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A Seminar Report

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A Seminar Report On Introduction to IP Management Subsystem (IMS) Submitted In Partial Fulfillment of B.E. (Computer Engineering) By JaiswalPrateek TE Computer (Roll No. 3126) Under The Guidance of Mr. NileshPatni Department of Computer Engineering Modern College Of Engineering, Pune-05 (2009-2010) Abstract The IP Multimedia Subsystem (IMS) is an architectural framework for delivering Internet Protocol (IP) multimedia services. It was originally designed by the wireless standards body
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   A Seminar ReportOn Introduction to IP ManagementSubsystem (IMS) SubmittedIn Partial Fulfillment of B.E. (Computer Engineering)   By JaiswalPrateek  TE Computer  ( Roll No. 3126)   Under The Guidance of  Mr. NileshPatniDepartment of Computer EngineeringModern College Of Engineering, Pune -05  (2009-2010 )  Abstract The  IP Multimedia Subsystem (   IMS   ) is an architectural framework for delivering  Internet Protocol (IP) multimedia services. It was srcinally designed by thewireless standards body 3rd Generation Partnership Project (3GPP), as a part of the vision for evolving mobile networks beyond GSM. Its srcinal formulation(3GPP R5) represented an approach to delivering Internet services over GPRS.This vision was later updated by 3GPP, 3GPP2 and TISPAN by requiring support of networks other than GPRS, such as Wireless LAN, CDMA2000 and fixed line. According to the 3GPP, IMS is not intended to standardize applications but rather to aid the access of multimedia and voice applications from wireless and wirelineterminals, i.e. create a form of fixed-mobile convergence (FMC). This is done byhaving a horizontal control layer that isolates the access network from the servicelayer. From a logical architecture perspective, services need not have their owncontrol functions, as the control layer is a common horizontal layer. For operators, IMS takes the concept of layered architecture one step further by defining a horizontal architecture, where service enablers and common functions can be reused for multiple applications. The horizontal architecture in IMS also specifies interoperability and roaming, and provides bearer control,charging and security. What is more, it is well integrated with existing voice and data networks, while adopting many of the key benefits of the IT domain. Thismakes IMS a key enabler for fixed-mobile convergence. For these reasons, IMS will become preferred solution for fixed and mobile operators¶ multimediabusiness.The IMS terminal must perform three major tasks:access the IMS home or visited network via the IP connectivity access network (IP-CAN),discover the P-CSCF address and perform IMS level registration.   IMS network operation includes IMS User Authentication and Security Associations, MS Level Registration, MS Session Setup, IMS Security, IMS Service Delivery, IMS Roaming and IMS Charging  IMS advantages include separation of transport layer from session control layer - Access Agnostic , convergence of Wire line and Wireless Services, sessionmanagement across multiple real-time services, compatibility with AIN services(for PLMN) , single Public Identity for user, consistency in Billing, Authenticationacross various services, service Delivery Platform for new services. MS find avariety of applications in every field of data communication.  R eferences y   The 3G IP Multimedia Subsystem (IMS): Merging the Internet and theCellular Worlds by Gonzalo Camarillo, Miguel-Angel Garcia-Martín. y    Multimedia over Mobile IP By Chang Wen Chen and JieboLuo y   http://www.3gpp.org 3GPP home page. y   http://en.wikipedia.org   1 .   Welcome to IMS I t¶s happening again. The telecom world is changing. What will it be this time? Morecompetition as we saw with the divestiture of the Bell System? Greater mobility that the launchof cellular mobile networks gave us? Or perhaps a wider variety of information to suit our  personal preferences which the growth of the I nternet has provided?Considering the prevalent view, this change in telecom can bring us all three: more competitionfor services, greater mobility, and more personalized services and content. The drivers behindthis change are derived from large and permanent shifts in the economics of today s telecommarket, dynamic new technologies that offer more capabilities, and more subtle shifts in our information age lifestyle that fuels greater demand.The changes that are underway are best described using the theme of  Co nvergence : y   Convergence of technologies: I P is the common network protocol y   Convergence of networks: wireless and wireline networks sharing nodes y   Convergence of access: handsets that access more than one network  y   Convergence of services: features that follow the user across networks y   Convergence of content: access the same content across multiple networks y   Convergence of revenue: user s demand is divided across fixed and mobile y   Convergence of control: customer control over service provider features 1 . 1 IMS: The Open Architecture Reference Model for Convergence: The mobile industry, through the Third Generation Partnership Project (3GPP)1, has defined amodel architecture and set of standards that create the framework to support these many forms of convergence. The open-architecture model is referred to as the I P Multimedia Subsystem or  I MS
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