[srsran-users] About the 5GNR cell search

[Xavier Arteaga]

Hi Johann,

> I tried it on n78 and it ran fine.

I understand that runs but no cell is found.

> When I changed it to n20 (where I know there is a NSA NR cell nearby), I
got an error (Assertion failure).

Could you provide more details? Program arguments, radio device, and
console output. Also, it would be nice if you could share a capture of the
SS/PBCH block spectrum, I recommend using GNU Radio with Fosphor
<https://projects.osmocom.org/projects/sdr/wiki/Fosphor>.

Regards,
Xavier


On Fri, 12 May 2023 at 11:03, Johann T. <johann.tzt at gmail.com> wrote:

> Hi Xavier,
>
> Does the nr_cell_search_rf also work for other bands? I tried it on n78
> and it ran fine. When I changed it to n20 (where I know there is a NSA NR
> cell nearby), I got an error (Assertion failure).
>
> Thanks in advance.
>
> Regards,
> Johann
>
>
>
>
>
> On Tue, May 9, 2023 at 3:56 PM Xavier Arteaga <xavier.arteaga at srs.io>
> wrote:
>
>> Hi Haoran,
>> First of all, I would make sure there is an NR cell nearby and that you
>> know its SS/PBCH center frequency of it.
>>
>> Secondly, I would set the center frequency to match the SS/PBCH center
>> frequency.
>>
>> I recommend using nr_cell_search_rf instead of nr_cell_search_test. This
>> one uses the SS raster for the cell search, however, it has detection
>> problems for moderate CFO.
>>
>> Kind regards,
>> Xavier
>>
>> On Tue, 9 May 2023 at 11:13, HAORAN WAN <wanhr at outlook.com> wrote:
>>
>>> Dear Developers,
>>>
>>> I am trying to use the srsRAN_4G to do 5gNR cell search, I used the test
>>> codes in /srsue/phy/test/nr_cell_search_test.cc but I cannot detect the 5g
>>> cells around me. Can you tell me what I should do?
>>>
>>> Best regards,
>>> Haoran Wan
>>> _______________________________________________
>>> srsran-users mailing list
>>> srsran-users at lists.srsran.com
>>> https://lists.srsran.com/mailman/listinfo/srsran-users
>>>
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>
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