Method for transmitting a signal via a power line network, transmitter, receiver, power line communication modem and power line communication system

摘要

A method for transmitting signals over a power line network, wherein within the power line network at least one transmitter and at least one receiver communicate via at least two channels, each channel including a respective feeding port of at least one transmitter and the respective receiving port of the at least one transmitter and transmitter including at least two feeding ports. The method: determines a channel characteristic of each of the channels; applies a feeding port selection criterion based on the channel characteristic; and selects an excluded feeding port among the at least two feeding ports based on the feeding port selection criterion, wherein the excluded feeding port is not used during further communication. A corresponding power line communication modem can implement the method.

主权项

1. A Power Line Communication (PLC) transmitter connectable to phase, neutral, and protective earth wires of a power line network, the PLC transmitter comprising:
a first feeding port that is connectable to the phase and neutral wires and that is configured to output a first communication signal for transmission from the transmitter; a second feeding port that is connectable to the phase and protective earth wires or to the neutral and protective earth wires and that is configured to output a second communication signal for transmission from the transmitter; circuitry configured to perform a feeding port selection operation, based on a determination of presence of a disturbance of the power line network, for output of at least one of the first communication signal and the second communication signal, for data transmission, via at least one of the first feeding port and the second feeding port, respectively, based on the feeding port selection operation; and transmitting circuitry that transmits data via a selected feeding port, the transmitted data being at least one of the first communication signal and the second communication signal, wherein the disturbance of the power line network is a periodic impedance change based on line cycle duration.