Initial cell search algorithm for 3G FDD wireless communication systems
US6826244B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2001 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Nov 21, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W48/16
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method for establishing initial synchronization for the link between a UE and a base station in a communication network uses window exclusion logic in order to avoid a deadlock condition upon a detection of the wrong public land mobile network (PLMN). The communication signal is processed in a three step decision process. The first decision step determines a chip offset of the strongest path detected over a frame of samples. In response to the first decision, the second step generates a scrambling code group number and slot offset for retrieving the secondary synchronization code. The third decision step retrieves a primary scrambling code in response to the code group number for synchronizing the UE to the base station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.