Wireless access system for allocating and synchronizing uplink and downlink of TDD frames and method of operation

For use in a fixed wireless access network comprising a plurality of base stations capable of bidirectional time division duplex (TDD) communication with wireless access devices disposed at a plurality of subscriber premises, a TDD frame transmission synchronization apparatus comprising:

• a frame allocation controller capable of
• receiving, from a first radio frequency (RF) modem shelf associated with a first base station, access requests generated by a first group of wireless access devices communicating with said first base station, and
• determining, from traffic requirements associated with said access requests, a time duration of a longest downlink portion of TDD frames used by any one of a plurality of RF modems in said RF modem shelf to communicate with a first wireless access device within said first group of wireless access devices,
• wherein said frame allocation controller further determines a frame allocation of the downlink portion and the uplink portion of TDD frames used by said plurality of RF modems to communicate with said first group of wireless access devices,
• wherein said frame allocation is further determined from a time duration of a guard band between said uplink portions and said downlink portions.

A fixed wireless access network comprising:

• a plurality of base stations capable of bidirectional communication time division duplex (TDD) communication with wireless access devices disposed at a plurality of subscriber premises;
• and
• a TDD frame transmission synchronization apparatus comprising:
• a frame allocation controller capable of
• receiving, from a first radio frequency (RF) modem shelf associated with a first base station, access requests generated by a first group of wireless access devices communicating with said first base station and
• determining, from traffic requirements associated with said access requests, a downlink portion of TDD frames used by one or more of a plurality of RF modems in said RF modem shelf to communicate with one of said first group of wireless access devices that is longest relative to a downlink portion of TDD frames used by any other of said RF modems to communicate with one of said first group of wireless access devices, and a time duration of said longest downlink portion of TDD frames,
• wherein said frame allocation controller further determines a frame allocation of the downlink portion and the uplink portion of TDD frames used by said plurality of RF modems to communicate with said first group of wireless access devices.

A fixed wireless access network comprising:

• a plurality of base stations capable of bidirectional communication time division duplex (TDD) communication with wireless access devices disposed at a plurality of subscriber premises;
• and
• a TDD frame transmission synchronization apparatus comprising:
• a frame allocation controller capable of
• receiving, from a first radio frequency (RF) modem shelf associated with a first base station, access requests generated by a first group of wireless access devices communicating with said first base station and
• determining, from traffic requirements associated with said access requests, a time duration of a longest downlink portion of TDD frames used by any one of a plurality of RF modems in said RF modem shelf to communicate with a first wireless access device within said group of wireless access devices,
• wherein said frame allocation controller further determines a frame allocation of the downlink portion and the uplink portion of TDD frames used by said plurality of RF modems to communicate with said first group of wireless access devices,
• wherein said frame allocation is further determined from a time duration of a guard band between said uplink portions and said downlink portions.