Packet detector for a communication system
US7539241B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 22, 2004 |
| Grant date | May 26, 2009 |
| Priority date | — |
| Expiry date | Jan 18, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/042
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for packet detection is described. More particularly, a signal having sub-signals is received. The signal is quantized (“re-quantized”) to provide a quantized signal to processing units, where the quantized signal is a sequence of samples. A cross-correlation is done between the sequence of samples and a reference template, including totaling partial results from the processing units to provide a result. The result is a symbol timing synchronization responsive to the cross-correlation, which is provided in part by combining by addition or subtraction a regression vector obtained from the sequence of samples and a coefficient term vector obtained from the reference template.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.