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February 24, 2016

Level Setting the Road to HetNet

Mobile World Congress

Gordon MansfieldVice President – RAN & Device Design, AT&T

2

The Road to Densification

Carriers have different starting points

Level Setting Demand HetNet Transformation

Dense Urban, Urban, Suburban, Rural

Macro, Micro, Pico

Projected demand requires capacity

Capacity & Speed triggers

Demand drives operators to acquire spectrum, densify and consider unlicensed

options

Yesterday – a mixture of solutions

Tomorrow – HetNet blending cellular, WiFi, and

customer experience

Natural transition to 5G

©2016 AT&T Intellectual Property. All rights reserved.

Level Setting

Macro Sites

Densification of Established Grid

Height

>70’ 20-70’ Indoors

Radius 0.5-20 mi

<0.5 mi

variesPower >40

W20W-1W 1W-50mW

Macro Micro/Pico Micro/Pico

3

Outdoors

Small Cell term is being used to mean many things – the best representation of the term is below the

clutter and indoor

Network density is important for network capacity

• Operators will design their networks with a mix of macro and

small cells • Densification will occur from the

outside-in• A blend of macro-micro-pico below

the clutter will emerge

©2016 AT&T Intellectual Property. All rights reserved.

HETNET

• Public Cellular• Enterprise

Cellular• Enterprise WiFi

Funnel

• CapEx• OpEx• Cycle Time

$$$

• Layers• Capacity• Transport

Management

Yesterday

Femtocell &

WiFi

Repeaters & WiFi

Home office /Small office

CommercialRepeaters

(passive)

SmallCells & WiFi

MacroDAS

(3rd Party Owned)

DAS(Operator Owned)

Tomorrow(HetNet)

Macro(outdoor)

MicroCRAN

PicoLow Power / Low Capacity

MicroLow Power /

Higher Capacity

WiFi

DAS

Landscape ……..the Road to HetNet

Densifying outside to inside

Considerations Yesterday Tomorrow

A blend of macro, micro, pico Cellular and WiFi

Convergence4©2016 AT&T Intellectual Property. All rights reserved.

--Macro--

Optimize additional carrier deployments

--Micro--

Drop below the clutter

Cellular and WiFi Convergence

--Pico--

Cellular and WiFi Convergence

Enterprise solutions

Contiguous Spectrum,

Densification,LTE-U/LAA

Why Small Cells?

Macro /WiFi

Cove

rageCa

pacit

y Urban Micro/Pico Densification

Spee

d

Strongest overall footprint Densification Core Coverage w/ rural roaming

Micro/PicoWiFi

Unlicensed

Network density

+

Balanced low/high Spectrum

=

Surgical densification over next 2-3 years

Carrier AddsMacro / Micro

5

IndoorsMacroMicro/Pico Micro/PicoOutdoo

rs

©2016 AT&T Intellectual Property. All rights reserved.

6

Densification Driven by Spectrum Exhaust

A blend of macro, micro, pico Licensed and unlicensed convergence

Ur-ban

Suburban

Rural

Capacity SolutionsMorphology of Densification

Urban Solution: Micro/Pico cells

Suburban Solution: Macro/Micro

Spectral assets• Grow LTE carriers

DensifyMacro:• Sector splits• High band

densification

Micro/Pico solutions:• Outdoor below the

clutter• Indoor solutions• LTE

Licensed/Unlicensed

Rural Solution: Macro cells

©2016 AT&T Intellectual Property. All rights reserved.

7

Laying a Foundation for 5G

Densification HetNet Transformation to 5G

Demand drives operators to acquire spectrum, densify and consider unlicensed options Macro-Micro-Pico

Laying a foundation for 5G transformation

Blending cellular, WiFi, and customer experience

Mobile Video

Cloud & Security

IoT

Global

LTE / WiFi

HetNet

Home

Monitoring

Car

Equipment

Traffic

Telehealth

Meters

FitnessSoil

Retail Tracking

Lighting

©2016 AT&T Intellectual Property. All rights reserved.

Questions?