Content for TR 43.902 Word version: 16.0.0
5 Architecture alternatives
5.1 A/Gn based architectures
5.2 GAN Iu Mode
6 Evaluation Section
6.1 Enhanced Up
6.2 Combined GANC/SGSN
6.3 GAN Iu Mode
6.4 Comparison of the Proposed Solutions
7 Conclusion
$ Change History
5 Architecture alternatives
5.1 A/Gn based architectures
5.1.1 Enhanced Up
5.1.1.1 Architecture
5.1.1.2 Protocol stacks Word‑p. 13
5.1.1.3 Affected Procedures
5.1.1.3.1 PS mobility overview
5.1.1.3.2 PDP Context Activation /De-Activation Word‑p. 20
5.1.1.3.3 PS Handover procedures between GAN and GERAN/UTRAN Word‑p. 26
5.1.1.3.4 CS+PS Handover between GAN and GERAN/UTRAN Word‑p. 29
5.1.1.3.5 APN resolution in EGAN mode Word‑p. 35
5.1.1.3.6 SMS in EGAN mode Word‑p. 38
5.1.1.3.7 EGAN Registration and subscriber management in PS Domain Word‑p. 39
5.1.1.3.8 Network Requested PDP Context Activation (NRPCA) Word‑p. 42
5.1.1.3.9 Roaming aspects Word‑p. 44
5.1.1.4 Terminal architecture and impacts Word‑p. 46
5.1.1.4.1 Introduction
5.1.1.4.2 CS domain Control Plane Word‑p. 47
5.1.1.4.3 CS domain User Plane Word‑p. 48
5.1.1.4.4 PS domain
5.1.1.5 EGAN handovers and LA/RA Update signalling Word‑p. 51
5.1.1.5.1 Introduction
5.1.1.5.2 GERAN/GAN Scenario
5.1.1.5.3 UMTS/GERAN/GAN Scenario Word‑p. 53
5.1.1.5.4 GAN Enhancement alternatives
5.1.1.6 Proxy-Gn Load and Performance Word‑p. 54
5.1.2 Combined GANC/SGSN Word‑p. 57
5.2 GAN Iu Mode Word‑p. 62
5.2.1 Functional Architecture
5.2.2 Functional entities Word‑p. 64
5.2.3 Control and User Plane Architecture
5.2.3.1 Circuit Switched (CS) Domain Word‑p. 65
5.2.3.2 Packet Switched (PS) Domain Word‑p. 67
5.2.3.3 GA-RC (Generic Access Resource Control)
5.2.3.4 GA-RRC (Generic Access Radio Resource Control) Word‑p. 70
5.2.4 Security Mechanisms Word‑p. 71
5.2.5 High Level Procedures
5.2.5.1 Mode Selection in Multi-mode terminals
5.2.5.2 PLMN Selection Word‑p. 72
5.2.5.3 Re-selection between GERAN/UTRAN and GAN modes Word‑p. 73
5.2.5.3.1 Rove-in (from GERAN/UTRAN mode to GAN mode)
5.2.5.3.2 Rove-out (from GAN mode to GERAN/UTRAN mode)
5.2.5.4 GAN Discovery and Registration related procedures
5.2.5.4.1 Discovery and Registration for Generic Access Word‑p. 74
5.2.5.4.2 De-Registration Word‑p. 80
5.2.5.4.3 Registration Update Word‑p. 81
5.2.5.4.4 Keep Alive Word‑p. 82
5.2.5.4.5 Cell Broadcast Information
5.2.5.5 Void
5.2.5.6 Void
5.2.5.7 GA-RRC Connection handling Word‑p. 83
5.2.5.8 Security Mode Control Word‑p. 84
5.2.5.9 NAS Signalling Procedures
5.2.5.10 Mobile Originated CS Call Word‑p. 85
5.2.5.11 Mobile Terminated CS Call Word‑p. 87
5.2.5.12 CS Call Clearing Word‑p. 88
5.2.5.13 CS Handover
5.2.5.13.1 CS Handover from GERAN to GAN
5.2.5.13.2 CS Handover from UTRAN to GAN Word‑p. 90
5.2.5.13.3 CS Handover from GAN to GERAN Word‑p. 92
5.2.5.13.4 CS Handover from GAN to UTRAN Word‑p. 93
5.2.5.14 Void
5.2.5.15 Void
5.2.5.16 Void
5.2.5.17 GA-RRC Packet Transport Channel Management Procedures Word‑p. 95
5.2.5.17.1 States of the GA-RRC Packet Transport Channel Word‑p. 96
5.2.5.17.2 PTC Initial Activation Word‑p. 97
5.2.5.17.3 PTC Data Transfer Word‑p. 98
5.2.5.17.4 MS initiated PTC Deactivation Word‑p. 99
5.2.5.17.5 MS initiated PTC Re-activation Word‑p. 100
5.2.5.17.6 Network initiated PTC De-activation Word‑p. 101
5.2.5.17.7 Network initiated PTC Re-activation
5.2.5.17.8 Implicit PTC De-activation due to MS De-registration Word‑p. 102
5.2.5.18 PDP Context Activation Word‑p. 103
5.2.5.19 Network Requested PDP Context Activation Word‑p. 104
5.2.5.20 PS Handover between GERAN and GAN Word‑p. 105
5.2.5.21 SRNS Relocation between UTRAN and GAN
5.2.6 Terminal Architecture Impacts Word‑p. 108
5.2.6.1 Assumptions and Definitions Word‑p. 109
5.2.6.2 Impact on CS Control Plane Word‑p. 110
5.2.6.2.1 CS Control Plane - Before
5.2.6.2.2 CS Control Plane-After Word‑p. 111
5.2.6.2.3 Summary of CS Control Plane Changes
5.2.6.3 Impact on CS User Plane Word‑p. 112
5.2.6.3.1 CS User Plane-Before
5.2.6.3.2 CS User Plane-After Word‑p. 113
5.2.6.3.3 Summary of CS User Plane Changes
5.2.6.4 Impact on PS Control Plane
5.2.6.4.1 PS Control Plane-Before
5.2.6.4.2 PS Control Plane-After Word‑p. 114
5.2.6.4.3 Summary of PS Control Plane Changes Word‑p. 115
5.2.6.5 Impact on PS User Plane Word‑p. 116
6 Evaluation Section Word‑p. 118
6.1 Enhanced Up
6.2 Combined GANC/SGSN Word‑p. 121
6.3 GAN Iu Mode Word‑p. 123
6.4 Comparison of the Proposed Solutions Word‑p. 126
7 Conclusion Word‑p. 133
$ Change History Word‑p. 135
