Patent ID: 8537819
Filing Date: 2013-09-17
Classification: H04B

Abstract:
1. A power line communication apparatus for transmitting a packet to another power line communication apparatus through a power line, said power line communication apparatus comprising: a receiver for receiving the packet, which is transmitted using a first transmission mode, having a first address used for multicast as a destination address; a packet converter for converting the first address of the packet received by the receiver into a second address used for unicast; a modulation scheme setting unit for setting a modulation scheme of the packet, which corresponds to a second transmission mode which has a higher transmission rate than the first transmission mode, in accordance with a noise status of the power line between said power line communication apparatus and said other power line communication apparatus on the basis of the conversion; a transmission rate measuring unit for measuring a transmission rate of the packet at a first time interval; a transmission rate controller for controlling the transmission rate on the basis of the measured transmission rate; and a packet transmitter for transmitting, to said other power line communication apparatus, the packet having the second address, based on the modulation scheme set by the modulation scheme setting unit, wherein the transmission rate measuring unit changes the first time interval into a second time interval which is shorter than the first time interval on the basis of the measured transmission rate.