ITU-R P.1407-8 (09/2021)

Policy on Intellectual Property Right (IPR)
Annex 1
1 Introduction
2 Parameters of delay profiles
2.1 Definitions of power delay profiles
2.2 Definitions of statistical parameters
2.2.1 Total power
2.2.2 Average delay time
2.2.3 r.m.s. delay spread
2.2.4 Delay window
2.2.5 Delay interval
2.2.6 Number of multipath components
2.2.7 Recommended parameters
3 Parameters of direction of arrival
3.1 Definition of azimuth or elevation angle of arrival power profiles
3.2 Definitions of statistical parameters
3.2.1 Total power
3.2.2 Average azimuth or elevation arrival angle
3.2.3 r.m.s. azimuth or elevation angular spread
3.2.4 Azimuth or elevation angular window
3.2.5 Azimuth or elevation angle interval (azimuth or elevation angular spacing)
3.2.6 Spatial correlation distance
3.2.7 Recommended parameters
4 Parameters of directional power-delay profile
5 Parameters of the received signal variations
5.1 Definition of the received signal variations as a function of time and frequency
5.2 Definitions of statistical parameters
5.2.1 Coherent bandwidth or frequency correlation
5.2.2 Coherent time or time correlation
5.2.3 Level crossing rate and average fade duration
5.2.4 Level crossing frequency and average fade bandwidth
5.2.5 Recommended parameters
6 Specific case of narrow band modelling
7 Test for stationary distance
Annex 2
1 Introduction
2 Computing the spatial correlation coefficients
3 Effect of the correlation coefficients on MIMO capacity
Annex 3
1 Introduction
2 Generation of wideband channel
3 Generation of narrowband channel
Annex 4

Recommendation ITU-R P.1407 describes the nature of multipath propagation and defines the appropriate parameters for the statistical description of multipath effects, and provides examples of correlation effects among multiple propagation paths and their computation.