| 摘要 |
The present invention relates to a method and device for reducing interferences between a first carrier current signal (Se) transmitted between modems (MCPL) of a power grid (Re) and a second signal (S) transmitted between modems (M) of another grid (R), said signals (Se, S) being encoded by data distribution over allocated carrier frequencies of a single reserved frequency band (BF). The method is characterized in that it comprises: a step (1) of measuring, by each modem (MCPL) of the power grid, the transmission characteristics of each carrier frequency (F) that may be used for encoding the first signal (Se); a step (2) of detecting, by analyzing the measured transmission characteristics, at least one carrier frequency ( F2,n ), referred to as a second carrier frequency, which is or may be allocated for encoding the second signal (S), and which is common to at least one carrier frequency (F1,m), referred to as a first carrier frequency, which is allocated for encoding the first signal (Se), and measured transmission characteristics of which are degraded relative to those of a previous measurement; and a step (3) of optimizing the data distribution of the first signal (Se) over the carrier frequencies in order to minimize the transmission power level of the first carrier frequencies (F1,m) that are common to the thus-detected second carrier frequencies (F2,n) while optimizing the transmission rate of the first signal (Se). |
