Patent ID: 7224754
Filing Date: 2007-05-29
Classification: H04L

Abstract:
1. A frequency offset compensation estimation system in a computer readable medium encoded with software being capable of being executed by a computer for a wireless local area network comprising: a frequency offset compensation device for correcting and compensating an inputted frequency offset signal and outputting a compensated offset signal, and then outputting the compensated offset signal to a quick Fourier transfer device located at a receiving end of the network so as to transfer the compensated offset signal into a time domain signal; a frequency offset estimation device for receiving a preamble sequence signal received by the receiving end and outputting an initial frequency offset signal amount to the frequency offset compensation device for compensation; a frequency offset residual phase estimation (FOS RPE) device for receiving the time domain signal from the quick Fourier transfer device and generating an offset phase amount; a frequency offset residual phase compensation (FOS RPC) device for compensating the offset phase amount; a residual frequency offset estimation (Residual FOE) device for generating a residual frequency offset signal of the time domain signal and feedbacking the residual frequency offset signal to the frequency offset compensation device for compensation; and a processor for receiving the Residual FOE.