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what is GOS means
How can i calculate my SDCCH accessibility. Please if i have a low SDCCH accessiblity rate will it affect my call drop rate
Please can anyone tell the key parameters to consider in calculating the trunk usage for Ericcson BSC
hello
what is GOS means?
Gos grade of service (blocking)in radio part we design the network forcertian Gos , for example Gos in 2%, by erlang table B, there is a relation between number of channel , blocking rate ,and traffic.
so according to number of channel and Gos we can know the desgin traffic.
hello all,
can anybody tell me how can we define possible trx configuration for a specific alloted frequency spectrum?
eg:if a service provider is allocated with 4.4mhz frequency band,then what is the possible trx config. for this.can anybody tell me the meaning of the alarm ” mean holding time below thresold” in Nokia system?
Hi all,
in Huawei BSC32 there is what’s called TCH congestion Rate (TCH Overflow) (%) i didn’t find the formula behind it but i found the one for SDCCH congestion Rate (SDCCH overflow) (%), which is
(Attempted SDCCH seizures meeting an sdcch blocked state/attempted sdcch seizures all), so it looks similar.
So i get for tch cogestion overflow for one cell 40%
and tch congestion 3% so why this big difference do you think.Hello,
Dear , Majid becuase as you know SDCCH is a control channel the user and network use this channl for many thing
location upadte , IMSI deatach,
recall estiblshed ,, sms ,,so try to check the defination of this KPI,attempted sdcch seizures allwhich services are include in this counter , you have to know the traffic from whaere
also check your resourcse .
SDCCH SDCCH SDCCH SDCCH
ASSIGN SEIZURE ASSIGN ACCESS
SUCCESS ATTEMPT FAILED1470 3375 1905 43.56%
261 486 225 53.70%
768 1302 534 58.99%
163 255 92 63.92%Please these are sites with worst SDCCH accessibility. Can someone help me with reason for such accessibility.
Hello all,
can anybody explain me the MAIO plan with a suitable eg.???????
haii…
can i ask u??formula for
1 TCH Call Blocked
2 TCH Assign Success Rate
3 Call Success Rate
4 Drop Call Rate
5 SDCCH Call Blocked
6 SDCCH Assign Success Rate
$7 Handover Success Rate
8 Handover Failure Rateplease help me,,
coz i need that for my thesis1 TCH Call Blocked
2 TCH Assign Success Rate
3 Call Success Rate
4 Drop Call Rate
5 SDCCH Call Blocked
6 SDCCH Assign Success Rate
$7 Handover Success Rate
8 Handover Failure RateThese all formula varies vendor to vendor
Hello uLVa
these formulas depends on vendor
TCH Call Blocked =
some vendor call this KPI TCH congestion rate (%) = TCH overflow*100/TCH attempts
2 TCH Assign Success Rate
= TCH assign request /tch attempts
3 Call Success Rate
100-TCH assign failure0r TCH seizure succ attepts/TCH attempts
4 Drop Call Rate
Most of vendors have two call drop
SDCCH and TCH
TCH call drop rate (%)
TCH call drop /TCH sizure attemotsalso for SDCCH
5 SDCCH Call Blocked
SDCCH congestion6 SDCCH Assign Success Rate
$7 Handover Success Rate
handover request/handover attepts
depends on Handover type8 Handover Failure Rate
by small search in google you will get alot paper about this topic
good luck
Hello all,
Can anybody tel me how can we convert erlang into kbps???is there any formula….
hello
check this formula
Traffic Volume for CS Domain_AMR(Kbyte)= Traffic Volume for CS Domain_AMR(Erl)×12.2×3600/8
it deponds on the traffic type
if we work with video trafic we will take in our consideration 64Kbps instead of 12.2
i am not sure .
but we create these formula by logic
thanks
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