5G system-level simulation showing unwanted signal in spectram analyzer

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Syed Ayaz
Syed Ayaz 2024-9-9
评论： Saurav 2024-10-7
File attached.
I'm using Matlab's 5G toolbox to do a system level simulation (with the attached code). The code runs fine. To generate traffic, I am using OnOffTraffic generator function. I am producing only downlink traffic (gNB to UE).
As I understand, the system level simulation does not transmit SSB (signaling). Only data is being transmitted. But if I plot a spectrogram of the received samples (from signal analyzer app), I am seeing power at certain intervals (has pattern). These are surely not data traffic as I have confirmed by varying data rates and on-off timing.
Can anyone give me any idea on what these narrow signals are ? How are they even there ? Or how to know where they are generated from ?
Thank you,
Sam
  1 个评论
Saurav
Saurav 2024-10-7
Can you provide the snapshot of what you are getting in the Signal analyzer app, and what exactly are you plotting?would be helpful in debugging.

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