Content for TS 24.554 Word version: 18.5.1
7 5G ProSe direct communications
7.1 Overview
7.2 Unicast mode 5G ProSe direct communication over PC5
7.3 Broadcast mode 5G ProSe direct communication over PC5
7.4 Groupcast mode 5G ProSe direct communication over PC5
7.6 PC3ach control protocol for 5G ProSe direct communication
7.7 Communication path switching procedure between the direct communication path over Uu and the direct communication path over PC5
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7 5G ProSe direct communications p. 122
7.1 Overview p. 122
7.2 Unicast mode 5G ProSe direct communication over PC5 p. 123
7.2.1 Overview p. 123
7.2.2 5G ProSe direct link establishment procedure p. 124
7.2.2.1 General p. 124
7.2.2.2 5G ProSe direct link establishment procedure initiation by initiating UE p. 124
7.2.2.3 5G ProSe direct link establishment procedure accepted by the target UE p. 132
7.2.2.4 5G ProSe direct link establishment procedure completion by the initiating UE p. 137
7.2.2.5 5G ProSe direct link establishment procedure not accepted by the target UE p. 138
7.2.2.6 Abnormal cases p. 143
7.2.3 5G ProSe direct link modification procedure p. 145
7.2.3.1 General p. 145
7.2.3.2 5G ProSe direct link modification procedure initiated by initiating UE p. 145
7.2.3.3 5G ProSe direct link modification procedure accepted by the target UE p. 151
7.2.3.4 5G ProSe direct link modification procedure completion by the initiating UE p. 155
7.2.3.4a 5G ProSe direct link modification procedure completion by the target UE p. 156
7.2.3.5 5G ProSe direct link modification procedure not accepted by the target UE p. 156
7.2.3.6 Abnormal cases p. 158
7.2.3.6.1 Abnormal cases at the initiating UE p. 158
7.2.3.6.2 Abnormal cases at the target UE p. 158
7.2.3.7 Void
7.2.4 5G ProSe direct link identifier update procedure p. 158
7.2.4.1 General p. 158
7.2.4.2 5G ProSe direct link identifier update procedure initiation by initiating UE p. 158
7.2.4.3 5G ProSe direct link identifier update procedure accepted by the target UE p. 160
7.2.4.4 5G ProSe direct link identifier update procedure acknowledged by the initiating UE p. 161
7.2.4.5 5G ProSe direct link identifier update procedure completion by the target UE p. 162
7.2.4.6 5G ProSe direct link identifier update procedure not accepted by the target UE p. 162
7.2.4.7 Abnormal cases p. 162
7.2.5 5G ProSe direct link keep-alive procedure p. 164
7.2.5.1 General p. 164
7.2.5.2 5G ProSe direct link keep-alive procedure initiation by the initiating UE p. 164
7.2.5.3 5G ProSe direct link keep-alive procedure accepted by the target UE p. 165
7.2.5.4 5G ProSe direct link keep-alive procedure completion by the initiating UE p. 165
7.2.5.5 Abnormal cases p. 165
7.2.6 5G ProSe direct link release procedure p. 166
7.2.6.1 General p. 166
7.2.6.2 5G ProSe direct link release procedure initiation by initiating UE p. 167
7.2.6.3 5G ProSe direct link release procedure accepted by the target UE p. 170
7.2.6.4 5G ProSe direct link release procedure completion by the initiating UE p. 171
7.2.6.5 Abnormal cases p. 171
7.2.7 PC5 QoS flow establishment over 5G ProSe direct link p. 171
7.2.8 PC5 QoS flow match over 5G ProSe direct link p. 172
7.2.9 Data transmission over 5G ProSe direct link p. 173
7.2.9.1 Transmission p. 173
7.2.9.2 Procedure for UE to use provisioned radio resources for ProSe communication over PC5 p. 173
7.2.10 5G ProSe direct link security mode control procedure p. 173
7.2.10.1 General p. 173
7.2.10.2 5G ProSe direct link security mode control procedure initiation by the initiating UE p. 173
7.2.10.3 5G ProSe direct link security mode control procedure accepted by the target UE p. 178
7.2.10.4 5G ProSe direct link security mode control procedure completion by the initiating UE p. 181
7.2.10.5 5G ProSe direct link security mode control procedure not accepted by the target UE p. 182
7.2.10.6 Abnormal cases p. 183
7.2.11 5G ProSe direct link re-keying procedure p. 184
7.2.11.1 General p. 184
7.2.11.2 5G ProSe direct link re-keying procedure initiation by the initiating UE p. 184
7.2.11.3 5G ProSe direct link re-keying procedure accepted by the target UE p. 185
7.2.11.4 5G ProSe direct link re-keying procedure completion by the initiating UE p. 186
7.2.11.5 Abnormal cases at the initiating UE p. 186
7.2.12 5G ProSe direct link authentication procedure p. 186
7.2.12.1 General p. 186
7.2.12.2 5G ProSe direct link authentication procedure initiation by the initiating UE p. 187
7.2.12.3 5G ProSe direct link authentication procedure accepted by the target UE p. 188
7.2.12.4 5G ProSe direct link authentication procedure completion by the initiating UE p. 188
7.2.12.5 5G ProSe direct link authentication procedure not accepted by the target UE p. 189
7.2.12.6 5G ProSe direct link authentication procedure not accepted by the initiating UE p. 189
7.2.12.7 Abnormal cases p. 189
7.2.13 5G ProSe UE-to-UE relay update procedure p. 190
7.2.13.1 General p. 190
7.2.13.2 5G ProSe UE-to-UE relay update procedure initiation by initiating UE p. 190
7.2.13.3 5G ProSe UE-to-UE relay update procedure accepted by the target UE p. 191
7.2.13.4 5G ProSe UE-to-UE relay update procedure completion by the initiating UE p. 192
7.2.13.5 5G ProSe UE-to-UE relay update procedure not accepted by the target UE p. 192
7.2.13.6 Abnormal cases p. 192
7.2.14 5G ProSe direct link identification procedure p. 192
7.2.14.1 General p. 192
7.2.14.2 5G ProSe direct link identification procedure initiated by initiating UE p. 192
7.2.14.3 5G ProSe direct link identification procedure responded by the UE p. 193
7.2.14.4 5G ProSe direct link identification procedure completion by the initiating UE p. 193
7.2.14.5 Abnormal cases p. 193
7.3 Broadcast mode 5G ProSe direct communication over PC5 p. 193
7.3.1 Overview p. 193
7.3.2 Transmission of broadcast mode 5G ProSe communication over PC5 p. 193
7.3.2.1 Initiation p. 193
7.3.2.1.1 Broadcast mode 5G ProSe communication over PC5 triggered by upper layers p. 193
7.3.2.1.2 PC5 QoS flow match and establishment p. 195
7.3.2.2 Transmission p. 196
7.3.2.3 Procedure for UE to use provisioned radio resources for 5G ProSe communication over PC5 p. 197
7.3.2.4 Privacy of 5G ProSe transmission over PC5 p. 198
7.3.3 Reception of broadcast mode 5G ProSe communication over PC5 p. 198
7.3.4 IP address allocation for broadcast mode 5G ProSe communication over PC5 p. 199
7.4 Groupcast mode 5G ProSe direct communication over PC5 p. 199
7.4.1 Overview p. 199
7.4.2 Transmission of groupcast mode 5G ProSe communication over PC5 p. 200
7.4.2.1 Initiation p. 200
7.4.2.1.1 Initiation of forming a group p. 200
7.4.2.1.2 Requirements for 5G ProSe direct communication over PC5 p. 200
7.4.2.1.3 PC5 QoS flow match and establishment p. 200
7.4.2.2 Transmission p. 201
7.4.2.3 Procedure for UE to use provisioned radio resources for 5G ProSe direct communication over PC5 p. 201
7.4.2.4 Privacy of 5G ProSe direct transmission over PC5 p. 201
7.4.3 Reception of groupcast mode 5G ProSe direct communication over PC5 p. 201
7.4.4 IP address allocation for groupcast mode 5G ProSe communication over PC5 p. 201
7.5 Void
7.6 PC3ach control protocol for 5G ProSe direct communication p. 202
7.6.1 Transport protocol for PC3ach control protocol for 5G ProSe direct communication p. 202
7.6.2 Procedures for PC3ach control protocol for 5G ProSe direct communication p. 202
7.6.2.1 Usage information report list sending procedure p. 202
7.6.2.1.1 General p. 202
7.6.2.1.2 Usage information report list sending procedure initiation p. 202
7.6.2.1.3 Usage information report list sending procedure accepted by the 5G DDNMF p. 209
7.6.2.1.4 Usage information report list sending procedure successful completion by the UE p. 209
7.6.2.1.5 Usage information report list sending procedure not accepted by the 5G DDNMF p. 209
7.6.2.1.6 Usage information report list sending procedure unsuccessful completion by the UE p. 210
7.7 Communication path switching procedure between the direct communication path over Uu and the direct communication path over PC5 p. 210
7.7.1 General p. 210
7.7.2 Path switching procedure from the direct communication path over Uu to the direct communication path over PC5 p. 210
7.7.2.1 General p. 210
7.7.2.2 Path switching procedure from the direct communication path over Uu to the direct communication path over PC5 initiation by initiating UE p. 211
7.7.2.3 Path switching procedure from the direct communication path over Uu to the direct communication path over PC5 accepted by the target UE p. 212
7.7.2.4 Path switching procedure from the direct communication path over Uu to the direct communication path over PC5 completion by the initiating UE p. 212
7.7.2.5 Path switching procedure from the direct communication path over Uu to the direct communication path over PC5 not accepted by the target UE p. 212
7.7.2.6 Abnormal cases p. 213
7.7.3 Path switching procedure from the direct communication path over PC5 to the direct communication path over Uu p. 213
7.7.3.1 General p. 213
7.7.3.2 Path switching procedure from the direct communication path over PC5 to the direct communication path over Uu initiation by initiating UE p. 214
7.7.3.3 Path switching procedure from the direct communication path over PC5 to the direct communication path over Uu accepted by the target UE p. 215
7.7.3.4 Path switching procedure from the direct communication path over PC5 to the direct communication path over Uu completion by the initiating UE p. 216
7.7.3.5 Path switching procedure from the direct communication path over PC5 to the direct communication path over Uu not accepted by the target UE p. 216
7.7.3.6 Abnormal cases p. 217
7.7.4 Principles of determining the ProSe applications to be switched p. 217
