Sending Messages generated by Simu5G over a real network

[Marius Adams]

Hi folks,

I want to built an V2X simulator which sends CAM messages generated in Simu5G over a real 5G network to another PC which is running simu5g as well. The 5G-Hardware and network would be already available and ready to use. I came up with the follwing Idea:

The application(s) of the UE(s) is generating messages and sends them via UDP to the host-os of the left PC. The PC is connected via USB to a 5G-modem which implements the 3GPP Rel.15 specification. The 5G modem then sends the message over a network to another modem, the receiver. There the message is given to the host os of pc 2 on the right. After that the host pc gives the message to simu5g via UDP and is then given to the application running on the UE.

I am not shure about some things in this setup:

• The 5G modem implements the 5G protocolstack from PHY and ACCESS-Layer and in simu5g we have the application and udp. Where do I have to implement the IP-Layer?
• Is it possible to send messages from different UEs to the same Port/connection that connects simu5g and the host-os? Because  I ultimately want to simulate more than one UE that sends data but with the use of the same 5G modem
• Is the UPD Layer the right layer to use for the hand-over of the message from simu5g to the host-os?

To validate that the application, that generates the messages, works as intended I thought about a second setup without the real 5G network. So it would be a standalone simulation. The setup of that looks as follows:

I believe that this second setup is easier to implement in the first place since it doesnt require to use simu5g in emulation mode and the questions about the IP-layer and the breakout of messages out of the simulation is not required.

What do you think: Is the setup with the real 5G network feasible? Because the standalone simulation would just be the proof of concept for the application and the setup with the real network would be my goal.

Thanks