Vectored DSL nesting
US7688884B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2006 |
| Grant date | Mar 30, 2010 |
| Priority date | — |
| Expiry date | Mar 31, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/32
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Methods, apparatus, systems and computer program products address one-sided vectoring systems that include a bonded-line set having two or more bonded DSL lines within a vectored group wherein other techniques such as precoding, tonal predictive GDFEs, tonal rotors and ordering techniques can be implemented. The performance of lines within a bonded set for a single customer can be improved for both upstream and downstream by nesting a vector coding system within, for example, GDFE and/or precoder architectures. The DSL lines within such a bonded group can have rotors applied at both transmit and receive side to achieve higher performance for these lines. The triangular matrix used by the GDFE and the precoder systems of the above-referenced applications can be modified in this context.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.