| 摘要 |
The present invention discloses a method for joint secondary synchronization signal detection and frame timing synchronization, including: (1) generating local secondary synchronization sequences SSC1-n and SSC2-n according to a sector number of a cell group; (2) converting a received time domain signal to a frequency domain signal to obtain secondary synchronization signals S1 and S2 to be detected; (3) performing inner product operation to obtain P1-n=P1-n-1+[S1,SSC1-n]+[S2,SSC2-n], and P2-n=P2-n-1+[S1,SSC2-n]+[S2,SSC1-n]; (4) selecting the maximum value P of absolute values of correlation values in the P1-n and P2-n, and judging whether the maximum value P is greater than a preset threshold Tmax, (5) if yes, taking the index of the maximum value P as an ID number of the cell group, or else, further carrying out step (2), and then further carrying out step (3).
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