Patent Number: 7,821,916

Title: Timing and frequency acquisition for mediaflo systems

Abstract: An apparatus, logic, and method of performing timing and frequency estimation in a MediaFLO.TM. mobile multimedia multicast system comprising a receiver and a transmitter, wherein the method comprises receiving a wireless data stream comprising a MediaFLO.TM. 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 OFDM symbol; determining the start of the MediaFLO.TM. mobile multimedia multicast system superframe by locating a Time Division Multiplexed (TDM) pilot symbol in the superframe; estimating a coarse carrier frequency offset of each of the received OFDM symbols; and synchronizing the receiver to the start of the MediaFLO.TM. mobile multimedia multicast system superframe and the transmitted OFDM symbols based on the fine carrier frequency offset, the TDM pilot symbol, and the coarse carrier frequency offset.

Inventors: Yousef; Nabil (Foothill Ranch, CA)

Assignee: Newport Media, Inc.

International Classification: H04J 11/00 (20060101)

Expiration Date: 2018-10-26 0:00:00