Author: Tom Sun
Hong Kong is one of the most expensive cities in the world to live in. Over there, one million dollars can buy you a 200 square foot home. In a recent AWS-3 spectrum auction in the US, AT&T spent $18.2 billion for a nationwide 20 MHz airway. The same one million dollars can rent you 1KHz of licensed spectrum for a few years. Why are operators spending so much money to secure the rights to send some electromagnetic pulses through the air?