Ip Multimedia Subsystem Dissertation

To learn more or modify/prevent the use of cookies, see our Cookie Policy and Privacy Policy.CHAPITRE II IP MULTIMEDIA SUBSYSTEM (IMS) Asma ADALA A.

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 constitue une couche logique intermédiaire entre les terminaux mobiles et les réseaux de transport orientés IP d'un côté, et les services applicatifs télécoms de l’autre coté (voir figure).

Introduction 6 Introduction 7  Ambition: constituer une plateforme unique pour toute une gamme deservices et offrir de nouvelles applications en un temps minimum.

As a key member of the 3G mobile technologies identified by the ITU (international Telecommunication Union), UMTS (Universal Mobile Telecommunications System) represents an evolution in terms of services and data speeds from today's 2G mobile networks.

Third Generation Partnership Project (3GPP) was formed to work on the technical specification of UMTS.

 Standardisé par le 3GPP, 3GPP2, groupe TISPAN de l’ETSI, OMA, ... Architecture IMS 8   A la manière de l’approche NGN, l’architecture IMS reprend une approche en couches.

Structurée en quatre couches fondamentales :  Accès  Transport  Contrôle et session  Service et application Architecture IMS 9 Architecture IMS 10  couche Accès : renferme tout type d’accès haut débit comme WLAN, UTRAN, x DSL, etc.We use cookies to make interactions with our website easy and meaningful, to better understand the use of our services, and to tailor advertising.For further information, including about cookie settings, please read our Cookie Policy . It seems only yesterday that the 3GPP gave birth to the IP Multimedia Subsystem and now we are getting ready to celebrate its Sweet Sixteen and turn it loose on the world.Of course, way back in (Release) 2000 we didn’t even have a name for it, so we called it “All IP”.We calculated the delay in each node and gave the waiting time distribution.Then we assumed the traffic to be M/D/1 and gave the delay in each node.Introduction 5  Fournit un réseau IP multiservices et multi-accès qui offre aux utilisateurs la possibilité d’établir dessessions multimédias. Présente une couche de contrôle commune à tous type de réseau.The total delay in a call set up/release procedure is the summation of the delay of the nodes along the signaling path.We got that the M/M/1 analysis provides us the upper bound of the average waiting time of each node, as well as the average delay in the call set up/release procedure.

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