NDLI: Policy and Charging Control for Virtual IMS Client

Content Provider	Springer Nature Link
Author	Islam, Salekul Grégoire, Jean Charles
Copyright Year	2013
Abstract	In its latest releases, the IP multimedia subsystem (IMS) service model provisions Quality of Service (QoS) and enforces charging through its policy and charging control (PCC) architecture. By exploiting the intrinsic segregation of the signalling and media planes that the IMS service model offers, a virtual IMS client could be developed that simplifies terminal device implementation by offloading signalling and session management tasks to a remote server. In this paper, we study how the IMS/PCC architecture can be deployed in conjunction with a virtual IMS client. Although a virtual IMS client assigns the signalling tasks (accomplished through session initiation protocol and session description protocol) to a remote server, information related to QoS should be propagated back to the access network and also the end user’s terminal device. Therefore, designing a virtual IMS client that only deals with the media plane is challenging. In this paper, we propose a PCC architecture for the virtual IMS client that keeps the end user’s terminal as simple as possible while providing the necessary functions of the IMS/PCC architecture. Since QoS provisioning is access network specific, we explore the proposed architecture for two predominant networks access methods: UMTS from 3GPP and WLAN from IP-based access.
Starting Page	609
Ending Page	628
Page Count	20
File Format	PDF
ISSN	10647570
Journal	Journal of Network and Systems Management
Volume Number	22
Issue Number	4
e-ISSN	15737705
Language	English
Publisher	Springer US
Publisher Date	2013-02-27
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	IMS Virtual client QoS provisioning Charging control Policy enforcement Roaming Computer Communication Networks Computer Systems Organization and Communication Networks Communications Engineering, Networks Information Systems and Communication Service Operations Research/Decision Theory
Content Type	Text
Resource Type	Article
Subject	Strategy and Management Computer Networks and Communications Information Systems Hardware and Architecture

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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