Symbol synchronization for communication
US8503592B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 6, 2012 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Feb 6, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2679
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communication system and method is disclosed that performs symbol boundary synchronization by generating a symbol alignment estimate from a partial signal correlation; and then refining the symbol alignment estimate via a carrier phase calculation. To generate the symbol alignment estimate, two methods are disclosed. After an estimate is determined, an embodiment provides for refining the symbol alignment estimate via a carrier phase calculation by determining a carrier phase of two adjacent carriers, determining a phase error as directly proportional to an offset from the start of a symbol, determining a phase difference contribution due to a communication channel and device hardware, and counter-rotating the determined carrier phase by an angle of a constellation point at a transmitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.