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UMTS Forum

IMT-2000 spectrum activities

Christoph Legutko

Siemens AGDirector Frequency Policy

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• Growth of terrestrial mobile services always underestimated

• Industry consensus for spectrum calculations required

• Spectrum could be overloaded within the next five years

• Growth of terrestrial mobile services always underestimated

• Industry consensus for spectrum calculations required

• Spectrum could be overloaded within the next five years

Why does the UTMS Forum investigate radio spectrum ?

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UMTS Forum Studies

• 30 Reports on ...– Regulatory, Frequency Spectrum– Services and Applications

– Market and Technology– User Behaviour

• White Papers– Evolution 2G – 3G– Spectrum

• 30 Reports on ...– Regulatory, Frequency Spectrum– Services and Applications

– Market and Technology– User Behaviour

• White Papers– Evolution 2G – 3G– Spectrum

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1850 1900 1950 2000 2050 2100 2150 2200 2250

AWS

UMTSGSM 1800 DECT MSS

MSSIMTPHS MSSIMT 2000

IMT IMT 2000

MSSUMTS

A D B F A B C MSS

MSS MSS

D FB BC

ITU Allocations

Europe

Japan, Korea(w/o PHS)

North America

1700 1750 1800950 1000800 850 900

IMT 2000IMT 2000

2500 2550 2600 2650 2700

IMT

Cellular

PDC

P C S MSS

GSM

PDC

Cellular Cell. Cell. IMT2000

IMT2000Brasil, Venezuela

under study

AWS

MSSIMT 2000IMT MSSGSM 1800, PCSChina GSMCellular IMT 2000

under study

under study

under studyE E

IMT-2000 Frequency Spectrum after WRC2000

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Spectrum for cellular services

Σ=Total Bandwidth (MHz)

Cellular824-849 / 869-894

Σ=50 MHzGSM 900

880-915 / 925-960Σ=70 MHz

GSM 18001710-17851805-1880

Σ=150 MHz PCS 1900GSM 19001850 - 19101930 - 1990

Σ=140 MHz

IMT-2000

1885 - 1980

+1980 - 2025+2110 - 2200

Σ=230 MHz

NMT

PDC(Japan)843-940

1429-1453/1477-1501

Σ=145 MHzAMPS

142 countries 40 countries 16 countries 50 countries

IMT - 20002500 - 2690

Σ=190 MHz

SPECTRUM

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World Harmonisation

Advanced Wireless ServicesNA GDP

US $ 9,3 trillions31 % of world

Pop 304 million

LA GDPUS $ 1,2 trillions

4 % of worldPop

317 million

GDPUS $ 19,7 trillions

65 % of worldPop

5,4 billion

UMTSCDMA2000, EDGE

UMTS ≥ 2002

UMTS ≥ 2005

Sou

rce:

Sie

men

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Why new Spectrum?

0

100

200

300

400

500

600

Analogue Digital IP

Voice

Voice Voice

Data

Sound

Video

Same Service,More Capacity

Many Services,More Capacity

MHz

1G 3G2G

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3052 x 20< 5Full

26-2 x 20

> 80

< 20

< 5

Licensesgranted

Full2352 x 15

19-2 x 15Some

restrictions1652 x 10

Limited13-2 x 10

Mbps/km² 1)UnpairedPaired

3G Service Capability

TrafficCapacity

Operator SpectrumScenario [MHz]

1) Uplink & Downlink/Urban sector/cell Ø = 0.6 km; Spectral Efficiency 180 kbps/MHz cell

3G Operator Spectrum Scenarios

Urban sector needs 20 – 30 Mbps /km² (5000 users/km², Ø = 100 – 300 kbps)

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n Mobile radio access networks are designed to meet certain maximum requirements for grade of mobility and range

n WLANs are designed for high data rates, low ranges and generally low mobility

20 155 Mbps

Indoor

Pedestrian

High SpeedVehicular

Rural

Mobility & Range

Personal Area

VehicularUrban

BRANHiperaccess

IEEE 802.11a

BRANHiperlan2

0.5 2

GSM

DECTBlueTooth

Fixed urban

Total data rate per cell

3G/UMTS

Wireless must trade-off betweendata throughput, mobility and range

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WLAN and 3G will be complementary

• WLAN provides a viable cordless data solution for quasi stationary use:– for corporate and campus scenarios – for nomadic (business) users in the public hotspot environments

• The coupling of WLAN and cellular should be as „soft“ as possible in order not to overburden the individual systems

• Economies of scale rely on mainstream WLAN technology;proprietary solutions destroy the power of the embedded base

• WLAN provides a viable cordless data solution for quasi stationary use:– for corporate and campus scenarios – for nomadic (business) users in the public hotspot environments

• The coupling of WLAN and cellular should be as „soft“ as possible in order not to overburden the individual systems

• Economies of scale rely on mainstream WLAN technology;proprietary solutions destroy the power of the embedded base

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The Next Step:Frequency plan for the 2.5 GHz band

FIXED, MOBILE, Radiolocation

2400 2500 2600 2700

IMT 2000

2450

Broadcasting Satellite

MSS MSSRadio AstronomyRadiolocation

2520 2670 2690

MSS

2483,5

FIXED

The actual situation

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MHz 2 500 2 690

Scenario 3Scenario 4

Scenario 1Scenario 2

Scenario 5Scenario 6Scenario 7

Scenario 3

Scenario 4

Scenario 1

Scenario 2

Scenario 5

Scenario 6

Scenario 7

FDD UL (internal) TDD

TDD

TDD

TDD

TDD

FDD UL (internal)

FDD UL (internal)

FDD DL (internal)

FDD DL (internal)

FDD DL (internal)

FDD DL (external)

FDD DL (external)

FDD DL (external)

FDD DL (external)

FDD DL (external)

UMTS-Forum as a discussion platform:

finding the optimal solution for customer, operators and supplier

Agreed generic scenarios for the Band 2 500- 2 690 MHzfrom ITU-R Recommendation M.1036-2

Frequency discussion in the 2.5 GHz band

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Spectrum Requirement Calculationsfor Systems beyond IMT-2000

1. The Database model • Forecast for future services and customer behaviour

• User density related to environments (e.g. urban, rural)• Service and traffic characteristics

• Infrastructure and technology parameters

2. The methodology• Packet switched services

• Terrestrial and satellite coverage• Single and hierarchical cell layers

• Specific 3G calculations and simulations

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Technical

Characteristics

Map customers request

onto Radio Access Technology

Economical

Framework

Estimation frequency resources

per Radio Access Technology

Distribution

Functions

Spectrum

requirements

Market of Mobile

Communication

Calculation Method for Spectrum beyond IMT-2000

Architecture of the envisaged MIND spectrum calculation methodology

Sou

rce:

MIN

D P

roje

ct

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Learnings of the UMTS Forums work on Spectrum Calculations

1. In years 2005-2010, Speech services will need all 2G band allocations .1. In years 2005-2010, Speech services will need all 2G band allocations .

2. The IMT-2000 Core Bands are sufficient to offer mobile multimedia services up to the year 2005 and beyond.

2. The IMT-2000 Core Bands are sufficient to offer mobile multimedia services up to the year 2005 and beyond.

3. Between the years 2005 - 2010, additional spectrum in the order of 190 MHz needs to be designated.

3. Between the years 2005 - 2010, additional spectrum in the order of 190 MHz needs to be designated.

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Spectrum Issues

• Spectrum Allocations outside IMT-2000 bands lead to industry fragmentation

• Insufficient Spectrum per Operator impacts its market success

• Non-harmonised Spectrum plans cause co-ordination problems and spectrum loss

• Spectrum Allocations outside IMT-2000 bands lead to industry fragmentation

• Insufficient Spectrum per Operator impacts its market success

• Non-harmonised Spectrum plans cause co-ordination problems and spectrum loss

Learnings:

Suggestions:

• IMT-2000 Deployments in IMT-2000 bands only

• Combine paired and unpaired spectrum:WCDMA + TD-SCDMA complement each other

• Equal partitioning of spectrum per Operator:2 x 15 MHz paired and 5 MHz unpaired Minimum

• Long Duration of Spectrum license ~ 20 years

• IMT-2000 Deployments in IMT-2000 bands only

• Combine paired and unpaired spectrum:WCDMA + TD-SCDMA complement each other

• Equal partitioning of spectrum per Operator:2 x 15 MHz paired and 5 MHz unpaired Minimum

• Long Duration of Spectrum license ~ 20 years

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Conclusions

• The UMTS Air Interface is more efficient than 2G - in particular formixed Voice and Data – lower costs!

• The UMTS Air Interface is more efficient than 2G - in particular formixed Voice and Data – lower costs!

• Harmonized spectrum important for roaming and large economy of scale

• Harmonized spectrum important for roaming and large economy of scale

• UMTS network planning for mixed Voice & Data• UMTS network planning for mixed Voice & Data

• UMTS attracts the Market Players if open standards – not only forallocated spectrum – are agreed

• UMTS attracts the Market Players if open standards – not only forallocated spectrum – are agreed

• WLAN integration could play a catalytic role for subscriber growth• WLAN integration could play a catalytic role for subscriber growth

• UMTS-Forum SAG levels the interests of customer, operators and supplier

• UMTS-Forum SAG levels the interests of customer, operators and supplier

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For further information please contact:

UMTS Forum SecretariatRussell Square House10 - 12 Russell Square London WC1B 5EEUnited Kingdom

Tel.: +44 20 7331 2020Fax: +44 20 7331 2040

E-Mail: info@umts-forum.org

www.umts-forum.org

With Compliments