1. QUALCOMM ATHEROS RESTRICTED – NDA
Qualcomm® VIVE™
with MU-MIMO
Launch date: April 3, 2014 (under embargo until 7:30am ET/4:30am PT)

2. 2QUALCOMM ATHEROS RESTRICTED – NDA
Qualcomm aims to improve mobile experiences everywhere
We are innovating on multiple fronts to better serve connected devices
More Efficient
Devices
Spectral
Efficiency
− Platform integration
− Quicker computing
− Better power and graphics
− Better use of existing spectrum
− 5GHz
− Small cells
− LTE in Unlicensed bands
− Access to more licensed spectrum
− Regulatory efforts
− New sharing models
− LTE Advanced
− MU-MIMO
− Network processing
More Efficient
WAN & LAN

3. 3QUALCOMM ATHEROS RESTRICTED – NDA
First wave of 11ac made Gigabit Wi-Fi possible
3x faster than 11n
− Up to 1.3 Gbps (3-stream)
− Wider channels (80 MHz)
− Data encoding (up to 256 QAM)
Mandatory 5GHz band
− More (and wider) channels
− Less interference
Lower power-per-bit
− Extends battery life
− Mobile devices communicate
more quickly and sleep longer
Qualcomm® VIVE™
Significant 11ac traction:
200+ mobile designs

4. 4QUALCOMM ATHEROS RESTRICTED – NDA
Second wave will make Wi-Fi networks more efficient than ever
Revolutionary features will have a major impact on connected mobile and CE devices
11ac ‘Release 2’ Features
(Optional, but certified by WFA)
MU-MIMO in 5 GHz band
4-stream configurations
Up to 160 MHz channels
Qualcomm® VIVE™
with MU-MIMO
Cellular expertise applied
to managing MU-MIMO complexity
Complete ecosystem
of networking, mobile,
computing, CE and
Automotive solutions

5. 5QUALCOMM ATHEROS RESTRICTED – NDA
Single-User MIMO
Serves one device at a time
Multi-User MIMO
Multi-user beamforming (MUBF) serves
multiple devices simultaneously
Spatial re-use multiplies available capacity (2-3x)
Reduces wait time for all clients

6. 6QUALCOMM ATHEROS RESTRICTED – NDA
MU-MIMO for increasingly crowded home networks
The average home has 7 connected devices – projected to be >20 devices by 2020
MU–1sMU–1s
Improves throughput, latency and
power consumption for all clients
11ac devices with MU-MIMO
o Router speaks to groups of MU devices
o Up to 3 simultaneous MU devices per group
Legacy devices (single-user MIMO)
o Still served individually by the router
o Benefit from increased airtime availability

7. 7QUALCOMM ATHEROS RESTRICTED – NDA
Benefits of Multi-User MIMO (vs Single-User)
2.5x Improvement in UDP throughput per client (shown at Close Range – MCS9/256QAM)
SU-MIMO
(Three 1-stream clients)
4x4APCapacity(Mbps)
350
(1-stream @ MCS9)
Each user gets
~117 Mbps
(350÷3)
1s
SU
1s
SU
1s
SU
MU-MIMO
(Three 1-stream clients, in an MU group)
910
(3-streams @ MCS9)
Each user gets
~303 Mbps
(910÷3)
1s
MU
1s
MU
1s
MU
4x4APCapacity(Mbps)
1s
MU
1s
MU
1s
MU
1s
MU
1s
MU
1s
MU
Time Time

8. 8QUALCOMM ATHEROS RESTRICTED – NDA
MU-MIMO
(Three 1-stream clients, in an MU group)
450
(3-streams @ MCS4)
Each user gets
~150 Mbps
(450÷3)
1s-MU
1s-MU
1s-MU
170
(1-stream @ MCS4)
Each user gets
~57 Mbps
(170÷3)
1s-SU 1s-SU 1s-SU
SU-MIMO
(Three 1-stream clients)
Benefits of Multi-User MIMO (vs Single-User)
2.6x Improvement in UDP Throughput per Client (shown at Mid Range – MCS4/16QAM)
4x4APCapacity(Mbps)
4x4APCapacity(Mbps)
Time Time
1s-MU
1s-MU
1s-MU
1s-MU
1s-MU
1s-MU

9. 9QUALCOMM ATHEROS RESTRICTED – NDA
With 2-3x greater efficiency for MU clients, the network has more
“free” time/capacity to serve other clients.
MU-MIMO provides a better experience for legacy clients, too
1s-ac
SU
1s-ac
SU
1s-ac
SU
Time
1s-ac MU
1s-ac MU
1s-ac MU
Additional time & capacity
for other SU/MU clients
Existing SU-MIMO
Wi-Fi Network
New MU-MIMO
Wi-Fi Network

10. 10QUALCOMM ATHEROS RESTRICTED – NDA
Qualcomm’s end-to-end ecosystem
Home Gateways
& Routers
Enterprise
APs
Mobile &
Computing
MU-MIMO needed on both ends of the connection to deliver full benefit
Consumer
Electronics Automotive

11. 11QUALCOMM ATHEROS RESTRICTED – NDA
Qualcomm’s MU-MIMO product portfolio
Residential Routers
& Gateways
Enterprise
Access Points
Mobile &
Computing
Consumer
Electronics
Automotive
High performance single-chip
with PCIe host interface
Explicit and implicit transmit
beamforming
Exceptional range/coverage
Adds enhanced radio and
security capabilities needed
for infrastructure markets.
Rx hardware already built into
popular mobile platforms
Simple software migration plan
for OEMs
Designed to enable best
possible media experiences
on connected TVs, media
adapters, audio and gaming
systems
Rx hardware already built
into industry’s first 2-stream
11ac solution
Designed for in-car
infotainment and telematics
QCA9980:
• Up to 4x4 / 4-stream
• 1.733 Gbps max rate
QCA9982:
• Up to 3x3 / 3-stream
• 1.3Gbps max rate
QCA9990:
• Up to 4x4 / 4-stream
• 1.733 Gbps max rate
QCA9992:
• Up to 3x3 / 3-stream
• 1.3Gbps max rate
QCA6174:
• 2-stream 11ac + BT 4.1
• 867 Mbps max rate
• Low-power PCIe interface to
Snapdragon 805
WCN3680:
• 1-stream 11ac + BT 4.1 + FM
• 433 Mbps max rate
• Integrated into Snapdragon 801
QCA9378:
• 2-stream 11ac + BT 4.1
• 867 Mbps max rate
• PCIe, USB, SDIO interfaces
QCA6574:
• 2-stream 11ac + BT 4.1
• 867 Mbps max rate
QCA9980/2 WCN3680QCA9990/2 QCA6174 QCA9378 QCA6574

12. 12QUALCOMM ATHEROS RESTRICTED – NDA
Qualcomm begins
MU-MIMO
development
2012
1st gen VIVE™ for
networking & mobile
World’s 1st MU-MIMO
demonstration
(over-the-air)
20112007
QCA988x WCN3680
Qualcomm pioneered MU-MIMO
And has been perfecting it over the past 7 years
QCA6174
2009
Qualcomm authors
802.11ac Channel
Model for IEEE
2014
2ndgen VIVE™
w/ MU-MIMO
2013
MU-MIMO Rx built
into our 1- & 2-stream
mobile solutions
QCA999x
QCA9378

13. 13QUALCOMM ATHEROS RESTRICTED – NDA
Not all MU-MIMO is created equal
Most complex Wi-Fi technology to date, but many key algorithms left to interpretation
Standards-based Specs
(IEEE / Wi-Fi Alliance)
MU-MIMO in 5 GHz band
AP and station functionality
Multi-user beamforming capability
Qualcomm’s
Implementation
Advantages
Client grouping/tracking
Optimal rate adaptation
Switching between SU and MU
MU-MIMO/TxBF in 2.4 GHz

14. 14QUALCOMM ATHEROS RESTRICTED – NDA
Qualcomm’s unique algorithms deliver more precise MU-MIMO
Type of traffic on each device
Stationary or moving
# of streams supported by clients
(max 3 per group)
360-degree view of the channel
— Explicit and implicit feedback
— Doppler profile for each device
Dynamically adapts modulation & coding
SUPERIOR PERFORMANCE
Maximum throughput for all devices
Best use of available capacity
Reliable links for users in motion
Great experiences (even for latency-sensitive apps)
GROUPING:
Which clients to serve simultaneously
RATE ADAPTATION:
How to serve each group or device

15. 15QUALCOMM ATHEROS RESTRICTED – NDA
The Qualcomm Difference
Complete
MU-MIMO Ecosystem
QCA998x/999x for Networking
QCA6174 and WCN3680 for Mobile
(Snapdragon 801, 805 and future platforms)
QCA9378 for CE
QCA6574 for Automotive
Pioneered MU-MIMO
7+ Years of MU-MIMO development and
testing results in a deep understanding of
actual channel behavior
Optimized based on real-
world performance data
Dynamic grouping and rate adaptation
Based on extensive measurement of actual
channel behavior
More precise beamforming gets closer to
theoretical maximum performance
Qualcomm VIVE
With MU-MIMO

16. 16QUALCOMM ATHEROS RESTRICTED – NDA
For more information on Qualcomm Atheros, visit us at: www.qca.qualcomm.com
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© 2013 Qualcomm Atheros, Inc. Qualcomm is a registered trademark of QUALCOMM Incorporated. Atheros is a registered trademark of Qualcomm Atheros, Inc. All other registered and
unregistered trademarks are the property of QUALCOMM Incorporated, Qualcomm Atheros, Inc., or their respective owners and used with permission. Registered marks owned by
QUALCOMM Incorporated and Qualcomm Atheros, Inc. are registered in the United States and may be registered in other countries.
Qualcomm VIVE, Qualcomm StreamBoost, Qualcomm Hy-Fi, and Qualcomm IZat are products of Qualcomm Atheros, Inc.
Qualcomm Atheros, Inc., 1700 Technology Drive, San Jose, CA 95110
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