SEAMLESS MOBILITY
Is it where the future of telecom headed?
Agenda
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What is Seamless Mobility?
Why all this fuss about Seamless Mobility?
Developments in telecom that are making it possible
Good and Bad
Future
Questions
Jargons
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GPRS – General Packet Radio Service
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WLAN – Wireless Local Area Network
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UMTS – Universal Mobile Telecommunication Systems
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MN –
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SM – Seamless Mobility
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IMS – Internet Protocol Multimedia Subsystem
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SIP – Session Initiation Protocol
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IETF – Internet Engineering Task Force
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ITU – International Telecommunication Union
DISCLAIMER
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This talk is designed to be as generic as possible
but lack of established standards in the field of
study necessitates references to commercial concerns
and their practices. These references should, in no
way, be considered promotional material. The data
presented is publicly available and has been cited
wherever possible.
An Example
Presence
CDMA
WLAN/Wi-Fi
VoIP/PTT
Web/Gaming
LTE
UMTS
Email
Video/IPTV
iPhone image source: zdnet.com
What is Seamless Mobility?
Transparent, easy, uninterrupted and ubiquitous
access to information, multimedia and
communincation when, where and how we want it.
What is Seamless Mobility?
Source: Seamless Mobility Brochure, Motorola Inc.
What is Seamless Mobility?
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A widespread vision of the fourth generation (4G)
or next generation networks (NGN) includes the
cooperative co-existence of WLAN, GSM/CDMA,
GPRS and UMTS.
The Mobile Nodes (MN) are increasingly going to
be equipped with multiple network access cards
and users will be able to roam transparently over
heterogeneous networks in a seamless manner.
What is Seamless Mobility?
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The three C’s
 Connectivity
– Intelligently manages how connections
are made based on device and access network
capabilities, availability and preferences of the
interacting parties of the session (presence information).
 Continuity – Controls the movement of established
sessions across heterogeneous networks.
 Content – Enables the ability to publish and/or consume
information from anywhere at anytime.
What is Seamless Mobility?
Source: Motorola Seamless Mobility Connectivity Architecture Whitepaper, Motorola Inc.
What is Seamless Mobility?
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The Device Client Plane supports all devices supporting a common client to
manage applications.
The Access Plane encompasses both wired and wireless networks.
The Transport Plane interconnects all elements through IP transport for
transferring signaling and bearer traffic and also contains media
adaptation functionality through media gateways.
The Control Plane supports the session control functions to establish, maintain
and release session resources as well as managing QoS.
The Applications Execution Environment Plane supports user applications
(like Push-to-X), their enablers (like authentication and applications such as
presence) and interaction control that’s supported by the service capability
interaction manager (SCIM).
Why all the fuss about it?
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The world as we know it, is changing. Our
generation is driven by the need for access to:
Explosion in mobile data services!
Why all the fuss about it?
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Healthcare
Voice
Email
Social networks
Multimedia streaming applications
Developments in telecom that are making it possible
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Device advancements – Smartphones, PDAs that are
capable of doing about anything that a computer
can.
Wi-fi, WiMax, LTE – Provide ubiquitous access to
High Speed Internet.
IP telephony (SIP), IMS – Form the core of any
seamless mobility system. The IMS framework may
be referred to as the heart of any next generation
network system.
Challenges
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Standardizations, architecture design and access
network coverage.
Hand-off
 Horizontal
hand-off
 Vertical hand-off
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Costs, power consumption, security and QoS
Getting multiple vendors and service providers to
work together.
Questions
kaushik.choudhary@wipro.com
Acknowledgements
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http://4g-wirelessevolution.tmcnet.com/topics/4gwirelessevolution/articles/48709-ims-next-gennetworks-year-review-whats-ahead.htm
http://www.openbasestation.org/Newsletters/July2
008/nextpoint.htm
http://www.3g.co.uk/PR/Jan2008/5613.htm
http://www.deviceforge.com/articles/AT81712870
40.html
http://en.wikipedia.org/wiki/Long_Term_Evolution
Acknowledgements (contd.)
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http://en.wikipedia.org/wiki/LTE_Advanced
http://en.wikipedia.org/wiki/W-CDMA
http://en.wikipedia.org/wiki/Universal_Mobile_Tel
ecommunications_System
http://www.vodafone.com/flash/receiver/12/articl
es/index00.html