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CT6 - Smart Card Application Aspects

<<NEW 2022-01-28>> A technical vote will be held during CT6#110-e, 23 February 2022.

Within the 3GPP Technical Specification Group Core Network and Terminals, the main objectives of the 3GPP TSG CT WG6 (CT6) are:

The development and maintenance of specifications and associated test specifications for the 3GPP secure access applications, which are based on secure platforms (e.g. UICC) developed by ETSI TC SCP and the interface between these applications with the Mobile Terminal.


  • Subscriber Identity Module (SIM), which is used by 2G systems;
  • Universal Subscriber Identity Module (USIM) application, which is used by 3GPP systems;
  • IP Multimedia Services Identity Module (ISIM) application with the exception of the security algorithms (developed by SA WG3);
  • Hosting Party Subscription Identity Module (HPSIM) application.

CT WG6 is currently responsible for the design and specifications of the evolution of the USIM application, for instance:

  • for securely accessing 5G networks over 3GPP and Non-3GPP accesses;
  • providing user privacy by concealing the users identity in 5G networks;
  • to support configuration capabilities for 5G services, e.g. steering of roaming, V2X, wireless wireline convergence, multi device multi identity;
  • specification of 5G related conformance tests for the interface between UICC applications and mobile devices.

Terms of reference 

The latest terms of reference were approved at CT#90 in document CP-203098.

Useful links and information

About CT WG6 List of elected officials
Documents Meeting documents
  Work items
Meetings Next meeting information & previous meeting reports and documents
  Liaisons Statements
  Full CT WG6 meeting calendar
General info 3GPP IETF Dependencies - from TSG#52 Jun 2011 onwards the 3GPP-IETF Dependencies are included in the 3GPP Work Plan
  Email exploder lists


CT Working groups 
TSG CT Plenary  
TSG CT WG1 User Equipment to Core Network protocols
[No WG2] See Old Terminals Group 2
TSG CT WG3 Interworking with External Networks & Policy and Charging Control
TSG CT WG4 Core Network Protocols
TSG CT WG5 OSA (Now transferred to OMA)
TSG CT WG6 Smart Card Application Aspects
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