Patent ID: 9641219
Date: 2017-05-02
CPC Classifications: H04B,H04L

Claim:
1. A method for implementing sub-band power control in a power line communications (PLC) device, comprising: selecting one or more transmit sub-bands on which to transmit a frame to comprise instructions for a processor in the PLC device, the transmit sub-bands comprising groups of the carrier frequencies; generating the frame comprising: a tone map that indicates which transmit sub-bands are used to carry data for the frame, the tone map using two bits per transmit sub-band to indicate a status of each transmit sub-band; a resolution bit indicating an amount of power adjustment that has been applied to the carrier frequencies in the transmit sub-bands; and a mode bit indicating whether dummy bits are transmitted on carrier frequencies in the transmit sub-bands that do not carry data; and transmitting the frame on the selected transmit sub-bands.