The Apple iPhone 5 is expected to be unveiled next week at an event in San Francisco. The iPhone 5 is expected to have an LTE high-speed fourth-generation wireless network according to The Wall Street Journal. The iPhone 5 is expected to also have a taller screen. Supporting LTE wireless networks around the world can be a challenge because carriers run networks on different bands of spectrum. The radios that are in the phones must support specific types of bands.