KSI - Key Set Identifier

This is used in the UMTS Authentication process to enable a mobile to be ciphered without the continual need for reauthentication. The equivalent in a GSM network is the CKSN (Cipher Key Sequence Number).

NetX

  • Fully interactive 3GPP based network map
  • Narrated call flows
  • Detailed network procedures

Explore NetX today with a
free trial.
More Info about NetX