Presentation by Gordon Mansfield of 5G Evolution at the Mobile World Congress 2017 in Barcelona.

1. © 2017 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property
1
5G Evolution
Mobile World Congress Feb 2017
Gordon Mansfield VP-ACCESS ARCHITECTURE& DEVICE

2. 5G – It’s not a DAY, It’s an EVOLUTION
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Summary take away
Summary
• 5G Evolution plans will pave the way to the next-generation of higher speeds for customers
• Not waiting until the final standards are set to lay the foundation
• “Data on our mobile network has increased about 250,000% since 2007” (Donovan Jan 2017)
• Greater speed and overall network performance brings huge opportunities
• Video, IoT, 4K video, AR/VR, smart home and cities, autonomous vehicles and much more
© 2017 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property

3. The Road to 5G
Today
Advanced MIMO
Collaborative RAN
Carrier aggregation
SON+
256QAM
FDD-TDD-CA
Device-to-Device
Fixed Wireless
4
Tomorrow
LTE
Advanced LTE Advanced Pro
5G Rel-15
Dual Connectivity
Unlicensed Spectrum
IoT
Enhanced CA
V2X
Massive/FD-MIMO
Shared broadcast
Low latency
Centralized BBU
Virtualized BBU
© 2017 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property

4. 2018
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RAN Hardware
RAN Software
Device
Transport
Core
1
2
3
4
5
1
Application Layer
The Network 5-Way Match …..
4 5
3
2
OAM
© 2017 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property

5. Roadmap to 1 Gbps
2016 Today Tomorrow
Pico Nodes / Unlicensed (LAA) Path 1Gbps
400
Mbps
200
Mbps
Licensed + LAA
256QAM
4x4 MIMO
4C CA
Licensed-only
256QAM
4x4 MIMO
Licensed-only
256QAM
2x2 MIMO mmWAVE
Shared
Unlicensed
Licensed
LTE PRO
• Improved densification management
• Dual connectivity
• FD-MIMO
• Higher order modulation
• Improved latency
• C-RAN and virtualization
• LTE-LAA
Next-Gen foundations
• Multi-gigabit speeds and high capacity
• Connectionless Massive IoT
• Ultra-Low Latency and high reliability
• Sub 6 GHz, mmWave and unlicensed bands in
concert
• Massive MIMO
• SDN/NFV based architecture
4
© 2017 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property

6. Future technology options
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1 Incremental LTE small cell
2 LTE-LAA small cells
LAA radios provide additional speed and
capacity
3 5G mmWave small cells
5G mmWave radios provide additional speed
and flexibility
4 5G NR / FD-MIMO
Macro tower upgrades for massive IOT and
mission critical applications, better performance,
and capacity
Macro tower and
surrounding
small cells
mmWave 3
LTE-LAA 2
4G LTE 1
1
Small Cell
5G NR (FD-MIMO)
4
© 2017 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property

7. 7
Voice Texting Email Web Music Video Internet Enhanced
Broadband
Massive
IoT
Mission
Critical
1G
2G
3G
4G
5G
Next generation mobile networks will enable enhanced broadband, a proliferation
of devices, and increased reliability
Industry Trends
© 2017 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property

8. 8
New Opportunities
Massive connectivity, higher speeds and lower latency will create opportunities with many new use
cases and transform how data and content is consumed
Smart cities
Industrial automation
Smart homes Connected hospital
Vehicle2X & connected cars
Smart grids
Wireless sensor networks
© 2017 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property

9. AT&T is Leading the Way
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Summary take away
Take Aways
• Driverless cars, Connected cities, AR/VR, Remote healthcare, IoT
• Low latency demands will push real-time communications to the edge
• Non-real-time demands must be centralized and virtualized
• Network transformation is more essential than ever
• Creativity and solid engineering will be required to make NR practical and deployable
• Current RAN architecture must transform to meet the needs for increased flexibility
Key Enablers
1. SDN
2. Big Data
3. Open Source
4. Improved spectral efficiency
5. Fiber broadband
© 2017 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property

10. 10
Questions?
© 2017 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property