Correlation detection method and apparatus, transmission diversity detection method and apparatus, each method and apparatus for detection within a small time unit
US7313173B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 4, 2002 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | May 2, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/7085
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
One code is generated by combining (including addition) 2 or more codes, correlation detection method which detects the correlation by multiplying such a generated code by the reception data. In communication system based on W-CDMA method, first spreading code (a·Cp) obtained by multiplying primary synchronization code with a predetermined coefficient and second spreading code (a·Cs) obtained by multiplying secondary synchronization code with a predetermined coefficient are added. Then, the third spreading code (a·Cp+a·Cs) obtained from such an addition is multiplied by the reception data, and correlation value is obtained after integrating the multiplication results. Thus, it is determined whether the reception data has been subjected to STTD diversity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.