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tch blocking and tch congestion

Viewing 15 posts - 76 through 90 (of 99 total)
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  • #52099 Reply
    Bijoy
    Guest

    Definitely not

    #52100 Reply
    KRISH
    Guest

    hi,

    U MEAN WILL NOT IMPROVE SD BLOCKING.

    #52101 Reply
    Gerald Thomas
    Guest

    Please can someone help me:

    1. i don’t where i can find the RACH time

    2. where i can the lapd from 16 to 32k

    my equipment is ZTE

    #52102 Reply
    Gerald Thomas
    Guest

    Also, the site has three sectors but only sector_2 is having low Total Number of SDCCH Attempts and extremely low Number of Successful SDCCH Assignment and these affect the Accessibility to SDCCH.

    Please can someone help!

    #52103 Reply
    Bijoy
    Guest

    Hi Krish.
    SDCCH Blocking due to LOC update cannot be minimised by LAPD multiplexing change

    #52104 Reply
    gerald thomas
    Guest

    hi Bijoy,

    In ZTE, we have Minimal Signal Strenght of MS Uplink RACH Access (RachMin, -dm)and RACH Load Indication Threshold, there values are 125 and 60 respectively.

    what is your suggestion?

    #52105 Reply
    Bijoy
    Guest

    Hi Gerald
    Minimal Signal Strenght of MS Uplink RACH Access should be around -109 dBm

    RACH Load Indication Threshold should be 80%

    #52106 Reply
    krish
    Guest

    hi bijoy

    But here i am getting 2 % in sd blocking imrovement after lapd from 32 to 64 which is due to lac update.

    If ur point of view its not possible can u explain why its not possible in lac update?

    #52107 Reply
    Bijoy
    Guest

    Hi Krish
    2% improvement is not a conclusive improvement.
    since SDCCH Holding Time during LOC update is high,increasing LAPd from 16K to 32K will not help much.
    If u really want to bring down the SDCCH Blocking due to LOC update,change its LAC,u will observe very good results

    #52108 Reply
    gerald thomas
    Guest

    hi Bijoy,

    i will make the changes and observed

    #52109 Reply
    gerald thomas
    Guest

    Hi Bijoy,

    we have made the changes but the situation is still the same.

    so do you have anymore suggestion?

    #52110 Reply
    Bijoy
    Guest

    If your problem was due to LOC update,changing the LAC of that cell as that of its neighboring cells should have helped.Carrier addition & SDCCH addition is the last resort then.
    U can also increase the T3212 timer to 4-6 hours(if not already done).but this might lead to poor PSR

    #52111 Reply
    Seles83
    Guest

    What are causes of high TCH Blocking on same cells. How do i cap the trend…my vendor is ericsson.

    #52112 Reply
    jairohila
    Guest

    i m working in bsnl project plz help me for improve tch drop.there is tch drop on site around 7 to 14%.plz suggest me wht i do 2 improve it.

    thanx

    #52113 Reply
    krish
    Guest

    hi seles,

    is there dual band?

Viewing 15 posts - 76 through 90 (of 99 total)
Reply To: tch blocking and tch congestion
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