[srsran-users] Could not set RX rate to 11.520 MHz. Actual rate is 11.703 MHz

[Xavier Arteaga]

Hi Yufan,
Are you running a 10MHz bandwidth eNb?

My comments:
- make sure it recompiles after setting `-DUSE_LTE_RATES=ON`;
- `base_srate=30.72e6` has no effect; and
- append `master_clock_rate=245.76e6` to the RF device arguments.

Kind regards,
Xavier

On Wed, 29 May 2024 at 09:49, ZHUANG Yufan <yufan.zhuang at connect.ust.hk>
wrote:

> Dear team,
>
> When I ran srsenb, I encountered the following warning and the srsenb
> cannot start.
>
> [WARNING] [MULTI_USRP] Could not set RX rate to 11.520 MHz. Actual rate is
> 11.703 MHz
> [WARNING] [0/DDC#0] The requested decimation is odd; the user should
> expect passband CIC rolloff.
> Select an even decimation to ensure that a halfband filter is enabled.
> Decimations factorable by 4 will enable 2 halfbands, those factorable by 8
> will enable 3 halfbands.
> decimation = dsp_rate/samp_rate -> 21
>
> I have added "-DUSE_LTE_RATES=ON" when building srsran, and added
> "base_srate=30.72e6" in the enb configuration file. My device is USRP X410.
>
> It seems that my srsenb does not use standard LTE rate. How to set this?
>
> I highly appreciate your help. Looking forward to your reply.
>
> Sincerely,
> Yufan
> _______________________________________________
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> srsran-users at lists.srsran.com
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>
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