Patent ID: 9712276
Date: 2017-07-18
CPC Classifications: H04L

Claim:
1. An apparatus, comprising: a receiver at a receipt location configured to receive, from a vectored very high bit rate digital subscriber line, VDSL, communication connection, a multi-carrier signal comprising a group of signal carriers; an error calculator configured to determine, for each of the signal carriers of the group, at least one individual deviation of a symbol of the received multi-carrier signal from an expected symbol, and to determine a combined deviation from the individual deviations; a quantizer configured to generate quantized deviations from the individual deviations and the combined deviation, the quantized individual deviations having a first bit number and the quantized combined deviation having a second bit number which is higher than the first bit number; and a transmitter at the receipt location configured to transmit the quantized individual deviations and the quantized combined deviation on a backchannel of the vectored VDSL communication connection.