Need help with portforwarding over 3g data on android

I am having an app that needs config about portforwarding. I am using 3g mobile data and dont have any router. I need to use the app. Is there a way I can portforward . I used an app whih showed me that I have 0 ports open. Plz help me with that. I want to use a remote app for which I need the portforward tut. I've also heard that I could use VPN. Please give me step by step procedure......... Any help would be highly appreciated.

Download from this link