Patent ID: 7058125

Claim:
A data communications network comprising: a transmitting node; a receiving node; a communication channel for communicating an information signal between the transmitting node and the receiving node, the communication channel having one or more subchannels; the receiving node having a receive signal processor for determining for the or each subchannel, in dependence on the signal to noise ratio of the channel and a target transmission rate for the information signal at the transmitting node to effect transmission of the information signal to the receiving node with minimum transmission power and for communicating the gain factors for the or each subchannel signal from the receiving node to the transmitting node; the transmitting node having a transmit signal processor for applying the gain factors to the corresponding subchannel signal at the transmitting node, and transmitting the information signal to the receiving node; and, the receiving node, for each subchannel of each channel, partitioning the subchannels of the other channels based on subchannel characteristics into at least one high crosstalk subchannel and at least one low crosstalk subchannel, and selectively decoding the subchannel signal based on the subchannel characteristics in dependence on the signal on the at least one high crosstalk subchannel.