Patent ID: 7173916

Claim:
For use in a fixed wireless access network comprising a plurality of base stations performing bidirectional time division duplex (TDD) communication with wireless access devices disposed at a plurality of subscriber premises, a radio frequency (RF) modem shelf comprising: a first RF modem communicating with a plurality of said wireless access devices using TDD frames, each TDD frame having an uplink for receiving data and a downlink for transmitting data; and a modulation controller associated with said RF modem shelf determining an optimum modulation configuration for each of said plurality of wireless access devices communicating with said first RF modem, wherein said modulation controller causes said first RF modem to transmit downlink data to a first wireless access device in a first data block within a TDD frame using a first modulation configuration and to transmit downlink data to a second wireless access device in a second data block within said TDD frame using a different second modulation configuration.