AN ADAPTIVE POWER ADJUSTMENT METHOD AND MEANS BASED ON REDUCING CROSSTALK AMONG DSL LINES

摘要

An adaptive power adjustment method and means based on reducing cross talk among DSL lines includes: calculating the cross talk power spectrum density and the cross talk function from the neighboring line in current line; calculating the transmission power spectrum density of the current terminal device according to the obtained cross talk power spectrum density and cross talk function; and the current terminal device controlling the transmission power based on the transmission power spectrum density. According to the adaptive power adjustment method of the present invention, the transmission power can be increased or decreased. The disadvantageous effect due to the cross talk among xDSL lines is reduced. Present invention can eliminate or reduce adequately the strong impact on remote terminal application scene, and make the lines achieve the optimum operation state.