Method and apparatus for discarding packets in a data network having automatic repeat request
US6424625B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1998 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Oct 28, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/1841
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques are provided for use with automatic repeat request (ARQ) schemes in a data network to minimize a bandwidth used by a receiver and a transmitter in the network to transfer data packets, by discarding outdated packets that have not yet been successfully transferred. In accordance with an embodiment of the invention, a bit is set in the ARQ packet header to force the receiver to accept packets subsequent to one or more erroneous or unreceived packets that have been discarded and not resent. In accordance with another embodiment of the invention, after data packets have been discarded, sequence numbers are reassigned to the non-discarded data packets that are yet to be sent to the receiver, so that a transmitted stream of the non-discarded packets will have consecutive sequence numbers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.