Content for TR 38.808 Word version: 17.0.0
4 Study of required changes to NR
4.1 RAN1 Aspects
4.2 RAN4 aspects
5 Study of channel access mechanism for 60 GHz
5.1 Identification of regulatory aspects for consideration
5.2 Channel access and interference mitigation techniques
6 Summary of evaluation study
6.1 Summary of link level evaluations
6.2 Summary of system level evaluations
6.3 Summary of delay spread evaluations
7 Conclusions
4 Study of required changes to NR p. 14
4.1 RAN1 Aspects p. 14
4.1.1 General description of study in RAN1 p. 14
4.1.2 Candidate numerology and bandwidth p. 14
4.1.3 Investigation of physical layer impact from candidate numerology and bandwidths p. 17
4.1.3.1 General physical layer impacts p. 17
4.1.3.2 Physical layer impacts to synchronization and random access p. 18
4.1.3.3 Physical layer impacts to PDSCH and PUSCH p. 19
4.1.3.4 Physical layer impacts to PDCCH p. 20
4.1.3.5 Physical layer impacts to PUCCH p. 20
4.1.3.6 Physical layer impacts to reference signals p. 20
4.1.3.7 Physical layer impacts to beam management and CSI p. 21
4.2 RAN4 aspects p. 22
4.2.1 General description of study in RAN4 p. 22
4.2.2 Timing considerations p. 22
4.2.2.1 General aspects p. 22
4.2.2.2 Transient period p. 22
4.2.2.3 Cell synchronization p. 22
4.2.2.4 BS Analog beam switching p. 23
4.2.2.5 BS Time alignment error (TAE) p. 23
4.2.2.6 UE timing error p. 23
4.2.3 Phase noise characteristics p. 25
4.2.3.1 Phase noise model set 1 p. 25
4.2.3.2 Phase noise model set 2 p. 28
4.2.3.3 Additional information p. 29
4.2.4 Power amplifiers trends p. 31
4.2.5 BS aspects p. 33
4.2.5.1 BS antenna arrays p. 33
4.2.5.2 Noise figure p. 34
4.2.5.3 Output power and ACLR dependencies p. 35
4.2.5.4 BS architecture p. 36
4.2.6 UE aspects p. 36
4.2.7 Numerologies and Channel Bandwidths p. 38
5 Study of channel access mechanism for 60 GHz p. 38
5.1 Identification of regulatory aspects for consideration p. 38
5.2 Channel access and interference mitigation techniques p. 38
6 Summary of evaluation study p. 41
6.1 Summary of link level evaluations p. 41
6.1.1 Observations on PDSCH/PUSCH p. 41
6.1.2 Observations on PSS/SSS and PBCH p. 46
6.1.3 Observations on PRACH p. 47
6.2 Summary of system level evaluations p. 47
6.2.1 Description of channel access schemes modelled in evaluations p. 47
6.2.2 Detailed observations for indoor scenario A p. 49
6.2.3 Detailed observations for indoor scenario B p. 52
6.2.4 Detailed observations for indoor scenario C p. 52
6.2.5 Detailed observations for outdoor scenario B p. 53
6.2.6 Summary of observations p. 53
6.3 Summary of delay spread evaluations p. 54
7 Conclusions p. 54
