The femtocell technology
https://www.electronics-lab.com/the-femtocell-technology/
by Slovati @ dev.emcelettronica.com: Femtocells are basically low-power wireless access points that operate inside licensed frequency bands for connecting standard mobile devices with a provider’s network, using a broadband connection such as the DSL or a cable connection (basically using the best Internet connection available at that point). A femtocell is therefore an indoor base station that […]