Patent ID: 7397859

Claim:
A method of communicating between a transmitter and a receiver in a wireless multi-carrier system comprising the steps of: setting in the transmitter an initial number of carriers and an initial symbol rate at which symbols are transmitted from the transmitter to the receiver; transmitting a first group of symbols using the initial number of carriers and the initial symbol rate; changing in the transmitter the rate at which symbols are transmitted from the transmitter to the receiver from the initial symbol rate to a subsequent symbol rate that is different than the initial symbol rate; and transmitting a second group of symbols using the initial number of carriers and the subsequent symbol rate, wherein the step of changing the rate at which symbols are transmitted includes the step of changing a frequency that is used to clock a serial to parallel converter, a divide by N counter coupled to an iFFT, and a parallel to serial converter by changing a multiplexer output, thereby selecting a different circuit capable of generating the subsequent symbol rate rather than a previous circuit capable of generating the initial symbol rate.