1. Telespazio ASMS-TASK FORCETOULOUSE, April, 9-10, 2002 FUTURE : Specification of the Multimedia Subsystem Demonstrator Authors: Arnoldo Giralda (project coordinator), Filomena Del Sorbo http://www.ebanet.it/future.htm

2. Telespazio ASMS-TASK FORCETOULOUSE, April, 9-10, 2002 Name Short name Country Telespazio (coordinator) TPZ I European Business Associates EBA I Space Engineering SE I University of Aquila UNIVAQ I University of Aachen AU D Siemens Austria SAGO A Ericsson Hellas EH GR Ascom ASC CH Integracion y Sistema de Medida ISM E COMPOSITION OF THE TEAM

3. Telespazio ASMS-TASK FORCETOULOUSE, April, 9-10, 2002 FUTURE project aims at exploring applicability of native Internet Protocols in 3G (e.g. SIP and Web Techniques) FUTURE services leverage on capabilities of S-UMTS satellites (wide area coverage,broadcasting/multicasting and location determination ). FUTURE has the VIRTUOUS project as starting point. FUTURE work-plan is organized in nine work packages. FUTURE

4. Telespazio ASMS-TASK FORCETOULOUSE, April, 9-10, 2002 FUTURE Demonstrator Architecture

5. Telespazio ASMS-TASK FORCETOULOUSE, April, 9-10, 2002 Interrelationship of Work Packages WP500Integrationand test WP100 Requirements fornew functionallyand referencemodel WP200 Emulator adaptation WP300 QoSin the Core Network in the Access Network WP400 IPbased Multimedia Subsystem WP600 Trials WP700 Dissemination, Standardisation, Expolitation WP800 Assessment and evaluation WP900 Management and coordination WP500Integrationand test WP100 Requirements fornew functionallyand referencemodel WP200 Emulator adaptation WP300 QoSin the Core Network in the Access Network WP400 IPbased Multimedia Subsystem WP600 Trials WP700 Dissemination, Standardisation, Expolitation WP800 Assessment and evaluation WP900 Management and coordination

6. Telespazio ASMS-TASK FORCETOULOUSE, April, 9-10, 2002 The Work Package 400 aims at : Defining an UMTS multimedia subsystem to offer real- time multimedia services supported by SIP signalling Obtaining the transparency of the IMS( IP Multimedia Subsystem) on the used underlying transport mechanisms (satellite and terrestrial ) Designing of multimedia services based on SIP (real- time and non-real-time) to show the inherent capabilities of S-UMTS satellites (wide area coverage, broadcasting/multicasting and location determination ) and to verify requirements on the IMS. WP400

7. Telespazio ASMS-TASK FORCETOULOUSE, April, 9-10, 2002 What is SIP ? It is a new signalling protocol used to establish multimedia sessions over IP Characteristics : In each session SIP protocol manages different kind of data flow (video,audio) It is independent by transport protocol It is an open and scalable standard SIP protocol is multipurpose In 3G SIP manages the HSS (Home Subscriber Profile ) information. The HSS is a register that collects SIP User Profiles (e.g. LCS (LoCation Service)subscriptions ). A set of SIP users establishes SIP connection towards SIP servers. Session Initiation Protocol :SIP (1/2)  1xx: Informational: request received, continuing to process the request;  2xx: Success: the action was successfully received, understood, and accepted;  3xx: Redirection: further action needs to be taken in order to complete the request;  4xx: Client Error: the request contains bad syntax or cannot be fulfilled at this server;  5xx: Server Error: the server failed to fulfil an apparently valid request;  6xx: Global Failure: the request cannot be fulfilled at any server.

8. Telespazio ASMS-TASK FORCETOULOUSE, April, 9-10, 2002 Session Initiation Protocol: SIP (1/2) The SIP basically supports five facets of establishing and terminating multimedia communications: 1. User location: determination of the end system to be used for communication; 2. User capabilities: determination of the media and media parameters to be used (e.g. preconditions for QoS) 3. User availability: determination of the willingness of the called party to engage in communications; 4. Call set-up: "ringing", establishment of call parameters at both called and calling party; 5. Call handling: including transfer and termination of calls.

9. Telespazio ASMS-TASK FORCETOULOUSE, April, 9-10, 2002 SIP MS Architecture - User Mobility Server SIP advantages - Interoperability among UMTS and Internet - Mobility (SIP Proxy) - Multicast calls support -Service provisioning at application level (Execution Environment) - Call State Control Function - Feature Server Serving CSCF Proxy CSCF SIP Multimedia Subsystem

10. Telespazio ASMS-TASK FORCETOULOUSE, April, 9-10, 2002 SIP signalling Registration User Location and Profile Service Mobility Session set-up Changing existing sessions Terminating sessions Security and authentication Coexistence with other call-setup and signalling protocols SIP services Point to point communication Multimedia conference Real/Non-real time services SIP MS Requirements

11. Telespazio ASMS-TASK FORCETOULOUSE, April, 9-10, 2002 WP400 Results (D04.01 ) End-user applications for FUTURE –3rd party call control (QoS interactive -> conversational) –User initiated session modification (QoS conversational) –Location based service (plain text) –Context awareness of application service (QoS streaming) –Presence service (status information - plain text) FUTURE Service logic based on SIP servlets Functional analysis in terms of message sequence charts

12. Telespazio ASMS-TASK FORCETOULOUSE, April, 9-10, 2002 The application scenario “3 rd Party Call Control” is a combination of the non-real time application "web browsing" and the real time multimedia application voice over IP (audio session) by using SIP as signalling protocol 3 rd Party Call Control Service

13. Telespazio ASMS-TASK FORCETOULOUSE, April, 9-10, 2002 The idea of this service is to first initiate the multimedia application voice over IP (audio session) between two participants as performed in the 3 rd party call control application and then to demonstrate a change of the session characteristics (like the media type and/or the media codec) in an active session or to establish an additional session (video session) to an already existing one (audio session ). User Initiated Session modification service

14. Telespazio ASMS-TASK FORCETOULOUSE, April, 9-10, 2002 The LBS produces information basing on the geographical information of an user.The position information are managed by the Location Server basing on the LCS profile contained in the HSS. Location Based Service

15. Telespazio ASMS-TASK FORCETOULOUSE, April, 9-10, 2002 Context Awareness of Application Service In this scenario a connection to a media server, which provides video streams of different qualities of the same video (e.g. black & white, colour, different windows sizes), is established. The application is aware of the used segment (the mobile is attach to) and with this segment information the feature server is responsible to set up an appropriate connection between the mobile user and the media server providing video streams with different qualities (black/white, colour)

16. Telespazio ASMS-TASK FORCETOULOUSE, April, 9-10, 2002 Presence Service The presence service provides access to presence status information of an end user to be made available to other users or services. Presence is an attribute related to, but quite different, from mobility information, and provides a service to be exploited by other services.

17. Telespazio ASMS-TASK FORCETOULOUSE, April, 9-10, 2002 The Spot Satellite service consists on broadcast commercial Spot by satellite segment. The evolution of the service is based on the following steps: 1)The Spot Satellite server (SSS) delivers a data stream based on a sequence of multimedia commercial spots. 2)At the same time the server establishes SIP connection with a set of Spot Satellite user service identified by SIP user profiles. 3)Consulting the HSS time by time and using geographical user position information (location server ), the SSS decides if an user can have access to a particular Spot content or not. During the evolution of the user position the User Equipment receives a set of Spots in function of the user position information. An Example of Location Based Service :Spot Satellite