When will Sprint get 4g LTE in Las Vegas, Nevada?

I just got an iPhone 5 exactly two weeks ago and the 3G is so slow! Do you know when sprint will get 4g LTE?

No but a good way to help the 3g along is to try to get rid of some apps cause they slow down you're device. But do you close you're open apps cause you need to it should help it to. Sorry for a short answer but a other way is to get on a new plan like apple or Verizon or just wait till it gets 4g