Method and apparatus for vectored data communication

An apparatus, comprising:

• a plurality of transmitters configured to be coupled to communication connections and to transmit vector training signals via the communication connections;
• and
• a vectoring device configured to reduce the influence of crosstalk between at least some of the communication connections by vectoring, wherein the vectoring device is further configured to adapt the vectoring based on error information and non-crosstalk noise information received in response to the transmitting of the vector training signals,
• wherein the non-crosstalk noise information indicates whether noise other than crosstalk influencing the vector training signals was detected and comprises information regarding a magnitude of such noise, so that the crosstalk reduction implemented by the vectoring device does not deteriorate with the use of the non-crosstalk noise information,
• wherein the error information indicates a deviation between sent and received vector training signals.

A method of reducing crosstalk for vectored communication, comprising:

• receiving vector training signals transmitted via a communication connection;
• evaluating noise other than crosstalk influencing the vector training signals;
• and
• transmitting a noise indication via the communication connection based on the noise evaluation and an error signal via the communication connection, the noise indication indicating whether noise other than crosstalk influencing the vector training signals was detected and comprising information regarding a magnitude of such noise, the error signal indicating a deviation between sent and received vector training signals, wherein evaluating the noise comprises comparing a deviation of a received synchronization symbol from an expected value with an average deviation between synchronization symbols received and their respective expected values.

A method of reducing crosstalk for vectored communication, comprising:

• transmitting vector training signals via a plurality of communication connections;
• reducing the influence of crosstalk between at least some of the communication connections by vectoring;
• and
• adapting the vectoring based on error information and non-crosstalk noise information received in response to the transmitting of the vector training signals,
• wherein the non-crosstalk noise information indicates whether noise other than crosstalk influencing the vector training signals was detected and comprises information regarding a magnitude of such noise, so that the crosstalk reduction implemented by the vectoring device does not deteriorate with the use of the non-crosstalk noise information,
• wherein the error information indicates a deviation between sent and received vector training signals.