Patent ID: 7177265

Claim:
A method for acquiring frequency and timing synchronization in a communication system comprising: (a) receiving a transmitted signal; (b) processing the received signal to reduce the frequency offset of the received signal based upon a frequency offset estimate; (c) despreading the processed received signal with a first despreading sequence to create a first despread signal; (d) despreading the first despread signal with a second despreading sequence to create a second despread signal; (e) estimating the frequency offset of the second despread signal to create a frequency offset estimate; (f) despreading the second despread signal at a first time offset to create a third despread signal; (g) despreading the second despread signal at a second time offset to create a fourth despread signal; and (h) comparing the energy of the third and fourth despread signals to determine a second despreading sequence.