Transmitter identification information signal detection...

Details Transmitter identification information signal detection... Transmitter identification information signal detection...

2011-06-14

2011-06-14

Phu, Phuong (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S343000, C375S340000, C375S316000

Reexamination Certificate

active

07961801

ABSTRACT:
A transmitter identification information (TII) signal detection circuit is suitable for an orthogonal frequency division modulation system. A TII signal detection circuit receives a TII signal and conducts a cross-correlation calculation on the TII signal and a phase reference symbol (PRS) so as to obtain a present cross-correlation result, and then, sums the cross-correlation results obtained by conducting cross-correlations on AVE_TF_NUM-1 pieces of TII signals and the PRS and the present cross-correlation result so as to obtain an accumulated cross-correlation result. After that, a plurality of indices corresponding to a plurality of maximal values in the accumulated cross-correlation result is found out according to the accumulated cross-correlation result. Finally, a present main identifier (MainId) and a present sub-identifier (SubId) are calculated according to the four indices corresponding to the four maximal values, wherein the cross-correlation calculation is conducted on the TII signal and the PRS of every two adjacent sub-carriers.

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