CONTENTS

RECOMMENDATION  ITU-R  P.1411-4     2
Propagation data and prediction methods for the planning of short-range outdoor radiocommunication systems and radio local area networks in the frequency range 300 MHz to 100 GHz     2
Scope     2
Annex 1     3
 1     Introduction  3
 2     Physical operating environments and definition of cell types  3
 3     Path categories  5
        3.1     Definition of propagation situations  5
                  3.1.1     Propagation over rooftops, non-line-of-sight (NLoS) 5
                  3.1.2     Propagation along street canyons, NLoS  7
                  3.1.3     Line-of-sight (LoS) paths  8
        3.2     Data requirements  8
 4     Path loss models  8
        4.1     LoS situations within street canyons  8
UHF propagation     8
SHF propagation up to 15 GHz     9
Millimetre-wave propagation     10
        4.2 Models for NLoS situations  11
Propagation for urban area     11
Propagation for suburban area     11
Millimetre-wave propagation     11
                  4.2.1 Propagation over roof-tops for urban area  11
                  4.2.2 Propagation over roof-tops for suburban area  14
                  4.2.3 Propagation within street canyons for frequency range from 800 to 2 000 MHz     16
                  4.2.4 Propagation within street canyons for frequency range from 2 to 16 GHz  16
        4.3 Propagation between terminals located below roof-top height at UHF  17
        4.4     Default parameters for site-general calculations  20
        4.5     Influence of vegetation  20
 5     Building entry loss  20
 6     Multipath models  21
        6.1     Multipath models for street canyon environments  21
        6.2     Multipath models for over-rooftops propagation environments  22
 7     Number of signal components  23
 8     Polarization characteristics  26
 9     Characteristics of direction of arrival 26
10 Fading characteristics  26