Radio telecommunication network

Abstract

The invention relates to the field of telecommunication networks of the GSM type. A telecommunication network comprises at least one terminal, for example 105, able to switch from idle mode to dedicated mode when a communication is established and a plurality of cells, for example 101 and 102, on which the terminal can camp in idle mode or dedicated mode and controlled by base stations, for example 103, intended to manage such a switching when a communication is established. One purpose of the invention is to avoid a terminal camping in idle mode on a cell on which it cannot camp in dedicated mode, because of a fault in the base station controlling this cell, at the time of switching. For this purpose, the terminal comprises detection means 109 able to detect a fault in a base station at the time of switching, means 110 of identifying the cell controlled by such a faulty base station, means 111 of establishing a black list of cells controlled by faulty base stations and means 112 of selecting a cell for camping of the terminal in idle mode, a selection criterion being the presence or not of a cell in the black list. The invention has an interest for all mobile networks, an interest which is all the greater, the older the installations in the network, since the number of faulty base stations may then be relatively high.

Dependencies are inferred from the claim text.