[srsran-users] Need IQ samples of DL + UL (FDD/TDD) in real or test 4G LTE network

[Sabyrzhan Tasbolatov]

Hi Ismail,

> Once we release our Phase-2 features at the end of Spring, it will be possible to run an srsRAN eNB and a UE simultaneously in our emulation environment while capturing both DL and UL I/Q samples.

Thanks! Will try to find samples somewhere else and look forward to
your project. Looks interesting!

On Mon, Feb 13, 2023 at 11:37 PM Ismail Guvenc <iguvenc at ncsu.edu> wrote:
>
> Hi Sabyrzhan,
>
> This may not be the answer you are looking for (at least for now), as you seem interested in UL recordings, but for what it's worth. We have downlink LTE I/Q sample records from an srsRAN LTE eNB here, captured at a UAV flying at different altitudes: https://sites.google.com/ncsu.edu/aerpaw-wiki/aerpaw-user-manual/4-sample-experiments-repository/4-4-data-repository/aerpaw-nrdz-research/april-2022-lte-iq-measurements-at-multiple-uav-heights
>
> There is however no uplink transmission, as there is no UE connected to the eNB. You may find more details in the paper linked from the page above. Once we release our Phase-2 features at the end of Spring, it will be possible to run an srsRAN eNB and a UE simultaneously in our emulation environment while capturing both DL and UL I/Q samples.
>
> --
>
> Ismail Guvenc, Professor
> Department of Electrical and Computer Engineering
> North Carolina State University
> Email: iguvenc at ncsu.edu
> Office Phone: 919-513-1378
> https://research.ece.ncsu.edu/mpact/
>
>
> On Mon, Feb 13, 2023 at 4:30 AM Sabyrzhan Tasbolatov <snovitoll at gmail.com> wrote:
>>
>> Hello,
>>
>> This is another attempt of my prev. question in srsran mailing list:
>> "How to run srsUE standalone to connect to commercial eNB: "Failed to
>> initialize USIM"
>>
>> Can anyone send me IQ samples (whether in CSV format or eCPRI IQ data PCAP etc.)
>> where there are captured DL + UL raw IQ samples in any transmission
>> scheme? Or if there is any
>> sources where I can download from? I've tried to search within the
>> mailing list -- no result.
>>
>> I need such data to learn on how to detect PRACH preambles and do RRC message
>> sequence decoding properly for my study purposes.
>>
>> I've asked the question if I can use srsUE for that -- but I'm having
>> difficulties with setup
>> srsUE to talk to commercial LTE network to grab UL IQ data.
>>
>> Just 1-2 sec capture will be enough as long as there are DL + UL data.
>>
>> Thanks,
>>
>> --
>>          Sabr
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-- 
         Sabr