Foreword1 Scope2 References3 Definitions of terms, symbols and abbreviations4 General5 W1AP services6 Services expected from signalling transport7 Functions of W1AP8 W1AP procedures9 Elements for W1AP Communication9.1 General9.2 Message Functional Definition and Content9.3 Information Element Definitions9.4 Message and Information Element Abstract Syntax (with ASN.1)9.5 Message Transfer Syntax9.6 Timers10 Handling of unknown, unforeseen and erroneous protocol data 9.6 Timers 37.4733GPPApplication Protocol (W1AP)Release 17TSW1 interface Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM Void