Abstract: An architecture for combining full-duplex and frequency division duplex communication systems, includes a coupler coupled to a terminal and configured to allow duplex transmissions of digital signals via the terminal. The subject architecture includes a filtering device coupled to the coupler and configured to divide a downstream signal received through the coupler into a plurality of downstream signals associated with a plurality of frequency ranges. The subject architecture includes a transmitter coupled to the coupler and configured to drive, through the coupler, an upstream signal comprising digital signals associated with the plurality of frequency ranges. The subject architecture also includes a plurality of receivers coupled to the filtering device and configured to receive respective ones of the plurality of downstream signals.