Topic
IP Multimedia Subsystem
About: IP Multimedia Subsystem is a research topic. Over the lifetime, 4398 publications have been published within this topic receiving 43698 citations.
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11 May 2008
TL;DR: This paper proposes an extension of the 3GPP IMS emergency service architecture for the provision of enhanced, context-aware emergency services, and a proof-of-concept prototype, showcasing an enhanced emergency service scenario, is presented.
Abstract: Emergency services represent one of the fundamental services offered by the IP multimedia subsystem (IMS). Currently, these services rely on a limited range of contextual information (mainly location). A richer set of contextual information could be exploited to provide enhanced emergency services and lead to more efficient emergency operations. In this paper, we propose an extension of the 3GPP IMS emergency service architecture for the provision of enhanced, context-aware emergency services. The 3GPP presence framework is leveraged and extended to realize the information management aspects of the architecture. Furthermore, a proof-of-concept prototype, showcasing an enhanced emergency service scenario, is presented.
17 citations
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03 May 2006
TL;DR: In this article, a method of facilitating access to IP Multimedia Subsystem (IMS) services by non-IMS enabled terminals is proposed, such as blackphones and DECT phones are registered with a Home IMS gateway (Residential Gateway) and, in response to the registration, an IMS registration is performed, on behalf of the terminal, between the home gateway and the IMS, using information obtained from a Universal SIM application of a UICC.
Abstract: A method of facilitating access to IP Multimedia Subsystem (IMS) services by non-IMS enabled terminals. Non-IMS enabled terminals, such as blackphones and DECT phones are registered with a Home IMS gateway (Residential Gateway) and, in response to the registration, an IMS registration is performed, on behalf of the terminal, between the Home IMS gateway and the IMS, using information obtained from a Universal SIM application of a UMTS Integrated Circuit Card (UICC) present at the Home IMS Gateway. The Home IMS Gateway may comprise a SIP Back-to-Back User Agent having an interface to the ISIM on the UICC.
17 citations
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TL;DR: It is argued that physical location data can be regarded as a type of presence information and proposed an architecture which reuses a large part of the IMS presence infra-structure by applying presence mechanisms, like notification handling, access control and privacy management, to location data.
Abstract: The 3GPP IP Multimedia Subsystem (IMS) is currently expected to provide the basic architecture framework for the Next Generation Network which will bridge the traditional divide between circuit-switched and packet-switched networks and consolidate both sides into one single network for all services There-fore, the imminent commercial roll-out of IMS will have immense impact both for the migration of the core network as well as the integration of future mobile services and applications This paper presents an OpenSER-based experimental testbed which has been designed as a minimal standard-compliant IMS core network We discuss major practical requirements and describe our implementation of this "IMS in a bottle" approach Furthermore, we introduce a terminal-based native IMS location service enabler We argue that physical location data can be regarded as a type of presence information and propose an architecture which reuses a large part of the IMS presence infra-structure by applying presence mechanisms, like notification handling, access control and privacy management, to location data We demonstrate that the realization of this service can be integrated efficiently into the IMS core environment, and present initial evaluation results for the joint demonstrator Finally, important current and future challenges including migration, interworking, charging, Quality-of-Service, identity management, security, and regulatory aspects, are discussed in detail, thus ending up with an up-to-date research agenda
17 citations
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TL;DR: This paper explains how the convergence of telecommunications and web services can be achieved, and demonstrates the potentialities of this architectural paradigm with a prototype service.
Abstract: Telecommunication and Internet services are constantly subject to changes, seeking the customer's full satisfaction. Enriching these services with innovative approaches such as context-aware, social, mobile, adaptable and interactive mechanisms enable users to experience a variety of personalized services seamlessly across different platforms and technologies. In this sense, Service Oriented Architectures play a central role in allowing component reuse and low cost service creation. Together with IP Multimedia Subsystem enable the convergence of telecommunications and web services, allowing the network transport technologies to be abstracted from the services above. By integrating these technologies, a number of synergies can be explored. Existing services can be easily enriched with context information, made available on a variety of networks and new services can be composed using previously existing building blocks. This paper explains how this integration can be achieved, and demonstrates the potentialities of this architectural paradigm with a prototype service.
17 citations
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16 Sep 2008TL;DR: This work proposes a concept for public safety communication realized with IMS (IP multimedia subsystem), the cellular standards of 3GPP and packet switched transmission and shows that the concept has the technology potential to meet public safety requirements.
Abstract: We propose a concept for public safety communication realized with IMS (IP multimedia subsystem), the cellular standards of 3GPP and packet switched transmission. Basing the solution on mainstream cellular technology leverages the economy of scale of today's commercial networks and enables migration of technical solutions and applications. Important requirements of the public safety sector are group communication, low latency, high capacity, security, reliability and interoperability for voice and broadband data services. Our analysis shows that the concept has the technology potential to meet these public safety requirements.
17 citations