Foreword1 Scope2 References3 Definitions and abbreviations4 General5 E1AP services6 Services expected from signalling transport7 Functions of E1AP8 E1AP procedures8.1 List of E1AP Elementary Procedures8.2 Interface Management procedures8.3 Bearer Context Management procedures8.4 Trace Procedures8.5 IAB Procedures9 Elements for E1AP communication9.1 General9.2 Message Functional Definition and Content9.3 Information Element Definitions9.4 Message and Information Element Abstract Syntax (with ASN.1)10 Handling of unknown, unforeseen and erroneous protocol data 7 Functions of E1AP 38.4633GPPE1 Application Protocol (E1AP)NG-RANRelease 16TS Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM The functions of E1AP are described in TS 38.460 [3].