Patent ID: 6947708
Filing Date: 2005-09-20
Classification: H04W

Abstract:
1. A method of estimating in an anticipatory manner radio coverage of a cell of a cellular, wireless telephone network, by using a radio station for managing the traffic of the cell and a database of a relief map specifying positions of salients in the cell and what the salients are, the method being performed with a computation system, the computation system performing the following steps: (a) simulate transmission into the cell of a sampling beam that renders the conditions of radioelectric propagation along an initial segment of a path from an initial position and along one direction and in specific conditions of propagation, (b) compare the path segment with the data of the relief map to identify the position and the nature of a salient at any instantaneous incidence site of the path segment by responding to the database, (c) determine, according to the data for the salient specified in the database, new propagation conditions on a downstream path segment beyond the incidence site, (d) iterate as called for by steps (b) and (c) a given number of times for other downstream path segments, (e) determine, according to the propagation conditions along an entire path between a transmitter and a receiver, a cumulative attenuation for any selected site of the path, (f) repeat steps (a)-(e) a plurality of times for a plurality of initial directions to sample the entire cell and thereby ascertain a map of attenuations of the selected sites, (g) during an initial phase: (h) during an operational phase