Determining the correlation between received samples and available replica samples
US7277476B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 1, 2003 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Apr 19, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/7075
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method, a processing unit and a system for determining the correlation between samples of a received code modulated signal and samples of replica code sequences. In order to simplify and accelerate the process, it is proposed that the received samples and the replica samples are aligned to each other and that the positions of the samples in the received signal and in the replica code sequences are grouped, each group comprising all positions at which the composition of the values of the samples of all of the replica code sequences is similar. The values of the received samples which are associated to a respective group are combined separately for each group to obtain a respective preliminary result. Then, a correlation value is determined for each replica code sequence by combining the preliminary results obtained for all groups separately for each replica code sequence, taking into account the values of the samples of the replica sequences in the respective group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.