System and method for link rate negotiation
US7849209B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2008 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Aug 18, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/1446
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method are provided for negotiating a link data rate in a communication system using a plurality of data rates. In a system including a first device network-connected to a second device, auto-negotiation (AN) messages are mutually transmitted. The AN messages indicate rate information such as preferred data rate capabilities, if the device has a dual-rate capability, or a single data rate capabilities. If the AN messages are mutually transmitted, a negotiated link data rate is established. However, if one of the devices cannot send AN messages, the other device times-out, and a link data rate is established at the data rate transmitted by the device that is not AN-capable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.