EMC/QX/R-04:063 Uen Rev A CDG IR Team IP MultiMedia Subsystem (IMS) New Service Possibilities Alain Bouvier CDG International Roaming Team Meeting Kauai, December 13-14, 2004

EMC/QX/R-04:063 Uen Rev A CDG IR Team Covering…  IMS Overview;  IMS Interworking & Roaming;  Ericsson IMS offering.

EMC/QX/R-04:063 Uen Rev A CDG IR Team Main IMS Standardization groups  3GPP TSG SA WG2 (Architecture);  3GPP TSG SA WG1 (Services);  3GPP2 TSG-X WG MultiMedia Domain (MMD);  3GPP2 TSG-X WG MultiMedia Services (MMS).

EMC/QX/R-04:063 Uen Rev A CDG IR Team Third Party Statement On IMS “In the next 18 months, carriers will implement IMS platforms largely for specific applications, creating beachheads for its market penetration. Beyond that, IMS will become a standard service environment for wireless operators and for creating converged mobile and fixed services.” (Source: Yankee group March 22, 2004)

EMC/QX/R-04:063 Uen Rev A CDG IR Team IMS Momentum  The OMA (Open Mobile Alliance) “IMSinOMA” Requirements Document (RD) provides a single general use case which rationalizes IMS as the only globally standardized SIP-based architecture (to date) that addresses the needs of mobile operators in terms of session management, security, mobility, QoS and charging. “OMA service enablers shall make use of capabilities provided by the 3GPP and 3GPP2 IP Multimedia Subsystem (IMS) when IMS is used”;  The ETSI TISPAN Group (Telecoms & Internet converged Services & Protocols for Advanced Networks) NGN (Next Generation fixed Network) will use the 3GPP IMS technology.

EMC/QX/R-04:063 Uen Rev A CDG IR Team Radio Layer (IS-2000) IS-2000 BSS (+MSC/ HLR) UE Radio Network Packet Layer (IS-707) Packet Service Instance PDSN/ AAA IS-835 Simple/Mobile IP IOS Packet Network IMS Client SIP Session IMS/HSR SIP/SDP DIAMETER Pi IMS Core IMS and CDMA2000 PTT Application Application Execution Environment PTT AS SIP AS SIP Service Network

EMC/QX/R-04:063 Uen Rev A CDG IR Team IMS Overview  IMS is an framework for enabling advanced IP services & applications on top of packet bearer;  IMS supports new IP based MM services and interoperability with traditional telephone services;  IMS is “access aware” & “access independent”: WCDMA, GSM, CDMA2000, wireline, WLAN, etc. Support System Provisioning Management Charging Number Mapping Common System I-CSCFP-CSCF HSS MRFP MRFC S-CSCF IMS clients Application Layer AS  Applications;  Service Enablers:  Group Mgmt;  Conferencing;  Messaging;  Presence;  Service Execution Environment  Etc.  Applications;  Service Enablers:  Group Mgmt;  Conferencing;  Messaging;  Presence;  Service Execution Environment  Etc. AS Interworking SBG MGCF SGW MMGW IP Network CS Network AS : Application Server - Application logic CSCF :Call Session Control Function - Session control and signaling HSS : Home Subscriber Server - Maintains the home subscriber profile MRF :Media Resource Function - Media stream manipulation SBG:Session Border Gateway MGCF:Media Gateway Control Function MMGW:MultiMedia GateWay SGW:Signaling Gateway

EMC/QX/R-04:063 Uen Rev A CDG IR Team IMS Overview (cont…) Registration Service invocation Authentication Charging Media distribution Policy handling Location Presence Group management Messaging Conferencing  Service Enablers and Core Elements dynamically work together to create new Multimedia services;  Elements are reused in different combinations. Service EnablersService Core Elements

EMC/QX/R-04:063 Uen Rev A CDG IR Team IMS Main Benefits  Naturally enables convergence of internet and telecommunication services;  IMS introduces common functions and enablers that can be reused (i.e. horizontal functions such as charging, provisioning and presence can be re-used for additional services launched);  IMS is an architecture that supports many operator’s requirements of the Data Services business model (e.g. provides Network Control when required, i.e. provide control or push it to the client if it makes more sense).

EMC/QX/R-04:063 Uen Rev A CDG IR Team Next Generation Network (NGN) Requirements …Interworking & World Wide Roaming…; (Source: CDG FGWN Group) “IMS Interworking means that two different IMS networks are connected through Inter-PLMN IP network to enable SIP control and transport of user plane” “IMS Roaming means that VPLMN packet network resources are used in order to connect to the IMS core network, which resides in HPLMN (short term case) or VPLMN” (Source: GSMA IR.65 – “IMS Roaming & Interworking Guidelines”)

EMC/QX/R-04:063 Uen Rev A CDG IR Team Other ? CRX/GRX ? CRX/GRX ? Internet ? Internet ? IMS Interworking GRX is preferred for: MMS/IMS Interworking Access Network S-CSCF I-CSCFP-CSCF GGSN SGSN UE Server GPRS/UMTS Access Network S-CSCF P-CSCFI-CSCF HA Server UE PDSN CDMA2000 PDSN : Packet Data Serving Node HA :Home Agent SGSN : Serving GPRS Support Node GGSN :Gateway GPRS Support Node GRX :GPRS Roaming Exchange CRX :CDMA Roaming Exchange

EMC/QX/R-04:063 Uen Rev A CDG IR Team Home Network IMS Roaming – PCSCF in HPLMN CRX IMS Home Network S-CSCF HSS HA Visited Network IMS Visited Network PDSN UE P-CSCF  IMS roamers connect to the HPLMN through Mobile IP (MIP) giving full service control to the HPLMN;  The visited network does not have to have an IMS domain.

EMC/QX/R-04:063 Uen Rev A CDG IR Team IMS Roaming – PCSCF in VPLMN Home Network CRX IMS Home Network S-CSCF HSS Visited Network IMS Visited Network UE I-CSCF  IMS control shared between home and visited network;  Offers benefits like improved QoS and security. The VPLMN is not a bit pipe. P-CSCFPDSN

EMC/QX/R-04:063 Uen Rev A CDG IR Team Home Network IMS Roaming – GGSN in HPLMN GRX IMS Home Network S-CSCF HSS GGSN Visited Network IMS Visited Network SGSN UE P-CSCF  IMS roamers connect to the HPLMN through GPRS roaming;  The visited network does not have to have an IMS domain.

EMC/QX/R-04:063 Uen Rev A CDG IR Team IMS Roaming – GGSN in VPLMN Home Network GRX IMS Home Network S-CSCF HSS Visited Network IMS Visited Network SGSN UE I-CSCF  Will become advantageous when the level of real-time traffic increases. For the first phase, GGSN in HPLMN is preferred;  Offers benefits like improved QoS, security and optimized routing. The VPLMN is not a bit pipe anymore. P-CSCFGGSN

EMC/QX/R-04:063 Uen Rev A CDG IR Team Ericsson IMS Offerings Commercial Offerings Trial Offerings Available Now Services offering for IPMM Advisory services Managed services Integration services Engine Multimedia Wireline VoIP, IPCentrex, other MM services EMM Ericsson Instant Talk Compliant with the only available multi-vendor specification (PoC ) EIT IP Multimedia System IMS infrastructure including SIP reachability, presence, GLMS, ISC, etc. IPMM Service Development Studio Development tool for new applications SDS weShare A family of Combinational Services combining the CS and PS domain weShare

EMC/QX/R-04:063 Uen Rev A CDG IR Team Person-to-Person Conversational Service Evolution Voice Call (Traditional Telephony Services) Video Call (Video Telephony) Instant Talk (Push to Talk services) Call with content (Combinational Services) Enrichment Time Person to Person Communication

EMC/QX/R-04:063 Uen Rev A CDG IR Team Ericsson Instant Talk (EIT) IP Multi Media IPMM CSCF - Call Session Control Function MRF - Media Resource Function HSS - Home Subscriber Server Instant Talk Application Server  Ericsson’s implementation of Push-to-Talk over Cellular (PoC);  Based on IPMM (i.e. Ericsson’s implementation of IMS/MMD);  Contact list integrated with phones; Media Signaling EIT Client  User Features Example: Open/closed chat user groups Add users to an on-going session Group management from handset Pre-defined and add-hoc groups Subscribe to each others presence Do not Disturb (DnD) Floor control

EMC/QX/R-04:063 Uen Rev A CDG IR Team weShare – an Evolution Path to Mobile MM Perceived “real-time”-ness  WS-Image  WS-Motion Mode 2 “Communicate & Share” 1. Call. 2. Create/find content. 3. Send it while talking. 4. Talk about it.  Directions on a map  Shared Browsing  Whiteboard Mode 3 “Communicate, Share & Interact” 1. Call. 2. Create/find content. 3. Add it while talking. 4. Talk about it, interact with it, point to it, manipulate it… 1. Create/find content. 2. Send it. 3. Call and ask to retrieve. 4. Wait. 5. Talk about it.  MMS  Mode 1 “Verbal protocol”

EMC/QX/R-04:063 Uen Rev A CDG IR Team Conclusion  IMS is getting momentum as the architecture of choice for the introduction of Mobile & Fix Multimedia Services;  Regulatory bodies in Europe are encouraging the industry to address the Interworking and Roaming issues in order to avoid the fragmentation of IMS services;  The GSMA organization has introduced the “IMS Roaming & Interworking Guidelines” document and recommends using GRX networks for Interworking/Roaming;  Combinational Services enables the combination of real- time CS voice with near-real-time Packet Data services to enrich the end-user’s experience.

EMC/QX/R-04:063 Uen Rev A CDG IR Team QUESTIONS ? ? ? TAKING YOU FORWARD