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# Call minutes between drop

Viewing 7 posts - 1 through 7 (of 7 total)
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NK
Guest

Hi! all,

Tahnk you in advance. Does anyone know how to calculate “call Minutes between drop” in siemens netwrok? Also does any one know how to calculate “Total Attempts of HO per 1 TCH Assignment”?

Regards,
NK

Tomar
Guest

Hi NK,
This indicator will give you mean time between TCH drop (in second).
MTBTCHDrop= TCHTraffic (Full plus Half) * Granularity *60seconds/ TCHDrop
BR
Tomar

NK
Guest

Hi! Tomar,

Thank you for your suggestion. But I donot understand the purpose of multiplying TCHTraffic(Full plus half)n in order to calculate MTBTCHDROP. Would you clarify it?

Regards,
Nirendra KC

Tomar
Guest

Hi NK,
In other words, if you take traffic (1 Erl – is 3600 second) and this amount of traffic you divide number of drops (4 drops on the one cell), than the equation will just the average time between the drop occurs (3600/4=900). And “call minutes between drop” is just 15 minutes.
I hope that now it is much clearer.
BR
Tomar

pix
Guest

The meaning of this indicator is rather complicated to understand, because it has no real physical meaning ! But in a simpler way, it gives a ratio traffic / call drop rate. The lower is the ratio, the more critical is the cell.

If it goes below 40s, then it indicates a probable hardware failure : every 40s of “cumulated calls”, there is a call drop.

Ishraq khan
Guest

This is similar to drop call rate,but can be a more reliable indicator of performance on cells

Swapnil S Kotia
Guest

What is PRP in Telecordia IN system
Also share the fullform of PRP.

Viewing 7 posts - 1 through 7 (of 7 total)
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