Active location reporting for emergency call in UMTS IP multimedia subsystem

Meng Hsun Tsai; Yi Bing Lin; Hsiao Han Wang

doi:10.1109/TWC.2009.12.070080

Active location reporting for emergency call in UMTS IP multimedia subsystem

Meng Hsun Tsai, Yi Bing Lin, Hsiao Han Wang

Department of Computer Science and Information Engineering

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

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 (ECSCF). 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.

Original language	English
Article number	5351703
Pages (from-to)	5837-5843
Number of pages	7
Journal	IEEE Transactions on Wireless Communications
Volume	8
Issue number	12
DOIs	https://doi.org/10.1109/TWC.2009.12.070080
Publication status	Published - 2009 Dec

All Science Journal Classification (ASJC) codes

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

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10.1109/TWC.2009.12.070080

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Active location reporting for emergency call in UMTS IP multimedia subsystem

Abstract

All Science Journal Classification (ASJC) codes

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