Congestion control in data networks
US7394762B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2004 |
| Grant date | Jul 1, 2008 |
| Priority date | — |
| Expiry date | Aug 3, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed are methods of congestion control in transmission of data in packets over a network link using a transport layer protocol, and transmission methods and protocol systems to implement such methods. The number of unacknowledged packets in transit is less than or equal to a congestion window value cwndi which can be varied according to an additive-increase multiplicative-decrease (AIMD) law having an increase parameter αi. In embodiments, αi can be increased during each congestion epoch at a time after the start of a congestion epoch, or based on time since the start of a congestion epoch. In embodiments, a multiplicative decrease parameter βi can be set based on a characteristic(s) of a data flow(s) carried over the network link. For example, the value of βi may be set as the value of the round-trip time of data traversing the link or based on the minimum of the mean inter-packet time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.