Transmitter identification information signal detection apparatus and method
US7961801B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2008 |
| Grant date | Jun 14, 2011 |
| Priority date | — |
| Expiry date | Dec 12, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H2201/20
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.