Patent ID: 7821916

Claim:
A method of performing timing and frequency estimation in a MediaFLO™ (Forward Link Only) mobile multimedia multicast system comprising a receiver and a transmitter, said method comprising: receiving a wireless data stream comprising a MediaFLO™ mobile multimedia multicast system superframe comprising Orthogonal Frequency Division Multiplexing (OFDM) symbols; estimating a Fast Fourier Transform (FFT) trigger point for each of the received OFDM symbols; estimating a fine carrier frequency offset of each of the received OFDM symbols by: obtaining an angle of a detected peak of a resulting OFDM symbol; and computing a frequency offset Δf by using an angle of peak of a correlator output equaling to 2πΔfN FFT /f s , wherein said N FFT corresponds to a FFT size and said f s corresponds to a chip rate; determining the start of said MediaFLO™ mobile multimedia multicast system superframe by locating a Time Division Multiplexed (TDM) pilot symbol in said superframe; estimating a coarse carrier frequency offset of each of the received OFDM symbols; and synchronizing said receiver to said start of said MediaFLO™ mobile multimedia multicast system superframe and the transmitted OFDM symbols based on said fine carrier frequency offset, said TDM pilot symbol, and said coarse carrier frequency offset.