Wireless overview impressico

Impressico Business
Solutions

Wireless Overview – Technology and
Wireless Overview
Software
- Technology and Software
Pradeep Hosabettu
Pradeep Hosabettu

2
Coming up..

• Wireless Overview
• Smartphone Hardware Block Representation
• Smartphone Operating Systems
• Mobile App Solution Overview
• Mobile App Special Considerations
• Wrap-up!

14 March 2013 © Impressico Business Solutions Pvt. Ltd.

3
Why wireless?

• Cut the cord – free at last
• Increased productivity
• Increased coverage
• Government and Private Services - Smashed boundaries


4
Understanding Wireless…

• Many constraints – bandwidth, distance, spectrum frequency
• Many different paradigms – device-device, device-network
• Many needs – voice, video, bursty data, Internet

Multiple standards bodies pulling together and separately across the
entire field!


5
Understanding Wireless…(contd.)

• Cellular (WAN): e.g. GPRS, 3G, 4G
• Local (LAN): Wifi (b/g/n)
• Metro (MAN): WiMax
• Peer-to-Peer: Bluetooth, Wifi-Direct, IR, NFC

 Continually evolving specifications
 Toward higher bandwidth, greater power efficiency, wider
compatibility


6
Basic Smartphone block representation

WIRELESS FUNCTIONS APPLICATIONS

RAM
Firmware Applications
Flash
Smartphone OS and
Proprietary RTOS
APIs

Cellular Modem Application
Processor B Processor
u
Wi-Fi,
DSP DSP
s Graphics
BT SoC
(speech) (mod demod) Core

Controllers ( camera,
display, Power, touch,
etc. )
GSM, CDMA, 3G, Wi-Fi, BT Firmware
Android/iOS/Windows Phone OS
and APIs/Services


7
Smartphone OS – young and restless!

• An incredibly short history:

 Pre-smartphone era: up to 2000

 Early-smartphone era: 2000-2007

 Modern-smartphone era: 2007-present


8
Pre-smartphone era – up to 2000

• The best devices was the starting lineup of Nokia’s Communicator

• All phones only provided texting, voice calling and rudimentary
browsers

• Palm introduced its PDA – Personal Digital Assistant. It had no
phone functions

14 March 2013 © Impressico Business Solutions Pvt .Ltd.

9
Early-smartphone era – 2000-2007

• Ericsson R380 – first smartphone runs on Symbian OS
• Symbian OS rules the smartphone market here
• Palm OS and Blackberry make a mark


10
Modern-smartphone era – 2007 to now

• Begins solidly with the iPhone out in 2007 and unleashing a
revolution in the mobile industry
• Apple App Store launched June 2008
• First Android phone HTC Dream out in 2008
• Google Play Store launched end-2008


11
Modern-smartphone era – A major shift on many levels

• Beginning of the end for entrenched majors – Motorola, Nokia
(death of Symbian OS)
• Cellular Industry rudely awakened by rank outsiders – Apple and
Google who showed them:
 How to design and develop an OS
 How to architect an application ecosystem
 That cellular performance was not as important as h/w and
applications
 That stellar user experience was key to data consumption
 That mobile operators should play no role apart from just
building a reliable WAN network


12
Smartphone OS platforms today

• iOS – proprietary
• Android – open source and Linux-based
• Blackberry 10 – proprietary
• Windows Phone 8 – proprietary
• Others – Ubuntu Touch, Firefox OS (HTML5)


13
What’s powering our smartphones..

Q4 2012 (courtesy: Q4 2011 (courtesy:
Strategy Analytics) Strategy Analytics)

Android Android
(70%) (51.3%)
iOS iOS
(22%) (23.6%)
Others Others
(7.9%) (25.1%)


14
Overview of a Mobile Solution

Enterprise/server-side
components

Wi-Fi/cellular 3G

BT
NFC
Wifi-
Direct


15
Mobile App Dev Strategies

Courtesy: Icenium


16
Considerations for Mobile App Development

• Memory
• Power
• Mobility
• Performance
• Cross-platform symmetry
• Upgrade cycles


17
Memory

• Think in the low MBs – fixed heap allocations available for apps
• Garbage Collection strategies
• Reference strategies
• Design should factor in responses to the OS’ warning/alert structure
• Move data to persistent storage for access using SQL


18
Power

• Battery drain is reputation-damaging
• Understanding of power states and being responsive to them is key
• Sleep vs background execution
• Polling vs using OS-specific substitutes
• Smart Network usage


19
Mobility

• Having a mobile-version vs mobility-powered app – e.g. think
social, gps, motion-control
• Network transitions and outages
• Security – giving thought to user control that is discreet and secure


20
Performance

Design and develop for –
• Responsiveness - fast
• UI Design – pleasing and visibility across conditions, form factors
• Data integrity


21
Cross-platform Symmetry

• Keep architecture object-oriented
• Keep UI design and quality consistent
• Evaluate non-native platforms carefully
• Strategies surrounding power, memory defined to be platform-
agnostic at the highest level
• Explicitly call out platform-dependent high-level functionality


22
Upgrade Cycles

• Mobile OS platforms are changing constantly that
impact developers and users:
 new OS-level enhancements– multitasking in iOS
 new UI-level enhancements – Fragments in Android
 new access technologies – WiFi-Direct
 new wireless technologies – NFC, high-speed BT
 new user features – notifications
• App feature updates and additions
• App UI revamp
• App bug fixes


23
Mobile – can’t be ignored…

• Worldwide smartphone penetration growth very strong
• Earlier hurdles for mass adaptation eroding fast
 3G adaptation rising
 Mobile payment growing for the masses (e.g. Airtel Money)
• Unmatched personal platform!


THANK YOU
Impressico Business Solutions
Email: info@impressico.com

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