Patent ID: 8331537
Filing Date: 2012-12-11
Classification: H04M

Abstract:
1. A method for managing a line topology, comprising: obtaining an actual transfer function of a line by performing one or more line tests; estimating a line diameter and a length of a bridge tap of the line and a line diameter and a length of a trunk line of the line according to the actual transfer function of the line and a transfer function of a bridge tap model; obtaining a transfer function of a line model with a position parameter of the bridge tap according to the estimated line diameters and lengths of the bridge tap and the trunk line, respectively; estimating a position of the bridge tap by comparing an error between the actual transfer function and the transfer function of the line model with the position parameter of the bridge tap; and generating a topology of the line according to the estimated line diameters and lengths of the trunk line and the bridge tap and the position of the bridge tap; wherein before the estimating the line diameter and the length of the bridge tap according to the actual transfer function of the line and the transfer function of the bridge tap model, the method further comprising: performing a noise canceling process of the obtained actual transfer function of the line, wherein the noise canceling process comprising at least one of: