[srsran-users] srsUE unable to attach to USRP N210

[Andrei-Paul Țocu]

Hello,

So there is no way for me to make srsRAN work with the n210? If there is a way, can you please guide me to that?

Best regards,
Andrei

On 22 Feb 2023 10:42, "Johann T." <johann.tzt at gmail.com> wrote:
You don't often get email from johann.tzt at gmail.com. Learn why this is important<https://aka.ms/LearnAboutSenderIdentification>
Hi Andrei,

It won't work with N210 due to the fixed sample rate of 100 MHz, which is not the multiple of the common LTE sampling rates. You would need B210 for that.

Good luck!

Johann


On Tue, Feb 21, 2023 at 6:13 PM Andrew <at1288 at live.mdx.ac.uk<mailto:at1288 at live.mdx.ac.uk>> wrote:

Hello!

I have a major project for uni that requires me to create a phantom-cell 4G/5G network.

The professor provided me with two N210 USRPs and managed to flash them both with the right firmware and both are detectable by pinging their ips.

But when it comes to using SRS nothing works - srs won't attach to any of them. Yet, when running sudo srsue it appears as that it recognizes the USRP2/N-series but won't go any further.

I am extremely newbie in this field, I have just some tiny linux experience and basic C programming skills.

Please see attached the error

[ERROR] [UHD RF] AssertionError: assertion failed:
  internal is not a valid time source.
  possible values are: [none, external, _external_, mimo].


and


Unable to open RF device 'file'
/home/andrew/srsRAN/lib/src/phy/rf/rf_imp.c:149: Failed to open a RF frontend device. Please check the available srsRAN CMAKE options to verify what RF frontend devices have been detected in your system
Error initializing radio.


Please advise.

Best regards,

Andrei-Paul Tocu

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