Symbol timing synchronization system for orthogonal frequency division multiplexing systems
US7561560B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2005 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | Apr 13, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03414
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention relates to a symbol timing synchronization system for orthogonal frequency division multiplexing system. According to the invention, the symbol timing synchronization system utilizes a shift register and a comparing device to determine whether the symbol of the orthogonal frequency division multiplexing system has the inter-symbol interference. When the symbol has the inter-symbol interference, a compensator is utilized to compensate the interfered symbol. Therefore, depending on the symbol timing synchronization system of the invention, the symbol timing error and the inter-symbol interference can be essentially removed so as to improve the system performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.