Congestion induced video scaling
US8854958B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2012 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | Apr 5, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/22
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Access nodes and methods adjust a bit rate of a data stream in a communication network. The access nodes and methods have a packet inspection unit configured to inspect one or more of the data packets to determine that the data stream includes video data. A congestion unit is coupled to the packet inspection unit and is configured to determine a level of congestion in the communication network, the level of congestion associated with a capacity of the wireless channel, the level of congestion capable of varying over time, and the capacity of the wireless channel capable of varying with the level of congestion. A video scaling unit is configured to adjust the bit rate of the data stream responsive to the packet inspection unit and the congestion unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.