Romancing the Tablet

8/2/2019 Romancing the Tablet

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2011 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks oAT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained h

representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an en2011 AT&T Developer Summit




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Januar



Application and Hardware Design ConsiderationsWhen Adapting to the Form Factors and OS ofTodays Most Dynamic Computing Space

Romancing the Tablet

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representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an en2011 AT&T Developer Summit3

Romancing the TabletApplication Optimization


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4



JON SHARPPrincipal Product Development EngineerAT&T Mobility


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AT&T Communication Manager (ACM) started as asimple connectivity tool to enable communicationto AT&T Cellular networks on what was CDPD

ACM: Where We Came from

5

PC Cards

USBs

EmbeddedNotebooks

Stand Alone MiFi

Integrated Mobile HotSpots

EmbeddedNetbooks

ExtensiveFree Wi-Fi

Embedded & TethConnected Device

Evolution of Mobile Broadband

2008

Hardware consisted of PCMCIA Type II cardsand data rates were 19.2 kbps

EmbeddedConnected

Devices

EmbeddeTethereTablets
http://images.google.com/imgres?imgurl=http://www.mobiledealsfreegifts.co.uk/wp-content/uploads/2009/05/free-psp.jpg&imgrefurl=http://www.mobiledealsfreegifts.co.uk/sony-psp/&usg=__x7JLugJwQIjt0cFqE4Xp6klYqJA=&h=300&w=300&sz=9&hl=en&start=25&itbs=1&tbnid=sfajxgfRV-xDDM:&tbnh=116&tbnw=116&prev=/images?q=psp&start=21&hl=en&safe=active&sa=N&gbv=2&ndsp=21&tbs=isch:1


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Today ACM is a Robust, Feature RichConnectivity Client

6

Connect to a mobile or Wi-Fi networkConnect to a Non-AT&T Wi-Fi networkView Usage Meter

Update toCommun

Configureautomati

Send or r

Manage c

Mobile CoClick to cmobile n

3G Indicato a 3G (is availab

NOTE: 3Ghigher da

using old

Mobile Sistrength

Usage meter details: Provides estimate ofdata plan usage

Billing cycle counter: Displays how manydays remaining in the current billing cycle

Wi-Fi ConClick to cWi-Fi net

Wi-Fi netDisplays

Usage meter counter: Provides estimate ofdata plan usageNOTE: Wi-Fi connection activity does notcount against data plan usage.

Mobile network carrier: Indicates themobile network carrier name

Mobile Number: Displays the phone numberof the mobile device

Configure application settings Enable or Disable Flight ModeEnable or disable Wi-FiConfigure mobile settings Select a mobile networkSelect network technology typeConfigure mobile profiles

Select a connection profileCreate or edit a connection profileConfigure Wi-Fi profilesConfigure SIM card securityTest internet connection Access self service linksView connection client, device, and mobile network informationIdentify the Firmware Version


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Activation Agent/Session Based Pricing

3 Core Features

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3 Core Features

Be productive in even more places. Inaddition to accessing AT&T's 3G and EDGEmobile networks, LaptopConnect customerswith a qualified data plan can now getcomplementary AT&T Wi-Fi Basic access atthousands of hotspots nationwide.Participating locations include

Starbucks stores* and select airports,restaurants, and other familiar places youalready visit. That means it will be eveneasier to stay connected when away fromhome or the office.

Activation Agent/Session Based PricingWiSPR Authentication AT&T Wi-Fi Locations

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3 Core Features

Usage Meter

Activation Agent/Session Based PricingWiSPR Authentication AT&T Wi-Fi Locations

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Is it a phone? Is it a computer? What became that we needed to leverage 3 key features of A

Activation

Usage Meter

WISPr.

The influx of Tablets into the market created a neperspective on the capabilities of ACM

Here Comes the Tablet

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Requirements unique to tablets:New UI: Multi-touch screen, virtual keyboard, new screen form facto

New Os: Android, WebOS, Customized Linux

Public API languages are different from ACM native code.Porting all ACM into tablet environment is not trivial.

No need for all features of ACM: Tablets already support nativeWi-Fi/Mobile connections, GPS, Phonebook, SMS

Best approach is to implement the 3 core features(Activation, Usage Meter, Wispr) on tablets:

Rely on native tablet UI, Public API, connection manager to ensure forward compatibility and easy maintenance.

Port the 3 modules from ACM native code to New OS native code

Provide Tablet OEM with device requirements to offer required pubensure correct implementation of these 3 features. Example: MSDINnumber, radio reboot

Tablet Challenges

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ACM Architecture

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User needs the ACM application primarily

to manage the connectivity with a USB oran embedded modem

Connection is inherent to the

Primary function of ACM is tobackground service that provnotifications that are relevancore features

Example: Activate SIM card, ReExceeding data limit, Status of Authentication, etc.

Laptop Like Devices(Windows/Mac/Linux)

Tablet Like De(Android, etc.


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ACM Architecture

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Laptop Like Devices(Windows/Mac/Linux)

Tablet Like De(Android, etc.

ATT Widget

User Inteface

Activation

AgentUsage Meter WISPR


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ACM Tablet Widget

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Provides usage

warnings and status

Displaying the subscribersdata usage synchronized

with the AT&T billingservices/server

Checks status ofSubscribers SIM

(Active/Inactive)

Automaticauthentication on

AT&T Wi-FiHotSpots

Initiating the purchaseof a new session via

theAT&T server


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representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an en2011 AT&T Developer Summit15 2011 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks oAT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained h


Romancing the TabletHardware Design Optimization

2011 AT&T Developer Summit The views expressed in this presentation, do not necessarily reflect the views of AT&T


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representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an en2011 AT&T Developer Summit16 2011 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks oAT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained h


JAMES GRADEBBIE JONESVP of EngineeringDelta Mobile Systems

CTODelta Mobile Systems



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2011 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks oAT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained hrepresentation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an en2011 AT&T Developer Summit

Wireless Tablet Design Pitfalls

Wireless Design FactorsWireless Design Guidelines

RF Tests

Summary

Q & A

Agenda

17 2011 AT&T Developer Summit The views expressed in this presentation, do not necessarily reflect the views of AT&T


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Were using an AT&T approved module, so our

will automatically be approvedWell put the antennas in whatever space is lefthe housing

For production test, we just need to confirm th

can connect to the wireless network

Top 3 Pitfalls of Wireless Tablet Design



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Thin form factor

Multiple radios, multiple antennasInternal sources of interference

High speed processors and clocksLarge LCD

Achieve overall good system performanceWireless connectivity

Data rates

Cost effective assembly and production test

Wireless Tablet Design Challenges

Wireless Design Factors



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Desense Noise entering receiver,

e.g. clock harmonics or spuriousemissions

Blocking Receiver compression,i.e. strong signal conditions fromco-existing intentional radiator

Common Types of Wireless Interference

Wireless Design Factors

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Modem

WiFi / B



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Wireless Design Guidelines

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ComponentPlacement

Processor andMemory

Wireless

Audio

Power

Shield CansCompartments

Easy Placement

Anten

Aw

copla

Av

AssemWi

Eff



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RF Tests

Test Setup

Shield box

Proper testequipment

Test SW support

DV/Pre-Cert TestsRadiated power and harmonics

Receive sensitivity

EMI / RF susceptibility

Manufacturing

Shield box

Measure TX &

Track IMEI nu

Final product must undergo certification testing ethough wireless modules are AT&T approved



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Confirm final integrated tablet meets/exceeds

product and certification requirementsImplement wireless test capability early and cowireless performance tests throughout design

Design for manufacturing to insure wirelessperformance is maintained and appropriately t

Summary



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Thank Youwww.deltamobile.com

[email protected]

Wireless Design, Test, &

ManufacturingOn-site RF Chamber

400MHz to 6GHzCellular, LTE, WiFi, Bluetooth,

GPS, Zigbee


Q&A
http://www.deltamobile.com/


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2011 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks o

AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained hrepresentation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an en2011 AT&T Developer Summit

A winning team one-stop shop, a startup inside

Business model flexibility and alliancesFastest Mobile Broadband Network; clear path to L

Best-in-class sales and distribution

AT&Ts Emerging Devices Organization

Q&A

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Romancing the Tablet

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