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GOS vs. TCH assignment failure? ASAYC!!!

  • This topic has 52 replies, 1 voice, and was last updated 14 years ago by homa.
Viewing 15 posts - 31 through 45 (of 53 total)
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  • 23rd September 2008 at 18:39 #51933
    pix
    Guest

    30% for the whole network ? it is very high. I think you should focus on checking TRX unavailability. Such high congestion certainly means that many hardware resources (TRX) are down.

    5th December 2008 at 05:54 #51934
    sarvesh_nsn
    Guest

    hi all,

    how to solve TCH Assignment failear, SDCCH Assignment failear.

    Thank yoy

    5th December 2008 at 13:50 #51935
    Antapé
    Guest

    sarvesh_nsn, which cause you have for TCH & SDCCH assign fail? radio, congestion or BSS cause?

    5th December 2008 at 14:00 #51936
    RH
    Guest

    For TCH:
    Check-
    Congestion
    Coverage
    HW
    Interference.

    For SDCCH:
    Check-
    T3101 value, Path balance issue on SDCCH carrier, HW issue …etc

    6th February 2009 at 10:51 #51937
    CHASTA
    Guest

    PLS Help me
    I’m working in GSM Provider.
    Special in to Core Network Performance..
    After i check, there’s so many reduce after CM request (call attempt) to MSC & assignment request from MSC.
    Its bout 10% reduce.
    Theres anybody already find the answer why.. ??

    Anyway, do u know which proccess is going first :
    1. Assignment request (TCH request) from A number MSC or
    2. Paging proccess in B Number MSC

    tkx alot yo..

    6th February 2009 at 18:40 #51938
    Pix
    Guest

    The paging of the called party is performed during the sDCCH phase of the calling party. So TCH is not yet allocated to the calling party.
    It would be allocated as soon as the called party’s MSC is replying to the “CALL SETUP” message by a “CALL PROCEEDING” message.

    7th February 2009 at 18:20 #51939
    Azzazi_RFoptimization_eng
    Guest

    Dear daoud,
    for 30% congestion on the network, 1-check the traffic per cell and the number of installed TRX’s
    2-check the usage of full rate and half rate per cell.

    8th February 2009 at 13:16 #51940
    Ayat
    Guest

    Hello,,,,,

    dears

    accoring to call attempts as conuter (time) how many call attempta i have ?? in the counter defination as a standrad defination we count number of call attempts according to IAM message or or CM meassage??

    10th February 2009 at 22:12 #51941
    eslam Kamal
    Guest

    in DT using Tems:
    in call setup can’t esstiblish call due to assignement failure, why Tems don’t calculate this retray in Blocked call

    11th March 2009 at 11:57 #51942
    MF
    Guest

    HI ALL
    BUT H0W T0 S0LVE HIGH PCFAIL(PRECENTAGE 0F C0NTR0L CHANNEL FAILURE),WE HAVE 25% PCFAIL IN 0UR NETW0RK, PLEASE C00PERATE US

    12th March 2009 at 12:09 #51943
    Mouf
    Guest

    hi!

    Which cause of failure? cong?

    14th March 2009 at 09:51 #51944
    nitin
    Guest

    what is GOS means

    15th March 2009 at 13:32 #51945
    Ayat
    Guest

    Hello , All

    GOS

    Grade of service , or blocking rate

    in table ERLANG B we have arealtion between traffic , Number of channel and Blocking rate(%).

    21st April 2009 at 08:45 #51946
    arsn
    Guest

    what is the negative effect of T3101

    9th June 2009 at 09:52 #51947
    oga
    Guest

    Hi

    Can any one help me to solve TCH assign preparation failure BSS in Alcatel BTS?

    thanks in advanced!!!

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