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									                IMS for MMoIP(VoIP) Service in
                               Cable Network




Hai-Young Yang
Director
Lucent Technologies Korea

June 13, 2006
What is IMS?
 An IP multimedia and telephony core network
 IMS is defined by 3GPP and 3GPP2 standards organizations
 Based on IETF (internet) protocols
 IMS applies equally well to wireless and wireline access
   carriers
   – Supports IP to IP sessions over cable, DSL, 802.16, 802.11,
     CDMA packet data, GSM/EDGE/UMTS packet data, etc.
 Equivalent to IP telephony systems being invented by some
  operators such as Verizon wireline. Both use IETF
  protocols. But IMS is standards-based.


  Business Implications: IMS cost-effectively enables lifestyle-
  targeted, blended services, positioning the operator to “own” the
  subscriber regardless of how they access the network

                          Lucent Technologies – Proprietary
                         Use pursuant to company instruction          2
IMS - Industry Standard Architecture
                                                  IMS (IP Multimedia
                                                    Subsystem) is:
                                                Same framework for any kind of
                                                 access (wireless or wireline)
                                                 and any kind of traffic – VoIP,
                                                 data, multimedia, supporting
                                                 multiple clients and endpoints
                                                Defined with Open Standard
                                                 Interfaces -> 3GPP and
                                                 3GPP2, and based on IETF
                                                 Protocols (SIP, VoIP, RTP, ...)
                                                Standardized interfaces between
                                                 applications, core & transport
                                                 network layers, and back-office
                                                 systems
                                                Provides coordination or
                                                 synchronization as required
                                                Capable of Interworking with
                                                 PSTN and Legacy IN Based
                                                 Services (8xx, LNP, etc)
                 Lucent Technologies – Proprietary
                Use pursuant to company instruction                        3
IMS Benefits
For End-Users                                   For Service Providers
Common contacts across services                 Retain ownership of the subscriber
    –   Enterprise & personal lists, enhanced       –   Provide better quality services than IP
        with capability indicators                      today avoid migration of value to the
                                                        client device
Multimedia enriched
 communication                                  Differentiate services from
    –   Multiumedia information can be sent      competition and sell more
        and received during a voice call         services
                                                    –   Choose the applications to create
Voice enriched data applications                        blended services;
                                                    –   Home control same services even
                                                        when the user roams
Predictable service interactions                More cost-effectively deliver high
    –   Operator can set defaults for service    value, new lifestyle services to
        interactions to maximize ease of use
        and service quality;                     market
    –   Subscribers can set policies on how         –   Minimize client-server airlink traffic by
        they want their services handled,               leveraging IMS network information
                                                    –   Reduce costs of new services through
                                                        common applications infrastructure
                                                Reduced OPEX
                                                    –   Centralised data and common
                                                        functions
                                                    –   Standardised QoS, roaming, billing




         Building Blocks for Lifestyle Targeted Blended Services
                            Lucent Technologies – Proprietary
                           Use pursuant to company instruction                                  4
               The Real Opportunity: Blended Services,
               Not Just Bundled Services
                                 Bundling alone will not create
                                 Bundling alone will not create                                                § Bundling alone will only shrink the
                                                                                                               § Bundling alone will only shrink the
                                  lasting incremental value.
                                   lasting incremental value.                                                     customer’s spending as value is
                                                                                                                  customer’s spending as value is
                                                                                                                  eroded
                                                                                                                  eroded

                                250
                                                                                  Bundling drives
                                                                                  commoditization
                                                                                                               § Seamless blending of voice
                                                                                                               § Seamless blending of voice
                                                                                                                  (wireline and wireless), data and
                                      HDTV              VoD
                                      Premium Video     Digital Video             and price erosion               (wireline and wireless), data and
                                      DVR               Basic Video
                                                                                                                  video services required to realize
                                                                                                                  video services required to realize
                                                                                                                  full revenue potential
                                                        Long Distance
                                200   Broadband Data
                                                                                                                  full revenue potential
Monthly ARPU




                                                        Voice
                                                        Local Voice
               (U.S. Dollars)




                                                        Wireless Voice
                                150                                                                            § Providers with scale and wireline + Driven
                                                                                                                                             Feature
                                                                                                               § Providers with scale and wireline +
                                                                                                                  wireless networks will have an
                                                                                                                  wireless networks will have an
                                100                                                                               advantage
                                                                                                                  advantage
                                 50
                                                                                                               § Providers with a strong convergence
                                                                                                               § Providers with a strong convergence
                                                                                                                  story/vision will flourish and dominate
                                                                                                                  story/vision will flourish and dominate
                                  0
                                       Voice           Voice            Voice, Video
                                        Only           & Data              & Data


     • Everyone is bundling to retain subscribers.                                                                    Blended services = Increased
                                                                                                                      Blended services = Increased
     • Bundling simplifies billing - does not reduce                                                                    revenues, customer loyalty
                                                                                                                        revenues, customer loyalty
                            other OpEx.

                                                                                                                                Source: Adapted from “Telcos Take on Cable with Video
                                                                                                                                 Delivery,” The Yankee Group, February 2004, page 8.

                                                                                        Lucent Technologies – Proprietary
                                                                                       Use pursuant to company instruction                                                 5
      ARPU Increases With Lifestyle Services
    New Services = New Revenues For Service Providers
$4B
     40% increase in
     revenue-per-year                       Lifestyle Services
                                                                                       - Rich media
                                                              Activity LIFESTYLE          entertainment
$3B                                                            Agent DRIVEN
                                                        Portable                       - Interactive
                                               IP TV     Travel
                                                         Agent                         - Context sensitive
                               Unified Live Wire                                       - Highly personalized
$2B                         Communications
                                       Location-Based                      FEATURE
                                          Service                          DRIVEN
$1B                                                                              INCREMENTAL
               Instant          Push-to-               Media/                        MONTHLY
              Messaging           Talk                 Content                          ARPU
                                                                                                  $5.47
 0
      2004          2005            2006                2007
                                                                                      $1.23       $3.34
 Source: Lucent Primary Market Research and Modeling, 2004
                                                                                      $1.70
                                                                                      2004         2007
             Lifestyle services help the operator maintain relationships with
              Lifestyle services help the operator maintain relationships with
                   subscribers, regardless of how they access services
                    subscribers, regardless of how they access services
                                    Lucent Technologies – Proprietary
                                           Use pursuant to company instruction                            6
  To Deliver Lifestyle Converged Services, the Approach
  to Service Delivery Needs to Change

                                                                                             •   Today’s point
                                                                                                 solutions are
                        Current                                                                  expensive and don’t
        Vertically Integrated Services Converged Services Arch.                                  readily support new
                 Data   Voice   Video                                                            ‘lifestyle’ targeted
USER INTERFACE                                                                                   blended / converged
                                                                                                 services
  APPLICATION     D      D        D     …                       …                            •   Core Networks need
                  B      B        B
                                                                                                 to embrace a
    SESSION
                                                                           Subscriber Data       Service Delivery
                                                                                                 Framework that
   ENDPOINTS                                                                                     enables blended
                                                                                                 services




               Key Attributes: Distribution, Consolidation, and Convergence
               Key Attributes: Distribution, Consolidation, and Convergence
                                             Lucent Technologies – Proprietary
                                            Use pursuant to company instruction                                 7
IMS is a Services Architecture
for Cable Operators
Mobility is an essential component of the consumer &
  business offers
   – ILECs are implementing “grand-slam” bundles – MSOs must match
   – IMS and IP architectures enable greater ARPU, margin, stickiness and
     overall operational efficiency
Competitive advantage can be achieved by adoption of a
  common network and application platform
   – Economies and new services potential
     are better with cable + cellular
   – Content and Applications (not price)
     become the differentiator
   – Unique content-rich services can lead
     the consumer market & take share
   – Will protect against bundle-churn and
     excessive bundle discounting


  An IMS Services Architecture allows a Service Provider to “own” its
   An IMS Services Architecture allows a Service Provider to “own” its
  subscribers even when using elements of other operators’ networks
   subscribers even when using elements of other operators’ networks
                           Lucent Technologies – Proprietary
                          Use pursuant to company instruction               8
  Packet Cable Access in IMS Architectures
Home                                Unified Suite of Communication Services
Application                    VoD        Telephony     Messaging      Gaming
Layer                         Servers       Servers      Servers       Servers

Home
Session                                   S/I-CSCF                       HSS
Control
Layer                                                                                   IP/MPLS
                                                                                       Transport
                                   Private line/                 Cable
                                  Ethernet/WiFi                                       DSL
Access           UMTS/CDMA                                       P-CSCF
                                                                                Session Border Controller
                                     P-CSCF
Layer              P-CSCF                                          PDF
Home or                           PDF        RACS                                  P-CSCF          PDF
Visited             PDF                                       PCMM Policy
Access                              WLAN GW                     Server
                   Wireless                                                        BRAS         RACS
Network           Packet GW

                                      Router/FW                         CMTS            DSLAM
           HLR
                                      Enterprise                 Cable Access        DSL Access
                      AAA
          SGSN                           LAN                       Network            Network
                      CDMA     Public                                   Modem           Modem
          UTRAN                               802.11 Access
                       RAN    Hot Spots           Points




                                   Lucent Technologies – Proprietary
                                  Use pursuant to company instruction                                    9
CableLabs Selected:
IMS Architecture with PCMM Cable Access
                                                                                              • Extend IMS QoS Policy Decision
                          Application
                            Server
                                              ...      Application
                                                         Server                                 Function (PDF) to interface with
            HSS                                                                                 PCMM Policy Server
                                Service Broker
                                                                                              • Allows cable subscriber use of IP
         I-CSCF                      S-CSCF                      MGCF
                                                                                                Services from peer IMS access
         P-CSCF       Gq               IP Transport
                                                                 MGW         PSTN               networks (e.g. cellular)
                  (Diameter)             Network
                  PDF
                                                                                              • Support for WiFi/cellular roaming
                     Go                                                                         and session handovers
                  GGSN                    COPS                PCMM                            • Peering interfaces for:
                                                     Policy
  Gm                                                 Server
                                                                        CMTS                      Ø Interconnect/inter-operability
 (SIP)                      SGSN
                                                                                                  Ø Subscriber authentication
                               RNC                                   Cable Access                   and roaming
           UMTS/GPRS
                                                                       Network
           Radio Access                                                                           Ø MGW/MRF sharing (vocoding)
             Network           BTS
                                                       SIP                                        Ø Accounting records
                                                                       Cable
                                                                       Modem         POTS           exchange
                                                          SIP                       Devices
                                                                        S-MTA




                                                     Lucent Technologies – Proprietary
                                                    Use pursuant to company instruction                                    10
   What the standards give us: PacketCable 1.x and 2.0
     •NCS is the underlying protocol for 1.x
     •SIP is the underlying protocol for 2.0
                                                                                                 PacketCable 1.x (not illustrated)
                                                                           Source: CableLabs
                                                                                                 • Cable specific definition
  Draft 2.0 Architecture                                                                         • Narrowband VoIP focused
Applications
                        Application    Application   Application                                 • QoS
                         Server-1       Server-2      Server-3
and Services                                                                                          •   Via DQOS mechanism
                                                                                                 • Well defined and in deployment
                                                         Presence/                     User
                                                                                                 PacketCable 2.0 (Illustrated)
  Core                            Service Proxy         Registration
                                                          Server
                                                                                      Database
                                                                                                 • Cable specific definition
                                                                                       OSS
                                                                                                 • Supports multimedia services
                                                                                                      •   Text, data, gaming, voice, video,
  Edge                                Edge                                                                …
                                      Proxy
                                                                                                 • QoS
                                                                                                      •   Uses PCMM
 Access        QoS
               Policy
                           PCMM
                                      CMTS
                                                                   Stun/
                                                                   Turn
                                                                                                 • Under definition

                  SIP UAs                                   NAT/Firewall




          CableLabs adopted IMS as a standard architecture of PacketCable 2.0
          CableLabs adopted IMS as a standard architecture of PacketCable 2.0
                                                        Lucent Technologies – Proprietary
                                                       Use pursuant to company instruction                                          11
     Services Drive Underlying Cable Operator Infrastructure
     Decisions – SIP and / or NCS
                                                                                    Value, RPU, Differentiation
•   Cable services today        time


    are vertically oriented                            Video
                                                                           High Speed
                                                                              Data
                                                                                                  Narrowband
                                                                                                     VoIP
                                                                                                                          Broadband
                                                                                                                          Multimedia                    Converged

•   Beyond traditional
                                            • Analog /Digital Bcast
                                            • PPV
                                                                    • Internet access
                                                                    • IP streaming video   • POTs residential
                                                                                                                  • Games
                                                                                                                  • Video Tel / IM / Conf
                                                                                                                                                  • Wireless / cable
    video, IP provides a
                                                                                                                  • Collaboration
                              Services      • VOD
                                                                    • etc.                 • Enterprise           • Personalized                  • etc.
                                            • etc                                                                 • IPTV

    common logical                                                                                                • etc.


    transport layer for                                                                    • Softswitches

    data, IP video, voice,    Session / resource Control                                   • Gateways
                                                                                           • etc.
                                                                                                                  • Applications mgr              • Session mgr


    broadband
    multimedia and                                                                             NCS                                          SIP
    converged services                  Protocol


•   NCS supports
    narrowband VoIP                    QoS (Access)                                            DQoS                                    PCMM

•   SIP supports a wide
    variety of services
    ranging from                   Logical transport                                                              IP

    narrowband VoIP to
    converged services
                                         Mac / Phy                                                     DOCSIS 1.1 -. 2.0 -> 3.0




                 Where do you want to be and how do you get there?
                 Where do you want to be and how do you get there?
                                               Lucent Technologies – Proprietary
                                              Use pursuant to company instruction                                                                             12
PacketCable 1.x
The Softswitch Model
   Application   Application                   Designed for voice, not
                                                 multimedia
      Softswitch (CMS)                         Optimized for legacy endpoints
    Embedded
     Services
     MTA       SG Subscriber                   Focused on primary-line features,
    Contro MGC      Data                         not multimedia
       l
   NCS                  TGCP                   Separates media from control,
                                                 but not services from session
                         Trunk
     MTA
                          GW                     – limited opportunity for OPEX
                                                 savings
              IP                 PSTN
            Network                            Proprietary application server
                                                 interfaces- difficult to add new
                                                 3rd party services
 Increasingly, Cable operators are
 viewing this approach as limiting             Does not address convergence
    the opportunity for growth                   with wireless


                                   Lucent Technologies – Proprietary
                                  Use pursuant to company instruction               13
Next Generation VoIP Networks
The IMS Model
 App         App            App                                § Focus on revenue growth from new services
                                                                   and applications
 Service                                                       § Infrastructure designed for voice, data,
Brokering            HSS                                           multimedia and other applications
                   Common
 Session             Data                                      § Optimized for new endpoints (next
 Control
                                                                   generation VoIP clients) and new access
                                        MGC / SG                   technologies (VoDSL, VoBB, 802.11, 802.16,
 SIP                                                               etc)
                               SIP
          IP
                                       Trunk GW                § Legacy endpoints can be adapted to provide
       Network                                                     ubiquitous services across all endpoints
                     SIP   AGCF
       SIP   SIP
                                          PSTN                 § Separation of functions optimized for next
                    SIP Line                                       generation services: session, data,
                   Access GW         Legacy                        applications, PSTN interfaces
                                      LAG
                                                               § Well defined application interfaces for easy
                                                                   to deploy third-party services
                                                               § Converged architecture for simultaneous
                                                                   fixed and wireless access
  CableLabs selected IMS as a
   foundation technology for
       PacketCable 2.0

                                               Lucent Technologies – Proprietary
                                              Use pursuant to company instruction                           14
Transition from PacketCable 1.x to IMS
   Application   Application                              App           App            App


      Softswitch (CMS)                                   Service
   Embedded                                             Brokering               HSS
                                                                              Common
    Services                                                                    Data
    MTA       SG Subscriber                               Session
   Contro MGC      Data                                   Control
      l                                                    SIP
                                                                                                   MGC / SG
                                                                                          SIP
   NCS                  TGCP                                         IP
                                                                  Network                         Trunk GW
                         Trunk                                                  SIP   AGCF
     MTA                                                         SIP    SIP
                          GW
                                                                                                         PSTN
                                                                                 Line
              IP                 PSTN                                         Access GW         Legacy
                                                                                                 LAG
            Network




 All the functional elements map from the Softswitch model to the IMS model,
                  but transitions are expensive and error prone.
        Better to start with the IMS architecture, rather than evolve to it .


                                   Lucent Technologies – Proprietary
                                  Use pursuant to company instruction                                           15
SIP vs. NCS




               Lucent Technologies – Proprietary
              Use pursuant to company instruction   16
Architecture Alternatives – By Primary Signaling Protocol




                     Lucent Technologies – Proprietary
                    Use pursuant to company instruction   17
Lucent Cable Services Solution




               Lucent Technologies – Proprietary
              Use pursuant to company instruction   18
       Breadth of MMoIP Services
   Professional
                          NETWORK                 RELIABILITY &               NETWORK                 NETWORK, OSS &             OPERATIONS
    Consulting:           BUSINESS                  SECURITY                  READINESS                APPLICATIONS               ANALYSIS &
   Define a viable       CONSULTING                                          ASSESSMENT                   DESIGN                 OPTIMIZATION
and secure MMoIP                               Assess strength of
                     Develop MMoIP             network security,         Assess network             Create the solution       Analyze existing
         solution                                                                                   architecture & network
                     business model,           design and implement      features, capacity, and                              operations against
                     market entry strategies   elements to enhance       recovery needed to         infrastructure to         best practices, and
                     and technology            security, and enable      support MMoIP, to          support MMoIP with        support developing
                     options, defining a       ongoing business          validate transmission      the existing network &    new operations
                     blueprint for             continuity and disaster   capabilities and service   systems                   models to support
                     transformation            recovery                  quality                                              multimedia services


   Deployment:           SOLUTION                   PROJECT                  HEAD END                 ENGINEERING &             INTEGRATION &
     Create and         VERIFICATION              MANAGEMENT               CONSTRUCTION                INSTALLATION               VALIDATION
    implement a           TESTING              Establish plans, scope,   Deploy head end            Perform detailed         Conduct field
  MMoIP solution     Configure a lab           controls, and tracking    equipment per design       engineering and          integration and
                     environment and test      processes to guide the    specifications,            installation of          validation of end-to-
                     to validate the           implementation of         including site survey,     associated equipment     end systems
                     interoperability of       solutions; manage         antenna orientation,       and Service              components across
                     products and              vendors and final         video signal reception     distribution hierarchy   multiple systems and
                     components as part of     acceptance processes      tests and content                                   across the network
                     the overall solution                                acquisition tests

Maintenance &
                      TECHNICAL SUPPORT & HARDWARE MAINTENANCE                                    NETWORK & SECURITY MANAGEMENT
 Management:
                     Deliver remote support via phone, modem or VPN, for rapid        Provide ongoing remote network management of an MMoIP
   Outsource key
                     response, diagnosis, & resolution of system issues &             solution using state-of-the-art tools and technology, as well as
     elements of
                     outages, ensuring system currency with most up-to-date           highly skilled technicians, ensuring 24x7 service
  MMoIP solution
                     software fixes



                                                     Lucent Technologies – Proprietary
                                                    Use pursuant to company instruction                                                      19
   VOIP Network & Back Office Integration
                 BSS
                                 Cust Care & Billing        Mediation
                                                                                                 VOIP SI
                                                                                                 VOIP SI
Backoffice      OSS
                                                                                         Multi-vendor VOIP SI
                        Provisioning    Perf Mgmt      Fault Mgmt   Svc Mgmt
                                                                                         Multi-vendor VOIP SI
                                                                                            –Network, Backoffice
                                                                                            –Network, Backoffice
                                                                                         Residential and Business
                                                                                         Residential and Business
                                                                                          end-users
                                                                                           end-users
                                       Softswitch #1                                     Bell Labs VOIP QoS,
                                                                                         Bell Labs VOIP QoS,
                                                              Media Gtwy             P   reliability analysis
                                                                                          reliability analysis
             Applications                                                                Multi-year multi-vendor
                                                                                          Multi-year multi-vendor
                                                                                     S
                                                                                          maintenance
                                                                                           maintenance
VOIP               Messaging           Prepaid, SMS       Announcements      STP

                                                                                     T
Network                                                        Media Gtwy
             Security
                                       Softswitch #2                                 N



                                 IP/MPLS
                                Data Network
                                HFC network
     Linking and testing of system components to merge their functional and
       technical characteristics into a comprehensive, interoperable system
                                                Lucent Technologies – Proprietary
                                               Use pursuant to company instruction                              20
Testing & Operational Readiness
                                                                  Validation Requires
      System level
    System level                                                   • Functionality Testing
       integration
      integration                  Validate
                                 End to End                        • Operational Testing
     verification is
   verification is
   critical to overall
  critical to overall            Architecture
         success
        success
                                 Validate
                         System Level Performance
                               Validate
                     Sub-System Level Performance
                Telephony                             Core Network
                OSS/BSS                               Security

                   Validate Component Level Performance
      Call Server                                   Signaling Gateways
      Media Gateway Controller                      Media Gateways
      Media Servers                                 Application Servers(Voice Mail, SMS)


                             Lucent Technologies – Proprietary
                            Use pursuant to company instruction                            21

								
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