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SRNS - Serving Radio Network Subsystem

There is one Serving Radio Network Subsystem for each UE (User Equipment) that has a connection to the UTRAN (UMTS Terrestrial Access Network). The Serving RNS controls the RRC (Radio Resource Control) connection between a UE and the UTRAN.


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

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