公开(公告)号：SG119197A1

公开(公告)日：2006-02-28

申请号：SG200304873

申请日：2003-08-26

Applicant: ST MICROELECTRONICS ASIA

Inventor： KARTHIK MURALIDHAR S O A MURAL ,  SER WAH OH

IPC: H04B1/707 ,  H04L27/00

Abstract: A method and system for estimating a frequency offset between a receiver and a transmitter, including the steps of, or means for: (a) receiving a first signal (1) from said transmitter and demodulating the first signal (18); (b) performing a frequency shift on said first signal (18) by a predetermined frequency factor to generate a second signal (19); (c) filtering each of said first and second signals (46,45); (d) determining the power of each of the filtered first and second signals (48,47); (e) determining an upper corner frequency value of the first signal us ing the power of the filtered first and second signals; (f) determining a lower corner frequency of the first signal using the determined power of the filtered first and second signals; and (g) determining a frequency offset value based on said upper corner frequency value and said lower comer frequency value (49).