NW energy saving and performance impact p. 25
6.1.3.3 Legacy UE and RAN1 specification impacts p. 31
6.1.4 Technique A-4 Adaptation of DTX/DRX p. 31
6.1.4.1 Description of technique p. 31
6.1.4.2 Analysis of NW energy saving and performance impact p. 31
6.1.4.3 Legacy UE and RAN1 specification impacts p. 34
6.1.4.4 Higher layer procedures p. 34
6.1.5 Technique A-5 adaptation of SSB/SIB1 including on-demand SSB/SIB1 p. 35
6.1.5.1 Description of technique p. 35
6.1.5.2 Analysis of NW energy saving and performance impact p. 35
6.1.5.3 Legacy UE and RAN1 specification impacts p. 36
6.1.6.1 Description of technique p. 36
6.1.6.2 Analysis of NW energy saving and performance impact p. 37
6.1.6.3 Legacy UE and RAN1 specification impacts p. 37
6.1.7.1 Description of technique p. 37
6.1.7.2 Analysis of NW energy saving and performance impact p. 37
6.1.7.3 Legacy UE and RAN1 specification impacts p. 37
6.2 Techniques in frequency domain p. 38
6.2.1 Technique B-1 Multi-carrier energy savings enhancements p. 38
6.2.1.1 Description of technique p. 38
6.2.1.2 Analysis of NW energy saving and performance impact p. 38
6.2.1.3 Legacy UE and RAN1 specification impacts p. 45
6.2.2 Technique B-2 Adaptation of bandwidth part of UE(s) within a carrier p. 45
6.2.2.1 Description of technique p. 45
6.2.2.2 Analysis of NW energy saving and performance impact p. 45
6.2.2.3 Legacy UE and RAN1 specification impacts p. 46
6.2.3 Technique B-3 Adaptation of bandwidth of UE(s) within a BWP p. 46
6.3 Techniques in spatial domain p. 47
6.3.1 Technique C-1 Adaptation of spatial elements p. 47
6.3.1.1 Description of technique p. 47
6.3.1.2 Analysis of NW energy saving and performance impact p. 47
6.3.1.3 Legacy UE and RAN1 specification impacts p. 55
6.3.2 Technique C-2 Adaptation of TRPs in mTRP operation p. 55
6.4 Techniques in power domain p. 56
6.4.1 Technique D-1 Adaptation of transmission power of signals and channels p. 56
6.4.1.1 Description of technique p. 56
6.4.1.2 Analysis of NW energy saving and performance impact p. 56
6.4.1.3 Legacy UE and RAN1 specification impacts p. 60
6.4.2 Technique D-2 Over the air digital pre-distortion p. 60
6.4.2.1 Description of technique p. 60
6.4.2.2 Analysis of NW energy saving and performance impact p. 60
6.4.2.3 Legacy UE and RAN1 specification impacts p. 60
6.4.3 Technique D-3 Tone reservation p. 61
6.4.3.1 Description of technique p. 61
6.4.3.2 Analysis of NW energy saving and performance impact p. 61
6.4.3.3 Legacy UE and RAN1 specification impacts p. 61
6.4.4 Technique D-4 PA power bias adaptation p. 61
6.4.4.1 Description of technique p. 61
6.4.4.2 Analysis of NW energy saving and performance impact p. 62
6.4.4.3 Legacy UE and RAN1 specification impacts p. 62
6.4.5 Technique D-5 UE post-distortion p. 62
6.5 Higher layer aspects for network energy savings p. 63
7 Conclusions p. 63
A Evaluation scenarios, traffic models and loads p. 67
B Simulation assumptions p. 67
$ Change history p. 72
