Method for the prediction of coverage areas of a cellular network

摘要

A method predicting coverage area of a radiocommunications network including plural network cells distributed over a geographic area. The method includes calculating by simulation an irradiated electromagnetic field irradiated by a radio base station of the network in plural measure locations within the geographic area corresponding to respective expected positions of a user terminal. The calculating includes, for each measure location, calculating a basic transmission curve indicative of a basic attenuation of a radioelectric signal strength in the measure location, and associating to the basic transmission curve at least one correction factor for refining the radioelectric signal strength basic attenuation by taking account of shielding effects on the radioelectric signal strength due to obstacles to the propagation of the radioelectric signal.

主权项

1. A method for predicting coverage area of a radiocommunications network including a plurality of network cells distributed over a geographic area, the method comprising:
calculating by simulation, in circuitry, an irradiated electromagnetic field irradiated by a radio base station of the network in a plurality of measure locations within the geographic area corresponding to respective expected positions of a user terminal; and allocating radio resources in the radiocommunications network in accordance with said calculating, wherein said calculating comprises, for each of said measure locations:
calculating a basic transmission curve indicative of a basic attenuation of a radioelectric signal strength in the measure location,associating to the basic transmission curve at least one correction factor for refining the radioelectric signal strength basic attenuation by taking account of shielding effects on the radioelectric signal strength due in obstacles to the propagation of the radioelectric signal, wherein said associating to the basic transmission curve said at least one correction factor includes:
calculating for the measure location at least one equivalent volume parameter indicative of an equivalent volume of said obstacles taking into account a plurality of neighbor elementary areas in a prescribed neighborhood relationship to a measure elementary area to which the measure location is associated, andcalculating an equivalent volume correction factor by associating each one of the at least one equivalent volume parameter to a corresponding parametric curve expressing the signal attenuation as a function of the respective at least one equivalent volume parameter.