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Thread: CA doubt

  1. #1
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    Default CA doubt

    Hi

    My doubt may sound silly, pls bare with me.

    In network there are two bands . i.e Band 3 and Band 41 , when CA is enabled UE will getting data streams from both band. So how does UE listens to two different frequency at same moment. UE which is now available in market is having 2 Port(Tx/RX).

    Rgds
    Plannerguy

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  3. #2
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    Default Re: CA doubt

    Is it about LTE?
    Aggregation of carrier bands 3 FDD and 42TDD?

    Quote Originally Posted by plannerguy View Post
    Hi

    My doubt may sound silly, pls bare with me.

    In network there are two bands . i.e Band 3 and Band 41 , when CA is enabled UE will getting data streams from both band. So how does UE listens to two different frequency at same moment. UE which is now available in market is having 2 Port(Tx/RX).

    Rgds
    Plannerguy
    BR Slava

  4. #3
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    2 out of 2 members found this post helpful.

    Default Re: CA doubt

    Hi.
    There are several modes for CA supported by 3GPP, with one or two PA's and receivers.
    Please, have a look to the attached paper (page 41).
    Hope it helps

  5. #4
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    Default Re: CA doubt

    @plannerguy

    Here you have a good book in case you require a deeper knowledge in terminal design

    https://libgen.pw/download/book/5a1f...044650f5131beb

    Goog reading

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  7. #5
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    Default Re: CA doubt

    Hi

    Thanks will go through doc.

    Will be helpful if there is crisp answer.

    Rgds
    Plannerguy

  8. #6
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    Default Re: CA doubt

    Measurement gaps are there to let UE listens to other freq. defined in SIB
    if you have two bands already configured in PC, SC why is a need to scan other?
    Auto_art Default PAS: london
    pl rate threads for their usefulnes
    share & care

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  10. #7
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    Default Re: CA doubt

    Quote Originally Posted by plannerguy View Post
    Hi

    My doubt may sound silly, pls bare with me.

    In network there are two bands . i.e Band 3 and Band 41 , when CA is enabled UE will getting data streams from both band. So how does UE listens to two different frequency at same moment. UE which is now available in market is having 2 Port(Tx/RX).

    Rgds
    Plannerguy
    UE measures the CQI for both the frequency bands while measurement starts for CA configuration: UE reports RSRP only for other layer once lets say on band 3, If better than configured threshold then UE configures CA but CA activation is only done once there is some data to be sent which can't be finished by first carrier only. During CA active mode UE reports CQI, PMI , RI for both layers to primary cell only. It's just like measurement gap you can measure other frequencies too.
    --------------------------------------------------------------------------------------------------------
    Thanks!

    Pass: optimizer

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  12. #8
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    Default Re: CA doubt

    @Nyquist
    This download link: not working


    Quote Originally Posted by Nyquist View Post
    @plannerguy

    Here you have a good book in case you require a deeper knowledge in terminal design

    https://libgen.pw/download/book/5a1f...044650f5131beb

    Goog reading
    BR Slava

  13. #9
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    Default Re: CA doubt

    Quote Originally Posted by slava121 View Post

    Hi.
    I have just checked it and work fine.

  14. #10
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    1 out of 1 members found this post helpful.

    Default Re: CA doubt

    Hi.
    It seems that some addresses cannot be acceded from some countries.
    Sorry for that. Try this new one

    http://download.library1.org/main/16...%282016%29.pdf

  15. Thanks slava121 thanked for this post

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