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Thread: LTE Maximum DL throughput Issue

  1. #11
    Member Reputation: 71
    Join Date
    2010-06-16
    Posts
    99

    Default Re: LTE Maximum DL throughput Issue

    I agree that transport is very important , but in such case, you will not observe constantly 100% PRB usage ( or close to 100%).
    have you observed in L3 RB Reconfig. a message used for enodeB to configure Scells? Have you observed that Scells are activated? If yes, what throughput distribution you observed? Maybe there is something in setings of CA. If you can share xml configuration of that enodeB maybe I could check.

  2. #12
    Member Reputation: 87
    Join Date
    2010-08-04
    Location
    Near here
    Posts
    21

    Default Re: LTE Maximum DL throughput Issue

    Hi,

    Could try a simple test for TX limitation but you need 2 users & 2 Ue to test but second Ue (and user) can be regular one.
    1. Start download with your test Ue on one sector, let it get to max throughput
    2. Get another user who is camping in a different sector of the same eNB to start a FTP download

    If the first Ue throughput drops, TX / FTP server / onward internet connection is bad. If it stays steady and user 2 also gets good throughput then TX good.

    I would really recommend having special FTP / HTTP server (files stored in RAM not DISK) close to core without leaving the operator for these tests as too many variables to guarantee throughput once you get above 100mbit/s on the wider Internet. Had hassle with same kind of testing many times .

    Regards

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