WCDMA Refarming Overview

WCDMA Frequency RefarmingOverview

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Nokia Siemens Networks

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End-users want 3G services at a reasonable priceMarket Trend5000

Operator challengesCost efficient WCDMA network expansion and operation

WCDMA subscriptions growing

Subscriptions in million

4500 4000 3500 3000 2500 2000 1500 1000 500 02001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012

Demand for 3G coverageis growing Voice ARPU decreasing

HSPA services are operatorGSM 2+2.5G WCDMA (incl. HSPA ...)

iDEN Other Technology CDMA Family

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ARPU decreasing

key assets Most HSPA usage comes from indoors Data pricing typically based on flat rate

Guaranteed high speed data services for indoors

ARPU ( per month)

35 30 25 20 15 10 5 020 01 20 02 20 03 20 04 20 05 20 06 20 07 20 08 20 09 20 10 20 11 20 12

Regulators are opening

Voice

Data

900 MHz band for WCDMA WCDMA 900 MHz terminals arriving to market

Successfully accommodate WCDMA into the GSM/CDMA/TDMA bands

Source: Nokia Siemens Networks

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Nokia Siemens Networks

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Addressing challenges with WCDMA at 900 MHz frequency3G Low band cell 3G High band cell

Sub-urban & rural 3G coverage expansion

Initial 3G roll-out

Urban 3G coverage improvement

Wireless broadband for sub-urban & rural with HSPA / I-HSPA

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Nokia Siemens Networks

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WCDMA refarming to 900 MHz frequency band Introduction of 3G services intofrequency band that is already used for other technology, like GSM In order to fit the WCDMA carrier into same bandwidth, typically spectrum efficiency needs to be improved2100 MHz bandOperators current GSM bandwidth

WCDMA/HSPA = WCDMA = GSM after refarming

900 MHz band

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Nokia Siemens Networks

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WCDMA 900 MHz can be used today All major WCDMA chipset platformvendors support WCDMA 900 MHz Operator requirement for WCDMA 900 MHz capable terminals growing WCDMA 900 MHz devices arriving to the marketSome examples:Nokia 6121 classic Nokia 3120 classic Nokia 6220 classic

There will be data cards and USB modems very soon from all the vendors Next year, UMTS900 will be an available feature in a significant number of the 3G terminals sold in Europe, and in 2009, UMTS900 will be a standard feature.Eetu Prieur Head of radio networks, Elisa Finland

Nokia N96

Nokia N78

Nokia 6210 Navigator

(3G Wireless Broadband, December 19, 2007)

Customer confidential 5 Nokia Siemens Networks 5 Nokia Siemens Networks

/ WCDMA Refarming Solution MP / S.Lankinen / 18.02.2008

What to consider when deploying WCDMA 900 MHzGSM capacityGSM capacity & service quality must remain unchanged Careful frequency planning and network optimization Implementation of GSM spectrum efficiency functionalities Minimized frequency need for WCDMA carrier

InterworkingSmooth GSM/ WCDMA interworking to ensure high user experience Different GSM/WCDMA handover options Traffic balancing between GSM and WCDMA cells

Network managementNew technology in same frequency band complicates the network management Common management system for both GSM and WCDMA networks Automated joint network management

Nokia Siemens Networks WCDMA Frequency Refarming Solution taking into account all needed aspects6 Nokia Siemens Networks /

Building blocks of the Nokia Siemens Networks WCDMA Frequency Refarming solution

GSM & WCDMA functionalities

BTS site systems

OSS tools & functionalities

Services

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Nokia Siemens Networks

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Elisa Finland launched world's first commercial WCDMA 900 MHz network (8 November 2007) WCDMA 900 networkThanks to the Nokia Siemens Networks frequency refarming solution, we are now running

launched in 2 areas in southern Finland Target to cover 75% of Finns with 3G services at the beginning of 2008 Data rates are at beginning up to 2 Mbps and 2008 planned to be increased close to 10 Mbps

extend our 3G services costeffectively from cities to the less populated areas of Finland.

WCDMA and GSM efficiently in our 900 MHz frequency allocation, enabling us to

President and CEO, Elisa CorporationNokia Siemens Networks press release, November 8, 2007

Veli-Matti Mattila

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Nokia Siemens Networks

Mobile World Congress 2008, Barcelona /

Thank you

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Nokia Siemens Networks

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