Every once in a while a new technology changes the game. Some benefit from it while others fail to adapt. Long Term Evolution, or LTE for short, is on the surface ,just yet another fast wireless standard bringing us faster mobile networking. But just like the freeway was much more than just a faster road, LTE actually has a chance to change the rules for app developers and create new possibilities.

1. L TE
New Kil ler Apps
Building

2. About Marko Gargenta
* Developer of Android Bootcamp for Marakana.
* Instructor for 1,000s of developers on Android at
Qualcomm, Cisco, Motorola, DoD and other great orgs.
* Author of Learning Android published by O’Reilly.
* Speaker at OSCON (3x), ACM, IEEE, SDC, AnDevCon.
* Co-founder of SFAndroid.org
* Co-chair of Android Open conference: AndroidOpen.com
AN

3. What LTE Is

4. Why you'd care
LTE is Faster
LTE is Richer
LTE is Safer
LTE > 3G++

5. LTE is Faster
SPEED AVERAGE LATENCY
LIMIT SPEED ONEWAY
86/28 12/5 15
Mbps Mbps ms
Faster!
Over 50%
LTE enables Video sharing, conferencing, HD streaming.

6. Much more bandwidth
3G LTE
1.25MHz - 5MHz 1.4MHz - 20MHz
e for data
Built for voic Built

7. Latency Reduction
65 ms
50 ms Low latency
10 ms 10 ms
=> High speed apps
HSPA HSPA+ LTE LTE
WiMAX MIMO2x2 MIMO4x4
Higher peak rates (theoretical)
173 Mbps
High peak throughput
86 Mbps => Rich content
55 Mbps
42 Mbps
14 Mbps 11 Mbps
HSPA 5MHz HSPA+ 5MHz
Credit: Alcatel-Lucent

8. LTE is Richer
* HD video
* Multipart video
* Real time gaming
* Cloud computing
* Enhanced reality

9. LTE is Richer
3G LTE
vs.
IPv4 IPv6
N -
10- digit MD 15-dig it IMSI
identifier based i dentifier

10. LTE provides for Quality of Service.
Slower traffic yields to faster packets.
Such as video conferencing.
Your app can take advantage of this.

11. Application impact
Smartphone Model for 2012
Video
Streaming
Avg Call Thruput (kb/s)
Interactive
Web
Video Size of bubble Indicates Aggregate Data Usage
Browsing
Audio
Streaming
Email
Gaming
SMS
MMS
4.0
Busy Hour Calling Attempts (BHCA)
As networks become more capable, users will want
richer apps. Credit: Alcatel-Lucent

12. Simplified Worldwide Roaming
LTE is unifying standard
providing seamless
international roaming & device
economies of scale

13. LTE is Safer
* Network authentication (128-bit keys)
* SIM robust and non-invasive key storage
* RAN encrypted data communication to
prevent eavesdropping

14. More Security Features
* Identity protection (IMSI/IMEI) against
snooping & alteration
* IpMS granular security per service
* IPSec for secure tunneled IP communication

15. 2G
Built for voice
Credit: Paul Vlaar

16. 3G
Built for voice
and data
Credit: Wikipedia

17. Mobile used to be for voice
e
ing to peopl
People talk

18. LTE: More than a faster road
Credit: Imre Solt

19. LTE Enables M2M
g
to everythin
Everythi ng talks

20. The Internet of Things
Everything is connected to everything

21. Mobile M2M Roadmap

22. The world is adopting LTE
Europe
America
,
candinavia
North oPCS
2010: Lau
n ches in S
urope
izon, Met
r Eastern E
2010: Ver Dividend
-Mobile pe an Digital
2011 : AT&T, T 2011: Euro
Germany
Lau nches – E
des to LT
2012/13: 3G upgra
Asia
ca
tin Ameri hes
launches
ndia BWA
La 2011: I
a Mobile
unc
ntial la In pipe line: Chin
2011: Pote
broadband TD-LTE
for fixed
113 LTE network commitments in 46 countries
156 operators in 64 countries investing in LTE
At least 55 LTE networks in service by end 2012 Credit: Alcatel-Lucent

23. LTE is getting cheaper
LTE 1st generation
$5,000
$1,000
$500
$100
HSPA+
HSPA+
1st generation LTE 2nd generation
$50 2nd generation
(multimode)
Commodity price
2009 2010 2011 2012 2013 2014
Credit: Alcatel-Lucent

24. The Long Term Evolution
GSM/UMTS HSPA+
GSM/EDGE UMTS/HSPA+
GSM/EDGE L
TD-SCDMA
1xRTT
T
1x/Do-R.A E
1x/Do-R.A B/A+
WIMAX
E
le ad to LT
A ll roads
Credit: Alcatel-Lucent

25. Follow the money
Source: Analysys Research

26. App Development
Best Practices

27. Plan for mix of networks
2G LTE
3G
Your app can make intelligent choices based on network.
Networks differ on bandwidth, latency, throughput, reliability,
security, and more.

28. n
Data coming i
Use bigger buffers
LTE is faster than 3G so big
buffers work better.
True even when switching to
and from 3G.
r
he buffe
Data in t
t
Data going ou

29. Pre-fetch for faster experience
Anticipate and pre-load
data user will want.
Experiment with
algorithm that works best
for your app.
LTE's larger bandwidth
and lower latency helps.
credit: David Shankbone

30. Cache more often
Your App
Cache
Be mindful about spikes in network traffic
Try to use smart cache to mitigate for spikes

31. One session for multiple GETs
GET/Response
Session
GET/Response
GET/Response
* LTE was designed for long sessions
* Old networks: Small but frequent requests
* LTE: fewer requests->better responsiveness and lower latency
* Group requests into single session

32. Take advantage of all-IP network
Start stream A
Stop stream A
Session
Start stream B
Stop stream B
Start stream A
* LTE: idle to active in 100ms -> always-on experience without
actually being active all the time
* Concurrent media streams experience: start one while stopping the
other, as in voice over a scrolling map

33. Favor downloading over streaming
vs.
ing g
Downloa
d Streamin
Expect 2 to 8s delay when switching between LTE and 2G/3G.
Streaming is also more expensive on battery.

34. Avoid aggressive behaviour
Aggressive
App
Other
Apps
* Aggressive behavior: continuously using network without
consideration for others.
* Results in tying up network resources and drains battery.

35. Summary
LTE represents a potential game changer; It
creates opportunities for new killer apps.
Accept the long term evolution and thrive.
credit: KillDevil at Wikipedia

36. Thank you!
Slides/Video: Sponsored by:
http://mrkn.co/f/442
Marko Gargenta, Marakana.com
@MarkoGargenta
(c) Marakana