IMS & Triple Play Services Architecture

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IMS & Triple Play Services Architecture

Brian Mahony, VP Marketing

Guillaume Widmer, CTO

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Distributed IMS Architecture

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IMS: A New Layered Network

Architecture Supporting Multimedia

IMS: A New Layered Network

Architecture Supporting Multimedia

• IMS is a next-generation

architecture designed by the

3GPP to support:

• Multimedia convergence of voice,

video, messaging and data

• Access convergence among

wireline and wireless networks

• IMS splits traditional (closed)

networks into independent

architectural layers

• Application / Service Layer

• Switching / Session Control Layer

• Connectivity / Transport Layer

• IMS creates converged networks

• Simpler & more standardized

• Packet-based (IP)

• Eliminates the need for expensive

Intelligent Networks style platforms

Application / Service Layer

IMS Servers

Application & Media Servers, Home Subscriber Server (HSS)

Switching / Control Layer

IMS Softswitches

P-CSCF, I-CSCF, S-CSCF, MGCF, MRF

Connectivity / Transport Layer

Network Connectivity

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IMS: The Enabler of Multimedia

Convergence

IMS: The Enabler of Multimedia

Convergence

Voice

SMS

Instant Messaging

Video

Voice

Video

Multimedia

Services

Presence Apps

Messaging

Gaming

Application

Sharing

Separate, single-media

communication sessions

Simultaneous, multimedia

communication sessions

Communication Today

Communication with IMS

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Overview of IMS Components

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Operator Benefits of IMS

•

Faster and easier development of new, differentiated

applications which reduce churn and increase ARPU and can be accessed by any network

•

Extend capabilities of existing applications

•

Enables rich and dynamic service combinations (e.g., mid-call multimedia; combined TDM/IP services in the same session)

•

Common application servers and switches can serve any type of access network

•

Lower financial risk of introducing new services, since they can run on existing platforms

Lower OPEX

•

New services can be integrated faster and cheaper

•

Lower interop costs since IMS is based on SIP and industry

standards

•

Lower maintenance costs due to reduced number of systems

•

Reduced costs thanks to single subscriber management across multiple networks

Lower CAPEX

New Services & Applications

I M S

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IMS Service Examples

• Voice over IP

• Push-to-talk, push-to-view, push-to-video

• Multiparty gaming

• Audio/Web/videoconferencing

• Rich calls, such as combining video and data

• Mobile IP Centrex

• Mobile Virtual Private Networks (VPN)

• Presence

• Group chat

• Multimedia advertising

• Instant messaging

• Unified messaging

• Personal information services, calendars and alerts

• Video streaming

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Access Control Access Control PBX IP Trunking MGCP H.323 SIP PSTN PLMN VoIP Network

Network InterworkingInterworking

Media Servers and Application

Media Servers and ApplicationSoftswitchSoftswitch

Class IV SBC SIP or H323 MyCall and Business Services Class V Solutions LDAP Call Control

User Service Profile

IMS Evolution Example:

Netcentrex Pre-IMS Architecture

IMS Evolution Example:

Netcentrex Pre-IMS Architecture

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PSTN

PLMN

VoIP

Network

Network InterworkingInterworking Call Session ControlCall Session Control

PBX IP Trunking MGCP H.323 S-CSCF I-CSCF P-CSCF + A-BGF SIP AS ( AS (NetcentrexNetcentrex)) AS AS (Third Party)

AS (Third Party) User Service ProfileUser Service Profile

AS AS HSS LDAP SBC BGCF MGCF/SGF MRF AS AS I-BGF SIP

IMS Evolution Example:

Netcentrex New IMS Architecture

IMS Evolution Example:

Netcentrex New IMS Architecture

3rd_Party Component New Netcentrex Component Existing Netcentrex Component

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Netcentrex IMS Roadmap

• AS (Application Server)

• MyCall and Business Services that run on standard platform Intel AdvancedTCA • Also Video Service Broker, Video Calling, and Video Mail applications servers

• MRF (Media Resource Function)

• MRF is available today, based MCS IP Media Server, supports Intel AdvancedTCA

• MGCF (Media Gateway Control Function)

• This Netcentrex IMS component is available today (current SMC-SS7)

• BGCF (Breakout Gateway Control Function)

• Class 4 functionality used by two of the three largest Class 4 service providers

• P-CSCF (Proxy Call Session Control Function)

• SBC functionality already in CCS softswitch platform including NAT traversal and PT • NeoTIP acquisition for increased IP security and A-BGF function for IP trunking

• I-CSCF (Interrogating Call Session Control Function)

• In addition to standard I-CSCF functionality, the Netcentrex I-CSCF supports pre-IMS (IETF SIP and H.323) environments for load-balancing purposes and LNP

• S-CSCF (Serving Call Session Control Function)

• Currently developing a S-CSCF that builds on Netcentrex’ carrier-grade expertise • Will connect to optional pre-integrated application servers and non-intelligent

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IMS Market Adoption

• Fixed Incumbents

• IMS gives fixed operators more powerful ability to manage subscriber identity • IMS allows incumbents to rapidly deploy new services to compete against ITSPs,

cable operators and other new operators

• Internet Telephony Service Providers (ITSPs)

• ITSPs are already network-agnostic

• IMS will allow ITSPs to easily develop applications and access other networks to also become MVNOs (if they embrace IMS standards)

• Cable Operators

• With IMS, cable operators can migrate from their initial TV focus to full triple play over a common infrastructure

• Mobile Operators

• Can implement IMS for applications such as Push-to-talk and WiFi integration • But to achieve the full benefits of IMS, mobile operators need to 1) fully upgrade

their networks to 3G; 2) build IMS client software into mobile handsets; 3) develop IMS compliant applications

• Mobile Virtual Network Operators (MVNOs)

• With IMS, MVNOs can develop network-independent applications which can be easily ported to different host-operators

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Triple Play Services Architecture

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Triple Play Based on a Converged,

Horizontal Architecture

Triple Play Based on a Converged,

Horizontal Architecture

Traditional Vertical Structure

2G/2.5G Mobile Network Switched TDM Network IP Data Backbone Broadcast / Cable TV Fixed Data Fixed Voice Mobile PSTN Services Mobile Services ISP Services TV Content

Emerging Horizontal Structure

IMS-based, IP Core Network WiFi

2G/3G

Converged Network

Access: Dialup, xDSL, Fiber, Cable, Satellite

Common Services

Voice & Video Switching Converged Services 3rd_Party Applications Multimedia Content Multimedia Devices IP Gateway

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Triple Play Platform Components

Access Domain

Subscriber Domain Softswitch, Call Control and Media Server

Domain NAT Enabled MGCP/L Edge Domain IP PSTN SMC IP MGCP/L CPE’s NAT Enabled MGCP/L SIP SIP SIP CPE’s SOFTSWITCH

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Service & Network Interconnection

• Class 5 IP Telephony, voice mail, and multi-device user self-care

• Video telephony, video mail and fixed/mobile convergence

N G N H E A D E N D

VIDEO TELEPHONY IP TELEPHONY VIDEO MAIL TRIPLE PLAY PORTAL VIDEO CONFERENCING 2G/3G mobile VoIP PSTN DSL WiFi Cable PLC

FIXED/MOBILE CONVERGENT APPLICATIONS

MULTI-DEVICE SUPPORT

FTTH

VIDEO SERVICE BROKER

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Triple Play Components and Interfaces

• Call Control

• Encoders: MPEG4-H.264;

MPEG-2

• Digital Rights Management

… place calls, forward calls, manage an address book, retrieve voice mail, place video calls. …review the current TV schedule, search the schedule, program recording of selected broadcasts. …search video content in a library, view

trailers and select and purchase videos on demand.

…review bill, pay bill, upgrade service package, set parental controls, subscribe to special offers.

• Portal/EPG + Voice and

Video Communication

• Middleware

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Fixed-Mobile Multi-Media Interconnection

Analog MPEG-2 MPEG-4 encoders H324m RTSP Audio Video FTP server Stored Media EPG TVoDSL, ETTH, FTTH 3G R99 3G R5 SIGTRAN MGCP Gateway SIP H323 SIP Translation H323 SIP To H324m Video Content TV on demand Clip, DVD on demand Video Telephony

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Media Server Attributes for Triple Play

• Universal access from any device

• Video enabled devices: 3G, PC, Video Phones and STBs

• From POTS: voice accessible from Video IVR and Video Mail

• Format conversion

• Protocol H323/SIP

• CIF to QCIF (mobile)

• Frame per second range for Fixed to Mobile: 25-15 fps to 7/8 fps

• Codecs

• G.722.2 Audio AMR

• H.264/MPEG 4

• Video portal

• Based on ubiquitous Voice XML and Video script standards

=> Rapid « kiosk » model deployment

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VoIP Network

Operator

Service

Provider

Hosting

Provider

Service

Logic Provider

Content

Provider

Prompts Pictures Videos FTP VXML PHP FTP • Content storage • Pre-prod, Prod, test platforms

Multi-Media/Video Content Value Chain

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Multi-Device Video Service Broker

PC/Webcam Video phone

Mobile

Voice & Video Telephony

Service Provider

Content Providers

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