Steve GilligDirector, Communication Technologies Research LabsMotorola Labs

Grand Challenges in Wireless

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SDR and Cognitive Radio Vision

… With devices capable of multi-band, multi-mode operation and easily re-configured via software and upgradeable via a scalable architecture, …

Imagine A Mobile Communication System …

… Where devices are aware of other nearby devices and networks, and capable of changing frequency bands and modes of operation to find

and secure or lease unused spectrum, avoid interference, and improve coverage.

… That securely repairs software bugs, releases software updates, and provides real time like-you-

were-there customer care over-the-air, …

Cognitive Radio

Over-The-Air Device Management

Software Defined Radio

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Challenge: Product-friendly Technology

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Mobile Broadband

Wireless Access

Enterprise Wireline

Heterogeneous NetworksM

ob

ilit

y

Loca

l

M

etro

W

ide

2G 2.5G 3G 3.5G

Data Speeds

802.16e(Mobile)

802.16a/d

802.11802.11g

Residential Wireline

4G

OFDM

Patents 2700+ Standards Contributions 2000

Heterogeneous Networks

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4Gx – 4G Experimental System

Tribune Tower Downtown Chicago• Base antennas 11th and 35th floors

Pedestrian Measurements

• Completed 4G field experiments – with handheld devices – both urban and suburban– Single antenna with various modulations: 20-80Mbps– 2x2 MIMO @ 300Mbps (post-processing, ideal channel

knowledge)

Motorola Tower• Suburban Schaumburg

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Suburban vs. Urban Findings

• Delay Spread – Suburban location experienced more RMS delay spread than the urban 11th Floor Tx– Urban 35th Floor Tx experienced more RMS delay spread than the 11th Floor Tx

• Spatial Conditioning (2x2 MIMO Reciprocal Condition Number)– 11th floor Chicago > 35th floor Chicago >> Schaumburg– Rooftop > Handheld

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WLAN vs 3G/4G: Domination or Co-existence?

Domination Co-existenceMassive Cellular Infrastructure/User Base XLow Cost WLAN Infrastructure XComplementary Coverage X

Different Types of Devices/Needs XWLAN - High Local Area Data Rates XCellular - Ubiquitous Coverage X

Operators

Consumer

SeamlessMobilityOpportunity

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Seamless Mobility Architecture

Cellular 2.5G

Service Delivery Platform

Application &Content Servers

Cellular 3GMobile Broadband Wireless Access

Cable/DSL/Fiber

Core IP Network

Communication Gateway

Communication Gateway Communication

Gateway

Softswitch

Wireless Services Manager

Motorola Presence

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Seamless Mobility is not just continuity of bits… it’s continuity of experience

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“I’m a die hard Boilermaker football fan.

I watch the pre-game show on HDTV…

Walking to the stadium, my excitement builds as the experience follows me on my phone …

In the stadium, I see a great run and get statistics on the running back ...

Of course, I order clips of Purdue’s win over Ohio State in the final 10 seconds …

They’re available anytime …

When I’m with friends in the Union …

When I’d rather see a curl on a football field than an H-field.”

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“I like to share music videos with my friends.

My PC’s big screen really makes the latest John Mayer MV come alive in my room …

My friends call, so I pause it and get ready to meet them at Starbucks …

I resume the MV on my phone while on the walk there …

Sipping Cappuccinos, we take turns sharing our favorite MVs on each others phones …

Sharing with my friends is cool; I even share some clips of John Mayer I took with my phone

at his last concert.”

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Seamless Content HandlingContent Handling

Home Network

Store on Gateway

DVB, Cellular

Buy/ rent and stream content

online

Buy content pull from

home storage

Listen via media adaptor or

connected stereo

Browse and listen from TV

Pull from storage via TV or Set Top Box

Store on PC

Synchronize to car

Internet

Patents 540 Standards Organizations 6

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Seamless Sensing & Control Things are talking…

Things-to-Things Things-to-People

Building Automation

Security

Remote System Management

Manufacturing & Inventory

Environmental Monitoring

People toThings

Wireless Network Server

EnterpriseServer

WLANw/VoIP

Firewall

WLAN

Industrial Control

Sensing & Control

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Real-time CommunicationsInteroperability, Push to Everything

Patents 3500+ Standards Contributions2000+

Real Time Communications

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Challenging Research Areas

• Software Defined Radio• Cognitive Radio• Dynamic Spectrum Sharing• Cooperative Relay Systems• MIMO Systems• Flexible Power-efficient Protocols• QoS for VoiP• Seamless Mobility Enablers

– Security for distributed content usage– Intelligent Adaptable User Interface

• Compelling Applications that …– Drive enabling technologies– Create pull for entirely new classes of products

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The future of communications …

• User centric content - device and context sensitive driven by affordable, available broadband

• Applications explode – digitization of everything at the edge of the network

• Privacy, safety and security – critical for content that is purchased and created

• Full mobility – across heterogeneous networks

• Always on, always here – sessions that cross networks and devices, seamlessly