Content for TR 38.901 Word version: 18.0.0
2 References
3 Definitions, symbols and abbreviations
4 Introduction
6 Status/expectation of existing information on high frequencies
7 Channel model(s) for 0.5-100 GHz
8 Map-based hybrid channel model (Alternative channel model methodology)
A Further parameter definitions
$ Change History
2 References p. 7
3 Definitions, symbols and abbreviations p. 8
4 Introduction p. 10
5 Void
6 Status/expectation of existing information on high frequencies p. 11
6.1 Channel modelling works outside of 3GPP p. 11
6.2 Scenarios of interest p. 13
6.3 Channel measurement capabilities p. 14
6.4 Modelling objectives p. 15
7 Channel model(s) for 0.5-100 GHz p. 15
7.1 Coordinate system p. 15
7.1.1 Definition p. 15
7.1.2 Local and global coordinate systems p. 16
7.1.3 Transformation from a LCS to a GCS p. 16
7.1.4 Transformation from an LCS to a GCS for downtilt angle only p. 20
7.2 Scenarios p. 21
7.3 Antenna modelling p. 24
7.4 Pathloss, LOS probability and penetration modelling p. 27
7.4.1 Pathloss p. 27
7.4.2 LOS probability p. 30
7.4.3 O2I penetration loss p. 31
7.4.4 Autocorrelation of shadow fading p. 32
7.5 Fast fading model p. 33
7.6 Additional modelling components p. 48
7.6.1 Oxygen absorption p. 48
7.6.2 Large bandwidth and large antenna array p. 49
7.6.2.1 Modelling of the propagation delay p. 49
7.6.2.2 Modelling of intra-cluster angular and delay spreads p. 49
7.6.3 Spatial consistency p. 50
7.6.3.1 Spatial consistency procedure p. 51
7.6.3.2 Spatially-consistent UT/BS mobility modelling p. 51
7.6.3.3 LOS/NLOS, indoor states and O2I parameters p. 55
7.6.3.4 Applicability of spatial consistency |R16| p. 56
7.6.4 Blockage p. 57
7.6.4.1 Blockage model A p. 58
7.6.4.2 Blockage model B p. 60
7.6.5 Correlation modelling for multi-frequency simulations p. 62
7.6.6 Time-varying Doppler shift p. 65
7.6.7 UT rotation p. 65
7.6.8 Explicit ground reflection model |R16| p. 65
7.6.9 Absolute time of arrival |R16| p. 68
7.6.10 Dual mobility |R16| p. 69
7.6.11 Sources of EM interference |R16| p. 69
7.6.12 Embedded devices |R16| p. 69
7.7 Channel models for link-level evaluations p. 70
7.7.1 Clustered Delay Line (CDL) models p. 70
7.7.2 Tapped Delay Line (TDL) models p. 73
7.7.3 Scaling of delays p. 76
7.7.4 Spatial filter for generating TDL channel model p. 77
7.7.5 Extension for MIMO simulations p. 78
7.7.5.1 CDL extension: Scaling of angles p. 78
7.7.5.2 TDL extension: Applying a correlation matrix p. 79
7.7.6 K-factor for LOS channel models p. 80
7.8 Channel model calibration p. 80
8 Map-based hybrid channel model (Alternative channel model methodology) p. 85
8.1 Coordinate system p. 86
8.2 Scenarios p. 86
8.3 Antenna modelling p. 86
8.4 Channel generation p. 86
A Further parameter definitions p. 97
$ Change History p. 98
