femtocell

FEMTOCELL

Technology

femtocell is a small, low-power cellular base

station, typically designed for use in a home or small business

It connects to the service provider’s network via broadband (such as DSL or cable)

A femtocell allows service providers to extend service coverage indoors or at the cell edge, especially where access would otherwise be limited or unavailable.

INTRODUCTION

FEMTOCELL

Although much attention is focused on

WCDMA, the concept is applicable to all standards, including GSM, CDMA2000, TD-SCDMA, WiMAX and LTE solutions.

Femtocells are an alternative way to deliver the benefits of fixed-mobile convergence (FMC)

Many operators have launched femtocell service, including Vodafone, SFR, AT&T, Sprint Nextel, Verizon, Zain, Mobile TeleSystems, and Orange.

STANDARDS

Femtocells are sold by a mobile network

operator (MNO) to its residential or enterprise customers

it is plug and play, there is no specific installation or technical knowledge required—anyone can install a femtocell at home.

Femtocells require specific hardware, so existing WiFi or DSL routers cannot be upgraded to a femtocell.

OPERATING MODES

PROCESS

The standards bodies have published formal

specifications for Femtocells for the most popular technologies, namely WCDMA, CDMA2000, LTE and WiMAX.

1. femtocell should act as its own access points.

2. authentication of encrypted IP data.3. allows software updates and diagnostic

checks to be administered.

ARCHITECTURES

The key interface in these architectures is that

between the Femtocells access points and the Femtocells gateway.

common WCDMA Femtocells, this is defined as the Iuh interface

In luh architectures Femtocell gateway acts as a the intermediate between the femtocell and core network.

It performs the translation of data to set the femtocell as the radio network controller to the mobile switching centres(MSC)

In March 2010, the Femto Forum and ETSI conducted the first Plug fest to promote interoperability of the Iuh standard

SERVICE

There is a security tunnel which

provides data transmission from the home network to the security gateway.

Link from the home network to the core network through is insecure. To make it secure the femtocell implements IPSEC.

SECURITY

Secure storage and execution1. hosting party module2. trusted environment Mutual authentication1. device mutual authentication2. hosting party mutual authentication Location verification the operator needs to verify the home network for prevent illegal access.

SECURITY FUNCTIONS

EXAMPLE

MODELS

compensating poor cellular coverage inside

the homes lower call charges while the caller calling from

home maximum functionality. Femtocell can provide 3G services. High bandwidth. Larger data transmission.

ADVANTAGES

Limited connection Some internet data plans today, charge on the

basis of bandwidth used. neighbouring subscribers may or may not be

allowed to connect to them Trouble shooting is difficult. Only 5 users can be allowed to use.

DISADVANTAGE

Femtocell is the latest emerging

technology that can solve the signal problems in the cellular network. It can be used to provide high speed internet connectivity. It can also be used to implement the Wi-Fi connection for internet. The wireless internet connection problems can be solved by this technology.

CONCLUSION

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