This reduction of the interference between a first type of signal carrier current transmitted between two modems of an electrical network and a second signal transmitted between two modems of another network.

摘要

The present invention relates to a method and device for reducing interference between a first type of signal carrier current (is) transmitted between two modems (m) of an electrical network (re) and a second signal (s) transmitted between two modems (m) of another network (r), said signals (se, s) being encoded by the distribution of the data on the carrier frequencies allocated to a given frequency band bf reserved (). The process is characterized in that it comprises - a step (1) measured by each of the modem (m) of the electrical network of the transmission characteristics of each carrier frequency (f) which can be used for the coding of the first signal (is), - a step (2) of detection, by analysis of the transmission characteristics measured, at least one carrier frequency (f), called the second carrier frequency, which is allocated, or capable of being used to encode the second signal (s) and which is common with at least one carrier frequency (f), called the first carrier frequency, which is allocated to the coding of the first signal (is), and the transmission characteristics are measured are degraded with respect to those of a previous measurement, and - a step (3) for optimizing the distribution of the data of the first signal (is) on the carrier frequencies so as to minimize the power level of transmission of the first carrier frequency (f) which are common with the second carrier frequency (f) thus detected, while optimizing the transmission rate of the first signal (is).