Long Term Evolution (LTE)

[Monty]

LTE is the next-step of the evolution of UMTS (3G) and HSDPA (3.5G). Its the only wireless network technology thats correctly called 4G. Some carries may market their high-speed HSDPA networks as 4G, but thats not technically correct.
Some of the improvements LTE brings along over the currently used wireless mobile radio technologies are a better spectral efficiency, lower costs, higher transfer speeds, improved services, etc.
LTE networks are widely available in the USA by carriers such as AT