Here is the way to tell you how to use MV31-W PCIe varient MBIM on Ubuntu_18.04. It can also adopt to other Linux platform; however it ***** to be addressed the Linux kernel should be higher than 4.5. Please see the detail setting for the attached file. 

Test platform for this article:

Host: Ubuntu 18.04.5

Platform: Dell Optiplex 9020

• PCIe gen2
  • x1-slot each direction speed –500 MB/s
• PCIe gen3
  • x16-slot each direction speed–16 GB/s