Patent ID: 8908749
Filing Date: 2014-12-09
Classification: H04B,H04L,H04M

Abstract:
1. A method for controlling Digital Subscriber Line (DSL) transmission power, comprising: determining, by a spectrum maintenance center, a group to which a line belongs, and selecting a representative line from each group to form a line model; obtaining a crosstalk model of the line model; obtaining Transmit Power Spectrum Density (TxPSD) of each representative line in the line model according to the crosstalk model; converting the TxPSD into a spectrum control parameter; and adjusting a line rate according to the spectrum control parameter; wherein the step of converting the TxPSD into the spectrum control parameter comprises: converting the TxPSD into the spectrum control parameter that is capable of controlling the TxPSD of the representative line, wherein the spectrum control parameter comprises a power spectrum density mask (PSDMASK), and the PSDMASK is a sum of the TxPSD and a specific regulating amount.