Transceiver spectrum control for cross-talk mitigation

A method of preprocessing a transmit signal of an Ethernet transceiver having a plurality of sub-transceivers, the method comprising:

• exchanging parameters of a communication link between the Ethernet transceiver and a link partner transceiver;
• adjusting at least one of a transmission protocol or a data rate based on the exchanged parameters;
• independently adjusting a transmit power level for each of the sub-transceivers based on the exchanged parameters and the adjusted transmission protocol or data rate;
• and
• estimating cross-talk coupling between sub-transceivers during states of operation of the Ethernet transceiver when a subset of the sub-transceivers is transmitting.

An Ethernet transceiver, comprising:

• a receiver for obtaining parameters of a communication link between the Ethernet transceiver and a link partner transceiver;
• the receiver obtaining cross-talk coupling information of the Ethernet transceiver to at least one other transceiver;
• the receiver adjusting at least one of a transmission protocol or a data rate based on the information;
• a controller operative to adjust a transmit power level based on the estimated parameters, the adjusted transmission protocol or data rate, and cross-talk;
• and
• wherein the Ethernet transceiver includes a plurality of sub-transceivers, and wherein each of the plurality of the sub-transceivers independently adjusts the transmit power level.