METHOD AND APPARATUS FOR DETERMINING PATH ATTENUATION OF RADIO WAVES

摘要

The invention relates to a method and an apparatus for determining path attenuation of radio waves in a radio system, in which method at least a two-dimensional vector map describing the environment of a base station is used for determining the coverage area of the base station of the system, and in which the strength of the emission of a transmitter is determined at various points in the environment. To determine propagation attenuation preferably when determining the strength of the emission of the transmitter at each location point of the transmitter to be examined, the calculation is restricted to a polygon area (500, 502, 504) determined from a calculation area described by the vector map, radio waves being able to propagate to the polygon area both directly and by means of diffraction and reflections.