BridgeWave Communications 4GWE Keynote Session – Small Cell Backhaul Options September 13, 2011.

BridgeWave Communications

4GWE Keynote Session –

Small Cell Backhaul Options

September 13, 2011

New 4G Paradigm

Mobile networks up to 3G focused on coverage not capacity

Macro-cell approach was adequate, 3-5 km radius

• Access = 100Mbps

• Aggregation = 300 Mbps

4G is all about capacity

10-100 Mbps to handsets

170 Mbps per LTE sector

Higher backhaul rates needed e.g. 1 Gbps

Data rates to devices affected by distance from base station

Ubiquitous, high speed coverage requires divergence from

macro-cell model

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Small-Cell Drivers

To meet 4G capacity needs, higher base station densities

are required

The only way to achieve this economically is to deploy small

and inexpensive cells around the macro-cell

Small Cell Backhaul Challenges

Deployments required in diverse locations

Large number of nodes required due to coverage needs

Environment & Aesthetics

High capacity – up to 1 Gbps

Low cost (CAPEX & OPEX)

Short deployment lead time

Small Cell Backhaul Options

Fiber

Likely to address < 30% of small cell locations

Copper

Not enough copper pairs available to most locations

Wireless <6 GHz (NLOS)

Unlicensed (2.4/5.8 GHz) subject to interference

Licensed – scarce and expensive resource (access)

Microwave frequency band (6 – 38 GHz)

Licensing and equipment cost

Regulated min antenna size

Limited capacity

….what about millimeter wave?

Spectrum for Backhaul

6 - 38 GHz (licensed) Per link license typically $2K fee Long distance

• 6 GHz up to 50 miles, 38 GHz up to 3 miles Optimized for speeds up to 350Mbps per channel

60 GHz unlicensed (free) Excellent for short distances (1/2 to 1 mile) Gigabit speeds and urban environment friendly

70/80 GHz (lightly licensed) Per link license <$100 Optimized for Gigabit speeds up to 2 miles

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MMW FrequenciesTraditional MW Frequencies

mmW Propagation

60GHz: Absorption of O2 ~14dB/Km 1-2Km for 1Gbps links @5’9s

80GHz: 2-4Km for 1Gbps links @5’9s

Neither is impacted by: Selective fading (multipath) due to

relatively short links Fog (<0.4dB/Km)

60 GHz Excessive rain150mm/h

Heavy rain25mm/h

Fog

80 GHz

Drizzle0.25mm/h

mmW Directivity

High gain and narrow beam-width achieved with small antennas

Typical examples:

Implications:

Security

High interference immunity

High frequency reuse

Comparison of beam width @ 1 mile:

5.8 GHz 24”

60 GHz 10”

60GHz

5mm

5” antenna 3dB / GA 1.0 / 35dBi

10” antenna 3dB / GA 0.5 / 40dBi

5.8 GHz = 1,140’ wide @ 1 mi

60 GHz = 128’ wide @ 1 mi

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The Aesthetics Challenge

Traditional parabolic

antennas are OK for

rooftop/tower/mast

deployment

Street-level deployment

requires a different approach:

Aesthetic

Concealed / disguised

Small footprint

Why 60 GHz for Small Cell Backhaul?

Ultra-High Capacity Abundant spectrum available

Low Cost Equipment enabled by new consumer

indoor applications

OpEx and recurring fees (e.g. license)

Robustness O2 effect

Antenna directionality

Excellent frequency reuse

Good fit for urban environment Aesthetic, “concealed” solution

Small footprint

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4” diameter “pipe” delivers 1 GBps up to ½ mile

< 3o beam width

> 30 dBi gain

Alignment hardware built-in

Stackable

Can incorporate RAN antenna

Future-proof design

Migrate to electronic alignment

Picohaul Form Factor

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Same Gbps backhaul

solutions - multiple

mounting options

A: Top of pole

B: Side of pole

C: BTS Top or inside

D: Side of building (wall mount)

Mounting Options

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Usage Models

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Macro-cell Level

Pico-Cell Level

Rooftop LevelMacro-cell

Street LevelPico-cell

What about line of sight?

30% of links in urban areas will not have LOS NLOS solutions will be required

Millimeter wave superior when LOS is available NLOS can be mitigated by planning

• Daisy-chain, Mesh or Ring topologies

© BridgeWave Communications www.bridgewave.com | 1-866-577-6908 14

BridgeWave Communications

Corporate Headquarters: Santa Clara, CA, USA

Focus: High-Capacity & 4G backhaul solutions

Founded in 1999

Privately held

100 Employees

Based in Silicon Valley, CAClearwire 4G Backhaul, NYC

Metro DC Police – Video Surveillance Backhaul

Over 12,000 Systems Deployed in 60 Countries

Government

Enterprise

EducationHealthcare

MunicipalitiesService Providers

The High Capacity Market Leader

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U.S. FCC 70/80 GHz RegistrationsData from 1/1/2011 thru 6/30/2011 based on FCC 70/80 GHz Registration Database

© BridgeWave Communications Confidential and Proprietary www.bridgewave.com | 1-866-577-6908 1-408-567-6900

BridgeWave 4G Backhaul Solutions

Focused on solving tough backhaul challenges facing next-gen networks

Introduced FlexPort80 in 2009 – flagship carrier class product

Introduced GigE microwave (18 – 23 GHz) multi-channel products – Q4 2010

Introduced 3 Gbps FlexPort80 solution – Q1 2011

Introduced 60 GHz PicoHaul – small cell backhaul solution – Q1 2011

Millimeter Wave

MicrowavePicoHaul

Thank You

Sales: 1-866-577-6908Fax: 1-408-567-0775

[email protected]

www.bridgewave.com

BridgeWave Communications, Inc.3350 Thomas RoadSanta Clara, CA 95054

BridgeWave Communications, Inc.3350 Thomas RoadSanta Clara, CA. 95054 U.S.A.Tel: +1 (408) 567-6900Fax: +1 (408) 567-0775

www.bridgewave.com

Amir MakleffPresident & CEOBridgeWave Communications

For more information:

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