Design and implementation of UMTS session management in the user equipment

Chai Hien Gan*, Yi-Bing Lin, Shi Hi Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


In universal mobile telecommunications system (UMTS), session management (SM) maintains a communication session between a user equipment (UE) and the core network. 3GPP TS 24.008 specifies the SM functions and the communication protocols between the UE and the core network. However, the interaction between the SM and other entities in the UE are not specified in detail. This paper designs and implements the SM software. We use a finite state machine (FSM) to model the SM functions. Based on the FSM and the primitives, we describe how to set up the development steps to implement the SM at the UE.

Original languageEnglish
Pages (from-to)755-766
Number of pages12
JournalWireless Communications and Mobile Computing
Issue number6
StatePublished - 1 Aug 2007


  • Packet data protocol (PDP) context
  • Packet-switched (PS) domain
  • Session management (SM)
  • Universal mobile telecommunications system (UMTS)
  • User equipment (UE)


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