Self-interference, echo and crosstalk mitigation in multi-lane interconnects

A system for mitigating an interference signal in a multi-lane interconnect, comprises:

• a first device comprising a plurality of transceivers, and a ratioed impedance controller;
• a second device comprising a plurality of transceivers, and a ratioed impedance controller;
• a multi-lane interconnect circuit connecting the first device with the second device using a multi-lane interconnect, wherein the multi-lane interconnect circuit is one of a single-ended transmission line circuit and differential-ended transmission line circuit between the first device and the second device, wherein the multi-lane interconnect circuit is configured to transmit a first signal to the second device on a first transmission line of the multi-lane interconnect;
• wherein a ratioed impedance controller of the first device is configured to:
• transmit the first signal using a Main Line Driver (MLD) to the second device on the first transmission line of the multi-lane interconnect between the first device and the second device;
• receive a second signal transmitted from the second device on the first transmission line while simultaneously transmitting the first signal to the second device on the first transmission line, wherein a signal at a Receiver Frontend (RFE) input of the first device comes through a ratioed impedance circuit of the first device and comprises the second signal and the interference signal;
• adjust a plurality of impedances such that an input impedance (Zin) seen into the first device from the first transmission line matches a characteristic impedance (Z0) of the first transmission line;
• and
• tune a Ratioed Driver (RD) of the first device to cancel or suppress at least a Self-Interference (SI) at the RFE input of the first device caused by the first signal.