Packet-based adaptive forward error correction
US10225045B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2017 |
| Grant date | Mar 5, 2019 |
| Priority date | — |
| Expiry date | Feb 8, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/188
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system, method, and storage medium provide dynamic, packet-based adaptive forward error correction over a lossy bidirectional data communication medium that couples a transmitting device to a receiving device. The transmitting device repeatedly transmits encoded data packets formed by applying, to unencoded data, a forward error correction (FEC) algorithm having a level N that indicates a number of correctable errors. The receiving device attempts to decode the encoded data packets using the FEC algorithm, requesting retransmission of a packet if there are too many errors to correct. The transmitting device decreases the level N when it does not receive such a request within a given duration. By contrast, the transmitting device increases the level N when it receives a sequence of such requests having a threshold length, each request being received less than the given duration after the previous request.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.