Patent ID: 9252839
Filing Date: 2016-02-02
CPC Classification: H04B

Claim Text:
1. A method of cancelling interference between a signal carried by an electrical line where powerline communications operate in a digital service distribution system at a subscriber's home and a signal carried by a telephone line of said system that is situated close to the electrical line, data symbols X i the same nature with i=(1,2) being obtained by a multicarrier coding method and sent via said electrical and telephone lines, wherein the method comprises: obtaining the powerline communications signal carried by the electrical line, filtering said obtained signal in a way adapted to obtain an estimate of the signal disturbing the signal carried by the telephone line, said filtering being based on a model of transmission channels of the symbols on said electrical and telephone lines as well as interference thereon by Rayleigh channels independent of one another and each varying in time, and subtracting said obtained estimate from the signal carried by the telephone line.