ARQ for point to point links
US7373579B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2004 |
| Grant date | May 13, 2008 |
| Priority date | — |
| Expiry date | Apr 4, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An automatic retransmission system offering good latency and overhead characteristics combined with programmable tradeoffs among overhead, latency, and error performance. ARQ (Automatic Repeat reQuest) blocks present at both ends of a link coordinate to automatically attempt to re-send data if that data was not received properly the first time it was sent. Re-transmission from the transmitter (transmitter) is requested by the receiver (Receiver) via a highly reliable “Repeat Request” (RR) mechanism. This RR scheme carries sufficient information back to the transmitter for it to determine which previous transmissions need to be re-sent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.