lte deployment scenarios - afralti · 2019. 9. 20. · 900 mhz gsm. 800 mhz eu digital dividend....
TRANSCRIPT
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LTE Deployment Scenarios
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Agenda
• Early Adopter Deployment Scenarios
• Possible Deployment Scenarios
– Service Deployment – Network Deployment
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Early LTE Adopters Their Rationale
New Radio Spectrum Allocation
3G Capacity Saturation
LTE mandated in License Conditions
CDMA Evolution Challenges
WiMAX Evolution Challenges
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T-Mobile Germany
• Spectrum
– FDD LTE
– 2 X 10 MHz
– 800 MHz (Band 20)
• Devices
– LTE-only Fixed Router
• Commercial Service
– Initially, only rural
– DSL-like service offering
– April 2011
2600 MHz LTE
2100 MHz HSPA
1800 MHz GSM, LTE (future)
900 MHz GSM
800 MHz EU Digital Dividend
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Telia Sonera
• Spectrum
– FDD LTE
– 2 X 20 MHz
– 2600 MHz (Band 7)
• Devices
– USB Stick with LTE/HSPA/EDGE
• Commercial Service
– December 2009
2600 MHz LTE
2100 MHz HSPA
1800 MHz GSM
900 MHz GSM
800 MHz EU Digital Dividend
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NTT Docomo • Spectrum
– FDD LTE – 2 X 5 MHz – 2100 MHz (Band 1)
• Devices – USB-stick with LTE/HSPA – Modem Card – Wifi-LTE router
• Commercial Service – December 2010 – Mostly Urban Coverage
2100 MHz HSPA, LTE
1700 MHz HSPA
1500 MHz
Japan 800 MHz HSPA
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Verizon Wireless • Spectrum
– FDD LTE
– 2 X 10 MHz
– 700 MHz (Band 13)
• Devices
– USB Stick with LTE/EVDO
– Smartphones (CSFB on CDMA)
• Commercial Service
– December 2010 (Launch)
– Q4-2013 (Nationwide)
1700/2100 MHz LTE (capacity in future)
1900 MHz CDMA
850 MHz CDMA
700 MHz LTE (coverage)
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Metro PCS
• Spectrum
– FDD LTE
– 2 X 5 MHz or 2 X 3 MHz
– AWS (Band 4) and 1900 MHz (Band 2)
• Devices
– LTE + CDMA dual chip phones
• Commercial Service
– September 2010
1700/2100 MHz CDMA, LTE 1900 MHz CDMA, LTE
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Summary Carrier Initial LTE Future LTE Devices Multi-mode
Support
2600 (band7) 1800 (Band 3) 800 (Band 20)
USB-sticks HSPA, GSM
2100 (band 1) 800 (Bands 18/19) 1700 (Band 9) 1500 (Bands 11/12)
USB-sticks HSPA, GSM
800 (band 20) 1800 (Band 3) 800 (Band 20)
Modem-box None (launch) HSPA, GSM (later)
700 (band 13) AWS (Band 4) USB-sticks CDMA2000
AWS (band 4) 1900 (band 2)
Dual-chip smartphones
CDMA2000
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Service Deployment
• Data-only services on LTE
• Data-only services on LTE with possible handover to 2G-3G
• Voice and data services using CSFB
• Voice and data services using VoLTE on IMS
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SMS & Voice Service Roll-out
LTE Launch Data-only Devices
Service Roll-out Smartphones
Mass Market Full-range Devices
Network Optimization
SMS via “SMS- only” SGs
SMS via “SMS- only” SGs
SMS via “SMS- only” SGs
SMS via “SMS- only” SGs
SMS via “Full- CSFB” SGs
Voice & SMS via “Full-CSFB” SGs
Voice & SMS via “Full-CSFB” SGs
Voice & SMS via “Full-CSFB” SGs
IMS VoLTE with SRVCC to 2G/3G
IMS VoLTE with SRVCC to 2G/3G
IMS VoLTE with SRVCC to 2G/3G
IMS VoLTE and 3G with SRVCC to 2G
IMS VoLTE and 3G with SRVCC to 2G
LTE data-only devices require SMS connectivity for OTA activation and configuration CSFB may be required long-term to support CSFB-only inbound roamers
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LTE Voice Deployment Strategies
LTE
2G/3G
LTE 3G
2G
LTE 3G
2G
LTE 3G
2G
Step 1: Spotty LTE Coverage: CSFB across the 2G/3G coverage area
Step 2a: VoLTE Launch: UMTS PS across 2G/3G coverage area
Step 2b: VoLTE Launch: SR-VCC across 2G coverage area
Step 3: Full VoLTE Coverage Target Solution New terminals use LTE only Legacy terminals on legacy networks
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Network Deployment
• Spectrum
– New spectrum dedicated to LTE
– Refarming existing 2G/3G Spectrum
• Network
– Overlay Standalone LTE
– Dual LTE-2G/3G Core Network
– Single LTE-2G/3G Core Network
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Overlay Standalone LTE Network
eNodeB S-GW P-GW
PCRF MME
IMS
HSS
HLR
SGSN GGSN
MSC UTRAN
LTE
2G/3G GERAN
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The existing 2G/3G nodes will see the LTE/EPC nodes as other 2G/3G nodes. All adaptations for interworking are made in
the LTE/EPC side alone. Can interwork with pre-relase 8 SGSN.
E-UTRAN S-GW
MME
PDN
HSS/HLR
UTRAN GERAN SGSN
S1-MME
S1-U
S11
S6a
SGis
Gn
Iu-PS/Gb
P-GW S5
Gr
Gn
Dual LTE-2G/3G Core Network Option A : TS 23.401 Annex D Method
LTE
2G/3G
2G/3G/LTE
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Dual LTE-2G/3G Core Network Option B : S4 SGSN
E-UTRAN S-GW
MME
PDN
HSS/HLR
UTRAN GERAN SGSN
S1-MME
S1-U
S11
S6a S3
SGis
Iu-PS/Gb
P-GW S5
S4
Gr/S6d
The S4 SGSN exposes S3 & S4 interfaces to the LTE core. Support for direct tunelling between the RNC and S-GW (S12 IF)
LTE
2G/3G
2G/3G/LTE
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Single LTE-2G/3G Core Network
E-UTRAN S-GW/ P-GW/ GGSN
MME/SGSN
PDN
HSS/HLR
S6a
UTRAN GERAN
S1-MME
S1-U
S11
SGis/Gi
Iu-PS/Gb
LTE
2G/3G
2G/3G/LTE
S12
Greatly simplified network, but entails a single-vendor strategy
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Comparative Analysis
Dual (Option A) Dual (Option B) Single
Technical Readiness Yes Vendor-specific Vendor-specific
Future Evolution No Yes Vendor-specific
2G/3G Network Upgrade No Yes Possible
Impact on Vendor Strategy
No Yes Yes
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THANK YOU
Slide Number 1AgendaEarly LTE AdoptersTheir RationaleT-Mobile GermanyTelia SoneraNTT DocomoVerizon WirelessMetro PCSSummaryService DeploymentSMS & Voice Service Roll-outLTE Voice Deployment StrategiesNetwork DeploymentOverlay Standalone LTE NetworkSlide Number 15Slide Number 16Single LTE-2G/3G Core NetworkComparative AnalysisSlide Number 19