Determining mobile video quality of experience and impact of video transcoding
US8441955B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2011 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Nov 6, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/6473
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Video data packets transmitted through a wireless network are captured by a network monitoring system. Video data sessions are detected from the video data packets. Key parameters are identified within the video data packets, such as video bit rate, resent or failed video packets, and video session duration. A Quality of Experience (QoE) is determined for some or all users associated with the video sessions based upon the key parameters. A header extension is added to the video data packets by a transcoding system. The header extension includes data associated with original and transcoded video data packets. The network monitoring system monitors the header extension and evaluates the effect of video transcoding upon the overall QoE for users. The monitoring system provides feedback to a transcoding policy engine based upon the effect of transcoding upon QoE.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.