Technique for performing analysis of an rtp flow

A computing unit for performing segment-wise analysis of a Real-Time Transport Protocol, RTP, flow carried from a first User Equipment, UE, to a second UE via a mobile network, the RTP flow being monitored by a plurality of probes in the mobile network, wherein each of a first probe of the plurality of probes and a second probe of the plurality of probes is configured to calculate at least one performance indicator indicative of a performance associated with the RTP flow observed between the first UE and the respective probe, the computing unit comprising at least one processor and at least one memory, the at least one memory containing instructions executable by the at least one processor such that the computing unit is configured to:

• derive at least one segment performance indicator for a segment of the RTP flow between the first probe and the second probe of the segment by deducting the at least one performance indicator calculated by the first probe from at least one corresponding performance indicator associated with the second probe,
• derive at least one segment performance indicator for a segment of the RTP flow between the first probe and the second UE of the segment by deducting the at least one performance indicator calculated by the first probe from at least one corresponding performance indicator associated with the second UE,
• derive at least one segment performance indicator for a segment of the RTP flow between the second probe and the second UE of the segment by deducting the at least one performance indicator calculated by the second probe from the at least one corresponding performance indicator associated with the second UE, and
• the at least one corresponding performance indicator associated with the second UE corresponds to at least one performance indicator included in an RTP Control Protocol, RTCP, report of the second UE.

A mobile network comprising:

• a computing unit for performing segment-wise analysis of a Real-Time Transport Protocol, RTP, flow carried from a first User Equipment, UE, to a second UE via a mobile network, the RTP flow being monitored by a plurality of probes in the mobile network, wherein each of a first probe of the plurality of probes and a second probe of the plurality of probes is configured to calculate at least one performance indicator indicative of a performance associated with the RTP flow observed between the first UE and the respective probe, the computing unit comprising at least one processor and at least one memory, the at least one memory containing instructions executable by the at least one processor such that the computing unit is configured to:
• derive at least one segment performance indicator for a segment of the RTP flow between the first probe and the second probe of the segment by deducting the at least one performance indicator calculated by the first probe from at least one corresponding performance indicator associated with the second probe,
• derive at least one segment performance indicator for a segment of the RTP flow between the first probe and the second UE of the segment by deducting the at least one performance indicator calculated by the first probe from at least one corresponding performance indicator associated with the second UE,
• derive at least one segment performance indicator for a segment of the RTP flow between the second probe and the second UE of the segment by deducting the at least one performance indicator calculated by the second probe from the at least one corresponding performance indicator associated with the second UE, and
• the at least one corresponding performance indicator associated with the second UE corresponds to at least one performance indicator included in an RTP Control Protocol, RTCP, report of the second UE.