Multimedia technologies forNGN mobile multimedia services

Marwan Jabri & Brody Kenrick

ITU-T Workshop onMultimedia in NGN

Geneva, 10-11 September 2007

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Dilithium - ITU-T NGN Workshop on Multimedia 2 September 2007

ITU-T NGN Definition (Y.2001)

Next Generation Network (NGN):

A packet-based network able to provide telecommunication services and able to make use of multiple broadband, QoS-enabled transport technologies and in which service-related functions are independent from underlying transport-related technologies. It enables unfettered access for usersto networks and to competing service providers and/or services of their choice. It supports generalized mobility which will allow consistent and ubiquitous provision of services to users.

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Dilithium - ITU-T NGN Workshop on Multimedia 3 September 2007

NGN and Multimedia

Key NGN features with respect to mobile services areQoS selection and control

End to end Quality of ServiceResource and admission control

Security and authentication

Expected NGN multimedia servicesReal-time conversationPush to XMessaging servicesPresence and notificationPoint to point interactiveCollaborative interactiveContent delivery (pull and push)BroadcastLocation-based

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Dilithium - ITU-T NGN Workshop on Multimedia 4 September 2007

Mobile Multimedia Today

We have “universal” voice telephonyInternationalTo and from many devices (PSTN and VoIP)Some service continuity

We have fractured multimedia services being delivered in many different waysVideo telephony is “catching up” but is still plagued by

Handset penetrationService coverageUser knowledge and acceptanceOnly 3GPP 3G324M (v. rare interworking)Strong interest in video value added service over-shadowing person to person interactive calls

Starting to see almost universal data accessRates are too slow for any multimedia in most cases

Other multimedia servicesPacket switched streamingPush to View (Video Share)Mobile TV (DVB-H, MediaFlo, DMB, …)

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Dilithium - ITU-T NGN Workshop on Multimedia 5 September 2007

Regardless of whether circuit- or packet-switched, customers of mobile networks face a number of quality of experience issues:

Service accessibility (call completion)Video qualityVideo corruption on air interfaceEnd-to-end delaysVideo/audio lip-synchVideo start-up time

Known Issues Affecting Mobile Multimedia Customer Experience

The issues can be in the handset, in the network infrastructure or in their interaction

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Dilithium - ITU-T NGN Workshop on Multimedia 6 September 2007

3G (UMTS) Multimedia bearersConversational still over circuit-switched bearers

Red path is what is used for conversational services today.Blue path is what is used for non-conversational services.

Public Land Mobile Network (PLMN)

Radio NetworkSystem (RNS)

RNC

NodeB

Core Network

Circuit Switched (CS)

Packet Switched (PS)

MSC

SGSN GGSN

GMSCCS

PS

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Dilithium - ITU-T NGN Workshop on Multimedia 7 September 2007

Challenges for Video Quality

Video quality can be significantly improved on a “better” network

Sustained Bandwidth3G/UMTS started to offer higher bandwidth (HSPA more so)PS Overheads still not solved in the real world (RoHC)

Latency3G/UMTS could not meet conversational requirementsHSPA can meet requirements in the lab but not yet “in the wild”

NGN promises concepts and architectures to provide better networks, but challenges remain in mobile access technologies

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Dilithium - ITU-T NGN Workshop on Multimedia 8 September 2007

Challenges for Multimedia Service Uptake

After media quality is better than satisfactory the technical battle is won

Still needBetter coverage and handset penetrationInterworking & convergence enhancementsCompelling video value added services

More interesting servicesMore contentSimplerUseful

More man to machine servicesSimple mechanisms to purchase/accesspremium content

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Dilithium - ITU-T NGN Workshop on Multimedia 9 September 2007

Video Value Added Services

Video Portal Live TV ParticipationTV

VideoBlogging

VideoPush

VideoKaraoke

Video CallCompletion to

Voice

BackgroundMusic

VideoSurveillance

Voice IVR Video

Overlay

Mobile/FixedConferencing

Video SMS

VideoMMS

VideoNetwork

Messages

VideoRing Back

Tones

Video Call Centers

AnonymousVideoChats

VideoMusic Juke

Box

Video Value Added Services are Being Launched Globally.

Which one will be the Killer App?

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Dilithium - ITU-T NGN Workshop on Multimedia 10 September 2007

Next Generation Network

Enabling the Convergent Video Environment

VIDEO APPLICATIONSVideo Sharing/Rich Media Calls

Blogging/PublishingVideo Ring Back Tones

Video PushIMS TV/Participation TV

Videotelephony & ConferencingStreaming/Portals (IVVR)

Video Call CentersVideo Mail Box

Surveillance/SecurityVideo Network Announcements

Video Call Back……

3G Video

Mobile/Fixed IMSWireless/Fixed

Broadband

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Dilithium - ITU-T NGN Workshop on Multimedia 11 September 2007

Video Blogging, Sharing, PublishingOverview

Enables mobile operators to play in the User Generated Content value chain.

Almost all 3G handsets are equipped with video cameras and are capable of making video calls.

Subscribers can publish their video content from anywhere/anytime by simply dialing a number and pressing a key. No browser/WAP waiting.

3G video quality is improving steadily – AVC/H.264 capable phones are around the corner.

Mobile operators can position themselves in the user content generated market and deliver a killer app to their subscriber.

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Dilithium - ITU-T NGN Workshop on Multimedia 12 September 2007

Video Blogging, Sharing, PublishingExample Use Scenarios

Video BloggingSubscriber dials portal number, or navigates via WAP interface and selects video bloggingSubscriber starts tele-recording (video immediately transferred to server)Subscriber can review video before publishing.Video is published (to restricted area if content is screened)Note: Service provider may show subscriber an advertisement targeted to them based on preferences or usage patterns

Video Store

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Dilithium - ITU-T NGN Workshop on Multimedia 13 September 2007

Video Blogging, Sharing, PublishingArchitecture

3G Network“1” Search Video

“2” Upload Video

“3” Manage Profile

“4” Top 10 Videos

Videoblogging Application

Home

Create Account

Manage profile

Search for videos

Upload Video

Support

Help

Internet

Video bloggingApplication Temporary

Store

VideoStore

Screener

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Dilithium - ITU-T NGN Workshop on Multimedia 14 September 2007

Video Push

Subscription Push:Customers can subscribe to event based video push

News, Sports, Weather, Finance, Telemarketing, TV Programs, …Daily briefs, highlights, …Breaking news (e.g. sports score, …)

When an event triggers (e.g. breaking news, sports score, horse race finishes) – VAS platform initiates video call to subscriber

If subscriber is busy, videos can be forwarded to Video Mail or subscriber folder (locker) for later viewing so they are never missed.

Additional Notification:SMS, Email, URL, …

Roger Federer just capturedhis 3rd Australian Open title

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Dilithium - ITU-T NGN Workshop on Multimedia 15 September 2007

Video Push Services

Service accessible from 3G Mobile networks, IMS and Broadband.

When not sponsored by ads service can be billed by minute-of-use or by event/transaction.

Service can also be sponsored by Ads. A brief ad (e.g. before seeing the pushed content) is shown prior to pushed content.

Web portal for user preferences and feature selection. Subscriber can select:

Notification service (e.g. Sports, News, etc…)Notification features (e.g. daily highlights, briefs, breaking news, …)Notification schedules (e.g. time, recurrence, …)

Subscribers can set and alter their preferences using a standard browser.

Roger Federer just capturedhis 3rd Australian Open title

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Dilithium - ITU-T NGN Workshop on Multimedia 16 September 2007

What could mobile endpoints do on the NGN?

Finally reaching a point where the environment provides capability beyond simple meeting minimum requirements for mobile multimedia

The NGN defines transport of data and aspects of mobility. Its limitations will define the boundaries of the services we can provide over NGN

NGN applications must be capable of filling the space up to those boundaries in order to extract the full value of the NGN.No other restrictions need be therePushing up to these limits will enable innovation and further evolve or create revolutionary services

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Dilithium - ITU-T NGN Workshop on Multimedia 17 September 2007

What could endpoints do on the NGN? AMS/H.325?

People will demand (and pay for) niche applications, but we can’t reinvent the wheels every time a new application is launched

Transport/QoS issues mainly solved by NGNApplications should be simple to build on top of that

AMS (“H.325”) can offerApplications independent of access network on loosely coupled collections of devices (“endpoints”)More innovation in the applications, less work in work on repeating work (and re-making the same old mistakes)System protocols friendly to emerging video services, mobile and fixed.

Thankyou!