OFDM transmission/reception apparatus having a guard interval length changing function
US6714511B1 · kind B1 · utility
56Cited by
12References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1999 |
| Grant date | Mar 30, 2004 |
| Priority date | — |
| Expiry date | Dec 16, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2605
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The subtractor of the reception system calculates the channel quality using an optimal guard interval length detection signal inserted into one carrier by the transmission system, then the optimal guard interval length detector calculates the minimum guard interval length necessary to eliminate delayed signals using this calculated channel quality, inserts the control signal indicating this guard interval length into one carrier and the reception system sets the guard interval length using this control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.