Dynamic network bandwidth allocation for multimedia applications with soft quality-of-service requirements
US6404738B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1998 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Jan 21, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5667
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A new concept of soft quality-of-service (soft-QoS) is developed that bridges the gap between the efficient provision of network-level QoS and the requirements of multimedia applications. Soft-QoS is defined by a satisfaction index (a number that rates users' perceptual quality) and a softness profile (a function that captures the robustness of multimedia applications to network congestion). Another aspect of this invention is a bandwidth allocation scheme for multimedia applications with soft-QoS requirements is presented. The implementation of the bandwidth allocation scheme on a network element realizes a soft-QoS controller. The controller uses the connections' softness profiles to compute a bandwidth allocation that maximizes the minimum satisfaction index of active connections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.