Recommendation ITU-R P.1238-11(09/2021) Propagation data and prediction methods for the planning of indoor radiocommunication systems and radio local area networks in the frequency range 300 MHz to 450 GHz
Foreword
Scope
Keywords
Annex 1
1 Introduction
2 Propagation impairments and measures of quality in indoor radio systems
3 Basic transmission loss models
     3.1 Site-general models
     3.2 Site-specific models
4 Delay spread models
     4.1 Multipath
     4.2 Impulse response
     4.3 r.m.s. delay spread
     4.4 Frequency selectivity statistics
     4.5 Site-specific models
5 Effect of polarization
     5.1 Line-of-sight case
          5.1.1 Delay spread
          5.1.2 Cross-polarization discrimination ratio (XPR)
     5.2 Obstructed path case
     5.3 Orientation of mobile terminal
6 Effect of antenna radiation pattern
     6.1 Received power loss due to the beamwidth of directional antenna
     6.2 Delay spread and angular spread characteristics
7 Effect of transmitter and receiver siting
8 Effect of building materials, furnishings and furniture
9 Effect of movement of objects in the room
10 Angular spread models
     10.1 Cluster model
     10.2 Angular distribution of arrival waves from within i-th cluster
     10.3 Double directional angular spread
11 Statistical model in static usage
     11.1 Definition
     11.2 System model
          11.2.1 Probability density function of received power
          11.2.2 Autocorrelation function of received signal level
          11.2.3 Power spectrum of received signal
          11.2.4 Values
          11.2.5 Examples