System and method for resource optimized integrated forward error correction in a DMT communication system
US6480976B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2000 |
| Grant date | Nov 12, 2002 |
| Priority date | — |
| Expiry date | Mar 13, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/007
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A resource optimized interleaving/deinterleaving system comprising a Reed-Solomon encoder, a Reed-Solomon decoder, a state machine, and a memory is disclosed. Reed-Solomon encoded fastpath data is stored in memory. A stream of interleaved data with predefined parameters S, the number of DMT symbols per each Reed-Solomon codeword, D, the interleaving depth, and N, the block length is written into system memory at an adaptable rate determined by the Reed-Solomon encoder. The previously stored Reed-Solomon encoded fastpath data is automatically reassembled and buffered with the interleaved data to form appropriate DMT transmission symbols. The DMT transmission symbols are then read out of the system memory at a rate determined by the next processing function, i.e., tone ordering. A method of using one Reed-Solomon encoder/decoder with the integrated interleaving/deinterleaving system to support dual single latency DMT systems is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.