Patent ID: 8472615
Filing Date: 2013-06-25
Classification: H04B,H04M

Abstract:
1. A method for power adjustment, comprising: determining whether transmission power of a line needs adjustment according to feedback during of a Vectored-Digital Subscriber Line (Vectored-DSL) filter; and adjusting the transmission power when the transmission power of the line needs adjustment; wherein the determining whether the transmission power of the line needs adjustment according to the feedback errors comprises: training by using an initialized transmission power P increasing the transmission power by an adjustment value, and re-obtaining feedback errors of the other subscribers within the vector group; analyzing an influence on the other subscribers caused by the increase of the adjustment value to the transmission power according to the feedback errors, and establishing a correlation coefficient table corresponding to the adjustment value; determining an adjustment threshold ΔP according to the correlation coefficient table; determining that the transmission power needs adjustment when ΔP determining that the transmission power needs no adjustment when ΔP wherein ΔP wherein in which, wherein e