Dynamic adjustment of transfer characteristics as a function of channel characteristics

摘要

A method, system and computer program product to adjust transfer rates on conductors in a multi-conductor cable comprising monitoring signals received on each conductor, determining a Signal to Noise Ratio (SNR) for each conductor and adjusting a transfer rate on one or more conductors based on the corresponding SNR. In an embodiment the multi-conductor cable is a twisted pair Ethernet cable. The method further comprises determining whether a conductor is transmitting at an optimal transfer rate as a function of its SNR, calculating an optimal transfer rate for each conductor as a function of its SNR and periodically measuring a change in SNR on each conductor. If the change in SNR is greater than a predetermined threshold, then the transfer rate is re-calculated for the conductors requiring transfer rate adjustment as a function of SNR.

主权项

1. A method to adjust transmit data rates on a plurality of conductors in a multi-conductor cable, comprising:
using a channel sensor, monitoring signals received on each conductor of said plurality of conductors; determining a Signal to Noise Ratio (SNR) for each conductor of said plurality of conductors, using the channel sensor; and using a transfer characteristics adjuster, adjusting a transmit data rate on a conductor of said plurality of conductors based on the corresponding SNR of the conductor when the transmit data rate for the conductor is below a predetermined threshold.