DEVICES, SYSTEMS, AND METHODS FOR SYNCHRONIZATION OF BROADBAND WIRELESS COMMUNICATION SYSTEMS

1 . A method for synchronization of a time division duplex (TDD) frame in a remote station from a base station, the method comprising:

receiving a base station signal from the base station, the base station signal encapsulated in the TDD frame;

determining a propagation delay of the base station signal from the base station to the remote station; and

determining a start time of the TDD frame at the remote station based on a 1 pulse per second (PPS) signal of a global positioning system (GPS) module located at the remote station and the propagation delay to the remote station from the base station.

2 . The method of claim 1 wherein determining the propagation delay further comprises:

determining a differential distance between a location of the remote station and a location of the base station based on a downlink channel descriptor (DCD) message in the TDD frame and coordinates of the remote station obtained from the GPS module; and

translating the differential distance into the propagation delay.

3 . The method of claim 1 further comprising:

receiving a frequency value that indicates a frequency at which the propagation delay is determined.

4 . The method of claim 3 wherein the frequency value is based on whether the remote station is fixed or mobile.

5 . The method of claim 3 wherein the frequency value is based on a speed of the remote station.

6 . The method of claim 3 wherein the frequency value is set such that the propagation delay is less than or equal to 1 basic sample clock of the GPS.

7 . The method of claim 1 further comprising:

setting a sampling clock of the remote station to a frequency derived from a clock provided by the GPS module.

8 . The method of claim 1 further comprising:

setting a sampling clock of the base station to a frequency derived from a clock provided by the GPS module.