Qualcomm is elevating its role as a market leader by bringing breakthrough concepts to LTE’s evolution. We believe that the next significant performance leap will come from heterogeneous networks, or HetNets, which bring the network closer to the user through low-power nodes such as pico and femto-cells. LTE Advanced uses adaptive interference management techniques to further improve the capacity and coverage of these HetNets. There by, ensuring fairness among users and an enhanced mobile experience, especially for those users at the cell edge. LTE Advanced also introduces multicarrier to leverage ultra wide bandwidths up to 100 MHz, supporting very high data rates.

1. LTE Advanced
February 2012
1

2. LTE Has Strong Commitments
LTE NETWORK LAUNCHES
LAUNCHES NETWORK COMMITMENTS
LTE TDD LAUNCHED
TDD LAUNCHES TDD DEVICES ANNOUNCED
GROWING DEVICE ECOSYSTEM
DEVICES VENDORS
2 Source: www.gsacom.comJan 2012

3. Qualcomm is Committed to Continued
LTE Evolution
Screenshot from over the
over-the-air HetNet demo,
showing picocells range
expansion, within one
macrocell
STANDARDS INDUSTRY-FIRST INDUSTRY-FIRST
LEADERSHIP DEMOS LTE/3G CHIPSETS
 A main contributor to key LTE  MWC 2011: Live Heterogeneous  Commercial launch 4Q 2010
Advanced features Network Demo
 Major contributor for ITU IMT-  MWC 2012: Live Over-The-Air
Advanced submission HetNet Demo with Mobility
3

4. LTE Advanced—The Global 4G Solution
Small Cells Provide Next Performance Leap
Bring the network closer to user and leverage a Heterogeneous network topology
LTE Advanced Makes The Leap Bigger
It’s not just about adding small cells—need advanced interference management
Higher Capacity & Enhanced User Experience
Higher network capacity, better macro offload and higher data rates for all users
Qualcomm: LTE Advanced Leadership
Over-the-Air prototype network, design and standards leadership
4
Heterogeneous Networks/HetNets: macro network with added small cells like picocells

5. Qualcomm is a Leader in 3G and 4G
2012 2013 2014 2015+
Rel-8 Rel-9 Rel-10 Rel-11 & Beyond
LTE Leverages wider LTE LTE
and unpaired spectrum (FDD and TDD
Commercial) Advanced
Rel-7 Rel-8 Rel-9 Rel-10 Rel-11 & Beyond
HSPA HSPA+ HSPA+ HSPA+
(Future)
(Commercial) Advanced
CDMA2000
1X
1X Advanced
Rev A Multicarrier H/W Upgrade Phase - I Phase - II
EV-DO EV-DO Rev. B DO DO Advanced
(Commercial) Advanced (Future)
Commercial
5 Note: Estimated commercial dates. Created 02/08/2012

6. The Next Leap In Performance—Small Cells
Optimizations Makes the Leap
Adding small cells like
Picocells, Femtocells, and
Even Bigger—Smart HetNets
Remote Radioheads
Bring Network Closer to
Users—Small Cells
More Spectrum Better Techniques
New bands, Re-farming Such as higher order MIMO,
Aggregate TDD spectrum Smart Networks
How do we
get more
capacity?
Radio Link approaching theoretical limit
6

7. LTE Advanced Brings Different Dimensions
of Improvements—Most Gain From HetNets
Leverage wider Primarily higher
bandwidth data rates
Carrier aggregation across (bps)
multiple carriers and multiple bands
Leverage more radio Higher spectral
links, more antennas efficiency
Downlink MIMO up to 8x8, enhanced (bps/Hz)
Multi User MIMO and uplink MIMO up to 4x4
Leverage heterogeneous Higher spectral
network topology (HetNet) efficiency per
With advanced interference management coverage area
(low power picocells with adaptive resource partitioning (bps/Hz/km2)
and advanced receiver based devices)
7

8. 2.2X
LTE Advanced Hetnets
Higher Capacity, Enhanced User Experience, User Fairness
MEDIAN DATA
RATE
It’s not just about adding small cells
—LTE Advanced makes the leap bigger1
8 1By applying advanced interference management to HetNets

9. Increased Network Capacity and Enhanced
User Experience
2.8X
with Range Expansion
LTE Advanced
1.4X Picocell
LTE R8
LTE R8
1X
Macro Macro+ Macro+ Picocell
Only Picos Picos
Data Rate Improvement Picocell
Median downlink data rate1
Range Expansion
BETTER UTILIZATION OF SMALL CELLS
Assumptions: 4 Picos added per macro and 33% of users dropped in clusters closer to picos (hotspots) : 10 MHz FDD, 2x2 MIMO, 25 users and 500m ISD. Advanced
9 interference management: enhanced time-domain adaptive resource partitioning, advanced receiver devices with enhanced RRM and RLM1Similar gain for the uplink

10. Range Expansion Allows More Users to
Benefit From Small Cells
SIGNIFICANTLY BETTER MACRO OFFLOAD
Percentage of pico users1
RANGE EXPANSION
LTE R8
Range Expansion 82%
57%
37%
Small Cell
26%
12%
6%
Enabled By:
1) Adaptive Resource Partitioning1 2 4 10
2) Advanced Receiver Devices with
Interference Cancellation Number of Picos per Macro cell
Assumptions: TR 36.814, Macro ISD=500m, 100 antenna downtilt 25 UEs per Macro cell, uniform random layout, 10 MHz FDD, 2x2 MIMO. 1And enhanced RRM and
RLM to allow handover to weak cells, to maintain reliable link with weak cells, and to provide accurate feedback with resource partitioning. Standards name eICIC:
10 Enhanced inter-cell interference coordination 1For uniform, random user distribution

11. Ensures Ubiquitous Broadband Experience
EVEN WHEN SMALL CELLS CANNOT BE PLACED AT OPTIMAL LOCATION
78%
with Range Expansion
with Range Expansion
1.7X
LTE Advanced
LTE Advanced
1.05X 38%
LTE R8
LTE R8
1X
LTE R8
Picocell
LTE R8
22%
Picocell
Macro Macro+ Macro+ Macro Macro+ Macro+
Only Picos Picos Only Picos Picos
IMPROVES ‘WORST’ SIGNIFICANTLY HIGHER
Picocell
CELL EDGE USER1 % OF USERS WITH >1 Mbps
Assumptions: 4 Picos per Macro randomly dropped within macro coverage, see 3GPP R1-101509. Based methodology in TR 36.814: 10 MHz FDD, 2x2 MIMO, 25
11 users and 500m ISD . Worst user is defined as 5 percentile user, typically the Cell edge user 1Typically cell edge users, similar gain experienced for the uplink

12. Adaptive Interference Management Adapts to
Network Changes And Actual Network Load
Adapts to typically uneven load that changes with time and location
Heavy Load
Medium Load
Light Load
Adapts to added nodes, like Picocells
Provides network load balancing
Benefits all Hetnets—but necessary for dense HetNets
12 1Advanced adaptive interference management : enhanced time-domain adaptive resource partitioning with enhanced RRM/RLM and advanced receiver devices

13. THE SECRET SAUCE:
ENABLES RANGE EXPANSION THAT ALLOWS MORE USERS TO BENEFIT FROM SMALL CELLS
ADAPTIVE ADVANCED FULL
RESOURCE RECEIVER BACKWARD
PARTITIONING DEVICES COMPATIBILITY1
13 1With almost blank subframes

14. Adaptive Resource Partitioning:
TIME
MACRO MACRO MACRO
PICOS PICOS PICOS
14

15. ADVANCED RECEIVER DEVICES WITH
INTERFERENCE CANCELLATION
(CANCELLING OVERHEAD CHANNELS1)
TO DISCOVER TO ENABLE HIGHER TO ENABLE FULL
SMALL CELLS DATA RATES RANGE EXPANSION
15 1Device interference cancellation cancels overhead channels such as common reference signal(CRS)

16. Today: Our Testbed
Tomorrow: Your Network
16

17. Qualcomm’s LTE Advanced Testbed
 Over-The-Air HetNet
 Live since March 2011
 Multiple macrocells and picocells in a co-channel deployment
 Demonstrating e.g. pico discovery and range expansion with mobility
Evaluating the design and features
EVALUATING THE DESIGN AND FEATURES TO REALIZE
to realize the full benefits of heterogeneous networks
17
FULL BENEFITS OF HETEROGENEOUS NETWORKS

18. LTE
Carrier #3
LEVERAGE WIDER LTE
Carrier #1
Aggregated PRIMARILY HIGHER
LTE Up to
BANDWIDTH Carrier #4
LTE
Data Pipe 100 MHz DATA RATES
Carrier aggregation across Carrier #2
(bps)
multiple carriers and multiple bands
LTE
Carrier #5
CARRIER AGGREGATION
ENHANCES USER HIGHER PEAK AND LEVERAGES ALL
EXPERIENCE USER DATA RATES SPECTRUM ASSETS
(OVER 1 GBPS POSSIBLE)
18

19. Carrier Aggregation Leverages All Spectrum
Assets
Aggregation within band Supplemental Downlink
E.g. 2.6 GHz E.g. 700MHz
 Aggregate spectrum within a band
to create a fatter data pipe
 Aggregate across spectrum bands 10 MHz 10 MHz
 Aggregate more downlink capacity—
supplemental downlink (unpaired
Carrier #4
LTE
Carrier #3
spectrum)
Carrier #5
Carrier #2
LTE
Carrier #1
LTE
LTE
LTE
 Enhances heterogeneous
networks (multiple carriers)
Aggregated
Data Pipe
Pico Macro Pico
Carrier 2
Example: Carrier 1 used for wide area macro coverage, but also by picocells,
19 Carrier 1 carrier 2 used by all nodes, but with lower power around macrocell

20. Qualcomm: Continued Standards Leadership
 A leading contributor for LTE performance
definition in 20091
 Leader in several key LTE standards areas2
 A Main contributor to key LTE Advanced features
 Carrier aggregation, self-organizing network, relay, waveform
 Major contributor for ITU IMT-Advanced submission
 First company to show results satisfying IMT-Advanced requirements3
 LTE Rel-10 HetNet work item completed June 2011
 Enhanced inter-cell interference coordination (eICIC) work item completed in Rel-10
 Additional eICIC enhancement considered for Rel-11
Notes 1Based on pre-meeting contribution count for 3GPP RAN WG4 (in charge of performance requirements) . 2E.g. for femtocells and positioning across all working groups
and areas. Examples of features such as Mobility, access control, local IP access, system definition, security . 3for single point transmission results, also showed that that
20 Network-MIMO/CoMP techniques were not required to satisfy those requirements.

21. Common LTE FDD & TDD Chipset Platform
MODEMS & DATA CARDS SMARTPHONES & TABLETS
• 50+ designs by 25+ OEMs • Dual-Core CPU (28nm)
MDM 9200 • Commercial 4Q 2010 MSM 8960 • Superior graphics & multimedia
LTE • 100 Mbps DL/50 Mbps UL LTE • Integrated connectivity (WLAN, GPS,
MDM 9600 DC-HSPA+ DC-HSPA+/DOrB Bluetooth, FM)
LTE EDGE EDGE
DC-HSPA+/DOrB • MSM8960 launches in 2012
EDGE
• Handset & tablet launches in 2011
based on MDM9x00+MSM
Industry’s First LTE/3G Multimode Chipsets
21

22. Qualcomm: LTE Advanced Leadership
IT’S NOT JUST ABOUT ADDING SMALL CELLS
—LTE ADVANCED REALIZES FULL BENEFITS OF HETNETS
Significantly
higher capacity
(Range expansion)
Enhanced
user experience
Better macro
offload
Ensures
user fairness
A Leading Contributor Spearheading State-of-the-Art
to LTE Advanced Technology LTE Advanced
Standards Design Efforts OTA Network
22 Heterogeneous Networks /HetNets: macro network with added small cells like picocells

23. Questions? Connect with Us
www.qualcomm.com/technology
@Qualcomm_Tech
http://www.slideshare.net/
qualcommwirelessevolution
http://www.qualcomm.com/blog
/contributors/prakash-sangam
23

24. Additional Slides
24

25. Carrier Aggregation Enhances User
Experience
LTE
Up to 20 MHz Carrier #3
Up to 20 MHz LTE
Carrier #1
LTE Aggregated Up to
Up to 20 MHz Carrier #4
LTE
Data Pipe 100 MHz
Up to 20 MHz Carrier #2
Up to 20 MHz LTE
Carrier #5
LTE Multicarrier
Device
eNodeB
 Increased data rates and lower latencies for all users in the cell
 Can more than double bursty application capacity
 Data rates scale with bandwidth—over 1 Gbps peak data rate
 Aggregating 40 MHz to 100 MHz provide peak data rates of 300 Mbps to 750 Mbps1 (2x2 MIMO) and over 1 Gbps (4x4 MIMO)
1LTE R8 supports 4x4 MIMO, which enables 300 Mbps in 20 Mhz. Theoretically, LTE Advanced can support over 1Gbps peak data rates by aggregating at least 4 20
25 MHz carriers (up to100 MHz of spectrum) using 4x4 MIMO.

26. Adaptive Time-Domain Resource Partitioning
 Adapts to topology, load  Ensure fairness
and user distribution  Flexible and adaptive
 Mitigates interference partitioning options
Time Domain Partitioning Example Adaptive Partitioning Example
a.k.a enhanced inter-cell interference coordination 25% Semi static to macro and pico, 50% adaptive
Subframes reserved Blank Adaptive subframes,
for macro subframes served by pico or macro
Macro Macro
DL DL
Pico Pico
DL DL
Time-Domain Resources Time-Domain Resources
Subframes
reserved for pico
LTE R8 provides limited interference management; primitive X2-based—adaptive resource partitioning utilizes modified X2. Frequency partitioning is the only option for
asynchronous networks (Networks without GPS timing) 1Static and semi static allocation signaled to device. Enables flexible partitioning options, e.g. pico could also use
26
reserved macro subframes (without benefits of range expansion)

27. Advanced Receiver Devices with Interference
Cancellation Enable Full Range Expansion
Support Legacy Devices1
Continue to transmit overhead channels Legacy device cannot
in ‘almost blank’ frames utilize expanded range
(LTE R8/9)
New device can
Subframes reserved
for macro utilize full range
(LTE R10)
Macro
DL
Pico
DL
Time-Domain Resources
Example with no pico reserved subframes Small cell
Range expansion for new devices
Subframes not used by macro reduces interference
Advanced Receiver Devices2:
1) Discover small cell in ‘expanded range’
2) Enable higher data rates
3) Effectively expand small cell range
1Adding overhead channels such as synch, broadcast and common reference signal to ‘blank subframes’ to support legacy devices 2Device interference
27
cancellation cancels overhead channels such as such as synch, broadcast and common reference signal(CRS) to enable full range expansion.

28. Relays Extend Coverage and Improve
Capacity without Backhaul Expenses
1.8X Advanced
Relays use part of
macro capacity as
Interference backhaul
Management
(Range Expansion)
1X
Relay Node
RANGE
EXPANSION
Macro+ Macro+
Relays Relays
Picocell
MEDIAN USER
Downlink Data Rates
28
Assumptions: Results from 3GPP R1-094230; Based on methodology in R1-084026 10 MHz FDD, 2x2 MIMO UE, 10 Layer 3 Relays per Macro cell, uniform random layout.
Advanced interference management includes intelligent node association and adaptive resource allocation