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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
s 20
02
4
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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: [email protected]
www.umts-forum.org
With Compliments