Path loss and cqi

[kaouthar ouali]

Hi,

When I simulate a 5G scenario in NS-3, I noticed that the CQI values of all UE's is 15.

CQI value is not varying among users and with time.

NB: The UEs are not moving.

Does anyone knows how can I add the path loss model in a building to get different CQI values for different UE's?

Regards,

[Eduardo Fabricio]

Hello Ouali,

I have some ideas to change the CQI. You can change it by moving the UE far from gNodeB or applying fading or interference. You can change:

• Bandwidth part https://cttc-lena.gitlab.io/nr/html/structns3_1_1_bandwidth_part_info.html
• path-loss https://www.nsnam.org/docs/models/html/propagation.html
• mobility https://www.nsnam.org/docs/models/html/mobility.html
• Topology changing the position of the UEs.
• Position https://www.nsnam.org/docs/release/3.18/doxygen/classns3_1_1_position_allocator.html

https://cttc-lena.gitlab.io/nr/nrmodule.pdf

Cheers,

Eduardo

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