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Serving the 3G Network FORCES Project Colloquium Martin Cookson BTexaCT [email protected] forces_a.ppt Overview • Commercial Environment • Network Evolution • Future Intelligent Strategy • Intelligence Technologies – SIP services – 3G Service Control – Integration • Open Networks • Service Creation Changing Market Environment Disruptive Technologies Wholesale growth Dial IP New markets, solutions, lower margins operating models shift to mobile voice, competition PSTN Business [revenue] PSTN Network [costs] competition increased volumes massive shift to data 1600000 LLU Calls Only Regulation Terabytes/yr CPS Lower cost alternatives 1400000 1200000 1000000 Data Voice - Mobile Voice - Fixed Source: OC&C 800000 600000 Technology 400000 200000 0 1997 1998 1999 2000 2001 2002 2003 2004 2005 3G Costs • £ 68 Billion spent on 3G licenses to date in Europe • Average of £2 billion per operator to build network • Drastic increase required in mobile revenues • Cannot be achieved just by voice • Essential to offer new services Information World Review, 01-Nov-2000, Reuters Packet Based Voice Networks Continue existing telephony services Extranet Integrated services Mobility Personalisation Ease of use Multiple Access Internet Customer Demands ADSL Inevitability & consensus WDM Support carrier grade telephony Justifiable on Intranet new services since does notN/W lower Core IP costs IP Telco Network Supplier push enterprise market saturated ATM/SDH GPRS & UMTS Common data & voice network Analogue/ISDN Existing transmission systems are reusable Network Evolution Call control Enterprise H.323 PSTN GSM Circuit switched networks Internet telephony Internet SIP 3G independence Managed IP Hyperlan IP VPN ATM Transport Packet based networks Staged Service Control Strategy Reduce cost base and speed-up delivery • network applications attractive to s/w industry • integrate with CPE 1 : IN Evolution Selected evolution of current intelligence • service continuity for voice services • review service profitability 2 : Soft Intelligence 3 : Intelligent Data Introduce soft intelligence solutions • exploit IP technologies • range of intelligence configurations Intelligence is not just about voice • flexible control of IP network • sessions services What is it? SIP is the Session Initiation Protocol “ … an application-layer control (signalling) protocol for creating, modifying and terminating sessions with one or more participants.” IETF RFC 2543 SIP services • Classic supplementary services • Classic IN services • Third-party call control • Finding a person / person-dependent routing • Multi-party services / conferencing • Multicast services • Integration with other internet applications Services can be implemented by anybody - in the network or at the edges SIP Service Control CPL= Call Processing Language CGI = Common Gateway Interface JAIN = JAVA Integrated Networks JAIN Home Subscriber Server JAVA Application Server 1 CPL SIP servlet executables SIP client CGI Application Server 2 SIP proxy action Call Server Java applet attachment SIP invite Application Server 3 IP Network 3GPP Release 2000 Network JAVA RMI CAP over IP SIP (network) APPLICATIONS SIP / SIP-T ISUP over IP HOME SUBSCRIBER SERVER SIP (access) CALL SERVER Location management ISUP CALL SERVER SGW DHCP DNS Radius RNC GPRS VLR RNC E-GGSN E-SGSN UTRAN GPRS SIP (network) IP ROUTER IP Core MGW PSTN PSTN / ISDN 3G Service Control Requirements • Flexible range of control interfaces • Evolution of CAMEL • Mobility and roaming • Customer profile based services • Service provision by home or visited network Call Server Interfaces 3rd Party Application Server Application Server Home Subscriber Server OSA Application Server CAMEL Service Environment SIP API Cx Location management & profile download API Mapping Function Serving Profile Database CAP IpSSF SIP Server Call Server Session Control State Machine Message Processor SIP CAP = CAMEL Application Protocol IpSSF = IP Service Switching Function Integrated applications Application Internet & multi-media domain WWW Server Email server games server Directories authentication Non-integrated, replication, missed opportunity, Telephony & real-time domain software Audio Server Conferencing Server Call Server IP Location Server software Integrated applications Integrated application domain WWW Server Email server Application JAVA based service creation New Application games server Directories MeXe application authentication IN Terminal capabilities software APIs Audio Server Call Server Application Server APIs Conferencing Server IP Router Intelligence domain APIs Location Server software 3rdPty Pty 3rd 3rd Pty 3rdPty Pty App 3rd App App App App Serving the Network App App App SLEE N/W App Server Provider Domain shared App Parlay, Open API JAIN, OSA N/W App Open API IN Call server gateway PSTN PSTN Network domain Network domain IP Network Parlay in the Network Parlay Applications Fire wall Application Server Enterprise Domain Hosted Application Server Intranet Internet The Parlay APIs Service Provider Domain Router Network Elements Managed IP network Parlay Parlay Gateway Gateway Network Elements PSTN SCP Network Security Boundary Network Elements Mobile Network HLR Expansion of Parlay Services Parlay 3 Specification Issued June 2001 PARLAY APPLICATION Gateway API API API API API API API Service Creation Evolution SOAP Switch independent, service creation tools BUT proprietary and IN specific IN tools Embedded software bundled into switch by switch supplier Network APIs open to software industry using general purpose tools (C++, JAVA) S/W tools IN API Application server API switch switch Call server network network network API Summary • Real time service control has a major part to play in realising an integrated and stimulating experience for the customer & as a secure, profitable, and flexible tool for the provider. • Think broadly and use common technologies • Networks rich in services will come thru open network interfaces. Service Creation • • • • • Enterprise Java Beans Simple Object Access Protocol (SOAP) API sets Call Processing Language (XML) Enterprise Application Integration • Mainstream application development • Create for the application server and terminal SOAP SIP Servlets