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Thread: Difference Ec/No between Idle, and Voice CS12.2K

  1. #1
    Member Reputation: 310
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    Default Difference Ec/No between Idle, and Voice CS12.2K

    Dear all
    I have one concern about Nemo,
    I have just finished DT with Nemo Outdor and I dont know what is problem?
    The Ec/No of MS in voice mode is better than Ec/No in Idle mode. ( The same MS)

    I give you logfile and consider for me and give me advise

    Thank so much
    Attached Files Attached Files

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  3. #2
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    Default Re: Difference Ec/No between Idle, and Voice CS12.2K

    What is the channel for you to get Ec/No in 3G?

  4. #3
    Moderator Reputation: 4337 kamy's Avatar
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    Default Re: Difference Ec/No between Idle, and Voice CS12.2K

    Quote Originally Posted by cdmahn View Post
    What is the channel for you to get Ec/No in 3G?

    ????? strange question actually

  5. #4
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    Default Re: Difference Ec/No between Idle, and Voice CS12.2K

    Quote Originally Posted by cdmahn View Post
    What is the channel for you to get Ec/No in 3G?
    I mean what is the Ec/No parameter that the author get in Actix/Nemo.

    If he uses Actix, I guess he use Uu_ActiveSet_EcNo_0 for Ec/No, and the answer is quite easy. In voice mode, due to SHO, Uu_ActiveSet_EcNo_0 is the best Ec/No of cells in Active Set. In Idle Mode, it is just simple the Ec/No of active cell itself. So, Uu_ActiveSet_EcNo_0 in Voice mode should be better than it in Idle mode.

  6. #5
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    Default Re: Difference Ec/No between Idle, and Voice CS12.2K

    Dear
    Do You assume that another effect to MS in Idle mode?
    But the both of MS which were together,and i already exchanged to check.

    RG

  7. #6
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    Default Re: Difference Ec/No between Idle, and Voice CS12.2K

    it is because of Power control Algos
    Last edited by moh_sulaiman; 2012-10-24 at 12:34 AM

  8. #7
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    Default Re: Difference Ec/No between Idle, and Voice CS12.2K

    because handover gain.

  9. #8
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    Default Re: Difference Ec/No between Idle, and Voice CS12.2K

    All
    It's not clearly,
    we have the signal power=P

    the chip rate=W

    the user bit rate=R

    the noise=PN

    the interference= I (interference between users)

    Ec=P/W
    Io=I/W
    N0=(I+PN)/W
    ---> Ec/No = P/ ( I + PN)

  10. #9
    Junior Member Reputation: 12
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    Default Re: Difference Ec/No between Idle, and Voice CS12.2K

    UE will add own interference in dedicated mode.SO its different.
    Any body have different answer than please reply.

    How to Resolve RTWP?
    FInd here complete answer on RSCP and RSSI
    Last edited by umts99; 2012-05-30 at 11:51 AM

  11. #10
    Member Reputation: 143
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    Default Re: Difference Ec/No between Idle, and Voice CS12.2K

    For you to compare Ec/No in 2 scenario, everything should be equal so its apple to apple. I assume this is in different time since you use same MS for idle and voice.

    1. Same time?
    2. Same cell load?
    3. Same direction of drive test?
    4. Same best server?

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