Femtocells

April-2008

Agenda

� Fix Mobile Convergence trend�Repeaters�Dual mode WiFi�Femtocells

� What is a femtocell�Femtocell Definition�Kinds of UMTS femtocells (different architectures)

� Femtocells challenges

Confidential

� Femtocells challenges�Cost�Interference�Potential Consumer Concerns

� Worldwide activity�Carrier position towards femtocells�Existing trails�Femtocells players�Femtoforum

The Need

Confidential

�Voice, Data, Video Anywhere

�Single Device & Single Number

�Mobility – Indoor & Outdoor

Potential Solutions

�Repeaters

�Dual Mode WiFi

Confidential

�Dual Mode WiFi

�Femtocells

Femtocell Concept

Confidential

�Indoor cellular coverage

�Can “talk” with any handset device

�Low cost backhauling

A Femtocell Definition

� A small cellular base station, designed for use in residential.

� Connects to the service provider’s network via broadband.

� Support 2 to 5 mobile.

� Allows service providers to extend service coverage indoors.

Confidential

� Allows service providers to extend service coverage indoors.

� Incorporates the functionality of a typical base station but extends it to allow a simpler, self contained deployment.

� The concept is applicable to all wireless standards, including UMTS, GSM, CDMA-2000, TD-SCDMA and WiMAX solutions.

UMTS Macro NW Architecture

Confidential

UMTS Femtocells Architecture

�Iub over IP Architecture

Confidential

�Scalability ProblemRNC can’t handle 1000s of NodeBs

UMTS Femtocells Architecture

�Iu over IP Architecture

Confidential

�Requires RNC implementation per femtocell

UMTS Femtocells Architecture

�SIP/IMS Architecture

Confidential

�Requires changes at the existing CNs

UMTS Femtocells Architecture

Confidential

�De-facto architecture is the Iu over IP

Femtocells Challenges

�Femtocell Cost

�Network Architecture Harmonization

�RF Interference

Confidential

�RF Interference

�Remote Device Management

�Potential Consumer Concerns

Femtocells Cost

�Today femtocell price is ~$250

�Femtocell price must be less than $100 in order to have a high volume market

�Digital baseband and RF ICs must be

Confidential

�Digital baseband and RF ICs must be highly integrated

Network Arc Harmonization

Confidential

RF Interference

�Need to investigate the interference scaling effect of large deployments of femtocells on the same/adjacent carrier in a range of different networks

Confidential

Potential Consumer Concerns

A basestation at my home???

�Femtocell transmits less than DECT or WiFi

�Handset transmits less power near femtocell

Confidential

�Handset transmits less power near femtocell

�UMTS femtocell max transmit power is 10-17dBm (3G handset max transmit power is 21dBm)

Femtoforum

�Today has 65 members

Confidential

Femtoforum

Confidential

Femtocells Vendors

� NW vendors, startups companies and consumer networking vendors

Confidential

Femtocells Here They Are

Ubiquisysip.access Ericsson

Confidential

SamsungRadioframeAirvana

US Operators View

Confidential

Europe & Japan Operators View

Confidential

Thank You!

Confidential

Thank You!