Unlike UMA, femtocells operate in strictly regulated licensed spectrum sparking the challenge of radio frequency (RF) interference with the existing macro-cellular network. How can interference be minimized? Read on.

Wikipedia describes ‘femto’ as an SI prefix in the International System of Units denoting a factor of 10-15, or one quadrillionth. In sharp contrast to a macro-cell, a femtocell is a very small wireless base station residing in a consumer’s home. Femtocells are designed to provide excellent coverage in indoor environments and to work seamlessly with any existing 3G handset, thereby eliminating the need for power-hungry dual-mode handsets.