URR - UMA Radio Resource

UMA (Universal Mobile Access) Radio Resource is a protocol found within a UNC (Unlicensed Network Controller) to support the transfer of GSM control plane information between the UNC and the mobile device. This interface termed Up spans a broadband IP network in addition to the unlicensed radio technology in operation – WiFi or Bluetooth.


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

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