RM500Q OAI test

I am trying to connect my RM500Q modem to an OpenAirInterface 5G core network. When using windows as laptop OS to connect with the modem, I have no problems (my laptop gets an IP after installing the last Windows Quectel driver), but when I use a linux device, the modem connects correctly to the 5G CN but my computer does not get an IP to interact with. I think that it may be related to the driver, so I would like to check which part of the linux driver should be installed, in addition to instructions about how to install it. I have seen in the pdf that there are several sections, so, I am not sure which tool should be installed. I am using Ubuntu 20.04 LTS.
Best regards

Dear @ameseguer
I have sent the linux driver to you, please check.