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TS 24.554
Proximity-services (ProSe) in 5G System (5GS)
Protocol aspects

3GPP‑Page   ETSI‑search   fToC↓   Partial Content →
V19.4.0 (PDF)  2025/12  … p.
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V17.10.0  2024/12  377 p.
Rapporteur:
Mr. Gulbani, Giorgi
OPPO

full Table of Contents for  TS 24.554  Word version:  19.3.0

each clause number in 'red' refers to the equivalent title in the Partial Content
Here   Top
1Scope  p. 27
2References  p. 27
3Definitions of terms, symbols and abbreviations  p. 29
3.1Terms  p. 29
3.2Abbreviations  p. 32
4General  p. 33
4.1Overview  p. 33
5Provisioning of configuration information for 5G ProSe  p. 33
5.1Overview  p. 33
5.2Configuration and precedence of 5G ProSe configuration information  p. 33
5.2.1General  p. 33
5.2.2Precedence of 5G ProSe configuration information  p. 34
5.2.3Configuration parameters for 5G ProSe direct discovery  p. 35
5.2.4Configuration parameters for 5G ProSe direct communication over PC5 interface  p. 36
5.2.5Configuration parameters for 5G ProSe UE-to-network relay  p. 38
5.2.6Configuration parameters for 5G ProSe usage information reporting  p. 41
5.2.8Configuration parameters for 5G ProSe multi-hop UE-to-network relay  p. 45
5.2.9Configuration parameters for 5G ProSe multi-hop layer-3 UE-to-UE relay  p. 50
5.3Procedures  p. 52
5.3.1General  p. 52
5.3.2UE-requested ProSeP provisioning procedure  p. 52
5.3.2.1General  p. 52
5.3.2.2UE-requested ProSeP policy provisioning procedure initiation  p. 53
5.3.2.3UE-requested ProSeP policy provisioning procedure accepted by the network  p. 53
5.3.2.4UE-requested ProSeP policy provisioning procedure not accepted by the network  p. 55
5.3.2.5Abnormal cases on the network side  p. 55
5.3.2.6Abnormal cases on the UE  p. 55
65G ProSe direct discovery  p. 55
6.1Overview  p. 55
6.1.1Transport protocol for PC3a control protocol messages for 5G ProSe direct discovery  p. 55
6.1.2Handling of UE-initiated procedures  p. 56
6.1.2.1General  p. 56
6.1.2.25G DDNMF discovery  p. 56
6.1.3Handling of 5G DDNMF-initiated procedures  p. 56
6.1.3.1General  p. 56
6.1.3.2HTTP long polling  p. 56
6.1.3.3OMA Push  p. 57
6.2Procedures  p. 57
6.2.1Types of 5G ProSe direct discovery procedures  p. 57
6.2.2Announce request procedure for open 5G ProSe direct discovery  p. 58
6.2.2.1General  p. 58
6.2.2.2Announce request procedure initiation  p. 58
6.2.2.3Announce request procedure accepted by the 5G DDNMF  p. 60
6.2.2.4Announce request procedure completion by the UE  p. 63
6.2.2.5Announce request procedure not accepted by the 5G DDNMF  p. 63
6.2.2.6Abnormal cases  p. 64
6.2.2.6.1Abnormal cases in the UE  p. 64
6.2.2.6.2Abnormal cases in the 5G DDNMF  p. 65
6.2.3Announce request procedure for restricted 5G ProSe direct discovery model A  p. 65
6.2.3.1General  p. 65
6.2.3.2Announce request procedure initiation  p. 65
6.2.3.3Announce request procedure accepted by the 5G DDNMF  p. 67
6.2.3.4Announce request procedure completion by the UE  p. 69
6.2.3.5Announce request procedure not accepted by the 5G DDNMF  p. 70
6.2.3.6Abnormal cases  p. 71
6.2.3.6.1Abnormal cases in the UE  p. 71
6.2.3.6.2Abnormal cases in the 5G DDNMF  p. 71
6.2.4Monitor request procedure for open 5G ProSe direct discovery  p. 72
6.2.4.1General  p. 72
6.2.4.2Monitor request procedure Initiation  p. 72
6.2.4.3Monitor request procedure accepted by the 5G DDNMF  p. 73
6.2.4.4Monitor request procedure completion by the UE  p. 75
6.2.4.5Monitor request procedure not accepted by the 5G DDNMF  p. 75
6.2.4.6Abnormal cases  p. 76
6.2.4.6.1Abnormal cases in the UE  p. 76
6.2.4.6.2Abnormal cases in the 5G DDNMF  p. 76
6.2.5Monitor request procedure for restricted 5G ProSe direct discovery model A  p. 77
6.2.5.1General  p. 77
6.2.5.2Monitor request procedure Initiation  p. 77
6.2.5.3Monitor request procedure accepted by the 5G DDNMF  p. 78
6.2.5.4Monitor request procedure completion by the UE  p. 80
6.2.5.5Monitor request procedure not accepted by the 5G DDNMF  p. 81
6.2.5.6Abnormal cases  p. 82
6.2.5.6.1Abnormal cases in the UE  p. 82
6.2.5.6.2Abnormal cases in the 5G DDNMF  p. 82
6.2.6Discoveree request procedure for restricted 5G ProSe direct discovery model B  p. 82
6.2.6.1General  p. 82
6.2.6.2Discoveree request procedure initiation  p. 83
6.2.6.3Discoveree request procedure accepted by the 5G DDNMF  p. 84
6.2.6.4Discoveree request procedure completion by the UE  p. 86
6.2.6.5Discoveree request procedure not accepted by the 5G DDNMF  p. 86
6.2.6.6Abnormal cases  p. 87
6.2.6.6.1Abnormal cases in the UE  p. 87
6.2.6.6.2Abnormal cases in the 5G DDNMF  p. 87
6.2.7Discoverer request procedure for restricted 5G ProSe direct discovery model B  p. 87
6.2.7.1General  p. 87
6.2.7.2Discoverer request procedure initiation  p. 88
6.2.7.3Discoverer request procedure accepted by the 5G DDNMF  p. 89
6.2.7.4Discoverer request procedure completion by the UE  p. 91
6.2.7.5Discoverer request procedure not accepted by the 5G DDNMF  p. 92
6.2.7.6Abnormal cases  p. 92
6.2.7.6.1Abnormal cases in the UE  p. 92
6.2.7.6.2Abnormal cases in the 5G DDNMF  p. 93
6.2.8Match report procedure for open 5G ProSe direct discovery  p. 93
6.2.8.1General  p. 93
6.2.8.2Match report procedure initiation  p. 93
6.2.8.3Match report procedure accepted by the 5G DDNMF  p. 95
6.2.8.4Match report procedure completion by the UE  p. 96
6.2.8.5Match report procedure not accepted by the 5G DDNMF  p. 97
6.2.8.6Abnormal cases  p. 97
6.2.8.6.1Abnormal cases in the UE  p. 97
6.2.9Match report procedure for restricted 5G ProSe direct discovery model A  p. 97
6.2.9.1General  p. 97
6.2.9.2Match report procedure initiation  p. 98
6.2.9.3Match report procedure accepted by the 5G DDNMF  p. 100
6.2.9.4Match report procedure completion by the UE  p. 100
6.2.9.5Match report procedure not accepted by the 5G DDNMF  p. 101
6.2.9.6Abnormal cases  p. 101
6.2.9.6.1Abnormal cases in the UE  p. 101
6.2.10Match report procedure for restricted 5G ProSe direct discovery model B  p. 101
6.2.10.1General  p. 101
6.2.10.2Match report procedure initiation  p. 102
6.2.10.3Match report procedure accepted by the 5G DDNMF  p. 104
6.2.10.4Match report procedure completion by the UE  p. 105
6.2.10.5Match report procedure not accepted by the 5G DDNMF  p. 105
6.2.10.6Abnormal cases  p. 106
6.2.10.6.1Abnormal cases in the UE  p. 106
6.2.11Direct discovery update procedure for open discovery  p. 106
6.2.11.1General  p. 106
6.2.11.2Direct discovery update procedure initiation  p. 106
6.2.11.3Direct discovery update procedure accepted by the UE  p. 107
6.2.11.4Direct discovery update procedure completed by the 5G DDNMF  p. 108
6.2.11.5Direct discovery update procedure not accepted by the UE  p. 108
6.2.11.6Abnormal cases  p. 108
6.2.11.6.1Abnormal cases in the 5G DDNMF  p. 108
6.2.11.6.2Abnormal cases in the UE  p. 109
6.2.12Direct discovery update procedure for restricted discovery  p. 109
6.2.12.1General  p. 109
6.2.12.2Revocation of restricted discovery filters  p. 109
6.2.12.2.1Restricted discovery filters revocation procedure initiation  p. 109
6.2.12.2.2Restricted discovery filters revocation procedure accepted by the UE  p. 109
6.2.12.2.3Restricted discovery filters revocation procedure completion by the 5G DDNMF  p. 110
6.2.12.2.4Restricted discovery filters revocation procedure not accepted by the UE  p. 110
6.2.12.2.5Abnormal cases  p. 110
6.2.12.2.5.1Abnormal cases in the 5G DDNMF  p. 110
6.2.12.2.5.2Abnormal cases in the UE  p. 110
6.2.12.3Allocation of new ProSe restricted code  p. 111
6.2.12.3.1New ProSe restricted code allocation procedure initiation  p. 111
6.2.12.3.2ProSe restricted code allocation procedure accepted by the UE  p. 111
6.2.12.3.3ProSe restricted code allocation procedure completion by the 5G DDNMF  p. 111
6.2.12.3.4ProSe restricted code allocation procedure not accepted by the UE  p. 112
6.2.12.3.5Abnormal cases  p. 112
6.2.12.3.5.1Abnormal cases in the 5G DDNMF  p. 112
6.2.12.3.5.2Abnormal cases in the UE  p. 112
6.2.13Announcing alert procedure  p. 112
6.2.13.1General  p. 112
6.2.13.2Announcing alert procedure initiation  p. 112
6.2.13.3Announcing alert procedure accepted by the UE  p. 113
6.2.13.4Announcing alert procedure completion by the 5G DDNMF  p. 114
6.2.13.5Announcing alert procedure not accepted by the UE  p. 114
6.2.13.6Abnormal cases  p. 114
6.2.13.6.1Abnormal cases in the 5G DDNMF  p. 114
6.2.13.6.2Abnormal cases in the UE  p. 115
6.2.145G ProSe direct discovery procedure over PC5 interface  p. 115
6.2.14.1General  p. 115
6.2.14.2Procedures  p. 116
6.2.14.2.15G ProSe direct discovery procedure over PC5 interface with model A  p. 116
6.2.14.2.1.1General  p. 116
6.2.14.2.1.2Announcing UE procedure for 5G ProSe direct discovery initiation  p. 116
6.2.14.2.1.3Announcing UE procedure for 5G ProSe direct discovery completion  p. 118
6.2.14.2.1.4Monitoring UE procedure for 5G ProSe direct discovery initiation  p. 118
6.2.14.2.1.5Monitoring UE procedure for 5G ProSe direct discovery completion  p. 120
6.2.14.2.25G ProSe direct discovery procedure over PC5 interface with model B  p. 120
6.2.14.2.2.1General  p. 120
6.2.14.2.2.2Discoverer UE procedure for 5G ProSe direct discovery initiation  p. 120
6.2.14.2.2.3Discoverer UE procedure for 5G ProSe direct discovery completion  p. 122
6.2.14.2.2.4Discoveree UE procedure for 5G ProSe direct discovery initiation  p. 122
6.2.14.2.2.5Discoveree UE procedure for 5G ProSe direct discovery completion  p. 125
6.2.15Group member discovery over PC5 interface  p. 125
6.2.15.1General  p. 125
6.2.15.2Procedures  p. 126
6.2.15.2.1Group member discovery over PC5 interface with model A  p. 126
6.2.15.2.1.1General  p. 126
6.2.15.2.1.2Announcing UE procedure for group member discovery initiation  p. 126
6.2.15.2.1.3Announcing UE procedure for group member discovery completion  p. 128
6.2.15.2.1.4Monitoring UE procedure for group member discovery initiation  p. 128
6.2.15.2.1.5Monitoring UE procedure for group member discovery completion  p. 129
6.2.15.2.2Group member discovery over PC5 interface with model B  p. 130
6.2.15.2.2.1General  p. 130
6.2.15.2.2.2Discoverer UE procedure for group member discovery initiation  p. 130
6.2.15.2.2.3Discoverer UE procedure for group member discovery completion  p. 132
6.2.15.2.2.4Discoveree UE procedure for group member discovery initiation  p. 132
6.2.15.2.2.5Discoveree UE procedure for group member discovery completion  p. 134
6.2.16Procedure for UE to use provisioned radio resources for 5G ProSe direct discovery  p. 135
6.2.175G PKMF address request procedure  p. 136
6.2.17.1General  p. 136
6.2.17.25G PKMF address request procedure initiation by the UE  p. 136
6.2.17.35G PKMF address request procedure accepted by the 5G DDNMF  p. 137
6.2.17.45G PKMF address request procedure completed by the UE  p. 137
6.2.17.55G PKMF address request procedure not accepted by the 5G DDNMF  p. 137
6.2.17.6Abnormal cases  p. 138
6.2.17.6.1Abnormal cases in the UE  p. 138
6.2.17.6.2Abnormal cases in the 5G DDNMF  p. 138
75G ProSe direct communications  p. 138
7.1Overview  p. 138
7.2Unicast mode 5G ProSe direct communication over PC5  p. 139
7.2.1Overview  p. 139
7.2.25G ProSe direct link establishment procedure  p. 140
7.2.2.1General  p. 140
7.2.2.25G ProSe direct link establishment procedure initiation by initiating UE  p. 140
7.2.2.35G ProSe direct link establishment procedure accepted by the target UE  p. 149
7.2.2.45G ProSe direct link establishment procedure completion by the initiating UE  p. 154
7.2.2.55G ProSe direct link establishment procedure not accepted by the target UE  p. 155
7.2.2.6Abnormal cases  p. 161
7.2.2.6.1Abnormal cases at the initiating UE  p. 161
7.2.2.6.2Abnormal cases at the target UE  p. 162
7.2.35G ProSe direct link modification procedure  p. 162
7.2.3.1General  p. 162
7.2.3.25G ProSe direct link modification procedure initiated by initiating UE  p. 163
7.2.3.35G ProSe direct link modification procedure accepted by the target UE  p. 169
7.2.3.45G ProSe direct link modification procedure completion by the initiating UE  p. 173
7.2.3.4a5G ProSe direct link modification procedure completion by the target UE  p. 174
7.2.3.55G ProSe direct link modification procedure not accepted by the target UE  p. 174
7.2.3.6Abnormal cases  p. 176
7.2.3.6.1Abnormal cases at the initiating UE  p. 176
7.2.3.6.2Abnormal cases at the target UE  p. 177
7.2.3.7Void  p. …
7.2.45G ProSe direct link identifier update procedure  p. 177
7.2.4.1General  p. 177
7.2.4.25G ProSe direct link identifier update procedure initiation by initiating UE  p. 177
7.2.4.35G ProSe direct link identifier update procedure accepted by the target UE  p. 179
7.2.4.45G ProSe direct link identifier update procedure acknowledged by the initiating UE  p. 181
7.2.4.55G ProSe direct link identifier update procedure completion by the target UE  p. 181
7.2.4.65G ProSe direct link identifier update procedure not accepted by the target UE  p. 182
7.2.4.7Abnormal cases  p. 182
7.2.4.7.1Abnormal cases at the initiating UE  p. 182
7.2.4.7.2Abnormal cases at the target UE  p. 183
7.2.55G ProSe direct link keep-alive procedure  p. 183
7.2.5.1General  p. 183
7.2.5.25G ProSe direct link keep-alive procedure initiation by the initiating UE  p. 184
7.2.5.35G ProSe direct link keep-alive procedure accepted by the target UE  p. 185
7.2.5.45G ProSe direct link keep-alive procedure completion by the initiating UE  p. 185
7.2.5.5Abnormal cases  p. 185
7.2.5.5.1Abnormal cases at the initiating UE  p. 185
7.2.5.5.2Abnormal cases at the target UE  p. 185
7.2.65G ProSe direct link release procedure  p. 186
7.2.6.1General  p. 186
7.2.6.25G ProSe direct link release procedure initiation by initiating UE  p. 186
7.2.6.35G ProSe direct link release procedure accepted by the target UE  p. 190
7.2.6.45G ProSe direct link release procedure completion by the initiating UE  p. 191
7.2.6.5Abnormal cases  p. 191
7.2.6.5.1Abnormal cases at the initiating UE  p. 191
7.2.7PC5 QoS flow establishment over 5G ProSe direct link  p. 191
7.2.8PC5 QoS flow match over 5G ProSe direct link  p. 192
7.2.9Data transmission over 5G ProSe direct link  p. 193
7.2.9.1Transmission  p. 193
7.2.9.2Procedure for UE to use provisioned radio resources for ProSe communication over PC5  p. 193
7.2.105G ProSe direct link security mode control procedure  p. 193
7.2.10.1General  p. 193
7.2.10.25G ProSe direct link security mode control procedure initiation by the initiating UE  p. 194
7.2.10.35G ProSe direct link security mode control procedure accepted by the target UE  p. 198
7.2.10.45G ProSe direct link security mode control procedure completion by the initiating UE  p. 201
7.2.10.55G ProSe direct link security mode control procedure not accepted by the target UE  p. 202
7.2.10.6Abnormal cases  p. 203
7.2.10.6.1Abnormal cases at the initiating UE  p. 203
7.2.115G ProSe direct link re-keying procedure  p. 204
7.2.11.1General  p. 204
7.2.11.25G ProSe direct link re-keying procedure initiation by the initiating UE  p. 204
7.2.11.35G ProSe direct link re-keying procedure accepted by the target UE  p. 205
7.2.11.45G ProSe direct link re-keying procedure completion by the initiating UE  p. 206
7.2.11.5Abnormal cases at the initiating UE  p. 206
7.2.125G ProSe direct link authentication procedure  p. 206
7.2.12.1General  p. 206
7.2.12.25G ProSe direct link authentication procedure initiation by the initiating UE  p. 207
7.2.12.35G ProSe direct link authentication procedure accepted by the target UE  p. 208
7.2.12.45G ProSe direct link authentication procedure completion by the initiating UE  p. 208
7.2.12.55G ProSe direct link authentication procedure not accepted by the target UE  p. 209
7.2.12.65G ProSe direct link authentication procedure not accepted by the initiating UE  p. 209
7.2.12.7Abnormal cases  p. 209
7.2.12.7.1Abnormal cases at the initiating UE  p. 209
7.2.135G ProSe UE-to-UE relay update procedure  p. 210
7.2.13.1General  p. 210
7.2.13.25G ProSe UE-to-UE relay update procedure initiation by initiating UE  p. 210
7.2.13.35G ProSe UE-to-UE relay update procedure accepted by the target UE  p. 211
7.2.13.45G ProSe UE-to-UE relay update procedure completion by the initiating UE  p. 212
7.2.13.55G ProSe UE-to-UE relay update procedure not accepted by the target UE  p. 212
7.2.13.6Abnormal cases  p. 212
7.2.13.6.1Abnormal cases at the initiating UE  p. 212
7.2.145G ProSe direct link identification procedure  p. 212
7.2.14.1General  p. 212
7.2.14.25G ProSe direct link identification procedure initiated by initiating UE  p. 212
7.2.14.35G ProSe direct link identification procedure responded by the UE  p. 213
7.2.14.45G ProSe direct link identification procedure completion by the initiating UE  p. 213
7.2.14.5Abnormal cases  p. 213
7.2.14.5.1Abnormal cases at the initiating UE  p. 213
7.2.14.5.2Abnormal cases at the target UE  p. 213
7.3Broadcast mode 5G ProSe direct communication over PC5  p. 213
7.3.1Overview  p. 213
7.3.2Transmission of broadcast mode 5G ProSe communication over PC5  p. 214
7.3.2.1Initiation  p. 214
7.3.2.1.1Broadcast mode 5G ProSe communication over PC5 triggered by upper layers  p. 214
7.3.2.1.2PC5 QoS flow match and establishment  p. 215
7.3.2.2Transmission  p. 216
7.3.2.3Procedure for UE to use provisioned radio resources for 5G ProSe communication over PC5  p. 217
7.3.2.4Privacy of 5G ProSe transmission over PC5  p. 218
7.3.3Reception of broadcast mode 5G ProSe communication over PC5  p. 219
7.3.4IP address allocation for broadcast mode 5G ProSe communication over PC5  p. 219
7.4Groupcast mode 5G ProSe direct communication over PC5  p. 219
7.4.1Overview  p. 219
7.4.2Transmission of groupcast mode 5G ProSe communication over PC5  p. 220
7.4.2.1Initiation  p. 220
7.4.2.1.1Initiation of forming a group  p. 220
7.4.2.1.2Requirements for 5G ProSe direct communication over PC5  p. 220
7.4.2.1.3PC5 QoS flow match and establishment  p. 220
7.4.2.2Transmission  p. 221
7.4.2.3Procedure for UE to use provisioned radio resources for 5G ProSe direct communication over PC5  p. 221
7.4.2.4Privacy of 5G ProSe direct transmission over PC5  p. 221
7.4.3Reception of groupcast mode 5G ProSe direct communication over PC5  p. 221
7.4.4IP address allocation for groupcast mode 5G ProSe communication over PC5  p. 221
7.5Void  p. …
7.5.1Void  p. …
7.5.2Void  p. …
7.5.3Void  p. …
7.6PC3ach control protocol for 5G ProSe direct communication  p. 222
7.6.1Transport protocol for PC3ach control protocol for 5G ProSe direct communication  p. 222
7.6.2Procedures for PC3ach control protocol for 5G ProSe direct communication  p. 222
7.6.2.1Usage information report list sending procedure  p. 222
7.6.2.1.1General  p. 222
7.6.2.1.2Usage information report list sending procedure initiation  p. 222
7.6.2.1.3Usage information report list sending procedure accepted by the 5G DDNMF  p. 229
7.6.2.1.4Usage information report list sending procedure successful completion by the UE  p. 229
7.6.2.1.5Usage information report list sending procedure not accepted by the 5G DDNMF  p. 229
7.6.2.1.6Usage information report list sending procedure unsuccessful completion by the UE  p. 230
7.7Communication path switching procedure between the direct communication path over Uu and the direct communication path over PC5  p. 230
7.7.1General  p. 230
7.7.2Path switching procedure from the direct communication path over Uu to the direct communication path over PC5  p. 230
7.7.2.1General  p. 230
7.7.2.2Path switching procedure from the direct communication path over Uu to the direct communication path over PC5 initiation by initiating UE  p. 231
7.7.2.3Path switching procedure from the direct communication path over Uu to the direct communication path over PC5 accepted by the target UE  p. 232
7.7.2.4Path switching procedure from the direct communication path over Uu to the direct communication path over PC5 completion by the initiating UE  p. 232
7.7.2.5Path switching procedure from the direct communication path over Uu to the direct communication path over PC5 not accepted by the target UE  p. 232
7.7.2.6Abnormal cases  p. 233
7.7.2.6.1Abnormal cases at the initiating UE  p. 233
7.7.2.6.2Abnormal cases at the target UE  p. 233
7.7.3Path switching procedure from the direct communication path over PC5 to the direct communication path over Uu  p. 233
7.7.3.1General  p. 233
7.7.3.2Path switching procedure from the direct communication path over PC5 to the direct communication path over Uu initiation by initiating UE  p. 234
7.7.3.3Path switching procedure from the direct communication path over PC5 to the direct communication path over Uu accepted by the target UE  p. 235
7.7.3.4Path switching procedure from the direct communication path over PC5 to the direct communication path over Uu completion by the initiating UE  p. 236
7.7.3.5Path switching procedure from the direct communication path over PC5 to the direct communication path over Uu not accepted by the target UE  p. 236
7.7.3.6Abnormal cases  p. 237
7.7.3.6.1Abnormal cases at the initiating UE  p. 237
7.7.3.6.2Abnormal cases at the target UE  p. 237
7.7.4Principles of determining the ProSe applications to be switched  p. 237
85G ProSe UE-to-network relay  p. 239
8.1Overview  p. 239
8.2Procedures  p. 239
8.2.1UE-to-network relay discovery over PC5 interface  p. 239
8.2.1.1General  p. 239
8.2.1.2UE-to-network relay discovery over PC5 interface with model A  p. 241
8.2.1.2.1General  p. 241
8.2.1.2.2Announcing UE relay discovery for UE-to-network relay discovery  p. 241
8.2.1.2.2.1General  p. 241
8.2.1.2.2.2Announcing UE procedure for UE-to-network relay discovery initiation  p. 241
8.2.1.2.2.3Announcing UE procedure for UE-to-network relay discovery completion  p. 243
8.2.1.2.3Monitoring UE relay discovery for UE-to-network relay discovery  p. 243
8.2.1.2.3.1General  p. 243
8.2.1.2.3.2Monitoring UE procedure for UE-to-network relay discovery initiation  p. 244
8.2.1.2.3.3Monitoring UE procedure for UE-to-network relay discovery completion  p. 246
8.2.1.2.4Announcing UE procedure for relay discovery additional information  p. 246
8.2.1.2.4.1General  p. 246
8.2.1.2.4.2Announcing procedure for relay discovery additional information  p. 246
8.2.1.2.5Monitoring UE procedure for relay discovery additional information  p. 248
8.2.1.2.5.1General  p. 248
8.2.1.2.5.2Monitoring procedure for relay discovery additional information  p. 248
8.2.1.3UE-to-network relay discovery over PC5 interface with model B  p. 249
8.2.1.3.1Discoverer UE procedure for UE-to-network Relay discovery  p. 249
8.2.1.3.1.1General  p. 249
8.2.1.3.1.2Discoverer UE procedure for UE-to-network relay discovery initiation  p. 250
8.2.1.3.1.3Discoverer UE procedure for UE-to-network Relay discovery completion  p. 253
8.2.1.3.2Discoveree UE procedure for UE-to-network Relay discovery  p. 253
8.2.1.3.2.1General  p. 253
8.2.1.3.2.2Discoveree UE procedure for UE-to-network relay discovery initiation  p. 253
8.2.1.3.2.3Discoveree UE procedure for UE-to-network relay discovery completion  p. 256
8.2.1.4Procedure for UE to use provisioned radio resources for 5G ProSe UE-to-network discovery  p. 256
8.2.2UE-to-network relay selection procedure  p. 257
8.2.2.1General  p. 257
8.2.2.2UE-to-network relay selection procedure initiation  p. 257
8.2.2.3UE-to-network relay selection procedure completion  p. 258
8.2.3UE-to-network relay reselection procedure  p. 258
8.2.3.1General  p. 258
8.2.3.2UE-to-network relay reselection procedure initiation  p. 258
8.2.4Procedure for UE to use provisioned radio resources for 5G ProSe UE-to-network relay communication  p. 259
8.2.5IP address allocation for 5G ProSe remote UE in 5G ProSe layer-3 UE-to-network relay procedure  p. 260
8.2.5aIPv6 prefix delegation via DHCPv6 for 5G ProSe layer-3 UE-to-network relay  p. 261
8.2.6QoS handling for 5G ProSe UE-to-network relay  p. 261
8.2.6.1General  p. 261
8.2.6.2QoS handling for 5G ProSe layer-2 UE-to-network relay  p. 261
8.2.6.3QoS handling for 5G ProSe layer-3 UE-to-network relay without N3IWF  p. 261
8.2.6.3.1General  p. 261
8.2.6.3.2QoS flows handling initiated by the network  p. 262
8.2.6.3.3PC5 QoS flows handling initiated by the 5G ProSe layer-3 remote UE  p. 262
8.2.6.4QoS handling for 5G ProSe layer-3 UE-to-network relay with N3IWF  p. 263
8.2.6.4.1General  p. 263
8.2.6.4.2QoS handling with QoS signalling procedure  p. 263
8.2.75G ProSe layer-3 UE-to-network relay with N3IWF support  p. 264
8.2.7.1General  p. 264
8.2.7.25G ProSe layer-3 UE-to-network relay UE establishing PDU session to access N3IWF  p. 265
8.2.7.3N3IWF selection for 5G ProSe layer-3 remote UE  p. 265
8.2.85G ProSe additional parameters announcement procedure  p. 265
8.2.8.1General  p. 265
8.2.8.25G ProSe additional parameters announcement procedure initiation by the 5G ProSe layer-3 remote UE  p. 265
8.2.8.35G ProSe additional parameters announcement procedure accepted by the 5G ProSe layer-3 UE-to-network relay UE  p. 266
8.2.8.45G ProSe additional parameters announcement procedure completion by the 5G ProSe layer-3 remote UE  p. 266
8.2.8.5Abnormal cases  p. 266
8.2.8.5.1Abnormal cases in the 5G ProSe layer-3 remote UE  p. 266
8.2.95G ProSe AA message reliable transport procedure  p. 267
8.2.9.1General  p. 267
8.2.9.25G ProSe AA message reliable transport procedure initiation  p. 267
8.2.9.35G ProSe AA message reliable transport procedure accepted by the target UE  p. 267
8.2.9.45G ProSe AA message reliable transport procedure completion by the initiating UE  p. 268
8.2.9.5Abnormal cases  p. 268
8.2.9.5.1Abnormal cases at the initiating UE  p. 268
8.2.105G ProSe security procedures over PC8 interface  p. 268
8.2.10.1General  p. 268
8.2.10.1.1Transport protocol for PC8 messages  p. 268
8.2.10.1.2Handling of UE-initiated procedures  p. 268
8.2.10.1.2.1General  p. 268
8.2.10.1.2.25G PKMF discovery  p. 269
8.2.10.2Procedures  p. 269
8.2.10.2.1Types of 5G ProSe procedures over PC8 interface  p. 269
8.2.10.2.25G ProSe UE-to-network relay discovery security parameters request procedure  p. 269
8.2.10.2.2.1General  p. 269
8.2.10.2.2.25G ProSe UE-to-network relay discovery security parameters request procedure initiation  p. 270
8.2.10.2.2.35G ProSe UE-to-network relay discovery security parameters request procedure accepted by the 5G PKMF  p. 271
8.2.10.2.2.45G ProSe UE-to-network relay discovery security parameters request procedure completion by the UE  p. 273
8.2.10.2.2.55G ProSe UE-to-network relay discovery security parameters request procedure not accepted by the 5G PKMF  p. 273
8.2.10.2.2.6Abnormal cases in the UE  p. 273
8.2.10.2.2.7Abnormal cases in the 5G PKMF  p. 274
8.2.10.2.35G ProSe remote user key request procedure  p. 274
8.2.10.2.3.1General  p. 274
8.2.10.2.3.25G ProSe remote user key request procedure initiation  p. 274
8.2.10.2.3.35G ProSe remote user key request procedure accepted by the 5G PKMF  p. 275
8.2.10.2.3.45G ProSe remote user key request procedure completion by the UE  p. 275
8.2.10.2.3.55G ProSe remote user key request procedure not accepted by the 5G PKMF  p. 275
8.2.10.2.3.6Abnormal cases in the UE  p. 276
8.2.10.2.3.7Abnormal cases in the 5G PKMF  p. 276
8.2.10.2.4Key request procedure  p. 276
8.2.10.2.4.1General  p. 276
8.2.10.2.4.2Key request procedure initiation  p. 276
8.2.10.2.4.3Key request procedure accepted by the 5G PKMF  p. 277
8.2.10.2.4.4Key request procedure completion by the UE  p. 278
8.2.10.2.4.5Key request procedure not accepted by the 5G PKMF  p. 278
8.2.10.2.4.6Abnormal cases in the UE  p. 278
8.2.10.2.4.7Abnormal cases in the 5G PKMF  p. 278
8.2.11UE-to-network relay unicast direct communication over PC5 interface  p. 278
8.2.125G ProSe security procedures over PC3a interface  p. 279
8.2.12.1General  p. 279
8.2.12.1.1Transport protocol for PC3a messages  p. 279
8.2.12.1.2Handling of UE-initiated procedures  p. 279
8.2.12.1.2.1General  p. 279
8.2.12.1.2.25G DDNMF discovery  p. 279
8.2.12.2Procedures  p. 279
8.2.12.2.1Types of 5G ProSe security procedures over PC3a interface  p. 279
8.2.12.2.25G ProSe UE-to-network relay discovery security material request procedure  p. 280
8.2.12.2.2.1General  p. 280
8.2.12.2.2.25G ProSe UE-to-network relay discovery security material request procedure initiation  p. 280
8.2.12.2.2.35G ProSe UE-to-network relay discovery security material request procedure accepted by the 5G DDNMF  p. 281
8.2.12.2.2.45G ProSe UE-to-network relay discovery security material request procedure completion by the UE  p. 283
8.2.12.2.2.55G ProSe UE-to-network relay discovery security material request procedure not accepted by the 5G DDNMF  p. 283
8.2.12.2.2.6Abnormal cases in the UE  p. 283
8.2.12.2.2.7Abnormal cases in the 5G DDNMF  p. 284
8.2.13Communication path switching between 5G ProSe UE-to-network relays  p. 284
8.2.13.1General  p. 284
8.2.13.2Target UE-to-network relay discovery and selection for communication path switching  p. 284
8.2.13.3Path switching to 5G ProSe layer-3 UE-to-network relay without N3IWF  p. 285
8.2.13.4Path switching to 5G ProSe layer-3 UE-to-network relay with N3IWF  p. 285
8.2.13.5Path switching to 5G ProSe layer-2 UE-to-network relay  p. 285
8.2.145G ProSe public warning notification relay procedure  p. 286
8.2.14.1General  p. 286
8.2.14.25G ProSe public warning notification relay procedure initiation for 5G ProSe layer-3 UE-to-network relay  p. 286
8.2.14.3Reception of 5G ProSe public warning notification relay message  p. 287
8.2.15Multi-path communication via a PDU session and via 5G ProSe UE-to-network relay  p. 287
8.2.15.1General  p. 287
8.2.15.2Multi-path communication via a PDU session and via 5G ProSe layer-3 UE-to-network relay  p. 287
8.2.15.3Multi-path communication via a PDU session and via 5G ProSe layer-2 UE-to-network relay  p. 288
8a5G ProSe UE-to-UE relay  p. 288
8a.1Overview  p. 288
8a.2Procedures  p. 288
8a.2.15G ProSe UE-to-UE relay discovery over PC5 interface  p. 288
8a.2.1.1General  p. 288
8a.2.1.2UE-to-UE relay discovery over PC5 interface with model A  p. 289
8a.2.1.2.1General  p. 289
8a.2.1.2.2Announcing UE relay discovery for UE-to-UE relay discovery  p. 289
8a.2.1.2.2.1General  p. 289
8a.2.1.2.2.2Announcing UE procedure for UE-to-UE relay discovery initiation  p. 289
8a.2.1.2.2.3Announcing UE procedure for UE-to-UE relay discovery completion  p. 292
8a.2.1.2.3Monitoring UE relay discovery for UE-to-UE relay discovery  p. 292
8a.2.1.2.3.1General  p. 292
8a.2.1.2.3.2Monitoring UE procedure for UE-to-UE relay discovery initiation  p. 292
8a.2.1.2.3.3Monitoring UE procedure for UE-to-UE relay discovery completion  p. 294
8a.2.1.3UE-to-UE relay discovery over PC5 interface with model B  p. 294
8a.2.1.3.1General  p. 294
8a.2.1.3.2Discoverer end UE procedure for UE-to-UE Relay discovery  p. 294
8a.2.1.3.2.1General  p. 294
8a.2.1.3.2.2Discoverer end UE procedure for UE-to-UE relay discovery initiation  p. 294
8a.2.1.3.2.3Discoverer end UE procedure for UE-to-UE relay discovery completion  p. 298
8a.2.1.3.3Relay UE procedure for UE-to-UE Relay discovery  p. 298
8a.2.1.3.3.1General  p. 298
8a.2.1.3.3.2Relay UE procedure for UE-to-UE relay discovery initiation  p. 298
8a.2.1.3.3.3Relay UE procedure for UE-to-UE relay discovery completion  p. 302
8a.2.1.3.4Discoveree end UE procedure for UE-to-UE Relay discovery  p. 302
8a.2.1.3.4.1General  p. 302
8a.2.1.3.4.2Discoveree end UE procedure for UE-to-UE relay discovery initiation  p. 302
8a.2.1.3.4.3Discoveree end UE procedure for UE-to-UE relay discovery completion  p. 305
8a.2.25G ProSe UE-to-UE relay selection procedure  p. 305
8a.2.2.1General  p. 305
8a.2.2.2UE-to-UE relay selection procedure initiation  p. 305
8a.2.2.3UE-to-UE relay selection procedure completion  p. 305
8a.2.35G ProSe UE-to-UE relay reselection procedure  p. 306
8a.2.3.1General  p. 306
8a.2.3.2UE-to-UE relay reselection procedure initiation  p. 306
8a.2.3.3Candidate 5G ProSe UE-to-UE relay discovery procedure  p. 307
8a.2.45G ProSe UE-to-UE relay unicast direct communication over PC5 interface  p. 308
8a.2.5IP address allocation for 5G ProSe layer-3 end UE in 5G ProSe layer-3 UE-to-UE relay procedure  p. 308
8a.2.6Security procedures for 5G ProSe layer-2 end UEs  p. 308
8a.2.7QoS handling for 5G ProSe UE-to-UE relay  p. 309
8a.2.7.1General  p. 309
8a.2.7.2QoS handling for 5G ProSe layer-3 UE-to-UE relay  p. 309
8a.2.7.2.1General  p. 309
8a.2.7.2.2PC5 QoS flows handling initiated by the source 5G ProSe layer-3 end UE  p. 309
8a.2.7.3QoS handling for 5G ProSe layer-2 UE-to-UE relay  p. 310
8a.2.8Support for Ethernet traffic via 5G ProSe layer-3 UE-to-UE relay  p. 310
8a.2.95G ProSe AA message reliable transport procedure  p. 311
8a.2.105G ProSe UE-to-UE relay direct link security establishment procedure  p. 311
8a.2.10.1General  p. 311
8a.2.10.25G ProSe UE-to-UE relay direct link security establishment procedure initiation by initiating UE  p. 311
8a.2.10.35G ProSe UE-to-UE relay direct link security establishment procedure accepted by the target UE  p. 313
8a.2.10.45G ProSe UE-to-UE relay direct link security establishment procedure completion by the initiating UE  p. 314
8a.2.10.55G ProSe UE-to-UE relay direct link security establishment procedure not accepted by the target UE  p. 314
8a.2.10.6Abnormal cases  p. 316
8a.2.10.6.1Abnormal cases at the initiating UE  p. 316
8a.2.10.6.2Abnormal cases at the target UE  p. 316
8a.2.115G ProSe security procedures over PC3a interface for 5G ProSe UE-to-UE relay  p. 316
8a.2.11.1General  p. 316
8a.2.11.1.1Transport protocol for PC3a messages  p. 316
8a.2.11.1.2Handling of UE-initiated procedures  p. 316
8a.2.11.2Procedures  p. 316
8a.2.11.2.1Types of 5G ProSe security procedures over PC3a interface for 5G ProSe UE-to-UE relay  p. 316
8a.2.11.2.25G ProSe UE-to-UE relay discovery security material request procedure  p. 317
8a.2.11.2.2.1General  p. 317
8a.2.11.2.2.25G ProSe UE-to-UE relay discovery security material request procedure initiation  p. 317
8a.2.11.2.2.35G ProSe UE-to-UE relay discovery security material request procedure accepted by the 5G DDNMF  p. 318
8a.2.11.2.2.45G ProSe UE-to-UE relay discovery security material request procedure completion by the UE  p. 320
8a.2.11.2.2.55G ProSe UE-to-UE relay discovery security material request procedure not accepted by the 5G DDNMF  p. 320
8a.2.11.2.2.6Abnormal cases in the UE  p. 320
8a.2.11.2.2.7Abnormal cases in the 5G DDNMF  p. 321
8a.2.125G ProSe security procedures over PC8 interface for 5G ProSe UE-to-UE relay  p. 321
8a.2.12.1General  p. 321
8a.2.12.1.1Transport protocol for PC8 messages  p. 321
8a.2.12.1.2Handling of UE-initiated procedures  p. 321
8a.2.12.2Procedures  p. 321
8a.2.12.2.1Types of 5G ProSe security procedures over PC8 interface for 5G ProSe UE-to-UE relay  p. 321
8a.2.12.2.25G ProSe UE-to-UE relay discovery security parameters request procedure  p. 322
8a.2.12.2.2.1General  p. 322
8a.2.12.2.2.25G ProSe UE-to-UE relay discovery security parameters request procedure initiation  p. 322
8a.2.12.2.2.35G ProSe UE-to-UE relay discovery security parameters request procedure accepted by the 5G PKMF  p. 323
8a.2.12.2.2.45G ProSe UE-to-UE relay discovery security parameters request procedure completion by the UE  p. 325
8a.2.12.2.2.55G ProSe UE-to-UE relay discovery security parameters request procedure not accepted by the 5G PKMF  p. 325
8a.2.12.2.2.6Abnormal cases in the UE  p. 325
8a.2.12.2.2.7Abnormal cases in the 5G PKMF  p. 326
8a.2.12.2.35G ProSe end UE key request procedure  p. 326
8a.2.12.2.45G ProSe UE-to-UE relay UE key request procedure  p. 326
8a.2.135G ProSe direct discovery set transfer procedure  p. 326
8a.2.13.1General  p. 326
8a.2.13.25G ProSe direct discovery set transfer procedure initiation by initiating UE  p. 326
8a.2.13.35G ProSe direct discovery set procedure ack by the target UE  p. 327
8a.2.13.45G ProSe direct discovery set transfer procedure completion by the initiating UE  p. 327
8a.2.13.5Abnormal cases  p. 327
8a.2.13.5.1Abnormal cases at the initiating UE  p. 327
8a.2.13.5.2Abnormal cases at the target UE  p. 328
8b5G ProSe multi-hop UE-to-network relay  p. 328
8b.1Overview  p. 328
8b.2Procedures  p. 328
8b.2.15G ProSe multi-hop UE-to-network relay discovery over PC5 interface  p. 328
8b.2.1.1General  p. 328
8b.2.1.2Multi-hop UE-to-network relay discovery over PC5 interface with model A  p. 330
8b.2.1.2.1General  p. 330
8b.2.1.2.2Announcing multi-hop UE-to-network relay discovery  p. 330
8b.2.1.2.2.1General  p. 330
8b.2.1.2.2.2ProSe multi-hop UE-to-network relay UE procedure for multi-hop UE-to-network relay discovery initiation  p. 330
8b.2.1.2.2.3ProSe intermediate UE-to-network relay UE procedure for multi-hop UE-to-network relay discovery initiation  p. 332
8b.2.1.2.2.4Announcing UE procedure for multi-hop UE-to-network relay discovery completion  p. 335
8b.2.1.2.3Monitoring multi-hop UE-to-network relay discovery  p. 335
8b.2.1.2.3.1General  p. 335
8b.2.1.2.3.2ProSe intermediate UE-to-network relay UE procedure for multi-hop UE-to-network relay discovery monitoring  p. 335
8b.2.1.2.3.3ProSe multi-hop remote UE procedure for multi-hop UE-to-network relay discovery monitoring  p. 338
8b.2.1.2.3.4Monitoring UE procedure for multi-hop UE-to-network relay discovery completion  p. 340
8b.2.1.2.4Announcing multi-hop UE-to-network relay discovery additional information  p. 340
8b.2.1.2.4.1General  p. 340
8b.2.1.2.4.2ProSe multi-hop UE-to-network relay UE procedure  p. 341
8b.2.1.2.4.3ProSe intermediate UE-to-network relay UE procedure  p. 343
8b.2.1.2.5Monitoring multi-hop UE-to-network relay discovery additional information  p. 345
8b.2.1.2.5.1General  p. 345
8b.2.1.2.5.2ProSe intermediate UE-to-network relay UE procedure  p. 345
8b.2.1.2.5.3ProSe multi-hop remote UE procedure  p. 346
8b.2.1.3Multi-hop UE-to-network relay discovery over PC5 interface with model B  p. 347
8b.2.1.3.1General  p. 347
8b.2.1.3.2Discoverer UE procedure for multi-hop UE-to-network relay discovery  p. 347
8b.2.1.3.2.1General  p. 347
8b.2.1.3.2.2Discoverer remote UE procedure for multi-hop UE-to-network relay discovery initiation  p. 347
8b.2.1.3.2.3Discoverer intermediate UE procedure for multi-hop UE-to-network relay discovery initiation  p. 351
8b.2.1.3.2.4Discoverer UE procedure for multi-hop UE-to-network relay discovery completion  p. 355
8b.2.1.3.3Discoveree UE procedure for multi-hop UE-to-network relay discovery  p. 355
8b.2.1.3.3.1General  p. 355
8b.2.1.3.3.2Discoveree UE-to-network relay UE procedure for multi-hop UE-to-network relay discovery initiation  p. 355
8b.2.1.3.3.3Discoveree intermediate UE procedure for multi-hop UE-to-network relay discovery initiation  p. 358
8b.2.1.3.3.4Discoveree UE procedure for multi-hop UE-to-network relay discovery completion  p. 361
8b.2.25G ProSe multi-hop UE-to-network relay unicast direct communication over PC5 interface  p. 362
8b.2.2.1Overview  p. 362
8b.2.2.25G ProSe direct link establishment procedure for multi-hop UE-to-network relay  p. 362
8b.2.2.2.1General  p. 362
8b.2.2.2.25G ProSe direct link establishment procedure for multi-hop UE-to-network relay based on model A discovery  p. 362
8b.2.2.2.35G ProSe direct link establishment procedure for multi-hop UE-to-network relay based on model B discovery  p. 362
8b.2.2.35G ProSe direct link modification procedure for multi-hop UE-to-network relay  p. 363
8b.2.3Multi-hop UE-to-network relay reselection procedure  p. 364
8b.2.3.1General  p. 364
8b.2.3.2Multi-hop UE-to-network relay reselection procedure initiation  p. 365
8b.2.3.3Multi-hop UE-to-network relay reselection procedure completion  p. 366
8b.2.4Procedure for UE to use provisioned radio resources for 5G ProSe multi-hop UE-to-network discovery  p. 367
8b.2.5Multi-hop UE-to-network relay selection procedure  p. 368
8b.2.5.1General  p. 368
8b.2.5.2Multi-hop UE-to-network relay selection procedure initiation  p. 368
8b.2.5.3Multi-hop UE-to-network relay selection procedure completion  p. 368
8b.2.6QoS handling for 5G ProSe multi-hop UE-to-network relay  p. 369
8b.2.6.1General  p. 369
8b.2.6.2QoS handling for 5G ProSe multi-hop layer-3 UE-to-network relay without N3IWF  p. 369
8b.2.6.2.1General  p. 369
8b.2.6.2.2QoS flows handling initiated by the network  p. 369
8b.2.6.2.3PC5 QoS flows handling initiated by the 5G ProSe multi-hop layer-3 remote UE  p. 370
8b.2.7IP address allocation in 5G ProSe multi-hop layer-3 UE-to-network relay procedure  p. 372
8b.2.85G ProSe additional parameters announcement procedure for multi-hop UE-to-network relay  p. 373
8b.2.8.1General  p. 373
8b.2.8.25G ProSe additional parameters announcement procedure initiation by the 5G ProSe multi-hop layer-3 remote UE  p. 373
8b.2.8.35G ProSe additional parameters announcement procedure by the 5G ProSe layer-3 intermediate UE-to-network relay UE  p. 374
8b.2.8.45G ProSe additional parameters announcement procedure accepted by the 5G ProSe multi-hop layer-3 UE-to-network relay UE  p. 374
8b.2.8.55G ProSe additional parameters announcement procedure completion by the 5G ProSe multi-hop layer-3 remote UE  p. 375
8b.2.8.6Abnormal cases  p. 375
8b.2.8.6.1Abnormal cases in the 5G ProSe multi-hop layer-3 remote UE  p. 375
8b.2.8.6.2Abnormal cases in the 5G ProSe layer-3 intermediate UE-to-network relay UE  p. 375
8b.2.95G ProSe multi-hop public warning notification relay procedure  p. 375
8b.2.9.1General  p. 375
8b.2.9.25G ProSe public warning notification relay initiation procedure for 5G ProSe layer-3 multi-hop UE-to-network relay  p. 375
8b.2.9.35G ProSe public warning notification reception procedure for 5G ProSe layer-3 multi-hop UE-to-network relay  p. 376
8b.2.105G ProSe security procedures over PC8 interface  p. 377
8b.2.10.1General  p. 377
8b.2.10.1.1Transport protocol for PC8 messages  p. 377
8b.2.10.1.2Handling of UE-initiated procedures  p. 377
8b.2.10.2Procedures  p. 377
8b.2.115G ProSe security procedures over PC3a interface  p. 378
8b.2.11.1General  p. 378
8b.2.11.1.1Transport protocol for PC3a messages  p. 378
8b.2.11.1.2Handling of UE-initiated procedures  p. 378
8b.2.11.2Procedures  p. 378
8c5G ProSe multi-hop UE-to-UE relay  p. 379
8c.1Overview  p. 379
8c.2Procedures  p. 379
8c.2.15G ProSe multi-hop layer-3 UE-to-UE relay discovery over PC5 interface  p. 379
8c.2.1.1General  p. 379
8c.2.1.25G ProSe multi-hop layer-3 UE-to-UE relay discovery over PC5 interface for IP data unit type  p. 379
8c.2.1.2.1General  p. 379
8c.2.1.2.2Multi-hop layer-3 UE-to-UE relay discovery over PC5 interface with model A  p. 381
8c.2.1.2.2.1General  p. 381
8c.2.1.2.2.2Announcing UE relay discovery for multi-hop layer-3 UE-to-UE relay discovery  p. 381
8c.2.1.2.2.2.1General  p. 381
8c.2.1.2.2.2.2Announcing UE procedure for multi-hop layer-3 UE-to-UE relay discovery initiation  p. 381
8c.2.1.2.2.2.3Announcing UE procedure for multi-hop layer-3 UE-to-UE relay discovery for IP data unit type completion  p. 382
8c.2.1.2.2.3Monitoring UE relay discovery for multi-hop layer-3 UE-to-UE relay discovery for IP data unit type  p. 383
8c.2.1.2.2.3.1General  p. 383
8c.2.1.2.2.3.2Monitoring UE procedure for multi-hop layer-3 UE-to-UE relay discovery initiation for IP data unit type  p. 383
8c.2.1.2.2.3.3 Monitoring UE procedure for multi-hop layer-3 UE-to-UE relay discovery completion for IP data unit type  p. 384
8c.2.1.2.35G ProSe multi-hop layer-3 UE-to-UE relay discovery for IP data unit type with model B  p. 384
8c.2.1.2.3.1General  p. 384
8c.2.1.2.3.2Discoverer end UE procedure for 5G ProSe multi-hop layer-3 UE-to-UE relay discovery  p. 385
8c.2.1.2.3.2.1General  p. 385
8c.2.1.2.3.2.2Discoverer end UE procedure for 5G ProSe multi-hop layer-3 UE-to-UE relay discovery initiation  p. 385
8c.2.1.2.3.2.3Discoverer end UE procedure for 5G ProSe multi-hop layer-3 UE-to-UE relay discovery completion  p. 387
8c.2.1.2.3.3Void  p. …
8c.2.1.2.3.4Discoveree relay UE procedure for 5G ProSe multi-hop layer-3 UE-to-UE relay discovery  p. 387
8c.2.1.2.3.4.1General  p. 387
8c.2.1.2.3.4.2Discoveree relay UE procedure for 5G ProSe multi-hop layer-3 UE-to-UE relay discovery initiation  p. 388
8c.2.1.2.3.4.3Discoveree relay UE procedure for 5G ProSe multi-hop layer-3 UE-to-UE relay discovery completion  p. 389
8c.2.1.35G ProSe multi-hop layer-3 UE-to-UE relay discovery for Ethernet and unstructured data unit type  p. 390
8c.2.1.3.1General  p. 390
8c.2.1.3.25G ProSe multi-hop layer-3 UE-to-UE relay discovery for Ethernet and unstructured data unit type with model A  p. 390
8c.2.1.3.2.1General  p. 390
8c.2.1.3.2.2Announcing UE procedure for 5G ProSe multi-hop layer-3 UE-to-UE relay discovery  p. 390
8c.2.1.3.2.2.1General  p. 390
8c.2.1.3.2.2.2Announcing UE procedure for 5G ProSe multi-hop layer-3 UE-to-UE relay discovery initiation  p. 390
8c.2.1.3.2.2.3Announcing UE procedure for 5G ProSe multi-hop layer-3 UE-to-UE relay discovery completion  p. 391
8c.2.1.3.2.3Monitoring UE procedure for 5G ProSe multi-hop layer-3 UE-to-UE relay discovery  p. 391
8c.2.1.3.2.3.1General  p. 391
8c.2.1.3.2.3.2Monitoring UE procedure for 5G ProSe multi-hop layer-3 UE-to-UE relay discovery initiation  p. 391
8c.2.1.3.2.3.3Monitoring UE procedure for 5G ProSe multi-hop layer-3 UE-to-UE relay discovery completion  p. 392
8c.2.1.3.35G ProSe multi-hop layer-3 UE-to-UE relay discovery for Ethernet and unstructured data unit type with model B  p. 392
8c.2.1.3.3.1General  p. 392
8c.2.1.3.3.2Discoverer end UE procedure for 5G ProSe multi-hop layer-3 UE-to-UE relay discovery  p. 392
8c.2.1.3.3.2.1General  p. 392
8c.2.1.3.3.2.2Discoverer end UE procedure for 5G ProSe multi-hop layer-3 UE-to-UE relay discovery initiation  p. 392
8c.2.1.3.3.2.3Discoverer end UE procedure for 5G ProSe multi-hop layer-3 UE-to-UE relay discovery completion  p. 393
8c.2.1.3.3.3Discoverer relay UE procedure for 5G ProSe multi-hop layer-3 UE-to-UE relay discovery  p. 393
8c.2.1.3.3.4Discoveree end UE procedure for 5G ProSe multi-hop layer-3 UE-to-UE relay discovery  p. 394
8c.2.1.3.3.4.1General  p. 394
8c.2.1.3.3.4.2Discoveree end UE procedure for 5G ProSe multi-hop layer-3 UE-to-UE relay discovery initiation  p. 395
8c.2.1.3.3.4.3Discoveree end UE procedure for 5G ProSe multi-hop layer-3 UE-to-UE relay discovery completion  p. 396
8c.2.25G ProSe multi-hop UE-to-UE relay unicast direct communication over PC5 interface  p. 396
8c.2.2.1General  p. 397
8c.2.2.25G ProSe direct link management procedure for IP based 5G ProSe multi-hop layer-3 UE-to-UE relay  p. 397
8c.2.3DNS-based discovery of target 5G ProSe end UE in 5G ProSe multi-hop layer-3 UE-to-UE relay procedure for IP communication  p. 399
8c.2.4IP address allocation for 5G ProSe multi-hop layer-3 end UE in 5G ProSe multi-hop layer-3 UE-to-UE relay procedure  p. 399
8c.2.55G ProSe security procedures over PC8 interface  p. 399
8c.2.5.1General  p. 399
8c.2.5.1.1Transport protocol for PC8 messages  p. 399
8c.2.5.1.2Handling of UE-initiated procedures  p. 400
8c.2.5.2Procedures  p. 400
8c.2.65G ProSe security procedures over PC3a interface  p. 400
8c.2.6.1General  p. 400
8c.2.6.1.1Transport protocol for PC3a messages  p. 400
8c.2.6.1.2Handling of UE-initiated procedures  p. 400
8c.2.6.2Procedures  p. 400
8c.2.7QoS handling for 5G ProSe multi-hop UE-to-UE relay  p. 401
8c.2.7.1General  p. 401
8c.2.7.2QoS handling for 5G ProSe layer-3 UE-to-UE relay for Ethernet and unstructured data unit type  p. 401
8c.2.7.2.1General  p. 401
8c.2.7.2.2PC5 QoS flows handling initiated by the source ProSe multi-hop layer-3 end UE  p. 401
8c.2.8Support for Ethernet traffic via 5G ProSe multi-hop layer-3 UE-to-UE relay  p. 402
9Handling of unknown, unforeseen and erroneous protocol data  p. 403
9.1General  p. 403
9.2Handling of unknown, unforeseen and erroneous protocol data in messages sent over the PC3a or PC8 interface  p. 403
9.2.1Unforeseen message type  p. 403
9.3Handling of unknown, unforeseen and erroneous protocol data in messages sent over the PC5 interface  p. 404
9.3.0General  p. 404
9.3.1Message too short or too long  p. 404
9.3.1.1Message too short  p. 404
9.3.1.2Message too long  p. 404
9.3.2Unknown or unforeseen message type  p. 404
9.3.3Non-semantical mandatory information element errors  p. 404
9.3.4Unknown and unforeseen IEs in the non-imperative message part  p. 404
9.3.4.1IEIs unknown in the message  p. 404
9.3.4.2Out of sequence IEs  p. 404
9.3.4.3Repeated IEs  p. 405
9.3.5Non-imperative message part errors  p. 405
9.3.5.1General  p. 405
9.3.5.2Syntactically incorrect optional IEs  p. 405
9.3.5.3Conditional IE errors  p. 405
9.3.6Messages with semantically incorrect contents  p. 405
10Message functional definitions and contents  p. 405
10.1Overview  p. 405
10.25G ProSe direct discovery messages  p. 405
10.2.1Message definition  p. 405
10.2.2Relay TAI  p. 419
10.2.3NCGI  p. 419
10.2.4Target user info  p. 419
10.2.5Metadata  p. 419
10.2.6RRC container  p. 420
10.2.7Target discoveree info  p. 420
10.2.8Void  p. …
10.2.8aVoid  p. …
10.2.9UE-to-UE relay UE info  p. 420
10.2.10Status indicator  p. 420
10.2.11Announce prohibited indication  p. 421
10.2.11aDiscoveree user info  p. 421
10.2.12NID  p. 421
10.2.13Hop count  p. 421
10.2.14Hop limit  p. 421
10.2.15Root relay info  p. 421
10.2.16Multi-hop path info  p. 421
10.2.17Intermediate relays  p. 422
10.2.18Multi-hop UE-to-UE relay UE info  p. 422
10.2.19List of multi-hop UE-to-UE relay paths  p. 422
10.2.20List of multi-hop UE-to-UE relay paths  p. 422
10.2.21Accumulated QoS  p. 422
10.3PC5 signalling messages  p. 422
10.3.1ProSe direct link establishment request  p. 422
10.3.1.1Message definition  p. 422
10.3.1.2Target user info  p. 423
10.3.1.3Key establishment information container  p. 424
10.3.1.4Nonce_1  p. 424
10.3.1.5MSB of KNRP-sess ID  p. 424
10.3.1.6KNRP ID  p. 424
10.3.1.7Relay service code  p. 424
10.3.1.8ProSe identifiers  p. 424
10.3.1.9UE identity  p. 424
10.3.1.10User security key ID  p. 424
10.3.1.11HPLMN ID  p. 425
10.3.1.12UTC-based counter LSB  p. 425
10.3.1.13MIC  p. 425
10.3.1.14UE-to-UE relay UE user info  p. 425
10.3.1.15Target end UE layer-2 ID  p. 425
10.3.1.16MSB of KSLP-sess ID  p. 425
10.3.1.17KSLP ID  p. 425
10.3.1.18Relay indication  p. 425
10.3.1.19Multi-hop path info  p. 426
10.3.1.20Hop limit  p. 426
10.3.1.21End-to-end QoS flow descriptions  p. 426
10.3.2ProSe direct link establishment accept  p. 426
10.3.2.1Message definition  p. 426
10.3.2.2IP address configuration  p. 427
10.3.2.3Target link local IPv6 address  p. 427
10.3.2.4QoS flow descriptions  p. 427
10.3.2.5QoS rules  p. 427
10.3.2.6UE-to-UE relay UE user info  p. 427
10.3.2.7Target 5G ProSe layer-3 end UE MAC address  p. 427
10.3.2.8Target end UE IP address  p. 428
10.3.2.9Multi-hop path info  p. 428
10.3.3ProSe direct link establishment reject  p. 428
10.3.3.1Message definition  p. 428
10.3.3.2Back-off value  p. 428
10.3.3.3EAP message  p. 429
10.3.3.4PC5 end UE failure cause  p. 429
10.3.3.5Source end UE info  p. 429
10.3.3.6Target end UE info  p. 429
10.3.3.7UE-to-UE relay UE user info  p. 429
10.3.4ProSe direct link release request  p. 429
10.3.4.1Message definition  p. 429
10.3.4.2Back-off value  p. 430
10.3.4.3PC5 end UE release cause  p. 430
10.3.5ProSe direct link release accept  p. 430
10.3.5.1Message definition  p. 430
10.3.6ProSe direct link modification request  p. 430
10.3.6.1Message definition  p. 430
10.3.6.2QoS rules  p. 431
10.3.6.3Source end UE info  p. 431
10.3.6.4Target end UE info  p. 432
10.3.6.5Target end UE layer-2 ID  p. 432
10.3.6.6Void  p. …
10.3.6.7Source 5G ProSe layer-3 end UE MAC address  p. 433
10.3.6.8Relay reselection indication  p. 433
10.3.6.9List of candidates U2U relay UE info  p. 433
10.3.6.10List of target end UE IP addresses  p. 433
10.3.6.11List of candidates U2U relay UE layer-2 IDs  p. 433
10.3.6.12Source end UE IP address  p. 433
10.3.6.13New MSBs of KNRP ID  p. 433
10.3.6.14List of multi-hop remote UE parameters  p. 433
10.3.6.15Child UEs multi-hop user info  p. 433
10.3.6.16End-to-end QoS flow descriptions  p. 433
10.3.6.17Multi-hop path info  p. 434
10.3.7ProSe direct link modification accept  p. 434
10.3.7.1Message definition  p. 434
10.3.7.2QoS flow descriptions  p. 435
10.3.7.3QoS rules  p. 435
10.3.7.4Source end UE info  p. 435
10.3.7.5Target end UE info  p. 435
10.3.7.6Target 5G ProSe layer-3 end UE MAC address  p. 436
10.3.7.7Relay reselection indication  p. 436
10.3.7.8New 5G ProSe UE-to-UE relay UE info  p. 436
10.3.7.9Source end UE IP address  p. 436
10.3.7.10Target end UE IP address  p. 436
10.3.7.11Target end UE IP address for new relay  p. 437
10.3.7.12New LSBs of KNRP ID  p. 437
10.3.7.13End-to-end QoS flow descriptions  p. 437
10.3.7.14Multi-hop path info  p. 437
10.3.7aProSe direct link modification ack  p. 437
10.3.7a.1Message definition  p. 437
10.3.7a.2Source end UE IP address  p. 438
10.3.7a.3Target end UE IP address  p. 438
10.3.7a.4New LSBs of KNRP ID  p. 438
10.3.8ProSe direct link keepalive request  p. 438
10.3.8.1Message definition  p. 438
10.3.8.2Maximum inactivity period  p. 439
10.3.9ProSe direct link keepalive response  p. 439
10.3.9.1Message definition  p. 439
10.3.10ProSe direct link authentication request  p. 439
10.3.10.1Message definition  p. 439
10.3.11ProSe direct link authentication response  p. 439
10.3.11.1Message definition  p. 439
10.3.12ProSe direct link authentication reject  p. 440
10.3.12.1Message definition  p. 440
10.3.13ProSe direct link security mode command  p. 440
10.3.13.1Message definition  p. 440
10.3.13.2Nonce_2  p. 441
10.3.13.3LSB of KNRP-sess ID  p. 441
10.3.13.4Key establishment information container  p. 441
10.3.13.5MSBs of KNRP ID  p. 441
10.3.13.6UE PC5 unicast signalling security policy  p. 441
10.3.13.7GPI  p. 442
10.3.13.8EAP message  p. 442
10.3.14ProSe direct link security mode complete  p. 442
10.3.14.1Message definition  p. 442
10.3.14.2IP address configuration  p. 442
10.3.14.3Target link local IPv6 address  p. 442
10.3.14.4LSBs of KNRP ID  p. 443
10.3.14.5QoS rules  p. 443
10.3.14.6QoS flow descriptions  p. 443
10.3.14.7Source 5G ProSe layer-3 end UE MAC address  p. 443
10.3.15ProSe direct link security mode reject  p. 443
10.3.15.1Message definition  p. 443
10.3.15.2RAND  p. 443
10.3.15.3AUTS  p. 444
10.3.16ProSe direct link rekeying request  p. 444
10.3.16.1Message definition  p. 444
10.3.16.2Key establishment information container  p. 444
10.3.16.3Nonce_1  p. 444
10.3.16.4MSB of KNRP-sess ID  p. 444
10.3.16.5Re-authentication indication  p. 445
10.3.16.6User security key ID  p. 445
10.3.16.7HPLMN ID  p. 445
10.3.17ProSe direct link rekeying response  p. 445
10.3.17.1Message definition  p. 445
10.3.18ProSe direct link identifier update request  p. 445
10.3.18.1Message definition  p. 445
10.3.18.2Source user info  p. 446
10.3.18.3Source link local IPv6 address  p. 446
10.3.18.4IP address/prefix needed indication  p. 446
10.3.18.5Void  p. …
10.3.18.6List of target End UE user info  p. 446
10.3.18.7List of target end UE IP addresses  p. 446
10.3.18.8Source end UE IP address  p. 446
10.3.18.9List of source end UE IP addresses  p. 447
10.3.18.10Hop limit  p. 447
10.3.19ProSe direct link identifier update accept  p. 447
10.3.19.1Message definition  p. 447
10.3.19.2Target user info  p. 447
10.3.19.3Target link local IPv6 address  p. 447
10.3.19.4Source user info  p. 448
10.3.19.5Source link local IPv6 address  p. 448
10.3.20ProSe direct link identifier update ack  p. 448
10.3.20.1Message definition  p. 448
10.3.20.2Target user info  p. 448
10.3.20.3Target link local IPv6 address  p. 448
10.3.20.4Source end UE IP address  p. 449
10.3.21ProSe direct link identifier update reject  p. 449
10.3.21.1Message definition  p. 449
10.3.22ProSe direct link modification reject  p. 449
10.3.22.1Message definition  p. 449
10.3.22.2PC5 end UE failure cause  p. 450
10.3.22.3Source end UE info  p. 450
10.3.22.4Target end UE info  p. 450
10.3.23ProSe direct link authentication failure  p. 450
10.3.23.1Message definition  p. 450
10.3.23.2Key establishment information container  p. 450
10.3.24ProSe additional parameters announcement request  p. 450
10.3.24.1Message definition  p. 450
10.3.25ProSe additional parameters announcement response  p. 451
10.3.25.1Message definition  p. 451
10.3.26ProSe AA message transport request  p. 451
10.3.26.1Message definition  p. 451
10.3.26.2EAP message  p. 452
10.3.27ProSe AA message transport response  p. 452
10.3.27.1Message definition  p. 452
10.3.27.2EAP message  p. 452
10.3.28ProSe UE to UE relay update request  p. 452
10.3.28.1Message definition  p. 452
10.3.28.2Old source end UE IP address  p. 453
10.3.28.3 New source end UE IP address  p. 453
10.3.28.4 Old source end UE user info  p. 453
10.3.28.5 New source end UE user info  p. 453
10.3.28.6Old Source end UE user info  p. 453
10.3.28.7New Source end UE user info  p. 453
10.3.29ProSe UE to UE relay update accept  p. 453
10.3.29.1Message definition  p. 453
10.3.29.2Old source end UE IP address  p. 454
10.3.29.3 New source end UE IP address  p. 454
10.3.29.4 Old source end UE user info  p. 454
10.3.29.5 New source end UE user info  p. 454
10.3.29.6Old Source end UE user info  p. 454
10.3.29.7New Source end UE user info  p. 454
10.3.30ProSe path switching request  p. 455
10.3.30.1Message definition  p. 455
10.3.30.2Uu QoS flow descriptions  p. 455
10.3.31ProSe path switching accept  p. 455
10.3.31.1Message definition  p. 455
10.3.32ProSe path switching reject  p. 455
10.3.32.1Message definition  p. 455
10.3.33ProSe UE to UE relay update reject  p. 456
10.3.33.1Message definition  p. 456
10.3.34ProSe direct link identity request  p. 456
10.3.34.1Message definition  p. 456
10.3.35ProSe direct link identity response  p. 457
10.3.35.1Message definition  p. 457
10.3.36ProSe direct link security establishment accept  p. 457
10.3.36.1Message definition  p. 457
10.3.36.2IP address configuration  p. 458
10.3.36.3Target link local IPv6 address  p. 458
10.3.36.4QoS flow descriptions  p. 458
10.3.36.5QoS rules  p. 458
10.3.36.6Source 5G ProSe layer-3 end UE MAC address  p. 458
10.3.37ProSe direct link security establishment request  p. 458
10.3.37.1Message definition  p. 458
10.3.37.2MSB of KNRP-sess ID  p. 459
10.3.37.3UE identity  p. 459
10.3.37.4User security key ID  p. 459
10.3.37.5HPLMN ID  p. 459
10.3.37.6MIC  p. 459
10.3.38ProSe direct link security establishment reject  p. 460
10.3.38.1Message definition  p. 460
10.3.39ProSe direct discovery set transfer ind  p. 460
10.3.39.1Message definition  p. 460
10.3.40ProSe direct discovery set transfer ack  p. 460
10.3.40.1Message definition  p. 460
10.4Provisioning of 5G ProSe configuration information signalling messages  p. 461
10.4.1UE policy provisioning request  p. 461
10.4.2UE policy provisioning reject  p. 461
10.55G ProSe discovery and security messages over PC3a  p. 461
10.5.1General  p. 461
10.5.2application/vnd.3gpp-prose-pc3a+xml  p. 461
10.5.3XML schema  p. 462
10.5.4Semantics  p. 473
10.5.4.1General  p. 473
10.5.4.2Semantics of <DISCOVERY_REQUEST>  p. 473
10.5.4.3Semantics of <DISCOVERY_RESPONSE>  p. 475
10.5.4.4Semantics of <MATCH_REPORT>  p. 477
10.5.4.5Semantics of <MATCH_REPORT_ACK>  p. 478
10.5.4.6Semantics of < DISCOVERY_UPDATE_REQUEST>  p. 479
10.5.4.7Semantics of < DISCOVERY_UPDATE_RESPONSE>  p. 480
10.5.4.8Semantics of <ANNOUNCING_ALERT_REQUEST>  p. 480
10.5.4.9Semantics of < ANNOUNCING_ALERT_RESPONSE >  p. 480
10.5.4.10Semantics of <PROSE_5GPKMF_ADDRESS_REQUEST>  p. 481
10.5.4.11Semantics of <PROSE_5GPKMF_ADDRESS_RESPONSE>  p. 481
10.5.4.12Semantics of <PROSE_SECURITY_MATERIAL_REQUEST>  p. 482
10.5.4.13Semantics of <PROSE_SECURITY_MATERIAL_RESPONSE>  p. 482
10.65G ProSe security messages over PC8  p. 482
10.6.1General  p. 482
10.6.2application/vnd.3gpp-prose-pc8+xml  p. 482
10.6.3XML schema  p. 482
10.6.4Semantics  p. 487
10.6.4.1General  p. 487
10.6.4.2Semantics of <PROSE_SECURITY_PARAM_REQUEST> element  p. 488
10.6.4.3Semantics of <PROSE_SECURITY_PARAM_RESPONSE> element  p. 489
10.6.4.4Semantics of <PROSE_PRUK_REQUEST> element  p. 492
10.6.4.5Semantics of <PROSE_PRUK_RESPONSE> element  p. 492
10.6.4.6Semantics of <PROSE_KEY_REQUEST> element  p. 493
10.6.4.7Semantics of <PROSE_KEY_RESPONSE> element  p. 493
10.7Messages transmitted over the PC3ach interface  p. 494
10.7.1General  p. 494
10.7.2application/vnd.3gpp-prose-pc3ach+xml  p. 494
10.7.3XML Schema  p. 494
10.7.4Semantics  p. 498
10.7.4.1General  p. 498
10.7.4.2Semantics of <PROSE_USAGE_INFORMATION_REPORT_LIST>  p. 498
10.7.4.3Semantics of <PROSE_USAGE_INFORMATION_REPORT_LIST_RESPONSE>  p. 504
10.8MANET Messages for 5G ProSe Multi-hop UE-to-UE relay  p. 504
10.8.1General  p. 504
10.8.25G ProSe MANET discovery info message  p. 505
10.8.2.1Message definition  p. 505
10.95G ProSe broadcasting messages  p. 505
10.9.1Message definition  p. 505
11Information elements coding  p. 505
11.1Overview  p. 505
11.25G ProSe direct discovery message formats  p. 506
11.2.1ProSe direct discovery PC5 message type  p. 506
11.2.1aProSe direct discovery PC5 message content type extensions  p. 507
11.2.2ProSe application code  p. 508
11.2.3ProSe restricted code  p. 508
11.2.4MIC  p. 509
11.2.5UTC-based counter  p. 509
11.2.6Application layer group ID  p. 509
11.2.7User info ID  p. 509
11.2.8Relay service code  p. 510
11.2.9Status indicator  p. 510
11.2.10TAI  p. 511
11.2.11UTC-based counter LSB  p. 511
11.2.12NCGI  p. 511
11.2.13Metadata  p. 512
11.2.14RRC container  p. 512
11.2.15Application layer ID  p. 513
11.2.16Void  p. …
11.2.17Direct discovery set  p. 513
11.2.18Void  p. …
11.2.19Announce prohibited indication  p. 515
11.2.20PLMN ID  p. 515
11.2.21Hop count  p. 515
11.2.22Hop limit  p. 516
11.2.23NID  p. 516
11.2.24List of multi-hop UE-to-UE relay paths  p. 516
11.2.25NCGI info set  p. 518
11.3PC5 signalling message formats  p. 518
11.3.1ProSe PC5 signalling message type  p. 518
11.3.2Sequence number  p. 519
11.3.3ProSe identifier  p. 519
11.3.4Application layer ID  p. 520
11.3.5PC5 QoS flow descriptions  p. 521
11.3.6IP address configuration  p. 528
11.3.7Link local IPv6 address  p. 529
11.3.8PC5 signalling protocol cause  p. 529
11.3.9Key establishment information container  p. 530
11.3.10Nonce  p. 531
11.3.11UE security capabilities  p. 531
11.3.12UE PC5 unicast signalling security policy  p. 534
11.3.13MSB of KNRP-sess ID  p. 534
11.3.14KNRP ID  p. 535
11.3.15LSB of KNRP-sess ID  p. 535
11.3.16MSBs of KNRP ID  p. 536
11.3.17LSBs of KNRP ID  p. 536
11.3.18Configuration of UE PC5 unicast user plane security protection  p. 536
11.3.19Link modification operation code  p. 537
11.3.20Keep-alive counter  p. 538
11.3.21Maximum inactivity period  p. 538
11.3.22Selected security algorithms  p. 539
11.3.23UE PC5 unicast user plane security policy  p. 539
11.3.24Re-authentication indication  p. 540
11.3.25Layer-2 ID  p. 541
11.3.26Relay service code  p. 541
11.3.27GPRS timer  p. 542
11.3.28Additional parameters announcement request refresh timer T5106  p. 542
11.3.29PC5 QoS rules  p. 542
11.3.305GS mobile identity  p. 550
11.3.31EAP message  p. 550
11.3.32User security key ID  p. 550
11.3.33PLMN ID  p. 551
11.3.34Void  p. …
11.3.35GPI  p. 551
11.3.36RAND  p. 552
11.3.37AUTS  p. 552
11.3.38MIC  p. 553
11.3.39User info ID 2  p. 553
11.3.40QoS flow descriptions  p. 553
11.3.41PC5 signalling protocol cause 2  p. 553
11.3.42IP address/prefix needed indication  p. 554
11.3.43Void  p. …
11.3.44List of Link local IPv6 address  p. 554
11.3.45MAC address  p. 555
11.3.46Relay reselection indication  p. 555
11.3.47List of user info ID  p. 556
11.3.48List of candidates U2U relay UE layer-2 IDs  p. 556
11.3.49UE IP address  p. 557
11.3.50List of UE IP addresses  p. 558
11.3.50A5GS identity type  p. 558
11.3.51Spare half octet  p. 558
11.3.52MSBs of KNRP ID 2  p. 559
11.3.53LSBs of KNRP ID 2  p. 559
11.3.54MSB of KSLP-sess ID  p. 559
11.3.55KSLP ID  p. 560
11.3.56Relay indication  p. 560
11.3.57List of application layer IDs  p. 561
11.3.58List of multi-hop remote UE parameters  p. 561
11.3.59Hop limit  p. 562
11.45G ProSe direct discovery message over PC3a formats  p. 563
11.4.1Data types format in XML schema  p. 563
11.4.2Parameters in 5G ProSe direct discovery messages over PC3a  p. 563
11.4.2.1Transaction ID  p. 563
11.4.2.2Command  p. 563
11.4.2.3Void  p. …
11.4.2.4Prose application ID  p. 564
11.4.2.5Application identity  p. 564
11.4.2.6ProSe application code  p. 564
11.4.2.7Validity timer T5060  p. 564
11.4.2.8PC3a control protocol cause value  p. 564
11.4.2.9Discovery filter  p. 565
11.4.2.10Monitored PLMN ID  p. 565
11.4.2.11VPLMN ID  p. 565
11.4.2.12UTC-based counter  p. 565
11.4.2.13Validity timer T5072  p. 566
11.4.2.14Metadata flag  p. 566
11.4.2.15Metadata  p. 566
11.4.2.16Current time  p. 566
11.4.2.17Max offset  p. 566
11.4.2.18Discovery type  p. 566
11.4.2.19Match report refresh timer T5074  p. 566
11.4.2.20Requested timer  p. 566
11.4.2.21DDNMF transaction ID  p. 567
11.4.2.22Update info  p. 567
11.4.2.23RPAUID  p. 567
11.4.2.24Announcing type  p. 567
11.4.2.25Application level container  p. 568
11.4.2.26Discovery entry ID  p. 568
11.4.2.27ProSe restricted code  p. 568
11.4.2.28ProSe restricted code suffix range  p. 568
11.4.2.29On demand announcing enabled indicator  p. 568
11.4.2.30Restricted discovery filter  p. 568
11.4.2.31ACE enabled indicator  p. 569
11.4.2.32Validity timer T5062  p. 569
11.4.2.33Restricted code security material  p. 569
11.4.2.34Discovery model  p. 570
11.4.2.35ProSe response code  p. 570
11.4.2.36Discovery query filter  p. 570
11.4.2.37Validity timer T5068  p. 570
11.4.2.38Subquery result  p. 570
11.4.2.39Validity timer T5076  p. 571
11.4.2.40Match report refresh timer T5077  p. 571
11.4.2.41Metadata index mask  p. 571
11.4.2.42Network-initiated transaction method  p. 571
11.4.2.43Announcing PLMN ID  p. 571
11.4.2.44Metadata Indicator  p. 571
11.4.2.45ProSe application code prefix  p. 571
11.4.2.46ProSe application code suffix  p. 572
11.4.2.47ProSe application code ACE  p. 572
11.4.2.48Discovery key  p. 572
11.4.2.49PC5 security policies  p. 572
11.4.2.50PC5 UE ciphering algorithm capability  p. 572
11.4.2.51Selected PC5 ciphering algorithm  p. 572
11.4.2.52ProSe PC5 discovery message  p. 572
11.4.2.53PKMF address  p. 572
11.5Void  p. …
11.65G ProSe security message over PC8 formats  p. 574
11.6.1Data types format in XML schema  p. 574
11.6.2Parameters in 5G ProSe security messages over PC8  p. 575
11.6.2.1Transaction ID  p. 575
11.6.2.2UP-PRUK  p. 575
11.6.2.3UP-PRUK ID  p. 575
11.6.2.4PC5 UE security capabilities  p. 575
11.6.2.5MCC  p. 575
11.6.2.6MNC  p. 575
11.6.2.7Current time  p. 575
11.6.2.8Max offset  p. 576
11.6.2.9Expiration timer  p. 576
11.6.2.10Relay service code  p. 576
11.6.2.11Selected PC5 ciphering algorithm  p. 576
11.6.2.12DUSK  p. 576
11.6.2.13DUIK  p. 576
11.6.2.14DUCK  p. 576
11.6.2.15Encrypted bitmask  p. 576
11.6.2.16GPI  p. 576
11.6.2.17Signalling ciphering policy  p. 576
11.6.2.18User plane integrity protection policy  p. 576
11.6.2.19User plane ciphering policy  p. 576
11.6.2.20PC8 control protocol cause value  p. 577
11.6.2.21SUCI  p. 577
11.6.2.22KNRP freshness parameter 1  p. 577
11.6.2.23AUTS  p. 577
11.6.2.24RAND  p. 577
11.6.2.25KNRP  p. 577
11.6.2.26KNRP freshness parameter 2  p. 577
11.6.2.27PLMN ID  p. 577
11.7Formats for messages transmitted over the PC3ach interface  p. 577
11.7.1Data types format in XML schema  p. 577
11.7.2Parameters in messages transmitted over the PC3ach interface  p. 578
11.7.2.1Transaction ID  p. 578
11.7.2.2Sequence number  p. 578
11.7.2.3In coverage  p. 578
11.7.2.4NCGI  p. 578
11.7.2.55G ProSe direct communication radio parameters  p. 578
11.7.2.6Cause value  p. 578
11.7.2.7Timestamp  p. 579
11.7.2.8ProSe layer-2 group ID  p. 579
11.7.2.95G ProSe group IP multicast address  p. 579
11.7.2.10UE IP address  p. 579
11.7.2.11UE layer-2 ID  p. 579
11.7.2.12Data amount  p. 579
11.7.2.13Radio resources indicator  p. 579
11.7.2.14Radio frequency  p. 579
11.7.2.15PC5 QoS flow identifier  p. 579
11.7.2.16PQI  p. 580
11.7.2.17GFBR  p. 580
11.7.2.18MFBR  p. 580
11.7.2.19Averaging window  p. 580
11.7.2.20Resource type  p. 580
11.7.2.21Default priority level  p. 580
11.7.2.22Packet delay budget  p. 580
11.7.2.23Packet error rate  p. 580
11.7.2.24Default maximum data burst volume  p. 580
11.8Parameter formats for 5G ProSe MANET messages  p. 580
11.8.1Multi-hop UE-to-UE discovery info  p. 580
11.95G ProSe broadcasting message formats  p. 582
11.9.1ProSe broadcasting message type  p. 582
12List of system parameters  p. 583
12.1Overview  p. 583
12.2Timers for provisioning of parameters for 5G ProSe configuration procedures  p. 583
12.3Timers for 5G ProSe direct link management procedures  p. 588
12.4Timers for 5G ProSe direct discovery procedures over PC3a  p. 593
12.5Timers for broadcast mode 5G ProSe communication over PC5 interface  p. 601
12.6Timers for groupcast mode 5G ProSe communication over PC5 interface  p. 602
12.7Timers for 5G ProSe additional parameters announcement procedure  p. 602
12.8Timers for PC8 interface  p. 603
12.9Timers for 5G ProSe UE-to-network relay with model B  p. 604
12.10Timers for 5G ProSe UE-to-network relay discovery security material request procedure over PC3a interface  p. 605
12.11Timers for 5G ProSe UE-to-UE relay discovery with model B  p. 606
12.12Timers for 5G ProSe UE-to-UE relay discovery security material request procedure over PC3a interface  p. 607
12.13Timers for 5G ProSe multi-hop layer-3 UE-to-UE relay discovery with model B  p. 607
AIANA registrations  p. 608
A.1IANA registrations for MIME types  p. 608
A.1.1General  p. 608
A.1.2application/vnd.3gpp-prose-pc3a+xml  p. 608
A.1.2Aapplication/vnd.3gpp-prose-pc8+xml  p. 609
A.1.3application/vnd.3gpp-prose-pc3ach+xml  p. 611
$Change history  p. 613

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