Flexible data transmission scheme adaptive to communication channel quality
US9001872B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2012 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Nov 7, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/351
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for transferring data along a link with a 10GBASE-T transceiver at a variable data rate are disclosed. One exemplary method includes detecting a link quality metric; and selecting a symbol transmission rate and a data modulation scheme based on the detected link quality metric. In many implementations, for a selected symbol transmission rate, if the detected link quality metric is less than a link quality threshold, then the selecting of the data modulation scheme is performed such that a data bit per symbol value represented by the selected data modulation scheme is decreased by at least ½ data bit per symbol. The selected symbol transmission rate and the selected modulation together represent a selectable data rate from a selection of data rates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.