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PRESENTATION on Femtocell Technology By Harshit Bhatnagar Shahid Kalaniya SVKM’s NMIMS University


INTRODUCTION History of Femtocells :- The first interest in femtocells started around 2002 when a group of engineers at Motorola were investigating possible new applications and methodologies that could be used with mobile communications . A couple of years later in 2004, the idea was beginning to gain some momentum and a variety of companies were looking into the idea . With the idea gaining momentum, and many more companies investigating femto cell technology, the Femto Forum was set up in July 2007. Its aim was to promote the wide-scale adoption of femtocells. With mounting industry pressure to be able to deploy femto cell technology, the Femto Forum also played a coordinating role in ensuring that the standards were agreed and released as fast as possible.

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What is Femtocell ? A femtocell is a small cellular base station designed for use in residential or small business environments. I t connects to the service provider’s network via broadband (such as DSL or cable) and typically supports 2 to 5 mobile phones in a residential setting. A femtocell allows service providers to extend service coverage inside of your home - especially where access would otherwise be limited or unavailable - without the need for expensive cellular towers. It also decreases backhaul costs since it routes your mobile phone traffic through the IP network. A femtocell is sometimes referred to as a “home base station”, “access point base station”, “3G access point”, “small cellular base station” and “personal 2G-3G base station”.

Different Models of Femtocell:

Different Models of F emtocell

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FEMTOCELL SYSTEM BASICS Femtocells are essentially a form of cellular access point. The femtocells provide connectivity between the local mobile phones and an internet router. However this is only part of the overall femto cell system required. Several items are needed : Femtocell itself Internet router to enable the data to be passed to and from the femto cell via the Internet Internet link Mobile telecommunications service provider core network gateway





Femtocell Architecture:

Femtocell Architecture

How fast can it go?:

How fast can it go? 2.5 G The femtocell will be 2G GSM technology, supporting data services through GPRS and EDGE which typically offer up to 384kbit/s. 3G UMTS HSPA Femtocells add network capacity and make it possible to deliver 14.4 Mbps HSDPA data rates to consumers in indoor environments. Evolved HSPA provides HSPA data rates up to 42 Mbit/s on the downlink and 22 Mbit/s on the uplink with MIMO technologies and higher order modulation.

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WiMAX needs femtocells even more than 3G WiMAX is at higher frequency: worse coverage WiMAX is predicated on high-speed data 2.5GHz and 64QAM will not go well through walls Coverage - Users are guaranteed coverage at their home - Femtocells can cover the surrounding area outside building Building penetration - 60-70% of mobile usage is in-building - QPSK modulation and strong FEC needed for building penetration – reduces overall cell capacity Capacity - Macrocell: Typ 30 Mbps shared between 100 users - Femtocell: >10 Mbps shared between 3-5 users Cost $100 for femtocell vs $10,000 for macrocell Cheap backhaul via DSL, cable or fiber- consumer pays


BENEFITS OF FEMTOCELLS Technical Advantages Low Cost Low Power Easy to Use Compatibility & Interoperability Deployment Customer’s point of view Increased Indoor Coverage Load sharing Better Voice Quality Better Data/Multimedia Experience Wireless Operator’s point of view Lower CAPEX and OPEX Increased network capacity Newer Revenue Opportunities


THINGS TO BE ADDRESSED Interference Spectrum Access control Equipment location Network integration Quality of service Handover

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What Femto World is trying to address . - Femtocell Business Model and Deployment Options Femtocell Evolution – How will femtocells evolve alongside 4G technologies such as WiMAX and LTE? Network Integrations and Scalability Issues – What is the best way to integrate femtocells into the operators network. Femtocell Provisioning – How is zero touch installation and deployment going to be obtained? Standards and Regulatory Dimension Femtocell Security – How will security issues and QoS over backhaul will be solved ? -Analysis of different forms of attack: SIM cloning, access to UMA without SIM. - Analysis of different fraud scenarios (national usage, international usage).


DEPLOYMENT Femtocells are being deployed in various markets while the standardization is still progressing. Nevertheless, when fully deployed, femtocells will result in orders of magnitude increase in area spectral efficiency, thus maximizing the return on expensive 3G licensed spectrum. At the end of 2011, femtocell shipments have reached roughly 10 million units deployed annually, and the market is expected to grow rapidly with distinct segments for consumer, enterprise, and carrier-grade femtocell deployments. Research firm Berg Insight estimates that the shipments will grow to 22 million units worldwide by 2014.


CONCLUSION Femtocells have the potential to provide high quality network access to indoor users at low cost, while simultaneously reducing the burden on the whole system. For a mobile operator, the attractions of a femtocell are improvements to both coverage and capacity, especially indoors. Consumers benefit from improved coverage and potentially better voice quality and battery life. It provide a "5 bar" coverage when there is no existing signal or poor coverage and higher mobile data capacity, which is important if the end-user makes use of mobile data on their mobile phone.

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