How can I create a topology having one BS with multiple antennas and multiple UE with multiple antennas each? I would also like to know to fix the number DL and UL layers? Can anybody suggest a link to study?
This is quite simple. You can open the home screen and navigate to 5G. In the 5G design window just drop a gNB, a UE, core devices and a server. Connect the gNB to the core using links. Then configure an application from the remote server to the UE.
To modify the antenna settings right click on the gNB (and the UE) and you can modify the number of Tx/Rx antennas in the PHY layer.
Since 5G simulations take time in NetSim, if we have a large network how can we focus on a small sub-area and "turn off" devices in other parts? This way can we complete the simulations in shorter time?
The number of layers would be equal to Min (Nt, Nr). For DL, Nt would be the gNB tx antenna count while Nr would be the UE rx antenna count. For UL, Nt is the UE tx antennas count while Nr is the gNB rx antenna count.
Anup Vernekar The correct way isn’t to turn off devices but to turn-off application flows to the devices. So, you can focus on a small sub area of a large network scenario by turning-off application traffic to all other UEs that are not within this sub area. This will ensure data transmission simulation of those gNBs/UEs within the sub-area.
Thank you all for the responses. I have understood this clearly now.
I have another query - can someone please let me know how is the data rate between the gNB and the UE decided?
This link explains a Simple 5G Use Case: End to end simulation with 1 gNB and multiple UEs
https://support.tetcos.com/a/solutions/articles/14000137521
You can look at this link where they explain an end-to-end simulation for a simple 5G network topology with single BS and multiple UEs https://support.tetcos.com/support/solutions/articles/14000137521
How do we create a simple vehicular network toplogy in 5G? And for more advanced cases can we interface SUMO tool with NetSim 5G?
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