But you could put some WISP receiver like you see at http://en.wikipedia.org/wiki/Wireless_internet_service_provider then cable that to your router. Your post is too light as to your WISP's infrastructure.
I am not too tech savvy but I'll try to explain this as best I can: I receive my WISP's signal directly from one of their tower "radios" that is located approximately 200 yards from my house. I do not have a modem or a router to supply signal as the signal from the "radio" is sufficient for most parts of my home. BUT, there are some weak spots and that's were my issue is. I want something to relay, for lack of a better term, the signal to these weak spots. Will the WRE54G Range extender work or should I look at something else?