Calibrating received signal measurements in a digital subscriber line device
US8102903B2 · kind B2 · utility
1Cited by
0References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2007 |
| Grant date | Jan 24, 2012 |
| Priority date | — |
| Expiry date | Aug 15, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/30
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for calibrating received signal measurements in a digital subscriber line (DSL) device are disclosed. In an exemplary method, a received signal level is measured for each of one or more subcarriers of a digital subscriber line signal and converted into a corresponding measured power level. A corrected received power level is calculated as a function of the measured power level, a reference input impedance value, a nominal loop impedance value, and a pre-determined input impedance value for the DSL device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.