TDC - 7th February 2018 (07:23 GMT)
|How to change Erlang to MBPS?|
Suppose i have 1000 Erlang in bussy hours, and my max number of concurent call is 1500, so how could found the utilization based on 1500 concurrent call usage?
Pan - 3rd January 2010 (19:18 GMT)
Happy New Year! :)
pix - 2nd January 2010 (21:38 GMT)
50.000 erl = # calls * (50s / 3600s)
1/ # calls = 3.6 millions
2/ you are 100% right
3/ i'm embarassed :)
was i drunk when i replied to this message ?
thanks for correcting me !
Cheers & happy new year,
Pan - 2nd January 2010 (19:08 GMT)
|Hello, guys! :)|
Sorry, Pix, but 50 000 Erlangs is enough great value. But 1000 calls per hour is enough small value.
Load intensity=50 000 erl represents the total holding time (in sec)= (50 000*3600)= 180000000.
BHCA=(180000000/50)=3600000 calls, i.e 1,8 calls per subscriber in busy hour.
Pix - 3rd November 2009 (15:44 GMT)
Yes, 25mErl/sub is a typical figure
4/4/4 : 1 BTS with 3 sectors, and 4 TRX per sector.
Sector 1 = 4 TRX
Sector 2 = 4 TRX
Sector 3 = 4 TRX
... 4/4/4 ... :-)
kdriver - 3rd November 2009 (15:38 GMT)
|Thanks Pix. That gives me the answers I was looking for.|
Is 25mErl/sub an industry standard figure?
What do you mean by 4/4/4 configuration for the BTS?
Pix - 27th October 2009 (21:19 GMT)
the number of calls is not really relevant, what matters more is the volume of traffic (erlangs)
25mErl / subscriber @ BH x 2 millions = 50 000 erlangs
assuming average call duration of 50 seconds (rather realistic )
50.000 erl / 50 = 1.000 calls
So 2 millions subsribers (typical subscribers) will generate about 1000 calls of 50 seconds, at busy hour, during one hour.
To handle 50k Erlangs, you need about 600 BTS with 4/4/4 configuration :)
kdriver - 27th October 2009 (20:50 GMT)
Can anyone give a rough figure for expected busy hour concurrent calls given a subscriber base. ( lets say 2 million? )
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