Systems and methods for signaling for vectoring of DSL systems
US8817907B2 · kind B2 · utility
4Cited by
2References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2009 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Nov 21, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/243
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The measurement of far-end crosstalk (FEXT) in a Digital Subscriber Line communications is instrumental in the ability of using a multiple input multiple output (MIMO) pre-coder to cancel FEXT. A reliable robust back channel for transmission of error is instrumental to provide error samples for the proper operation of a MIMO pre-coder. Bins can be dedicated to insure bandwidth from the customer premises equipment (CPE) to the central office (CO). By increasing the margin used in the bins, robustness can be added to this back channel between the CPE and CO.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.