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Definition: In telecommunications, a femtocelloriginally known as an Access Point Base Stationis a small cellular base station, typically designed for use in residential or small business environments.
It connects to the service providers network via broadband (such as DSL or cable); current designs typically support 2 to 5 mobile phones in a residential setting.
A femtocell allows service providers to extend service coverage indoors, especially where access would otherwise be limited or unavailable.
The femtocell incorporates the functionality of a typical base station but extends it to allow a simpler, self contained deployment; for example, a UMTS femtocell containing a Node B, RNC and GSN with Ethernet for backhaul.
Although much attention is focussed on UMTS, the concept is applicable to all standards, including GSM, CDMA-2000, TD-SCDMA and WiMAX solutions.
For a mobile operator, the attractions of a femtocell are improvements to both coverage and capacity, especially indoors.
There may also be opportunity for new services and reduced cost.
The cellular operator also benefits from the improved capacity and coverage but also can reduce both capital expenditure and operating expense.
Source: Wikipedia (http://en.wikipedia.org/wiki/Femtocell)
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