Patent ID: 8891601

Claim:
A transceiver in a communication system comprising: an auto-negotiation circuit for performing an auto-negotiation procedure to determine whether the transceiver operates as a master or slave transceiver; a timing recovery circuit; an interference cancellation circuit; an analog automatic gain controller for adjusting strength of an input signal received by the transceiver; a digital automatic gain controller for adjusting strength of a near-end interference cancellation signal generated by the interference cancellation circuit; and an equalizer; wherein if the transceiver operates as a slave transceiver, the transceiver executes a first stage and a second stage when starting up; in the first stage, the transceiver performs channel estimation to generate a channel estimation value, presets parameters of the equalizer according to the channel estimation value, and trains the timing recovery circuit and the equalizer; in the second stage, the transceiver trains the interference cancellation circuit; wherein the first stage is before the second stage.