The process of reduction of interference between a first signal type carrier current transmitted between modems of a power grid and a second signal transmitted between the modems of another electrical network.

摘要

Patent of invention: the process of reduction of interference between a first signal type carrier current transmitted between modems of a power grid and a second signal transmitted between the modems of another electrical network.The present invention relates to a process and a device for reducing the interference between a first signal of common type carrier (if) transmitted between modems (M ~ CPL ~) of an electrical network (RE), and a second signal (s) transmitted between modems (m) of the other electrical network (R) " Signals (if.S) is encoded by the distribution of data on carrier frequencies assigned to a same frequency band reserved (BF).The process is characterised by the fact that comprises: a step (1) measured by the modem (MCPL) of the electrical network of transmission characteristics of each carrier frequency (f) capable of being used for coding the first signal (if); a step (2) of detection, by anu00e1lis And the characteristics of the transmission measures, at least one carrier frequency (F ~ 2 ~ n)This second carrier frequency that is assigned or may be so to encode the second signal (s) that is common with at least one carrier frequency (F ~ 1 ~ m), the first carrier frequency.It is attributed to the encoding of the first signal (if) and whose transmission characteristics are degraded measures in relation to those of a precedent measure; and a step (3) optimization of the allocation of data of the first signal (if) on carrier frequencies in such a way as to M. Inimizar the level of transmission power of the first carrier frequencies (F ~ 1 ~,(m) that are common with the second carrier frequencies (F ~ 2 ~, n), thus detected, optimizing the flow of transmission of the first signal (if).