ACTIVATION METHOD AND APPARATUS FOR NEWLY JOINED LINE PAIRS IN XDSL SYSTEM, AND XDSL SYSTEM

摘要

The embodiments of the invention disclose an activation method and apparatus for newly joined line pairs in an xDSL system. The method includes: according to the crosstalk offset coefficient among the line pairs at the data transmission stage and the number of the newly joined line pairs, constructing an initial pilot sequence; according to the initial pilot sequence, estimating the crosstalk offset coefficient of the newly joined line pairs to the line pairs at the data transmission stage; according to the crosstalk offset coefficient of the newly joined line pairs to the line pairs at the data transmission stage, constructing an augmented pilot sequence on the basis of the initial pilot sequence; according to the augmented pilot sequence, estimating the crosstalk offset coefficient of the line pairs at the data transmission stage to the newly joined line pairs; and activating the newly joined line pairs to be online and into the data transmission stage. The invention is used to activate the newly joined line pairs to be online in the xDSL system.