Foreword1 Scope2 References3 Definitions, symbols and abbreviations4 Architecture5 Functional entities6 Control and User Plane Architecture7 Management functionality8 High-Level Procedures for GAN A/Gb Mode8.1 Mechanism of Mode Selection in Multi-mode terminals8.2 PLMN Selection8.3 Re-selection between GERAN/UTRAN/E-UTRAN and GAN modes8.4 GAN Discovery and Registration related procedures8.5 Authentication8.6 Encryption8.7 GA-CSR Connection handling8.8 Ciphering Configuration8.9 GA-CSR Signalling and SMS Transport Procedures8.10 Mobile Originated Call Flow8.11 Mobile Terminated Call Flow8.12 Call Clearing8.14 CS Handover between GAN A/Gb mode and GERAN/UTRAN mode8.15 Cell Change Order between GAN A/Gb mode and GERAN/UTRAN mode8.16 GA-PSR Transport Channel Management Procedures8.17 GPRS Data, Signalling and SMS Transport8.18 GA-PSR Specific Signalling Procedures8.19 Short Message Service8.20 Supplementary Services8.21 Emergency Services8.22 Location Services8.23 PS Handovers between GAN A/Gb mode and GERAN/UTRAN mode9 High-Level Procedures for GAN Iu Mode9.1 Mechanism of Mode Selection in Multi-mode terminals9.2 PLMN Selection9.3 Re-selection between GERAN/UTRAN/E-UTRAN and GAN modes9.4 GAN Discovery and Registration related procedures9.5 Authentication9.6 Encryption9.7 GA-RRC Connection handling9.8 Security Mode Control9.9 NAS Signalling Procedures9.10 Mobile Originated CS Call9.11 Mobile Terminated CS Call9.12 CS Call Clearing9.13 CS Channel Modification9.14 CS Handover between GAN Iu mode and GERAN/UTRAN mode9.15 Cell Change Order between GAN Iu mode and GERAN mode9.16 GA-RRC Packet Transport Channel Management Procedures9.17 (void)9.18 (void)9.19 Short Message Service9.20 Supplementary Services9.21 Emergency Services9.22 Location Services9.23 PS Handover between GAN Iu mode and GERAN/UTRAN modeA.1 EAP based AuthenticationA.2 Profile of IKEv2A.3 Profile of IPsec ESPB.1 GAN A/Gb mode ARFCN/BSIC for handover-to-GANB.2 GAN Iu mode UARFCN/PSC for handover-to-GANC.1 Identifiers for MSs and generic IP access networkC.2 Cell identifiers for GAN A/Gb mode 9.21 Emergency Services 3GPP43.318Generic Access Network (GAN)Release 17Stage 2TS Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM See clause 8.21.