TRANSMISSION METHOD IN A "CLUSTERED" NETWORK

The invention relates to a method and system for broadcasting one or more signalling messages in a communication network comprising at least two clusters, characterised in that it comprises at least the following steps: at least one cluster leader of a first cluster transmits a signalling message M towards a set of nodes located in the cluster thereof, using a dedicated radio resource; the nodes of the first cluster, having received and decoded the signalling message M, relay said signalling message M towards one or more nodes of other clusters of the network which are within radio reach using a distributed cooperative coherent transmission mechanism, over a radio resource of a dedicated shared channel CS; said node or nodes, having received and decoded the signalling message M, transmit same to the cluster leader thereof using a distributed cooperative transmission method over a dedicated radio resource CHj.