Error free dynamic rate change in a digital subscriber line DSL with constant delay
US7457993B2 · kind B2 · utility
2Cited by
9References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 16, 2005 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Nov 19, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/30
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for changing the data rate over an interleaved latency path overcomes shortfalls of the ADSL2 seamless rate adaptation (SRA) and dynamic rate repartitioning (DRR). The interleaver depth is allowed to change during either a rate charge or rate repartioning so that the interleaver delay is constant before and after the change. The transmitter pauses its transmission for a time approximately equal to the delay of the interleaver so that there are approximately no errors introduced at the receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.