Apparatus and method of frame synchronization in broad band...

Details Apparatus and method of frame synchronization in broad band... Apparatus and method of frame synchronization in broad band...

2008-03-07

2011-10-18

Lai, Andrew (Department: 2473)

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

C370S350000, C370S395620

Reexamination Certificate

active

08040922

ABSTRACT:
The present invention relates to an apparatus and method of frame synchronization in broad band wireless communication systems. In an apparatus of frame synchronization in a mobile station, a time variant phase rotation compensator eliminates time variant phase rotation carried in received signals by conjugated multiplication between adjacent signal samples. Then, the processed signal is fed into a delay correlator to calculate a plurality of correlations between two successive frames. A local power calculator acquires an average power of several symbols centered on delayed correlation values. A normalizer normalizes the delayed correlation values with a local average power corresponding to the delayed correlation values. A maximum value detector selects the maximum value from normalized correlation values to trigger frame synchronizing and timing signals.

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