98. Support for Media Quality IEs with AQM Solutions

Which Media Quality information elements (section "Information Element Table") are obtained during audio quality measurement differs between the various AQM solutions offered by TEMS Investigation. This chapter provides full detail in this regard. TEMS Automatic logfiles recorded by RTUs are also covered here.

Regarding device-related limitations, see section "Media Quality Information Elements".

Information Element
UM chapter reference	"AQM with ACU R2"	"AQM for CS Voice with ACU TerraTec"	"AQM for CS Voice with AQM Modules"	"AQM for CS Voice with AQM Modules"	"AQM for CS Voice with AQM Modules"	"AQM for VoIP"	"AQM for VoIP"	"AQM for VoIP"	–	–	–
AQM Algorithm DL	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
AQM Algorithm UL	CG	✔	✔	✔			✔		✔	✔	✔
AQM Audio Ch. Type DL	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
AQM Echo Attenuation			✔						✔
AQM Echo Correlation			✔
AQM Echo Delay			✔						✔
AQM Echo Power			✔
AQM Sentence DL	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
AQM Sentence UL	CG	✔	✔	✔			✔		✔	✔	✔
AQM Source DL	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
AQM Source UL	CG	✔	✔	✔			✔		✔	✔	✔
AQM Volume DL	✔	✔	✔	✔	✔				✔	✔	✔
AQM Volume UL	CG	✔	✔	✔					✔	✔	✔
Frequent AQM Score DL	✔		✔	✔	✔		R2		✔	✔	✔
Frequent AQM Score UL	CG		✔	✔					✔	✔	✔
PESQ Score DL	✔	✔	✔	✔	✔	✔	✔		✔	✔	✔
PESQ Score UL	CG	✔	✔	✔			✔		✔	✔	✔
POLQA NB Score DL	✔	✔				✔	✔	✔			✔
POLQA NB Score UL	CG	✔					✔				✔
POLQA SWB Score DL	✔	✔				✔	✔	✔			✔
POLQA SWB Score UL	CG	✔					✔				✔
Speech Interruption DL	✔							✔
Speech Path Delay*	✔		✔	✔				✔	✔	✔	✔

In the ACU R2 column, "CG" means that the information element is obtained only in the mobile-to-fixed configuration, where calls are made to a CallGenerator.

In the VoIP, ODM MTSI column, "R2" means that the information element is obtained only if the devices are connected to the PC via an ACU R2 box.

The TEMS Automatic ("TA") columns are to be interpreted as follows:

TA, CallGen., analog: TEMS Automatic, RTUs (Remote Test Units) engaging CallGenerator with analog calling card

TA, CallGen., digital: TEMS Automatic, RTUs engaging CallGenerator with digital calling card

TA, mobile to mobile: TEMS Automatic, RTUs engaging Mobile CallGenerator (MCG)