3G IP Multimedia Subsystem based framework for lawful interception

Dohoon Kim, Jungbean Lee, Young Gab Kim, Byungsik Yoon, Hoh Peter In

Research output: Contribution to journalArticlepeer-review


Issues related to lawful interception, such as invasion of privacy and efficient investigation, are presently at the forefront of social consciousness. Interception technology has to consistently evolve in order to keep pace with new and varied network structures. Thus, standard lawful interception documents that are appropriate for the existing PSTN, 2G and 3G, and packet-based communication are being proposed. In particular, newly arising services based on IP Multimedia Subsystems (IMSs) that support multimedia streaming, data transmission, and voice over IP, make lawful interception even more imperative. In this paper, we propose an architecture for IMS/Session Initiation Protocol based Lawful Interception (LI) in wireless 3G networks. We also propose LI techniques that are differentiated according to the IMS characteristics where content service providers are separated from network providers. Using the standards of dynamic triggering technologies for commissioning the authority to intercept among multiple network providers as a basis, we analyze IMS architecture and service operation methods. We then propose an LI architecture that is appropriate for IMS services. In addition, we present the results of a quality of service performance analysis conducted on our proposed interception architecture for various numbers of IMS users.

Original languageEnglish
Pages (from-to)347-361
Number of pages15
JournalAnnales des Telecommunications/Annals of Telecommunications
Issue number7-8
Publication statusPublished - 2014 Aug

Bibliographical note

Funding Information:
Acknowledgments This research was supported by the Next-Generation Information Computing Development and Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planing(2012M3C4A7033345), and the Ministry of Education, Science and Technology (2012R1A1A2009021). This research has been done in Korea University.


  • Architecture performance analysis
  • Dynamic triggering
  • IP Multimedia Subsystem (IMS)
  • Lawful Interception (LI)
  • Session Initiation Protocol (SIP)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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