1. 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
GSC11_GTSC4_28
High Interest Subject: Service Platforms and Interworking of Services
Prime PSO: ATIS
Presenter: Wayne Zeuch
GSC: Standardization Advancing Global Communications

2. 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

3. 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

4. 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

5. 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

6. 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

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

8. GSC: Standardization Advancing Global Communications
Service Platforms and
Interworking of Services
Service Enablers - ATIS NGN Framework – (
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

9. 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

10. 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

11. 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

12. 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

13. 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

14. 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

15. 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

16. 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