Abstract: It is characterized by the assignment of a local transmission identifier to each link and a decoding of the information based on the local identifier of the assigned link and on the unequivocal identifier sent by the transmitter in its transmission period. It permits multiple links to be established between stations of a telecommunications network, in a way that is unicast (towards a single recipient) or multicast (towards multiple recipients) independently of the type of network or system used in the communication. It is applicable to telecommunication systems which apply an addressing system for the connection of stations and displays the advantages of minimizing the data overload due to the headers, facilitating the establishment of connections between two or more stations and making the addressing of the packets within the same network more flexible.

Abstract: Applicable to two-way communication over the electricity network between a plurality of user equipments (2) and a head-end equipment (1); characterized in that the receptors in the equipment (1, 2) continually monitor communication quality by estimating signal to noise ratio (S/N) in the individual carriers in the upstream and downstream channels. The user equipments monitor the state of the network at each moment in time independent of whether or not the transmission is destination for them. Optimum transmission mode is chosen as a result of this monitoring by means of modifying, packet by packet, the number of bits per carrier, the redundancy introduced by a FEC generator (forward error correction/detection), the FEC code, and/or the transmission mode; so as to achieve optimum sharing of the network in time and frequency at all times and to maximize the transmission capacity of the various user equipments by the network.