High Interest Subject: Service Platforms and Interworking of Services SOURCE: ATIS TITLE: Service Platforms and Interworking of Services AGENDA ITEM: GSC-11/GTSC4; 5.6 CONTACT: Wayne Zeuch (zeuch@lucent.com) GSC11_GTSC4_28 High Interest Subject: Service Platforms and Interworking of Services Prime PSO: ATIS Presenter: Wayne Zeuch GSC: Standardization Advancing Global Communications

Interworking of Services Service Platforms and Interworking of Services IP Network (e.g. DSL) IP Network (e.g. Cable) IAD IMS Application Servers IP Network & 802.11/802.16 Access IP Network (e.g. Enterprise) HSS Service Mediation Gateway Softswitch Media Gateway Circuit Mobile Network Packet Mobile Network IMS Vision: Access Independent Core Network GSC: Standardization Advancing Global Communications

Operations Systems, Security Service Platforms and Interworking of Services NGN Network and Services Vision Operations Systems, Security Applications Call/Session Control Transport & Access Services Packet-based (IP, MPLS, ATM, Ethernet) transport Service intelligence, in an IP-managed network Session and Service independent control Standards-based interfaces between layers Full service network (telephony, data, video, multimedia, mobility) Access to agnostic applications Security at all network layers Evolution to NGN standards promises service convergence across Wireline and Wireless Networks GSC: Standardization Advancing Global Communications

GSC: Standardization Advancing Global Communications Service Platforms and Interworking of Services Network Convergence Wireline Voice (Circuit & VoIP) Data Wireless Converged Packet Network IP Mobility Presence and Location Enabled Services Converged Multimedia Services Short Message Services Push to Talk IP Centrex Web Portal Service Control Wireline-Wireless Convergence Presence Enabled Follow Me Unified Call Log, Speed Call.. Dual Mode Handsets Wireless Centrex Network convergence enables new hybrid services Services should appear uniform across multiple networks GSC: Standardization Advancing Global Communications

GSC: Standardization Advancing Global Communications Service Platforms and Interworking of Services Definitions Service Convergence: From the user’s perspective, services operate in a sufficiently similar manner (minimal or no perception of changes when accessing from different service providers, through different devices or different access technologies). Service Continuity: From the user’s perspective, services operate in a sufficiently similar manner (minimal or no perception of changes) as the user moves the active service between access technologies and devices. Service Delivery Platform: An architecture that enables the rapid development, deployment and integration (convergence) of broadband, video, wireless and wireline services. An SDP can support many technologies including VoIP, Mobile Telephony, IPTV, HSD (High Speed Data), Online Gaming, etc. GSC: Standardization Advancing Global Communications

Vertically Integrated Services Service Platforms and Interworking of Services Service Convergence ENDPOINTS SESSION APPLICATION USER INTERFACE IM VoIP VoD … Current Vertically Integrated Services Proposed Open Services Arch. Convergence Opportunities 1) Portals 2) Services 3) Networks 4) Endpoints GSC: Standardization Advancing Global Communications

Service Convergence: One Example Service Platforms and Interworking of Services Service Convergence: One Example GSC: Standardization Advancing Global Communications

GSC: Standardization Advancing Global Communications Service Platforms and Interworking of Services Service Enablers - ATIS NGN Framework – (http://www.atis.org/topsc/priorities.asp) Service Decoupling Service Transparency Unified User Profile Wireline/Wireless Convergence Security QoS Resource and Admission Control Settlement Presence Multicast E.164/SIP Address Resolution Location-based Services DRM User control of profile/services Media Resource Functions Group Management Emergency Related Services NGN Management GSC: Standardization Advancing Global Communications

IMS Core to Many Networks Service Platforms and Interworking of Services Corp SIP Network SIP Hard Phone PSTN DSL, cable, etc Access Network Carrier Network MCU Enterprise IP Applications Farm Presence Server SIP Registry & Service SIP Network Mobile SIP Phone SIP Access Proxy SIP SoftPhone Wireless Provider (e.g. 3GPP) IMS SIP Network P-CSCF (SIP Access Proxy) Home Network Consumer Firewall / NAT SIP TA Black phone Gateway AR IP BE Carrier Applications and Cable/DSL Modem 802.11X Hot spot Um Interface Wireless AP Another IMS IMS Core to Many Networks GSC: Standardization Advancing Global Communications

GSC: Standardization Advancing Global Communications Service Platforms and Interworking of Services ATIS NGN Framework – Gap Analysis Assessment of NGN service enablers; progress of NGN standards development (GSC11_GTSC4_22) Service Decoupling - enables services to be defined and delivered independent of a specific "vertical” network function; enables a flexible service environment, including third party services Gaps: application/end user access to service capabilities, resource control Service Transparency - enables services to evolve independent of the network Gaps: service interworking with non-NGN, maintain Internet end-to-end transparency (NATs, Firewalls) in NGN Unified User Profile - enables service capabilities to be accessed from a range of devices and locations Gaps: Web Services, IPTV GSC: Standardization Advancing Global Communications

NGN Services Architecture - based on IMS/OSA IN Services - Calling Name - LNP - Routing 3RD PARTY SERVICES SCP PARLAY APPLICATION SERVERS OSA GW IM-SSF Open Service Access GW - Registration - Billing - 3rd Party Call Control APPLICATION LAYER Session Control - Registration - QoS Mngt - Security SIP-ISC SESSION LAYER CSCF Diameter HSS Wireline and Wireless Endpoints SIP HSS - Subscriber Data Wireline Access Wireless Access END POINT AND GW LAYER MEDIA SERVER SG & MEDIA GW PSTN Open standard interfaces Service transparency across wireline and wireless access networks User data shared across applications Supports 3rd party Application Service Providers (ASPs) CSCF – Call Session Control Function ISC – IMS Service Control GPRS – General Packet Radio Control IM-SSF – IP Multimedia Service Switching Function IMS – IP Multimedia Subsystem HSS- Home Subscriber Server OSA-GW SG – Signaling Gateway GSC: Standardization Advancing Global Communications

Network Protocols/Interfaces What is OSA/Parlay? Open Service Access (OSA) has been developed as part of the 3GPP specifications in coordination with ETSI and Parlay (and liaisons with 3GPP2, OMA, and others). The Parlay Group is a multi-vendor consortium formed to develop open, technology-independent APIs that enable the development of applications that operate across multiple networking environments. Applications are independent of underlying network technologies and can be hosted inside or outside Network Operator Domain CORBA,SOAP/XML Appl SCS Parlay/OSA SCF APIs Parlay/OSA Gateway Parlay defines standardized interfaces as specifications - Service Capability Features (SCF) One or more SCF’s are implemented as Service Capability Servers (SCS) and are –provided by Network Vendors as a Parlay/OSA Gateway The SCS implementation maps the Parlay interface to the network protocol/interface Fixed Mobile IMS Internet Network Protocols/Interfaces GSC: Standardization Advancing Global Communications

Service Mediation Gateway Intranet Internet Internal Applications External Applications Ext. Content Provider Int. Content Provider Service Mediation Gateway based on Parlay/OSA Open Standards Provides standardized set of APIs defined by Parlay/OSA Provides Uniform, Transparent Access to Services - Hides Network Complexities Provides Centralized, Secure, Controlled Access to Services Faster, Simplified Application Development (Reduced Costs) using commercial mainstream programming languages, software, tools, etc. (Java, C++, XML) – Converges Telecom/IT Worlds Expanded Portfolio of Applications - Opens, Extends Application Creation to ISVs, ASPs, and Content Providers (New sources) New, Enriched, Personalized Applications Applications can be Hosted by Network Operator or by 3rd Party (ISP, Enterprise, etc.) New Business Models, New Revenue Streams Enterprise Service Mediation Gateway FW DIR* GMS PAM CHAM US UL CC/UI PM Parlay/OSA Corba, Parlay X (WS) APIs DSC Network Operator Note: ISG is built on the AHE, a converged next generation voice-data platform for hosting applications and services. This diagram shows how ISG would look in the network. As shown in the diagram, it is assumed that there will be a firewall between the service provider and enterprise networks. ISG implements the Parlay standard APIs through a set of service capability servers (known as SCSs). Service capabilities map the standard APIs to the network services using the network interfaces and protocols. This slide boils down the Intelligent Mediation Function’s essence. Protocol Interfaces to Network Elements on the bottom, Industry Defined APIs on the top, and middle ware to glue them together. These are the potential for network elements the ISG can hook up to. Some are naturals for today’s Intelligent Network … SCPs and HLRs for example. Others take today’s IN and stretch it. For example, instead of treating Prepaid as a self contained service, what if there were protocols to interact with parts of a Prepaid service. It becomes easy for Prepaid to be combined with other capabilities for better services. Pick out a few more capabilities - Mail, GMLC, Softswitches for example, and emphasize that their value becomes much greater if they are linked together. Network Protocols/Interfaces Mobile Fixed IMS Internet Deployment Flexibility/Options While Controlling Access to the Network GSC: Standardization Advancing Global Communications

GSC: Standardization Advancing Global Communications Service Platforms and Interworking of Services Work on Convergence ATIS Packet Technologies and Systems Committee (PTSC) PTSC Issue S0044 Service Continuity Between Access Networks Work has just started on an aggressive schedule As Next Generation Networks (NGNs) evolve and are deployed, there will be an increasing need to provide continuity of service as the subscriber transitions from one access network to another Must have a consistent user perspective Service delivery needs to be access independent Not Just Voice but Multimedia GSC: Standardization Advancing Global Communications

GSC: Standardization Advancing Global Communications Service Platforms and Interworking of Services Work on Convergence ATIS Wireless Technologies and Systems Committee (WTSC) WTSC Issue P0012 Voice Call Continuity (VCC) seamless continuity for voice calls that move between the two types of networks (between cellular networks and non-cellular networks (e.g., wireless LAN networks)) Contributions to ongoing work in 3GPP GSC: Standardization Advancing Global Communications

GSC: Standardization Advancing Global Communications Service Platforms and Interworking of Services Summary Service convergence is a major focus in the Next Generation Networks vision NGN Service Architecture enables service transparency across networks and secure access to new and innovative applications NGN service architecture supports converged text, voice, data, video, and multimedia services Work needs to continue to address gaps in standards required to realize true service interworking Service Architecture and Interworking standards are evolving to address the requirements of the NGN vision GSC: Standardization Advancing Global Communications