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The Convergence of DAS, LicensedSmall Cells, Wi-Fi and Macrocells: What Tomorrow’s HetNets Could

Look Like

Kashif ShakilHead of Small Cells and WiFi Solutions

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10 Mbps

1 Mbps

0.1 Mbps

@

SMS >10 Mbps

Performance relevant to the end usereverywhere and inside buildings

App Coverage

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Het net1

2 3

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Uncoordinated Cells

Split Spectrum

Basic Mobility

Coordinated Cells

Shared Spectrum

Full X2 Mobility, Load balancing

CoMP Cells

Common Baseband

CoMP, Combined cell

Add 9 Cells for 2X Capacity Add 5 Cells for 2X Capacity Add 3 Cells for 2X Capacity

TEXT TEXTLimited User ExperienceHigh TCO

Good User Experience50% Reduced TCO

Great User Experience70% Reduced TCO

Coordination reduces TCO

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Het net toolbox

DAS RBS RRU eDAS RBS RRU

AIR

microRRU

microRBS

Outdoor WiFi AP

Pico RBS

Dot Indoor WiFi AP

Multiple sets of tools in het net toolkit available today

Indoor

Outdoor

WDM LoS nLoSCompact

BB

Pico GW

SON/O&M, Site Solution, Small Cells as a Service , Deployment, Design and Optimization

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Indoor Solutions: Use Case View

Dense Urban / Residential(1.Poles, 2.Roof / Building Mount, 3.Street Furniture)

Small / Med. Business

Mall / Airport / CampusStadium

Large EnterpriseHigh Rise Building Warehouse / Manufacturing

OUTDOOR VENUES

INDOOR ENTERPRISESMB

RRU/microRRU

ODAS

Outdoor WiFi

Micro RBS micro

RRU

AIRDASDot

Indoor WiFi

Micro RBS

Pico RBS

microRRU

Pico RBS Dot

Indoor WiFi

Indoor WiFi

Micro RBS

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Coverage

Capacity

Deployability

Performance

Ease of O&M

Features & Operator Services

Multiple Operator Support

DASDot

Pico RBS0

1

2

3

4

5

Scor

e

Factors:• Level of coverage• Traffic carrying capacity• Simplicity of deployment• Performance• Ease of O&M• Support for features and

Operator services (like VoLTE, eMBMS etc.)

• Multiple operator deployment support

Indoor Solutions: Capability View

Pico RBS: Small cell with integrated basebandDot: Small cell with centralized baseband

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Indoor Solutions: EconomicsTCO: CAPEX, Deployment cost, 5 year OPEX, Multiple Operator Network

0

5

10

15

20

< 50k 50k 100k 250k 500k >500k

Building size (sq ft)

Rel

ativ

e T

CO

DAS Dot P ico RBS

CostPe

rfor

man

ce

PicoDAS

Dot

Cost vs. performance of indoor solutions (250k sq ft building)

Choice of solution depends on combination of factors: use case, cost, capabilities, vertical and performance

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Solution Positioning

Num

ber

of

build

ings

Building size

Outside-in Pico DASDot

Smal

l to

med

ium

Med

ium

to

Larg

e

Larg

e

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Integrating WiFi into Het net1. Common hardware for WiFi and 3GPP: Available2. Network selection and traffic steering: On-going

Standard/Feature Benefits Limitations

ANDSF Access network discovery and selection Requires device support

Hotspot 2.0/ Passpoint, Next Gen Hotspot (NGH)

Secure seamless roaming onto Wi-Fi, best AP selection

Requires device support Device-driven

RAN 2 Optimized network selection Early stage Requires device support

IP Session Mobility Application/session continuity Not available yet Requires device support

Access Selection Network selection based on historical performance

Not real-timeNot per device

Real-Time Traffic Steering

Network selectionbased on real-time 3GPP and Wi-Fi network status

Not in standards today

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Real-time Traffic Steering between 3GPP and WiFi

Always best connected in real time

Macro

Small Cell 3GPP+Wi-FiWi-Fi

Visibility of user’s mobile requirements as well as source and destination radio access networks dynamically determines connections

Mobile connection is steered between 3GPP and Wi-Fi

Each mobile device benefits from connection to the best radio access technology to address their requirements

0 10 20 30 40 50 60 70 80 90 1000

10

20

30

40

50

60

70

80

Y coordinate

Thr

ough

put

[Mbp

s]

Throughput TC 1.1(2013-12-10): Feature off

WiFi 95% confidence interval

WiFi meanLTE 95% confidence interval

LTE mean

0 10 20 30 40 50 60 70 80 90 1000

10

20

30

40

50

60

70

80

Y coordinate

Thr

ough

put

[Mbp

s]

Throughput TC 1.3 r03 B (2013-12-10): Two-way traffic steering, from LTE to WiFi

WiFi 95% confidence interval

WiFi meanLTE 95% confidence interval

LTE mean

OFF ON

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Collaboration Opportunities

• Technology:– Interoperability (multi-

vendor interfaces)– Converged solutions

• Beyond Technology– Partnerships (esp. for site

acquisition)– Value Creation with new

Services– Business model innovation

D-RAN with passive DAS

Ericsson Live Events

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Tomorrow’s network: Het netImproved and densified

macro

Micro RRU forming high capacity D-RAN

Micro RBS for hot-spot densification

Pico RBS provides in-building coverage to SM Buildings

Dot for deep in-building coverage

DAS in large venues & buildings

* WiFi integrated with DAS / small cell / Dot or stand-alone

Front-haul

ABC & effortless experience

Macro

DAS