Using FEC statistics to tune serdes
US9252809B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 11, 2012 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Apr 20, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/05
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Serializer-Deserializer (SerDes) operation is optimized for signals based on signal error statistics. Forward Error Correction (FEC) may provide feedback of error statistics or error correction statistics to a SerDes tuner, which uses the statistics to selectively tune or adjust SerDes operating parameters, such as vertical and horizontal sampling or slicing offsets, gain and equalization, to decrease the bit error rate (BER). Statistics report which bits and patterns are corrected and to what values. Knowledge of expected and actual signals is leveraged to correlate detected errors with underlying problems and solutions to optimize SerDes operation. Each node in a network, such as a Ethernet Passive Optical Network (EPON), is enabled to fine tune its operation independently for each logical or physical channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.