Next Generation All-IP Telecom Networks: Quality of Service Challenges and Is...

Google Tech Talks
January, 14 2008

ABSTRACT

The SIP-based IP Multimedia Subsystem (IMS), while recently introduced, has become one of the primary distinguishing features of the next generation of mobile telecommunication systems. IMS allows mobile operators to offer advanced value-added services - like VoIP, so-called push-to-media, video, interactive gaming, and mobile banking - to their customers timely and efficiently. Google's plans to enter the wireless world open up a world of possibilities for offering customers and businesses advanced services such as targeted location-based services and advertisements through the IMS framework.

Deploying IMS, however, is a non-trivial task. The core challenge for the telecom industry has been and will be the integration of the current radio access network (RAN) and IP transport infrastructure with the IMS domain. Within standardization bodies, efforts are underway to address the issues for call setup and mobility signaling, while developing unified user profile management and Quality of Service (QoS) architectures. The real goal is a standardized, IMS-centric, end-to-end unified signaling architecture.

To this end, this presentation provides an overview of IMS and QoS signaling over integrated RAN and IMS domains. By using an exemplary family media service, aspects and specifics of the end-to-end QoS invocation, control and policy enforcement, including roaming scenarios, are demonstrated. Based on laboratory measurements performed at Sprint-Nextel aided with simulations, the Post Dial Delay (PDD) delay is evaluated and some practical recommendations for delay reduction are presented. The presentation will conclude with discussion of open issues and viable solutions. This presentation should be of interest to Googlers who work on mobile related projects and intend to have a big picture of next generation mobile systems such as application development, and service and system integration with wireless operators.

This presentation is based on the article S. Zaghloul, A. Jukan, W. Alanqar: "Extending QoS from Radio Access to all-IP Core in 3G Networks - An Operator's Perspective," IEEE Communications Magazine, Sept 2007.

Speaker: Said Zaghloul
Fulbright alumnus and former Telecommunication Design Engineer at Sprint-Nextel
Research Staff Member, PhD Candidate
Institute of Computer and Communication Network Engineering
Technical University Carolo-Wilhelmina of Braunschweig, Germany

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[cueconnex]

Very interesting and educational. I have been preaching this concept for a few years and appreciate the confirmation included here.

[drayandrayan]

tres claire merci

[auspicious99]

oh, the part I meant was around 16:20

[auspicious99]

Good presentation. However, certain aspects could be made clearer. For example, in the slide on "what is IMS?", it lists certain key characteristics of IMS, like "access agnostic" and "inter-working with other networks", but first, it should be explained that IMS is a subsystem of cellular core networks with certain important features (list them)... once these basic features have been introduced, then characteristics like "access agnostic" make more sense

[omarsgrandson]

Thank you, so helpful

[capaneo]

lol, I love how google stole the idea at 5:30 for their latest iphone app.

[SandyShende]

That was a great presentation with lot of information in such a short time. I really liked the way he lined it and explained. Also liked the way he elaborated call establishing concept. Thank you very much Said Zaghloul and thanks Google Tech Talks for sharing this video!

[kashifkhi]

i am impressed. it really informative. but in this time more and more work requiring in telecommunication. something is missing in this lecture. but anyhow it is basic presentation.

[kashifkhi]

i am impress. it really informative. but in this time more and more work requiring in telecommunication.

[MrSaidBen]

Thanks, 

[LogiSenseCorporation]

Very informative. Nicely done.