scalable umts overview
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Scalable UMTS Optimal solution for refarming fragmented GSM spectrum
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Scalable-UMTS: accelerating GSM refarming
S-UMTS
UMTS/HSPA+ in and bandwidths
Maximizes the utilization of existing UMTS/HSPA+ spectrum
Maintains coverage and spectral eiciency
Broad industry support for standardization
Enables refarming of fragmented GSM spectrum
Squeezes-out additional or carrier from existing contiguous 15 or 10 MHz allocations
Same link-budget as UMTS/HSPA+; Voice and data capacity scales with bandwidth
Candidate feature in 3GPP Rel. 12
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GSM refarming challenge - non 5MHz fragmentsRepresentative examples of 900 MHz Spectrum
India (Delhi)
Czech Republic
Brazil
1.8 3.6 1.4 3 4.4 2.8 2.4 1.2 2 MHz
China
MHz
4.1 4.1 4.1 2 2 2 2 2 MHz
(Spectrum is allocated based on geography)
Operator 1
Operator 2
Operator 3
19 6
1.5 2.5 2.5 2.5 2.5 2.5 MHz11 10
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S-UMTS: UMTS/HSPA+ in
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Maintains coverage, spectral eiciency & voice quality
Same coverage
Same link budget*
S-UMTS
Full UMTS
* When using same spectrum
Same spectral eiciency & voice quality
Same Coverage*
Capacity scales with bandwidth
Same signaling overhead percentage
Less UE implementation complexity
Uses same voice codecs
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S-UMTS enables refarming of all GSM spectrum
UMTS
UMTS
Full UMTS Carrier(900 or 2100 MHz)
UMTS
UMTS S-UMTS
GSM
Full UMTS Carrier
5 MHz
5 MHzThrough HSPA+ multicarrier
Stand-alone WCDMA/HSPA+
Eventually, migrate fully to UMTS/HSPA+
Rapidly launch UMTS/HSPA+, without waiting for full clearing(while continuing to support GSM traic)
Allows use of
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Maximizes the utilization of existing UMTS/HSPA+ spectrum
10 MHz
4.2 MHz 4.2 MHz
10 MHz
4.2 MHz
UMTS
1.05 MHz
Additional Carrier
Additional Carrier
Full UMTScarrier
Full UMTScarrier
Full UMTScarrier
15 MHz
4.2 MHz 4.2 MHz 4.2 MHz
Full UMTS Carrier
Full UMTS Carrier
Full UMTS Carrier
UMTS
15 MHz
2.1 MHz4.2 MHz
10 MHz
Today With S-UMTS
15 MHz
Full UMTScarrier
Full UMTScarrier
Full UMTScarrier
Full UMTScarrier
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Launch 3G even with only small amount of spectrum
Additional use cases
Many more
GSM GSM
Full UMTS Carrier S-UMTS
Femto onlyMacro Network
Full UMTS Carrier S-UMTS
Traditional services M2M Only
Especially useful for emerging markets and areas where operators dont have enough spectrum
Allows oering dierentiated QoS/features suitable to M2M services
Provides suicient capacity, and data rates
Dedicated carrier for M2M services
Dedicated carrier for FEMTO deployments
S-UMTS
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Supported by
S-UMTS standardization industry support
Live over-the-air demoQualcomm and Huawei joint eortBarcelona
25 28 February 2013
Candidate feature in Rel. 12
China Unicom Huawei HiSilicon
Telefonica Ericsson ST Ericsson
Qualcomm
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