Foreword1 Scope2 References3 Definitions and abbreviations4 Architecture Model and Concepts5 Functional Description and Information Flow5.1 Control and user plane stacks5.2 Service authorisation and revocation for ProSe Direct Discovery and ProSe Direct Communication5.3 ProSe Direct Discovery5.3.1 General5.3.2 Overall procedure for ProSe Direct Discovery (Model A)5.3.2A Overall procedure for ProSe Direct Discovery (Model B)5.3.3 Discovery Request5.3.3A Discovery Request - Model B procedures5.3.4 Discovery reporting5.3.4A Discovery reporting - Model B procedures5.3.5 Announcing Alert Procedures - restricted discovery5.3.5A Void5.3.6 Void5.3.6A Direct Discovery Update Procedures5.3.7 Direct Discovery for Public Safety use5.4 Procedures for ProSe Direct Communication5.5 EPC-level ProSe Discovery procedures5.6 EPC support for WLAN direct discovery and communication5.7 ProSe impacts to EPC proceduresA.1 GeneralA.2 Wi-Fi Peer-to-PeerB.1 GeneralB.2 Use of wild-carded ProSe Application IDsC.1 GeneralC.2 Wi-Fi Neighbor Awareness Networking (NAN) 5.3.6 Void 23.3033GPPProximity-based services (ProSe)Release 17Stage 2TS Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM