1 / 17

FUTURE :

FUTURE :. http://www.ebanet.it/future.htm. Specification of the Multimedia Subsystem Demonstrator. Authors: Arnoldo Giralda (project coordinator), Filomena Del Sorbo. COMPOSITION OF THE TEAM. Name Short name Country

ferris-scott
Download Presentation

FUTURE :

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. FUTURE: http://www.ebanet.it/future.htm Specificationof the Multimedia Subsystem Demonstrator Authors: Arnoldo Giralda (project coordinator), Filomena Del Sorbo TOULOUSE, April, 9-10, 2002

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

  3. FUTURE • FUTUREproject 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. • FUTUREwork-plan is organized in nine work packages . TOULOUSE, April, 9-10, 2002

  4. FUTURE Demonstrator Architecture TOULOUSE, April, 9-10, 2002

  5. Interrelationship of Work Packages WP100 WP100 Requirements for Requirements for new new functionally functionally and and reference reference model model Expolitation Expolitation coordination coordination evaluation evaluation , , WP200 WP200 WP400 WP400 and and Emulator Emulator IP IP based based WP300 WP300 Standardisation Standardisation adaptation adaptation Multimedia Multimedia QoS QoS in the in the Subsystem Subsystem Core Core , , Assessment Assessment WP900 Management and WP900 Management and Network in Network in WP500 WP500 Integration Integration and test and test the Access the Access Network Network Dissemination Dissemination WP800 WP800 WP700 WP700 WP600 WP600 Trials Trials TOULOUSE, April, 9-10, 2002

  6. WP400 • 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 . TOULOUSE, April, 9-10, 2002

  7. Session Initiation Protocol :SIP (1/2) It is a new signalling protocol used to establish multimedia sessions over IP What is SIP ? ·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. • 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. TOULOUSE, April, 9-10, 2002

  8. 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. TOULOUSE, April, 9-10, 2002

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

  10. SIP MS Requirements 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 TOULOUSE, April, 9-10, 2002

  11. 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 TOULOUSE, April, 9-10, 2002

  12. 3rd Party Call Control Service The application scenario “3rd 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 TOULOUSE, April, 9-10, 2002

  13. User Initiated Session modification service The idea of this service is to first initiate the multimedia application voice over IP (audio session) between two participants as performed in the 3rd 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). TOULOUSE, April, 9-10, 2002

  14. Location Based Service 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 . TOULOUSE, April, 9-10, 2002

  15. 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) TOULOUSE, April, 9-10, 2002

  16. 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. TOULOUSE, April, 9-10, 2002

  17. An Example of Location Based Service :Spot Satellite • The Spot Satellite service consists on broadcast commercial Spot by satellite segment. • The evolution of the service is based on the following steps: • The Spot Satellite server (SSS) delivers a data stream based on a sequence of multimedia commercial spots. • At the same time the server establishes SIP connection with a set of Spot Satellite user service identified by SIP user profiles. • 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. TOULOUSE, April, 9-10, 2002

More Related