The monthly fee for wireless broadband refers to the time you purchase wireless broadband data at the mobile business hall. There are a variety of plans to choose from, such as the common per-data or monthly plan fee called a monthly fee.
After you pay the normal monthly fee, you can use any wireless signal within a month, which is the meaning of wireless broadband monthly fee.
It's a broadband service for the Internet, with an unlimited monthly plan, similar to a mobile phone plan