I currently have a 3G mifi in my home and a get a decent signal. I'm thinking about getting a 4G MiFi unit but I don't have a signal for 4G. When I look at the 4G range map, I see that 4G extended service at the end of my street which is no more than 2 tenths of a mile Is there a booster that I can get to recieve the 4G Extended after I purchase a 4GLTE?