Title: Method and apparatus for automatic frequency correction
Application Number: 200480033982 Application Date: 2004.11.13
Publication Number: 1922806 Publication Date: 2007.02.28
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H04B15/00
Applicant(s) Name: Interdigital Tech Corp. Address:
Inventor(s) Name: Grieco Donald M.;Bultan Aykut
Attorney & Agent: ren yongwu
Abstract:
    The present invention is related to a method and apparatus for automatic frequency correction of a local oscillator. The apparatus receives a carrier signal. The carrier signal includes a code sequence known to the apparatus. The apparatus downconverts the carrier signal to a baseband signal using the local oscillator. The apparatus performs a block correlation of the samples of the baseband signal with the known code sequence to generate a frequency error signal. The frequency error signal is fed back to the local oscillator to correct the frequency error.
Time: 6