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TechSpec
  • 1 Scope
  • 2 References
  • 3 Abbreviations
  • 4 Data Link Layer
  • 5 RANAP Signalling Bearer

1 Scope

25.4123GPPRelease 17TSUTRAN Iu interface signalling transport

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

The present document specifies the standards for Signalling Transport to be used across Iu Interface. Iu Interface is a logical interface between the RNC and the UTRAN Core Network. The present document describes how the RANAP signalling messages are transported over Iu.