Policy on Intellectual Property Right (IPR)
Annex 1
 1     Introduction
 2     Model elements of the propagation prediction method
 3     Input parameters
        3.1     Basic input data
        3.2     Terrain profile
        3.3     Radio-climatic zones
        3.4     Terminal distances from the coast
        3.5     Basic radio-meteorological parameters
        3.6     Incidence of ducting
        3.7     Effective Earth radius
        3.8     Parameters derived from the path profile analysis
 4     The prediction procedure
        4.1     General
        4.2     Line-of-sight propagation (including short-term effects)
        4.3     Propagation by diffraction
                  4.3.1     The Bullington part of the diffraction calculation
                  4.3.2     Spherical-Earth diffraction loss
                  4.3.3     First-term part of spherical-Earth diffraction loss
                  4.3.4     Complete “delta-Bullington” diffraction loss model
                  4.3.5     The diffraction loss not exceeded for p% of the time
        4.4     Propagation by tropospheric scatter
        4.5     Propagation by ducting/layer reflection
        4.6     Basic transmission loss not exceeded for p% time and 50% locations ignoring the effects of terminal clutter
        4.7     Additional losses due to terminal surroundings
        4.8     Location variability of losses
        4.9     Building entry loss
       4.10     Basic transmission loss not exceeded for p% time and pL% locations
       4.11     The field strength exceeded for p% time and pL% locations
Attachment 1 to Annex 1  Path profile analysis
 1     Introduction
 2     Construction of path profile
 3     Path length
 4     Path classification
 5     Derivation of parameters from the path profile
        5.1     Transmitting antenna horizon elevation angle above the local horizontal, θt
        5.2     Transmitting antenna horizon distance, dlt
        5.3     Receiving antenna horizon elevation angle above the local horizontal, θr
        5.4     Receiving antenna horizon distance, dlr
        5.5     Angular distance θ (mrad)
        5.6     “Smooth-Earth” model and effective antenna heights
                  5.6.1     Deriving the smooth-Earth surface
                  5.6.2     Smooth-surface heights for the diffraction model
Attachment 2 to Annex 1  An approximation to the inverse complementary cumulative  normal distribution function
Attachment 3 to Annex 1  Criteria for ground reflection and calculation of first reflection maximum