icdcn2008tutorial paul part3

8/11/2019 Icdcn2008tutorial Paul Part3

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IP Multimedia Subsystem (IMS)

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Next Generation Services Architecture Based on IMSWeb PortalWeb Portal

Appl icat ionsAppl icat ions

SIP Endpoints

Media and

End PointLayer

Session

Control

Layer

Legacy IP Endpoints

H.323 and MGCP

SIP AppSIP AppAppl icat ion

Layer

SIP

Parlay AppParlay App

Parlay GWParlay GW

Element Management SystemElement Management System

Support SystemsSupport SystemsOperations, Maintenance,Fault Correlation, Billing

Mediation,

Access NetworkAccess Network

TDM

PBX

Anal og

Endpoint

PSTNPSTN

MediaMedia

GatewayGateway

PSTN andPSTN and

Legacy GatewayLegacy Gateway

SS7SS7

MGCFMGCF

MGCMGC

IN AccessIN Access

SGSGIP SignallingIP SignallingConverterConverter

Session and Resource ControlSession and Resource Control

MRFCMRFC

SS--CSCFCSCF

II--CSCFCSCF

PP--CSCFCSCFPDF

BGCFBGCF

Service ControlService Control

H.323 PBX

O

SIP LAG

HSSHSS

CentralizedCentralized

DatabasesDatabasesAAA, Profiles,

MediaMedia

ServerServer

O

SIP TAG

Session

Border

Controller

Support Systems


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IMS Entity Defini tions

Signaling Entities HSS - Home Subscriber Server or HSS Collective

CSCF - Call Session Control Function 3 flavors

BGCF - Breakout Gateway Control Function

MGCF - Media Gateway Control Function

MRFC - Multimedia Resource Function Controller

PDF - Policy Decision Function

AS - Application Servers provides services and applications

Bearer Entities

MGW - Media Gateway

MRFP - Multimedia Resource Function Processor

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Layering of IMS Solution

ENDPOINTS

SESSION

APPLICATION

USER DATA

Web Portal

IM VoIP VoD

Vertically Integrated

Arc hit ecture

IMS

Arc hit ecture

Common Resources Sharing of common data

Single user profile

Single Sign on

Integrated Web portal experience

Common Resources Sharing of common data

Single user profile

Single Sign on

Integrated Web portal experience

Session Control Walled access to applications

Prevents bit pipe hijacking

Hides endpoint idiosyncrasies from apps

Provides service interaction policies

Leverage investments across manyapplications and market segments

Session Control Walled access to applications

Prevents bit pipe hijacking

Hides endpoint idiosyncrasies from apps

Provides service interaction policies

Leverage investments across manyapplications and market segments

Access Ag nos tic Eliminates multiple service solutions

Supports global roaming

Consistent services / home network

Access Ag nos tic Eliminates multiple service solutions

Supports global roaming

Consistent services / home network

Simplified Converged Apps Common applications across Networks

Independent applications

Reduced interaction development costs

Integrated voice and data services

Underlying network hiding

Simplified Converged Apps Common applications across Networks

Independent applications

Reduced interaction development costs

Integrated voice and data services

Underlying network hiding


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Session andSession and

ResourceResource

ControlControl

Session and Resource Control Elements

Session Control

Provides walled access to applications

Appl ication in ter act ion contro l

Centralized n etwork r outing

Simplifies application development

Hides endpoint idiosy ncrasies from apps

Centralized Media Resource Control

Provides efficient scalable infrastructure

Leverage investments across many

applications and market segments

Access NetworkAccess Network

Trusted

Appl icati on

Servers

SIP

Trusted

GatewaySS--CSCFCSCF

II--CSCFCSCF

PP--CSCFCSCFPDF

BGCFBGCF

Service ControlService Control

MRFCMRFC

MediaMedia

ServerServer

Session

Border

Controller

HSSHSS



Centralized AA A and subscriber pr ofiles

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HSS is the master database in the IMS archi tecture

Logically it can be viewed as one entity

Physically can be made up of several physical databases

AAA Server

Provides IP based Authentication, Authorization, and Accounting functions

Typical Databases

Subscriber Profiles

Subscriber specific information t hat is used for service and feature authorization.

Dynamic Subscriber Information

Current session registration data (i.e.: S-CSCF Address, access network)

Network Policy Rules

Subscription resource usage, QoS, valid times and ro utes, geographical servicearea definitions, pol icy rules for the applications serving a user, etc.

Equipment Identity Register (EIR)

Information such as records of stolen equipment

Home Subscr iber Server (HSS) or HSS Collect ive

Centralized sharing of common dataCentralized sharing of common dataCentralized sharing of common data

HSSHSS




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SIP Proxies used to manage SIP sessions

Coordinates wit h other network elements

Session c ontrol, feature control, resource allocation,

Three flavors of CSCFs

Serving CSCF (S-CSCF) - Session control entity for endpoint devices

Interrogating CSCF (I-CSCF) - Entry point to IMS from ot her networks

Proxy CSCF (P-CSCF) - Entry point to IMS for devices

Functionally CSCFs follows Internet paradigms

P-CSCF I-CSCF S-CSCF

Stateless entities at network edge, stateful entities in core

Simple processing at edge, complex processing in core

Security and authentication requirements increase towards core

Call Session Control Function (CSCF)

Walled Garden control of sessions Walled GardenWalled Garden control of sessionscontrol of sessions

Session and ResourceSession and Resource

ControlControl

SS--CSCFCSCF

II--CSCFCSCF

PP--CSCFCSCFPDF

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Multimedia Resources

Multimedia Resource Function Controller(MRFC) Controls media resources in MRFP via H.248

Requests received from IMS elements

Generates CDRs

Multimedia Resource Function Processor(MRFP) Mixes incoming media streams (e.g. for multiple

parties)

Sources media streams (for multimediaannouncements)

Processes media streams (e.g. transcoding)

Tones and announcements

Access

Network

Access

Network

User

Equipment (UE)

Central management o f a pool of media resource serversCentral management of a pool of media resource serversCentral management of a pool of media resource servers

IMS AppIMS App

IMS AppIMS App

IMS AppIMS App

MRFCMRFC

MRFPMRFP

SS--CSCFCSCF

MRFPMRFP

MRFPMRFP


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Simplified IMS IPTV Functional Architecture

NASS: Network Attachment Subsystems

RACS: Radio Admission and Control Subsystem

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IMS-based Network Archi tecture


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Discovery and Selection of IPTV Service and

Establishment of an IPTV Session

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SIP Registration


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Basic Session Set-up and Termination using SIP

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Session Set-up with Successful QoS negotiation


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Session Set-up with Unsuccessful QoS negotiation

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Example Prototype Implementation of QoS using

IMS Network Elements


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IMS Subscriber to IMS Subscriber: Putting i t All Together

Control

Bearer

Called PartyCalled Party

Visited NetworkVisited Network

Called PartyCalled Party

Home NetworkHome NetworkCalling PartyCalling Party

Home NetworkHome Network

Calling PartyCalling Party

Visited NetworkVisited Network PP--CSCFCSCF

HSSHSS

SS--CSCFCSCFSIP

SIP

Diameter

PP--CSCFCSCF

ASAS

HSSHSS

SS--CSCFCSCF SIPASAS

SIP

Diameter

II--CSCFCSCF

Diameter

DNSDNS

Backbone

Packet

Network

Backbone

Packet

NetworkAccessAccess

Backbone

Packet

Network

Backbone

Packet

Network AccessAccess

Initiate SIP Invitation1

1

Retrieve Subscriber Profile (if needed)2

2

3

3 Apply Service Logic

Retrieve Address of CLD Party Home Network

and Forward INVITE.

4

4

Identify Registrar of CLD Party and Forward INVITE.5

5

Retrieve Subscriber Profile (if needed)6

6

7

7 Apply Service Logic

Forward INVITE to CLD Party8

8

SDP Negotiation / Resource Reservation Control9

9

RTP Stream

Ringing / Alerting10

10

Ans wer / Con nect11

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Summary of IMS

True converged Wireline/Wireless archi tecture Access agnost ic wi th ro aming between domains

Home control allows service differentiation and promotes roaming

Investment protection Walled session control avoids becoming a bit pipe

Managed network provides product and service diff erentiation

Highly adaptable bandwidth management and security

Guaranteed and adjustable QoS to meet individual customers needs

Common multi -market segment applications and databases

Same applications & cu stomer data available regardless of access method

Fosters and promotes the introducti on of new services Common IMS network for v oice and data allows for integrated mult imedia

services

Al lows th e in tegrat ion of d isparate ap pli cat ions by car rier i nst ead of suppl ier


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Outline of the Presentation

Industry Trends Convergence

Video over Internet

Multicast

Technology Trends

Challenges

Challenges for Video-over-Internet Service Provider (Open Net)

Challenges for Telecom Service Provider (Closed Net)

Opportunities

Novel Media Delivery Networks

Targeted Advertisements

Conclusion

Opportunities: Novel Media Delivery NetworksOpportunities: Novel Media Delivery Networks


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Video to TV is tightly controll ed by Cable and Satellite Operator

Cable/TV Set Top Box (STB) is tightly controlled by Cable Operators Cable STBs are proprietary platforms

Scientific Atlanta (now Cisco) & General Instruments (now Motorola)

No linux versions!

STB is NOT directly connected to Internet for t here is NO interface between STBand the Cable Modem

Movies cannot be downloaded into the STB without the help of Cable Operators

Can you bypass the Cable/Satellite Operators?

Cable/TV STB is notdirectly connected

to Cable Modem

Cable/TV

Network

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MovieBeam: Download Movies/Videos using wireless connection to

MovieBeam Player which plays directly on TV

MovieBeam is a brilliant new way to rent and watch movies at home.

Movies delivered directly to TV -- no cable, satellite, or computeris needed!

Movies are beamed wi relessly into the MovieBeam Player at home.

Amazing HD quality!

Acquired by Movie Highway!!

MovieBeam Player


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In-Network Video Transcoding and Caching

Video delivery syst em with c aching and scaling features

In-network services to support multiple platforms and varying network c apacity Caching of content closer to end-user based on preferences

INTERNET

Video Transcoding

& Caching Service

Fiber/DSL Access Network

Cellular Access Network

Transcoding Wireless

Gateway

Sun MicrosystemsAgn osti c Media Gri dCod er

A mu lt i-f or mat so ftware-based transcoding so lut ion

Turnkey solut ions for content encoding and application development to

deliver compelli ng TV and media user experiences on Java- enabled handsets.

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Agnost ic Media Frameworks and No Click Transcoding

GridCoder

brings High Performance

Computing architecture to

broadcast and media world

utilizes InfiniBand to move

over 30 Gbps at 17ms latency

resulting in massive

throughout improvements

4-30 x Real-Time speed!

Supportsformat conversions for audio, video,

images, document formatsall industry-standard video and audio

encoding formats (Windows Media,Real, MPEG-1, MPEG-2, MPEG-4,

AAC, APE, Flac, etc.)

transcoding of high-definition video

content

Providesfull image processing and format

conversion capabilitiesability to dynamically support new

transcoding technologies with minimalchange to existing applications

Integrates withsoftware and hardware-assistedtranscoding solutions

custom software or hardware-assistedtranscoding technologies

Modular frameworks:

Asset Management Framework

Media Processing Framework

Rights Management Framework

Application Framework


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Industry Trends Convergence

Video over Internet

Multicast

Technology Trends

Challenges



Opportunities

Novel media delivery networks


Conclusion

Opportunities: Targeted AdvertisementsOpportunities: Targeted Advertisements


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Interactive (viewer can interact with an ad)

Maui Golf Vacation

Transfo rming Television AdvertisementsFrom To

Passive (viewer can only see an ad)

Ford Escape 2005

Pull-based (pulled by viewer)

Save Share Browse Interest Buy

HawaiiVacation

Package

Vacat ion En ter tai nm en t Real Est at eSave Share Browse Interest Buy

Maui Golf Vacation 8-10

5-8

3-5

< 3

Push-based (pushed by advertiser)

Ford Escape 2005

Uniform (same ad seen by all viewers)

Tundra

Targeted (different ads seen by v iewers)

Business Owner Soccer Mom Young Adul t

Tundra Sienna FJ Cruise

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Industry Trends

Convergence

Video over Internet

Multicast

Technology Trends

Challenges



Opportunities

Novel media delivery networks


Conclusion


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Conclusion Trends in Digital Media Industry

Convergence of Networks and Services

Internet TV and IPTV are both Hot!

Multicast is Hot thanks to Mobile TV and IPTV

TechnologyTrends that are making video delivery over the Internet economically feasible: GB memories at significantly lower price points

Faster CPUs

Residential Broadband networks providing large bandwidth at low monthly rates

Broadband Wireless access

Improved Compression Technology

Challenges in Digital Media Delivery

Challenges for Video-over-Internet Service Providers (Open Network) Limited Video Delivery over the Internet (Content Source: existing TV/studios; limited # of channels)

Unlimited Video Delivery over the Internet (Content Source: anyone; potentially millions of channels)

Challenges for Telcom Service Providers (Closed Network) Set up high-throughput low-cost multicast trees in hybrid wired-wireless networks

Single Converged Network infra-structure for Quadruple Play (Video, Voice, Data, Cellular)

Deliver exactly the same video/TV channel to multiple devices in different networks

Opportunities in Digital Media Delivery

Novel Delivery Networks (MovieBeam)

In-network Trans-coding and Caching (Agnostic Media, Rhozet, AnyStream, Envivio, Thomson)

Targeted Advertisements (RelevantAd, Navic, Invidi, Visible World)

Digital Media Industry is at the Crossroads

Cable and Satellite are NOT the only television/video service providers

Telco: IPTV & New Generation TV/Video Service Provider: Video over Internet Opportunities abound: imagination is the only limitation

Thank you!!!Thank you!!!

Questions??Questions??

icdcn2008tutorial paul part3

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