LTE and Wi-Fi SON: Opportunities and Lessons Learned

Steven GlapaSteven GlapaSenior Director of Field Marketing

About Ruckus

Optimized packet-by-packet selection from among 2n

possible patterns

Large number (n) of small, inexpensive antenna elements with directional and polarization diversity

BeamFlex optimization engine on host processor

Off-the-shelf 802.11 chipset and RF front end

digital switch

2

7 years

2,500,000 units shipped in carrier, enterprise Wi-Fi

~100% annual growth

2x real-world performance gain over conventional Wi-Fi

350 people, 200 engineers

By the numbers:

80 countries

100,000-node 3G offload network underway in Tokyo

45,000-node mesh network in India

#1 outdoor Wi-Fi share

What LTE SON can learn from Wi-Fi

0ddt

(attribute)

3

ddt

> 0(attribute)

Why not just use Wi-Fi?

Small-cell Infrastructure Capex, US$/Mbps/km2 and Availability

0 1,000 2,000 3,000

HSPA

LTE

Now

2012?

4

Source: operator and TEM benchmarking, Ruckus back-of-the-envelope analysis.

LTE

802.11n

802.11ac

2012?

Now

Year-end 2012

Dynamic Authentication in Secured Wireless Networks (4085US/EP/CN & also see 4264US)

Provisioned Configuration for Automatic Wireless Connection(4086US/EP/CN)

Multicast to Unicast Conversion Using Distributed AP Control(5100US)

Omni Planar Antenna w/Selectable Elements(2823US/7,292,198 2823CN/TW/EP)

Minimized Antenna w/Selectable Elements(2868US/7,362,280)

Improved Data Throughput in Communications Networks(2880US/7,505,447 2880EP/1759543)

Circuit Board w/Peripheral Antennas(2894US/7,193,562 [REX] 2894CN/TW/EP)

Wireless LAN Device(3325US/D532,001 3325TW/D113194)

Antenna w/Vertical & Horizontal Polarization(3346US/7,358,912 [REX])

Pin Diode Network for Multiband RF Coupling(3441US/TBD 3441EP/CN)

Multiband Omni Planar Antenna with Selectable Elements

Details will necessarily be limited

5

Multiband Omni Planar Antenna with Selectable Elements(3442US 3442EP/CN/TW)

Selectable Antenna Elements w/Phase Shifting(3443US/7,498,999 3443TW)

Antennas w/Polarization Diversity(3529US/7,498,996 3529CN/EP/HK)

Multiple-Input Multiple-Output Wireless Antenna(4080US)

Peripheral Antenna Apparatus(4159US/7,525,486)

Wireless Access Point(4335US/D596,628)

Wireless Access Point Base(4351US/D596,168)

Wireless Access Point Dome(4352US/D595,705)

Minimized Antenna w/Selectable Elements(4393US/7,511,680)

Wireless Access Point(4601US/D596,635 4601CN/TW)

a word from our patent lawyer...

A wealth of useful control

Classic Beamforming Ruckus BeamFlex (1,000s of these)

6

W-CDMA or LTE small-cell application

Autonomously

Organize

Adapt to long-term changes

Null

7

Null

Adapt = f (time of day)

Baseline demand distribution

8

Deploy at available sites, self organize

9

New traffic trend

10

Add cells, adapt

11

Null

interference source

12

Traffic = f (time of day)

e.g. park at lunch hour

13

Adapt temporally

14

Customers report huge TCO advantages

80% Less technical staff time50% Lower cash costs

Conventional Alternative

~50% less capex and ongoing cash maintenance costs

Conventional Alternative

~80% reduction in technical staff time required for WLAN

15

Ruckus

Annual (3x)

1x Capex

Average results from sample of 40 Ruckus case studies

Ruckus

Maintain

Deploy

required for WLAN installation & maintenance

Troubleshoot

Representative Hospital Case Study (Midwest Surgical)

Simulation results: 1.5 to 2x gains

6 0.1 -6 5 .1

5 5 .1 -6 0.1

5 0.1 -5 5 .1

4 5 .1 -5 0.1

40.1-45.1

35.1-40.1

30.1-35.1

25.1-30.1

20.1-25.1

15.1-20.1

10.1-15.1

5.1-10.1

0.1-5.1

-4.9-0.1

DL Mbps

6 0.1 -6 5 .1

5 5 .1 -6 0.1

5 0.1 -5 5 .1

4 5 .1 -5 0.1

40.1-45.1

35.1-40.1

30.1-35.1

25.1-30.1

20.1-25.1

15.1-20.1

10.1-15.1

DL Mbps

Macro

Macro + Omni

16

6 0.1 -6 5 .1

5 5 .1 -6 0.1

5 0.1 -5 5 .1

4 5 .1 -5 0.1

40.1-45.1

35.1-40.1

30.1-35.1

25.1-30.1

20.1-25.1

15.1-20.1

10.1-15.1

5.1-10.1

0.1-5.1

-4.9-0.1

DL Mbps

10.1-15.1

5.1-10.1

0.1-5.1

-4.9-0.1

Macro + BeamFlex

Hetnets key challenge3G Yesterday

3G/4G Tomorrow

17

Size matters

Mass, kg Antenna gain, dBi

8

10

12

14

16

18

20

Company A2

Company W

Company M

Company C

Company A1

18

Longest dimension, cm(includes external antennas)

Source: Product datasheets.

0

2

4

6

8

0 20 40 60 80 100

RuckusZoneFlex 7762

Company W

Company B

Company A1

24 cm(9.4 in)

20 cm(7.9 in)

The real world of small cells is messy

dB

SNR in multipath environment

19

~0.5m

+ many cells = plentiful co-channel interference

Hint: optimize on outcomes

Signal strength is not a reliable indicator of potential radio resource utility

d(SINR)/dx and /dt can be very high

20

very high

Optimizing on immediately realizable utility can have 3x better results in saturated spectrum

Wish list

Operators: support multivendor hetnets for best-in-class performance

TEMs: lets talk...

UEs: fix Wi-Fi handoff, add IPSec+IKEv2

21

Thanks.

More questions?More questions?