Although traditional licensing is the main solution, it may not be feasible in some cases. Some spectrum holders such as government users, because of the nature of their operations, may not be using the entire allocated spectrum in every part of their geographic boundaries on a 24x7 basis. For example spectrum for military radar may have been allocated on countrywide basis, but the radar operations may only be utilizing it at certain places such as coastline. In such cases, Authorized Shared Access(ASA) is an ideal approach for 3G/4G operators to access the underutilized spectrum in a mutually beneficial way. It proposes a new regulatory framework to share the spectrum in terms of time or location on an exclusive basis, without interfering with the incumbent’s operations.
Everybody wins with ASA—Incumbent spectrum holders can monetize their underutilized spectrum, 3G/4G operators can cost-effectively get new spectrum for exclusive use, ensuring reliability, and predictability for long time investments; regulators can pragmatically address the ever increasing request for new spectrum for mobile broadband in a timely manner.