Code group acquisition procedure for a UMTS-FDD receiver
US7369577B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2002 |
| Grant date | May 6, 2008 |
| Priority date | — |
| Expiry date | Jun 7, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/709
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Step 2 demodulation is conventionally performed using a secondary synchronization channel that correlates a received signal at a known time slot location against each of a plurality of sequences associated with the secondary synchronization code. The disclosed implementation proposes the use of a different synchronization channel to complete the step 2 process. More specifically, a complete synchronization channel correlator is used for the demodulation where the received signal at the known time slot location is correlated against a combination of the primary synchronization code and each of the plurality of secondary synchronization codes. This combined correlation produces enhanced step 2 performance in terms of acquisition time or signal-to-noise ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.