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Increase in Interferance HOs with DTX

Viewing 15 posts - 61 through 75 (of 77 total)
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  • 19th June 2011 at 17:56 #59918
    Suzane
    Guest

    Hi Pix,

    Power values are in dB

    19th June 2011 at 19:46 #59919
    pix
    Guest

    hi,

    so… when i read “MAX power level of MS=5”
    it means
    MAX power level of MS=5dBm ???

    23rd June 2011 at 15:08 #59920
    Suzane
    Guest

    Sorry pix in replying late & confusing you, I went sick…Back now

    When we say
    MAX power level of MS=5 it means 33dbm & MIN power level of MS=16 it means 11dbm

    23rd June 2011 at 17:54 #59921
    pix
    Guest

    suzanne,

    i’m glad you’re fine now 🙂
    well, my only concern is that i can’t read the numerical values you’ve written. You must translate them in dB or dBm, please 🙂

    I understand the translation is not complicated, but i just can’t do it…

    thanks 🙂

    pix

    25th June 2011 at 18:19 #59922
    Suzane
    Guest

    Hey Pix !! Hope you are doing fine..

    Well, Let me describe it properly:

    Power ref table is as under:

    value(0-2)=39dbm
    value 3 = 37dbm
    value 4 = 35dbm
    value 5 = 33dbm
    ………….
    value 16 = 11dbm
    value 17 = 9dbm
    value 18= 7dbm
    value(19-31) = 5dbm.

    26th June 2011 at 13:11 #59923
    pix
    Guest

    hi,

    and what about Increase uplink level=25 ?

    I begin to think that you just don’t want to convert your previous post, where you list all your parameters, into understandable units.

    Please convert each parameter…

    Help me help you… :))

    27th June 2011 at 16:01 #59924
    Suzane
    Guest

    Dear Pix, Really very sorry to create such trouble to you…

    Here i go with complete description :

    1)MAX power level of MS=5
    2)MIN power level of MS=16
    Parameter 1 & 2 are mapped as Power ref table as under:
    value(0-2)=39dbm
    value 3 = 37dbm
    value 4 = 35dbm
    value 5 = 33dbm
    ………….
    value 16 = 11dbm
    value 17 = 9dbm
    value 18= 7dbm
    value(19-31) = 5dbm.

    3) MIN power level of BS=10–>(where 0:Pn,1: Pn-2 dB;15:Pn-30 dB & Pn=The maximum power level of BTS is Pn)

    4)Increase uplink level=25–> (Ths 0-63 mapped with -110 to-47)dBm i.e 0=-110 & 63= -47dbm.
    here 25 = -85dBm.

    5)Decrease uplink level=35–>
    (Ths 0-63 mapped with -110 to-47)dBm i.e 0=-110 & 63= -47dbm.
    here 35 = -75dBm.

    6)Increase uplink quality=4
    7)Decrease uplink quality=1

    Parameter 6&7 are based on band (0to7)
    8)Increase downlink level=20–>
    (Ths 0-63 mapped with -110 to-47)dBm i.e 0=-110 & 63= -47dbm.
    here 20 = -90dBm.

    9)Decrease downlink level=35
    (Ths 0-63 mapped with -110 to-47)dBm i.e 0=-110 & 63= -47dbm.
    here 35 = -75dBm.

    10)Increase downlink quality=4
    11)Decrease downlink quality=1
    Parameter 10&11 are based on band (0to7)
    where P/N for all UL/DL is 2/3

    Also,Handover MarginRxQual is =6dB

    27th June 2011 at 18:03 #59925
    pix
    Guest

    Hi Suzie,

    Ok, so you can try the following values (keep everything else like it is)

    Min power level of MS=19
    Increase uplink level=15
    Decrease uplink level=25

    that should help reducing the UL Interference. Regarding the DL, your settings are already quite good. You could try this :

    Decrease downlink level=30

    But I can’t be sure that it will enhance your network.

    Regards
    Pix

    4th July 2011 at 15:40 #59926
    suzane
    Guest

    Hey Pix…. I am back, How r u doing dear

    Min power level of MS=19 i.e 5dBm–> Will it not increase Call drop or degrade voice quality,

    Increase uplink level=15
    Decrease uplink level=25

    Increase & decrease uplink level to 15 & 25, will it not delay the Power control ??

    4th July 2011 at 19:57 #59927
    pix
    Guest

    suzane,

    I’m kind of useless if i’m starting to give advices on HOW TO increase the call drap rate, and HOW TO degrade voice quality :))

    The settings I’m giving you are very standard. They are more aggressive than yours, but it’s only because yours were very conservative.

    What are your increase step sizes, and increase factors ?

    Regards
    pix

    5th July 2011 at 14:47 #59928
    Suzane
    Guest

    Dear Pix,

    Please don’t take it on other way… Let me Implement these & will share the Pre-Post

    5th July 2011 at 16:27 #59929
    pix
    Guest

    ok, no problem ! fingers crossed 🙂

    15th November 2011 at 21:50 #59930
    Danny
    Guest

    I have activated DTX+AMR on FR and just AMR on HR, and the voice quality is good enough, and statistics so far so good.

    If u have a very high problem with Dropped calls Statistics but the voice quality is good, just increase “Radio Link Time Out” to 64.

    16th November 2011 at 18:53 #59931
    Ian
    Guest

    Danny,

    DTX UL or DL ?

    Which version of ALU are you using ? B10 Mr7 or B11 ?

    Regards
    Yann

    18th November 2011 at 02:36 #59932
    Danny
    Guest

    UL and DL (HR)

    I work with Huawei, but Its the same, in the past I work with Siemens, and the differences are minimum.

    Try to deactivate DTX on HR, In my experience DTX affect HR Voice Quality, and we don’t care to save battery on phones, I rather keep voice quality.

    And remember wen u use AMR, its recommending increase Radio Link Time Out to 64, we can save voice quality but the carrier quality its the same.

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