The document discusses the growing demand for mobile data and need for new wireless solutions to supplement macro cell networks. It introduces small cells, distributed antenna systems (DAS), and Wi-Fi as technologies that can provide in-building wireless coverage and offload traffic from the macro network. The document also outlines AT&T's focus and initiatives in deploying these solutions to meet customer needs and network requirements.

1. Small Cell, DAS, Wi-Fi
the New Wireless Frontier
© 2013 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property.
Lorna Slott
Area Manager Midwest Region, Antenna Solutions Group
AT&T Services, Inc.
lorna.slott@att.com
September 19, 2013

2. Network Business
Drivers
Catalyst for In-
Building Wireless
Small Cells & Wi-Fi
offload
© 2013 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property.2

3. Network Business Drivers
© 2013 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property.
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2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
US Mobile
Data Traffic
petabytes

4. Demand More More!
© 2013 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property.
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US Mobile
Data Traffic
petabytes
 Mobile data volume growing exponentially
 Smartphone sales outnumber PC sales
 Congested macro networks
 Wireless providers looking for more tools to supplement the macro network

5. Tremendous Wi-Fi Growth
5
19K
21K
27K
30K 32K
2008 2009 2010 2011 2012
Venues
20M 85.5M
382.1M
1.23B
2008 2009 2010 2011 2012
Connections
• In 4Q12, 705.5M connections were made to the
AT&T Wi-Fi Network – More than 5000
connections per minute
• +40% connections made in 4Q12 from mobile
smartphone and tablet devices versus 2011.
2.7B
• Since 2008, expanded Wi-Fi to more types of
venues – including hotels, restaurants, retail
locations, stadiums, airports, universities, and
hot zones
• In 4Q12 mobile devices carried +3x more
data traffic than 4Q11.
© 2013 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property.

6. Network Business Drivers
© 2013 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property.
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AT&T is one of the
leading smartphone
providers in the U.S.
1Q'10 2Q'10 3Q'10 4Q'10 1Q'11 2Q'11 3Q'11 4Q'11 1Q'12 2Q'12 3Q'12 4Q'12 1Q'13 2Q'13
35% 36%
39%
43%
46%
50%
53%
57%
59%
62% 64%
67%
72% 73%
AT&T Smartphone Penetration

7. © 2013 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property.
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Catalyst for In-Building Wireless
• Smartphone adoption – Nearly 75% of AT&Ts postpaid
customers have a smartphone. Typical smartphone user
consumes 50X more data.
• LEEDS – RF cannot penetrate window coating in Leadership
in Energy and Environmental Design buildings.
• Wireless-only households & workplaces – Wireless penetration now exceeds
100%
• Municipal Public Safety requirements - National Fire Protection Association codes
mandate emergency first responder radio coverage in all commercial and large
office buildings.
• Dense urban – Ensure coverage in office buildings above the 10th floor.
• Municipal restrictions – Due to zoning restrictions may be difficult to expand
macro network.

8. Network Business Drivers
8
Nearly 80% of worldwide
data connections initiate
inside a building
RF Design strategy must
transition from an outside-
in to inside-out
methodology
© 2013 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property.

9. AT&T’s Antenna Solutions Group
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• AT&T’s Antenna Solutions Group
(ASG) is responsible for
extending the capabilities of
AT&Ts wireless network within
large public venues providing our
customers the best mobile
broadband experience
• Once the venue is under
contract, ASG will turn over
responsibility to AT&Ts Towers
group to market the system to
the other wireless carriers.
www.atttowers.com
© 2013 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property.

10. © 2013 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property.
Small Cell Comparison
Solution Description Technology # Users Cell
Radius
DAS Typically fed by a macro or micro base
station. High power, multi-frequency,
multi-carrier.
UMTS
HSPA+
LTE
Up to 1,800
users per base
station
Up to 3
miles
Wi-Fi A wireless access point connects a group
of wireless devices to an adjacent wired
LAN.
802.11b
802.11g
802.11n
Up to 200 users
per a 3-radio
access point
65 feet
Microcell Short-range base station used for
enhancing indoor and/or outdoor
coverage.
UMTS
HSPA+
32 to 200 users Up to ≈1
mile
Metrocell High-capacity, low power device that fills
in coverage holes within buildings.
UMTS
HSPA+
16 to 32 users 10,000 –
20,000
square feet
Picocell Typically used for indoor applications
such as office buildings, airports, and
malls.
UMTS 32 users Up to 750
feet
Femtocell A small, low-power cellular base station
typically used for a home or small
business.
UMTS 4-6 users 40 feet
10

11. High Level Architecture
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12. Small Cells Growth
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Small cells are anticipated to grow 2000%- from 3.2 million in 2012 to 62.4
million by 2016
© 2013 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property.
Source: http://www.smallcellforum.org/newsstory-small-cells-to-make-up-almost-90-percent-of-all-base-stations-by-2016

13. Small Cells
for your home, office and neighborhood
© 2013 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property.

14. Wi-Fi Offloading
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Many of AT&Ts smart phones will automatically
authenticate on AT&Ts Wi-Fi networks, benefits:
Customer
• Higher data rates
• Does not count towards wireless data cap
Venue Owner
• Potential to create custom “landing” page
• Custom applications
•Revenue opportunities through increased sales
Carrier
• Offloads traffic from macro network
• Better wireless spectrum utilization
• Wi-Fi per MB cost less than equivalent capacity on
macro network
Cisco forecasts that 46% of handset
& tablet traffic will be offloaded in
2017
Source: Cisco Visual Networking Index: Global Mobile Data Traffic Forecast Update, Feb 2013
© 2013 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property.

15. Thank-you!
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© 2013 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property.