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peterholl2004Guest
can you help me!
I would like to calculate total number sub in local exchange from BHCA.
thanksmohsin ismailGuesthi peter
this is my proposal of calculation:
BHCA= A*3600/B
A=C/D
D=C/Dwhere
A= traffic in erlang
C= traffic in erlang per sub
D= total number of sub.
B= Mean holding time in secs.Here you must know:
B,C,BHCA, then you get the A. From A you will get D.good luck.
rgds
mohsin IsmailMohsin IsmailGuestcorrections:
A=C*D
xxxGuestHi Ismail
Sorry, but too many mistake in your formular:
D=C/D ?????????????????
Pls check carefully before post it.
VijayGuestHi Moshin,
I have a GSM Network with 300 K Subscribers.MHT is 100 Seconds.
How can I calculate BHCA ?
Rgds
Mohsin IsmailGuesthi xxx
please see in my corrections..
sorry for my mistake..
Mohsin IsmailGuestHi Vijay
you need Traffic in erlang/sub value. From that put in A=C*D, then compute in BHCA formula.
good luck
xxxGuestHi Ismail,
Your correction still has the error. What is the formular D=C/D ?????????????????
Pls correct it
Mohsin IsmailGuestXXX
forget about D=C/D, the correct one is A=C*D.
MisaGuestHi Vijay
Here is the calculation:
BHCA = BHT * 3600 / MHT
where
BHT = Busy Hour Traffic in Erlang
MHT = Mean Holding Time in secondBHT = NSUB * C
where
NSUB = number of subscribers
C = traffic in Erlang per subscriber> BHCA = NSUB * C * 3600 / MHT
Normally C = 0.025 Erl/sub
> BHCA = 300000*0.025*3600/100
> BHCA = 270000Misa
Hi MISAGuestFor this BHCA what are the routes we have to consider ?
Let me Put my list of routes.
ALL EXTERNAL PSTN
ALL INTER MSC LINKS
ALL BSC ROUTES
VMS ROUTES
SCP ANNOUNCEMENT ROUTE
VAS SERVICE ROUTERgds
Scot
ScotGuestHi MISA,
For Traffic Calculations and Engineering which routes we have to Montior ?
BSC Incoming / Outgoing.
PSTN Incoming /Outgoing.
VMS Outgoing.
What else ?
Rgds

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