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# UMG8900

Viewing 6 posts - 1 through 6 (of 6 total)
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benha
Guest

hello
thanks for all this website very useful for me!
when we want to invrease the number of subscribers related to the specific huawei UMG8900.we need the formula to calculate the hardware which we need to add it
anyone can give me that formuls
thank you

kumar
Guest

most important is one which helps in calculating the amount of traffic from number of calls and holding time is:

a = λh.
a=traffic intensity
λ=number of call connections
h=mean holding time
from this you will find the amount of traffic being catered by current network. If you think keeping in view the traffic that the resources are not sufficient for that amount of traffic then you can use:

P(b)=(a^n/n!)/summation i=0-n (a^i/i!)

Pb is the probability of blocking
n is the number of resources such as servers or circuits in a group
a = λh is the total amount of traffic offered in erlangs.

From all this info you may find the number of resources (E32 interface cards) for any traffic and blocking. All other equipment will be expanded with respect to the expansion of E32 rsources.

Hope this give sufficient info for the query. If anyone has more info or if im wrong at any point then then plz share.

thanks

Pix
Guest

Totally irrelevant question :

How on earth did you manage to write a “lambda” symbol here ???

bnha
Guest

but what about the boards calculation if you have an idea please i need it
thank you

kumar
Guest

PIX have you any idea to calculate the number of hardware boards to be added in MGW for certain amount of traffic.

Pix
Guest

No, sorry.
It’s probably an info you could get from the product description.

Viewing 6 posts - 1 through 6 (of 6 total)
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