ETSI TS 104 023 V12.0.1 (2024-05)

Publicly Available Specification (PAS); O-RAN Fronthaul Management Plane Specification v12.01; (O-RAN.WG4.MP.0-R003-v12.01)

DTS/MSG-001143

General Information

• Status: Not Published
• Technical Committee: MSG - Mobile Standards Group
• Current Stage: 12 - Citation in the OJ (auto-insert)
• Due Date: 07-May-2024
• Completion Date: 06-May-2024

Standards Content (Sample)

ETSI TS 104 023 V12.01 (2024-05)

TECHNICAL SPECIFICATION
Publicly Available Specification (PAS);
O-RAN Fronthaul Management Plane
Specification v12.01;
(O-RAN.WG4.MP.0-R003-v12.01)
CAUTION
The present document has been submitted to ETSI as a PAS produced by O-RAN Alliance and
approved by the ETSI Technical Committee Mobile Standards Group (MSG).
ETSI had been assigned all the relevant copyrights related to the document O-RAN.WG4.MP.0-R003-v12.01 on an "as is
basis". Consequently, to the fullest extent permitted by law, ETSI disclaims all warranties whether express, implied, statutory or
otherwise including but not limited to merchantability, non-infringement of any intellectual property rights of third parties. No
warranty is given about the accuracy and the completeness of the content of the present document.

2 ETSI TS 104 023 V12.01 (2024-05)

Reference
DTS/MSG-001143
Keywords
fronthaul, management plane, PAS
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© ETSI 2024.
All rights reserved.
ETSI
3 ETSI TS 104 023 V12.01 (2024-05)
Contents
Contents . 3
Intellectual Property Rights . 10
Foreword . 10
Modal verbs terminology . 10
Executive summary . 10
1 Scope . 11
2 References . 11
2.1 Normative references . 11
2.2 Informative references . 14
3 Definition of terms, symbols and abbreviations . 14
3.1 Terms . 14
3.2 Abbreviations . 16
4 General . 17
4.1 Conventions . 17
4.2 Void . 17
4.3 Revision and compatibility handling . 17
4.4 Namespace compatibility handling . 18
5 High level description . 18
5.1 Top level functional description, terminology, including hybrid, hierarchical . 18
5.1.1 Architecture for O-RAN WG4 fronthaul functional split . 18
5.1.2 M-Plane architecture model . 19
5.1.3 Transport network . 20
5.1.4 M-Plane functional description . 20
5.2 Interfaces . 21
5.3 YANG module introduction . 22
5.4 Security . 22
6 "Start-up" installation . 24
6.1 General . 24
6.2 Management plane transport aspects . 27
6.2.1 Transport establishment . 27
6.2.2 O-RU identification in DHCP . 30
6.2.3 Management plane VLAN discovery aspects . 31
6.2.4 O-RU management plane IP address assignment . 31
6.2.5 O-RU controller discovery . 32
6.2.6 Certificate handling. 33
6.2.6.0 Trust anchor provisioning . 33
6.2.6.1 Certificate enrolment . 34
6.2.6.2 CMPv2 based certificate enrolment . 34
6.2.6.3 Operation with vendor-signed certificates . 35
6.2.7 Event-Collector discovery . 35
6.3 NETCONF call home to O-RU controller(s). 36
6.4 NETCONF connection establishment . 39
6.4.0 General . 39
6.4.1 NETCONF security . 39
6.4.2 NETCONF authentication . 39
6.4.3 User account provisioning . 40
6.4.3.1 General . 40
6.4.3.2 Certificates to NETCONF usernames mapping list provisioning . 41
6.5 NETCONF access control . 41
6.6 NETCONF capability discovery . 43
6.7 Monitoring NETCONF connectivity . 44
6.8 Closing a NETCONF session . 47
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4 ETSI TS 104 023 V12.01 (2024-05)
6.9 PNF registration . 47
6.9.1 Introduction. 47
6.9.2 PNF registration procedure . 47
6.9.3 Encoding of PNF registration notification . 48
7 O-RU to O-DU interface management . 49
7.1 O-RU interfaces . 49
7.2 Transceiver . 50
7.3 C/U-Plane VLAN configuration . 50
7.4 O-RU C/U-Plane IP address assignment . 50
7.5 Definition of processing elements . 51
7.6 O-DU verification of C/U-Plane transport connectivity . 52
7.6.1 C/U-Plane transport connectivity verification . 52
7.6.2 Ethernet connectivity monitoring procedure . 53
7.6.2.1 Transport connectivity verification monitoring Procedure . 53
7.6.2.2 Validating the transport configuration . 53
7.6.2.3 Monitor network connectivity . 53
7.6.2.4 Managing ethernet connectivity monitoring procedure. 54
7.6.3 IP connectivity monitoring procedure. 54
7.6.3.1 Monitoring procedure. 54
7.6.3.2 Managing IP connectivity monitoring procedure . 54
7.7 C/U-Plane delay management . 54
7.7.1 Introduction. 54
7.7.2 Delay parameters . 54
7.7.3 Reception window monitoring . 55
7.7.4 External antenna delay control . 55
7.8 O-RU adaptive delay capability . 56
7.9 Measuring transport delay parameters . 56
7.10 O-RU monitoring of C/U-Plane connectivity . 57
7.11 Bandwidth management . 57
7.12 IEEE 802.1X port based access control . 57
7.12.1 Configuring port based access control . 57
7.12.2 EAP authentication . 58
7.12.3 Certificate time validation . 58
8 Software management . 59
8.1 General . 59
8.1.1 Introduction. 59
8.1.2 Software slots. 59
8.1.3 Software management procedures . 59
8.2 Software build . 59
8.3 Software package . 60
8.3.1 Software package name . 60
8.3.2 File server storage of software package . 60
8.3.3 Software package content and manifest.xml file . 60
8.4 Software inventory . 61
8.5 Download . 63
8.6 Install . 65
8.7 Bringing software into operation . 67
8.7.1 Procedure . 67
8.7.2 Software activation . 67
8.7.3 Reset . 69
8.8 Software update scenario . 69
8.9 Factory reset . 70
9 Configuration management . 70
9.1 Baseline configuration . 70
9.1.1 NETCONF operations . 70
9.1.2 Retrieve state . 70
9.1.3 Modify state . 71
9.1.4 Retrieve parameters . 74
9.1.5 Modify parameters . 75
9.1.6 Deleting parameters . 76
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5 ETSI TS 104 023 V12.01 (2024-05)
9.1.7 Notification framework . 78
9.1.7.1 General . 78
9.1.7.2 Event streams . 78
9.1.7.3 . Event stream discovery and
subscription . 78
9.2 Framework for optional feature handling . 78
9.3 M-Plane operational state . 79
9.4 Notification of updates to configuration datastore . 79
9.4.1 Introduction. 79
9.4.2 Subscribing to updates from an O-RU . 79
9.5 Resetting O-RU . 80
9.5.1 O-RU reset procedure . 80
9.5.2 O-RU controller triggered O-RU reset operation . 80
9.5.3 O-RU controller triggered O-RU reset procedure . 80
10 Performance management . 81
10.1 General . 81
10.2 Measurement activation and de-activation . 81
10.3 Collection and reporting of measurement result . 82
10.3.0 Introduction. 82
10.3.1 NETCONF process for dynamic subscriptions . 83
10.3.2 File management process . 84
10.3.3 Configured subscription process . 86
11 Fault management . 87
11.1 Introduction . 87
11.2 Alarm notification . 87
11.3 Manage alarms request to NETCONF clients . 88
11.4 Fault sources . 90
11.5 Manage alarms request to event-collector . 91
11.6 Historical Alarms List . 91
12 File management . 91
12.1 Introduction . 91
12.2 File system structure . 92
12.3 File management operation: upload . 93
12.4 File management operation: retrieve file list . 94
12.5 File management operation: download . 95
13 Synchronization aspects . 96
13.1 Introduction . 96
13.2 Sync status object . 97
13.3 Sync capability object . 98
13.4 PTP configuration. 99
13.4.1 Introduction. 99
13.4.2 G.8275.1 specific parameters . 100
13.4.3 G.8275.2 specific parameters . 100
13.5 PTP status . 100
13.6 PLFS/SyncE configuration . 101
13.7 PLFS/SyncE status . 101
13.8 GNSS configuration . 102
13.9 GNSS status. 103
14 Operations use cases . 103
14.1 Supervision failure handling and supervision termination handling . 103
14.1.1 Supervision failure handling . 103
14.1.2 Supervision termination handling . 104
14.2 Log management . 104
14.2.1 Introduction. 104
14.2.2 Troubleshooting log management . 105
14.3 Trace . 109
14.4 Operational aspects of antenna line devices . 111
14.4.1 Introduction. 111
14.4.2 HDLC interworking . 111
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6 ETSI TS 104 023 V12.01 (2024-05)
14.4.3 ALD operations . 112
14.5 Operational aspects of external IO . 114
14.5.1 Introduction. 114
14.5.2 External input . 114
14.5.3 External output . 115
14.6 O-RU connectors . 117
14.6.1 Introduction to O-RU connectors . 117
14.6.2 Connectors related to antennas and antenna arrays . 117
14.6.2.1 Antenna connectors . 117
14.6.2.2 . Distinguishable types of antenna
connectors . 117
14.6.2.2.1 Feeder . 117
14.6.2.2.2 Beamforming calibration . 118
15 Details of O-RU operations . 118
15.1 Retrieval of O-RU information . 118
15.2 User plane message routing . 119
15.2.1 Introduction. 119
15.2.2 Configurable format for eAxC_ID . 119
15.2.3 U-Plane endpoint addressing . 120
15.2.4 General configuration scenario . 120
15.3 Carrier configuration . 123
15.3.1 Carrier creation . 123
15.3.2 Activation, deactivation and sleep . 124
15.3.3 Carrier state’s relationship to synchronisation state . 125
15.3.3.1 Synchronisation state and carrier state transitions. 125
15.3.3.2 Synchronization lost and HOLDOVER mode expired . 126
15.3.3.3 External timing source restored. 127
15.4 Beamforming . 130
15.4.1 Beamforming configuration . 130
15.4.2 Pre-defined beamforming configuration . 130
15.4.3 Beamforming configuration update . 130
15.4.4 Tilting pre-defined beams . 134
15.4.5 Dynamic beamforming control option . 136
15.5 Antenna calibration . 136
15.5.1 Background . 136
15.5.2 Overall operation . 137
15.5.2.1 General . 137
15.5.2.2 Initiation . 137
15.5.2.3 Self-calibration operation . 138
15.5.2.4 Calibration completion . 138
15.5.2.5 Antenna calibration procedure . 138
15.5.3 O-RU antenna calibration capability parameter configuration . 140
15.5.4 antenna-calibration-required notification parameters . 140
15.5.5 Start-antenna-calibration RPC request parameters . 141
15.5.6 Example antenna calibration operation . 141
15.5.7 Calibration with multiple timing resource sets . 144
15.5.8 antenna-calibration-multiple-time-resource-params notification parameters . 144
15.6 Static configuration for PRACH and SRS . 145
15.6.1 Background . 145
15.6.2 Static configuration for PRACH processing . 145
15.6.3 Frequency domain configuration . 145
15.6.4 Time domain configuration. 146
15.6.5 Operation . 147
15.6.6 Static configuration for raw SRS processing . 148
15.6.7 Operation . 149
15.7 TDD pattern configuration . 149
15.8 C-Plane message limits . 150
15.9 Advanced endpoint capability report . 150
15.10 U-Plane message limits . 155
16 Licensed assisted access . 155
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7 ETSI TS 104 023 V12.01 (2024-05)
16.1 Introduction: . 155
16.2 LAA-initiation process . 156
16.2.1 LAA module capabilities . 156
16.2.2 LAA O-RU parameter configuration . 157
16.3 Carrier selection . 158
16.3.1 LAA measurements . 158
16.3.2 LAA carrier frequency configuration . 158
17 Shared cell . 158
17.1 Introduction . 158
17.2 Architecture . 159
17.3 Start-up and Installation . 160
17.4 Performance management . 164
17.5 Delay management . 165
17.6 Details of O-RU operations for shared cell . 166
17.6.1 O-RU information for shared cell . 166
17.6.2 Topology discovery procedure . 168
17.6.3 Shared cell configuration . 169
17.6.4 U-plane configuration for FHM mode . 173
17.6.5 Support of selective transmission and reception function . 173
17.7 Cascade-FHM mode . 174
17.7.1 Background . 174
17.7.2 Shared cell configuration on cascaded FHMs .
...