Synchronization signal detection
US10652068B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2016 |
| Grant date | May 12, 2020 |
| Priority date | — |
| Expiry date | Apr 14, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Detection of Narrow-Band IOT (NB-IOT) Synchronization signal and Cyclic Prefix length determination at UE. The detection method implements symbol level correlation, comprising: filtering the radio signal with a plurality of matched filters to obtain a correlation for each OFDM symbol in the synchronization signal, wherein each matched filter provides a correlation with one OFDM symbol in the synchronization signal; delaying and combining the outputs of the plurality of matched filters in a first way to provide a first combined output for the normal cyclic prefix configuration and delaying and combining the outputs of the plurality of matched filters in a second way to provide a second combined output for the extended cyclic prefix configuration; and detecting a correlation peak indicative of the synchronization signal in one of the first or second combined outputs. The present disclosure also relates to a user equipment including the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.