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Thread: voice quality

  1. #1
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    Default voice quality

    Dears,
    In 3G network, how to evaluate voice quality?

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  3. #2
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    Default Re: voice quality

    What is your vendor?
    Quote Originally Posted by magno22 View Post
    Dears,
    In 3G network, how to evaluate voice quality?

  4. #3
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    Default Re: voice quality

    lets say it is e*******, I am interested in knowing through STS (stats). Note our speech is using fixed 12.2 codec rate

  5. #4
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    Default Re: voice quality

    For E/// there is no counter to measure SQI in 3G just field measurement by PESQ/POLQA technique .


    Cheers
    Quote Originally Posted by Muhammad Imran Rafique View Post
    lets say it is e*******, I am interested in knowing through STS (stats). Note our speech is using fixed 12.2 codec rate

  6. #5
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    Default Re: voice quality

    we use BLER to measure quality.


    E/// formula=<pmFaultyTransportBlocksAcUl>/<pmTransportBlocksAcUl>*100)
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  7. #6
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    Default Re: voice quality

    Hi,


    BLER rate shows faulty transport block ratio which basically related to transmission media and network. I afraid to say it does not show SPEECH QUALITY .If you have any practical case please share to be more clear to all.


    Cheers
    Quote Originally Posted by auto_art View Post
    we use BLER to measure quality.


    E/// formula=<pmFaultyTransportBlocksAcUl>/<pmTransportBlocksAcUl>*100)

  8. #7
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    Default Re: voice quality

    in our case E/// recomend this to use for voice quality. I guess a good ratio of successfully decoded transport block would always indicate good health of network.
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  9. #8
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    Default Re: voice quality

    Thanks , Would you please share the reference in Alex for this recommendation .


    Cheers
    Quote Originally Posted by auto_art View Post
    in our case E/// recomend this to use for voice quality. I guess a good ratio of successfully decoded transport block would always indicate good health of network.

  10. #9
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    Default Re: voice quality

    Dears,
    Vendor is Huawei. our customers complain some times they are obstacle can not hear voice and robotic voice in short time then call is continuously normal. How can i detect this problem?

  11. #10
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    Default Re: voice quality

    You can check UL load and attempts cell update with cause for voice calls
    Quote Originally Posted by magno22 View Post
    Dears,
    Vendor is Huawei. our customers complain some times they are obstacle can not hear voice and robotic voice in short time then call is continuously normal. How can i detect this problem?
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