| 摘要 |
An apparatus comprising a transceiver placed in a customer premise equipment, CPE, (104), coupled to a crosstalk precoder (108) through a digital subscriber line, DSL, (106), and configured to send a feedback error message (800, 900, 1000) to train the crosstalk precoder (108). The feedback error message (800, 900, 1000) comprises
a first field for carrying a plurality of error components (810, 910, 1010), wherein the error components correspond to a plurality of tones in a received pilot symbol, and
a second field for carrying information (820, 1020) which indicates a quantity of bits per error component. |
