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In telecommunications, a femtocell—originally known as an Access Point Base Station—is a small cellular base station, typically designed for use in residential or small business environments. It connects to the service provider’s network via broadband (such as DSL or cable); current designs typically support 2 to 4 active 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; an example is a UMTS femtocell containing a Node B, RNC and GPRS Support Node (SGSN) with Ethernet for backhaul. Although much attention is focussed on UMTS, the concept is applicable to all standards, including GSM, CDMA2000, TD-SCDMA and WiMAX solutions
$ ~- C9 J s* k* Z3 P/ {3 L$ z7 CIssues:
& X/ @: E, o0 V& g2.1 Interference ; J- \3 a, D: r* c
2.2 Spectrum
; X5 o7 m; }/ Y5 d7 B" y* z2.3 Access control
8 [/ w* e3 b$ o: f9 p; O7 M) n+ T2.4 Lawful interception
0 P0 }- h X% ^2.5 Equipment location 2 _) l5 f* e( f5 T& l( [% b" X
2.6 Network integration
- G) b. U! J9 C2.7 Emergency calls
- W# C* U) x5 y+ I; b: m2.8 Quality of service * o5 m' v& V8 Q) g. V' v
2.9 Spectrum accuracy 9 d# h! @. t$ r: s; E
2.10 Handover - R8 m7 R% @& k8 W* G
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