发明名称 |
Method of and system for measuring quality of audio and video bit stream transmissions over a transmission chain |
摘要 |
The invention provides a method of and a system for measuring quality of audio and video stream transmissions over a transmission chain. The method comprises the steps of providing one or more measurement detectors along the transmission chain; detecting with the one or more measurement detectors the loss of packets at the one or more measurement point(s); determining the unique identifier for each detected lost packet; sending the list of lost packet identifiers to a central monitoring system; constructing, at the central monitoring system, from a stored error free stream and on the basis of the received lost packet identifiers, a simulated stream; and evaluating the simulated stream for deriving a quality score for the transmission along the transmission chain. An alternative embodiment of the invention uses a parametric description or reduced version of the stream stored in the central monitoring system, that is corrected or modified using the information received from the measurement detectors. |
申请公布号 |
EP2432161(B1) |
申请公布日期 |
2015.09.16 |
申请号 |
EP20100177161 |
申请日期 |
2010.09.16 |
申请人 |
DEUTSCHE TELEKOM AG |
发明人 |
FEITEN, BERNHARD;ARGYROPOULOS, SAVVAS;GARCIA, MARIE-NEIGE;LEDER, NILS;LIST, PETER;RAAKE, ALEXANDER;WÜSTENHAGEN, ULF |
分类号 |
H04L12/26 |
主分类号 |
H04L12/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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