LTE Deployment Scenarios

Agenda

• Early Adopter Deployment Scenarios

• Possible Deployment Scenarios

– Service Deployment – Network Deployment

Early LTE Adopters Their Rationale

New Radio Spectrum Allocation

3G Capacity Saturation

LTE mandated in License Conditions

CDMA Evolution Challenges

WiMAX Evolution Challenges

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

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

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

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)

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

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

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

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

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

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

Overlay Standalone LTE Network

eNodeB S-GW P-GW

PCRF MME

IMS

HSS

HLR

SGSN GGSN

MSC UTRAN

LTE

2G/3G GERAN

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

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

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

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

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