Patent ID: 9301168
Filing Date: 2016-03-29
CPC Classification: H04W

Claim Text:
1. A method for managing a degraded mode of a cell in a cellular telecommunications network, said network comprising a site controller configured to control, via a packet network, a plurality of transmitters distributed on different sites of the cell such that the transmitters implementing the same pair of frequencies over the different sites form a channel, which in dynamic mode is allocated dynamically to any communication between terminals of the cell, said channel comprising a master transmitter selected by the site controller among the transmitters forming the channel, the master transmitter associated with the channel being constructed to synchronize transmission from all of the transmitters of the channel of a message to the terminals present in the cell, the method comprising, in each master transmitter and upon detection of a failure of the site controller that prevents control of the plurality of transmitters by the site controller: inhibiting the dynamic allocation of transmission channels and switching the master transmitter from the dynamic mode to a degraded mode, enabling a predefined transmission channel known to terminals to be statically associated with a predefined communication known to terminals, and transmitting from the master transmitter to at least one control console positioned outside of the cell, via the packet network, a control message informing the at least one control console connected to the packet network of the implementation of the degraded mode to enable the control console to participate, via said packet network, in a communication in progress in the channel, and to initiate, via said packet network and said channel, a communication with a terminal present in the cell.