System and method for selectable mask for LDSL
US7272172B2 · kind B2 · utility
14Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2003 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | Oct 28, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13396
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention overcomes various problems by defining two upstream masks (U1, U2) and two downstream masks (D1, D2) and using a mask selectable system for the long reach digital subscriber line (LDSL), in which a unique modem feature is activated during handshake to automatically check for physical layer status in terms of spectral compatibility and, thus, automatically optimize the boosted mode with the use of the mask selectable system choose the best combination of upstream/downstream masks in any physical layer noise scenario.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.