Patent ID: 8854943

Claim:
A system for exchanging vectoring information between line cards of a vectoring group, comprising: a data connection; a first line card coupled to a first plurality of subscriber lines and configured to communicate discrete multi-tone (DMT) signals across the first plurality of subscriber lines, the first line card coupled to the data connection and configured to transmit a vectoring stream across the data connection, the vectoring stream having a plurality of time slots respectively corresponding to tones communicated by the first line card, the first line card configured to insert a symbol into one of the time slots corresponding to a tone communicated by the first line card, wherein the first line card is further configured to dynamically adjust a size of the one time slot in response to a change in bit loading for the tone corresponding to the one time slot; and a second line card coupled to a second plurality of subscriber lines and configured to communicate DMT signals across the second plurality of subscriber lines, the second line card coupled to the data connection, the second line card further configured to receive the vectoring stream from the data connection and to perform vectoring based on the symbol, thereby compensating at least one symbol communicated by the second line card for crosstalk, wherein the first line card is configured to transmit to the second line card control information indicative of the size of the one time slot.