tch blocking and tch congestion

This topic has 98 replies, 1 voice, and was last updated 14 years, 7 months ago by anand.

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8th May 2009 at 07:34 #52069

ulva
Guest

Thank you very much dear

^_^

8th May 2009 at 08:27 #52070

Gerald
Guest

Our subscriber base is reducing everyday but our traffic volume is still the same,why?

From the formula giving by Ayat, our traffic volume will be approximately 77million Kbyte.

Please, is there any help or suggestion towards this problem

15th May 2009 at 06:01 #52071

uLVa
Guest

can i ask again ?

for paramater performance..
can explain one by one definition ?
coz i dont understand
n i not reference

tx b4

17th May 2009 at 07:40 #52072

Ayat
Guest

Dear, ulva

TCH call Blocking , it present how many subscriber asks for TCH channel and network reply with no avaliable resource.

so it present how many subscriber request TCH channel to reject this request

TCH call drop

after subscriber get TCH and start converstion

during it the call is dropped for some reasons not related to the subscribers .

also for SDCCH call drop rate the same

but SDCCH not for call,it is signaling channel

also SDCCH blocking rate(%)

the same for TCH blocking

i hope it is clear

may be you can expalin what you need with more calarifaction

17th May 2009 at 12:44 #52073

kashif
Guest

Hello,
Can anbody tell me what is KPI and what are the KPI parameters?

18th May 2009 at 04:47 #52074

nitin
Guest

hi kashif,

Kpi means ‘key performance index’

these are used to analyse and optimise the performance of mobile network.the folloving kpi parameters are used.
1.SDCCH Blocking %
2.TCH Blocking or congestion
3.CSSR%
4.SDCCH DROP
5.TCH drops
6.Cell/Traffic Utilizatin and many more their values are depend upon or varies acording to mobile operators need.AS i Know………..

25th June 2009 at 18:42 #52075

nitin
Guest

hi
can any 1 help me in telling 10 reasons for TCH DROP and SDCCH drop

26th June 2009 at 05:42 #52076

nitin
Guest

Hi,

The main reason behind the TCH And Sdcch drop is congestion. if there is no resource is available in n/w due to high traffic.

hardware fault also can happen to these type of drops

29th July 2009 at 04:25 #52077

hussain
Guest

hello

what does No. of SDCCH Seizure Attempts
means

29th July 2009 at 07:23 #52078

SS Brar
Guest

sddh drop reasons
1. Excessive TA,overshooted cell
2. Interferance CO Bcch
3. If no Tch avlable Time of HO or time of orignatin of call.
4. Wrong Defination( Causes HO Failoure)
5. Bad RX Level
6. ICM Band Interference
7. Site physicaly not optimized( Orientation, tilt, Having swap in rf cables )
9. Hardware failure.
10.Transmission Link Fluctution or failure.

20th August 2009 at 18:16 #52079

dilip
Guest

can anybody tell me d difference b/w SDCCH congestion & SDCCH Blocking…..???
plz…..

20th August 2009 at 20:01 #52080

Fresh Opt
Guest

Hi Dilip,
there is no difference: congestion=blocking.
Regards,

24th August 2009 at 17:08 #52081

Vanderley
Guest

Hi,

some use this:
Congestion is the time when you do not have free channels.
Blocking is the number of rejected tch due to congestion (no free channels)
Both they give yo the picture for example after a concert for 6 minutes you have congestion (10%) but the blocking could be different e.g. 50%.

25th August 2009 at 09:42 #52082

Gerald Thomas
Guest

how can a low traffic site have TCH or SDCCH congestion?

25th August 2009 at 09:46 #52083

Bijoy
Guest

Congestion means no channels are free.
blocking means when no channels are free and a call is made,it doesn’t gets through.

unit of congestion is time 7 unit og blocking is count or %
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