Hi,
Your description is not very clear, so it is a bit difficult to answer. You are welcome to contact me for further - specific - advice.
License agreements have various options/versions to them. The most common form is this: company A (owns some form of technology) licenses their tech to Company B. company B pays company A royalties (this is the fee for using the technology). Royalties have numerous options: sometimes it's a one time fee, sometimes an annual fee, sometimes a fee for each unit / amount of users/stations, and sometimes it's a combination: set fee + payment for each usage of the license.
Good luck