The principal performance benefit femtocells bring to LTE is to ensure more users receive peak data rates more of the time, especially inside buildings where the most mobile broadband data is consumed and where the service quality is lower than outside.
Femtocells achieve this by maximising spectrum re-use and by ensuring power, and therefore network capacity, is not wasted by trying to penetrate buildings.
Although most discussion to date of femtocells has focused on residential use, the technology is also applicable to enterprises, public spaces or "
.