MOS TESTING Tutorial(Tems)

[MRO3]

is there any document that explain mos testing with tems equipment..

[RF engineer]

is there any document that explain mos testing with tems equipment..

you can use this table to see your MOS through SQI
SQI MOS SQI MOS SQI MOS SQI MOS
-20 1.01 -5 1.2 10 2.63 25 4.11
-19 1.02 -4 1.24 11 2.78 26 4.15
-18 1.02 -3 1.28 12 2.93 27 4.17
-17 1.03 -2 1.34 13 3.07 28 4.2
-16 1.03 -1 1.39 14 3.21 29 4.22
-15 1.04 0 1.46 15 3.34 30 4.24
-14 1.04 1 1.54 16 3.46 31 4.25
-13 1.05 2 1.62 17 3.57 32 4.27
-12 1.06 3 1.72 18 3.67 33 4.28
-11 1.07 4 1.82 19 3.76 34 4.29
-10 1.09 5 1.94 20 3.84 35 4.29
-9 1.1 6 2.06 21 3.91 36 4.3
-8 1.12 7 2.2 22 3.97 37 4.3
-7 1.15 8 2.34 23 4.02 38 4.31
-6 1.17 9 2.48 24 4.07
BR

[RF engineer]

is there any document that explain mos testing with tems equipment..

here is the table

[sonerss]

Hi

SQI values get real MOS values? actually SQI same as MOS?

Thanks


here is the table

[RF engineer]

Hi

SQI values get real MOS values? actually SQI same as MOS?

Thanks
dear
I did not get your question exactly but what if you mean SQI and MOS have the same meaning .
BR

[ivankokorin]

Tems testing PESQ (using PESQ module)

PESQ Score ~ MOS

SQI is not based on comparing the voice recordings.

[gc_sw]

what is MOS? something like amos/moshell??

[MRO3]

i think there is a device dedicated to MOS testing that its costly ...
and u need to plug hand sets to it

i need that tutorial not calculation way
tnx

[fotondiamond]

As I know SQI only measure Downlink Quality not Uplink.

MOS measure both Uplink & Downloink.

BR//
Foton

[yaltaf1]

is there any document that explain mos testing with tems equipment..

Hello All,
This will help the lot of you.. Contains detailed explanation of PESQ(MOS) algorithm as used in TEMS products.
Regards

[sonerss]

I agree to fotondiamond. SQI depents on DL Quality. But MOS is depents on DL/UL. And MOS values gives us Radio, Transmission and Core Network layer performance. Maybe Radio Layer performance is good but Transmission Layer performance is bad so MOS values get bad...


As I know SQI only measure Downlink Quality not Uplink.

MOS measure both Uplink & Downloink.

BR//
Foton

[striker711]

As I know SQI only measure Downlink Quality not Uplink.

MOS measure both Uplink & Downloink.

BR//
Foton

yes this is correct.

better we use MOS

[binladen]

To test MOS we often use Nemo equipment to drive test.

[sonerss]

Yep
We take MOS values by NEMO & SwissQual too

[MRO3]

what are the equipment names and is there any manual for them?

[Alphab]

what are the equipment names and is there any manual for them?

Find below doc about MOS evaluation by SwissQual.

Their Video Quality algorithm is also approved and referred for
testing Video Tests, Streaming Tests etc as well.

No pass ..

But pls add rep and thanks if you like ...

[Alphab]

Find below doc about MOS evaluation by SwissQual.

Their Video Quality algorithm is also approved and referred for
testing Video Tests, Streaming Tests etc as well.

No pass ..

But pls add rep and thanks if you like ...

Another one for video monitoring VQUAD ...

add rep and thanks as well if you like ..

no pass ..

[sonerss]

Mean Opinion Score (MOS)

Mean Opinion Score (MOS) scale is frequently used. The MOS scale is described in ITU recommendation P.800. In a MOS test the listener grades each speech sample (normally five to eight seconds in length) by assigning it to one of the following categories:

MOS Meaning
5 Excellent
4 Good
3 Fair
2 Poor
1 Bad



what is MOS? something like amos/moshell??

[coursekec]

thanks for the awesome explanations on MOS ...this forum is great...

[mrmrizvi1981]

Please send me any document related to SwissQual.



Another one for video monitoring VQUAD ...

add rep and thanks as well if you like ..

no pass ..

[cdmahn]

I think what the author mean is PESQ based MOS.

Most of drive test and benchmarking tools support PESQ MOS measurements: Ascom Qvoice/Symphony, TEMS Investigation/Automatic, Swissqual, Couei XCAL, Nemo Outdoor, ... even some Chinese tools like DingLi Panorama, Rising, ... The best tools should be Ascom Qvoice/Symphony. Nemo Outdoor are widely used in by their prices, but there some problem with that tool that MOS score should be different if you use different handsets. TEMS is also a good tools for PESQ MOS measurements.

[ritgail]

Who provide the voice samples...operator???:rolleyes:

[knack]

Each tools comes with its own reference samples. I know that TEMS Investigation has them by default.


Who provide the voice samples...operator???:rolleyes:

[Ruslik]

Hello all.
Can you tell me, what value of DL & UL MOS got you in measure of real 2G networks.
We using Nemo with AQM modules and MOS server to measure MOS. Usually UL MOS is approximately 3.2-3.3 and DL MOS - 3.8. Is this difference normal?

[knack]

On 2G, PESQ is between 3.6-3.8 for full rate or AMR and 3.4-3.6 for harf rate. In TEMS i saw similar, but not so big difference. On DL, the sample is coming from the server to MS, so you have good radio conditions. On UL, MS antena can't as good as BTS antenna so you will get a lower value. A big difference can be seen when MS is far away from the antenna. For TEMS PESQ, the difference in less than 0.4 between DL and UL.

[bayub]

I need TEMS tutorial and how to read the parameter.
if you have it, may you send to my email, bayubisworo@gmail.com

Thanks

[knack]

Here the document: http://www.4shared.com/rar/20zcfOSS/aqm.html


I need TEMS tutorial and how to read the parameter.
if you have it, may you send to my email, bayubisworo@gmail.com

Thanks

[Ruslik]

On 2G, PESQ is between 3.6-3.8 for full rate or AMR and 3.4-3.6 for harf rate. In TEMS i saw similar, but not so big difference. On DL, the sample is coming from the server to MS, so you have good radio conditions. On UL, MS antena can't as good as BTS antenna so you will get a lower value. A big difference can be seen when MS is far away from the antenna. For TEMS PESQ, the difference in less than 0.4 between DL and UL.

Thanks, knack. In my case difference is greater, than you said. May be it is problem in low UL Siglevel.

[haronelking]

tHANKS FOR
MOS TESTING Tutorial