Title: Active Location Reporting for Emergency Call in UMTS IP Multimedia Subsystem
Authors: Tsai, Meng-Hsun
Lin, Yi-Bing
Wang, Hsiao-Han
資訊工程學系
Department of Computer Science
Keywords: Emergency call;IP multimedia core network subsystem (IMS);location tracking;Universal Mobile Telecommunications System (UMTS)
Issue Date: 1-Jan-2009
Abstract: The IP Multimedia Core Network Subsystem (IMS) provides multimedia services for Universal Mobile Telecommunications System (UMTS). In IMS, an emergency call is established by an Emergency Call Session Control Function (E-CSCF). The E-CSCF dispatches the call to the nearest Public Safety Answering Point (PSAP) according to the location of the caller. After emergency call setup, the caller's location is tracked by the PSAP through Location Polling. This paper investigates the performance of location tracking. Then we propose the Active Location Reporting scheme to improve the performance of location tracking. Our study indicates that the Active Location Reporting scheme may significantly outperform the Location Polling scheme.
URI: http://hdl.handle.net/11536/16617
ISBN: 978-1-4244-4153-2
ISSN: 
Journal: MDM: 2009 10TH INTERNATIONAL CONFERENCE ON MOBILE DATA MANAGEMENT
Volume: 
Issue: 
Begin Page: 311
End Page: 316
Appears in Collections:Conferences Paper


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