Although traditional licensing is the main solution, it may not always be feasible. Some spectrum holders, such as government users, 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 countrywide , but the radar operations may only be at certain places such as coastline. In such cases, Licensed Shared Access (LSA) 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 get new spectrum for exclusive use, ensuring reliability, and predictability for long time investments.