Method of communication in a co-operative network

A communications node for a telecommunications network, the node comprising:

• training means suitable for determining a “transmission” filter as a function of a received training signal;
• and
• data transmission means for transmitting data to a target entity of the network, while using said transmission filter determined by the training means;
• wherein the training means comprise:
• means for listening to a first training signal coming from the target entity of the network;
• means for verifying that the first training signal has been received correctly;
• means for determining the transmission filter as a function at least of the first training signal, and means for transmitting an intermediary training signal or a second training signal pre-equalized by a “focusing” pre-equalizing filter as determined as a function of the first training signal and activated in response to correctly receiving the first training signal;
• and
• means for listening to a second training signal and means for determining the transmission filter as a function at least of the second training signal, which means are activated in the absence of the first training signal being received correctly and in response to said second training signal being received correctly.

A management entity for a telecommunications network, the entity comprising:

• receiver means for receiving messages containing powers that can be achieved at the target entity, which messages are transmitted by a group of communications nodes that have correctly received a first training signal;
• test means for testing an enlargement condition as a function of said powers;
• and
• sender means, activated when said enlargement condition is true, for sending to the communications nodes of said group instruction messages instructing the communications nodes of said group to transmit a second training signal.

A management method performed by a management entity of a telecommunications network, the method comprising:

• a step of receiving messages containing powers that can be achieved at a target entity as transmitted by a group of communications nodes that have correctly received a first training signal;
• a step of testing an enlargement condition as a function of said powers;
• and
• when said enlargement condition is true, a step of sending to the communications nodes of said group instruction messages instructing the communications nodes of said group to transmit a second training signal.