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TS 38.473RAN3
NG-RAN — F1 interface –
F1 Application Protocol (F1AP)

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V16.0.0 (Wzip)2019/12  239 p.
V15.8.0 (PDF)2019/12  224 p.

Rapporteur:  Mr. Olofsson, Henrik

The present document specifies the 5G radio network layer signalling protocol for the F1 interface. The F1 interface provides means for interconnecting a gNB‑CU and a gNB‑DU of a gNB within an NG‑RAN, or for interconnecting a gNB‑CU and a gNB‑DU of an en‑gNB within an E‑UTRAN. The F1 Application Protocol (F1AP) supports the functions of F1 interface by signalling procedures defined in this document. F1AP is developed in accordance to the general principles stated in TS 38.401 and TS 38.470.

full Table of Contents for  TS 38.473  Word version:   16.0.0

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1  ScopeWord-p. 10
2  References
3  Definitions and abbreviationsWord-p. 11
4  General
5  F1AP services
6  Services expected from signalling transportWord-p. 14
7  Functions of F1AP
8  F1AP procedures
8.1  List of F1AP Elementary procedures
8.2  Interface Management proceduresWord-p. 15
8.3  UE Context Management procedures
8.4  RRC Message Transfer procedures
8.5  Warning Message Transmission Procedures
8.6  System Information Procedures
8.7  Paging procedures
8.8  Trace Procedures [R16]
8.9  Radio Information Transfer procedures [R16]
9  Elements for F1AP Communication
9.1  General
9.2  Message Functional Definition and ContentWord-p. 52
9.2.1  Interface Management messages
9.2.2  UE Context Management messagesWord-p. 65
9.2.3  RRC Message Transfer messagesWord-p. 85
9.2.4  Warning Message Transmission Messages
9.2.5  System Information messages
9.2.6  Paging messages
9.2.7  Trace Messages [R16]Word-p. 93
9.2.8  Radio Information Transfer messages [R16]Word-p. 94
9.3  Information Element Definitions
9.3.1  Radio Network Layer Related IEs
9.3.1.1  Message Type
9.3.1.2  Cause
9.3.1.3  Criticality DiagnosticsWord-p. 97
9.3.1.4  gNB-CU UE F1AP ID
9.3.1.5  gNB-DU UE F1AP IDWord-p. 98
9.3.1.6  RRC-Container
9.3.1.7  SRB ID
9.3.1.8  DRB IDUp
9.3.1.9  gNB-DU ID
9.3.1.10  Served Cell Information
9.3.1.11  Transmission Action IndicatorWord-p. 100
9.3.1.12  NR CGI
9.3.1.13  Time To waitWord-p. 101
9.3.1.14  PLMN Identity
9.3.1.15  Transmission Bandwidth
9.3.1.16Void
9.3.1.17  NR Frequency Info
9.3.1.18  gNB-DU System InformationWord-p. 102
9.3.1.19  E-UTRAN QoSUp
9.3.1.20  Allocation and Retention PriorityWord-p. 103
9.3.1.21  GBR QoS Information
9.3.1.22  Bit RateWord-p. 104
9.3.1.23  Transaction ID
9.3.1.24  DRX Cycle
9.3.1.25  CU to DU RRC InformationWord-p. 105
9.3.1.26  DU to CU RRC InformationWord-p. 106
9.3.1.27  RLC ModeWord-p. 108
9.3.1.28  SUL Information
9.3.1.29  5GS TACUp
9.3.1.29a  Configured EPS TACWord-p. 109
9.3.1.30  RRC Reconfiguration Complete Indicator
9.3.1.31  UL Configuration
9.3.1.32  C-RNTI
9.3.1.33  Cell UL Configured
9.3.1.34  RAT-Frequency Priority InformationWord-p. 110
9.3.1.35  LCID
9.3.1.36  Duplication activation
9.3.1.37  Slice Support List
9.3.1.38  S-NSSAIUp
9.3.1.39  UE Identity Index valueWord-p. 111
9.3.1.40  Paging DRX
9.3.1.41  Paging Priority
9.3.1.42  gNB-CU System Information
9.3.1.43  RAN UE Paging identityWord-p. 112
9.3.1.44  CN UE Paging Identity
9.3.1.45  QoS Flow Level QoS Parameters
9.3.1.46  GBR QoS Flow InformationWord-p. 113
9.3.1.47  Dynamic 5QI Descriptor
9.3.1.48  NG-RAN Allocation and Retention PriorityWord-p. 114
9.3.1.49  Non Dynamic 5QI DescriptorWord-p. 115
9.3.1.50  Maximum Packet Loss RateWord-p. 116
9.3.1.51  Packet Delay Budget
9.3.1.52  Packet Error Rate
9.3.1.53  Averaging Window
9.3.1.54  Maximum Data Burst VolumeWord-p. 117
9.3.1.55  Masked IMEISV
9.3.1.56  Notification Control
9.3.1.57  RAN Area Code
9.3.1.58  PWS System InformationUp
9.3.1.59  Repetition PeriodWord-p. 118
9.3.1.60  Number of Broadcasts Requested
9.3.1.61Void
9.3.1.62  SIType List
9.3.1.63  QoS Flow IdentifierWord-p. 119
9.3.1.64  Served E-UTRA Cell Information
9.3.1.65  Available PLMN List
9.3.1.66  RLC Failure Indication
9.3.1.67  Uplink TxDirectCurrentList Information
9.3.1.68  Service StatusWord-p. 120
9.3.1.69  RLC StatusUp
9.3.1.70  RRC Version
9.3.1.71  RRC Delivery Status
9.3.1.72  QoS Flow Mapping IndicationWord-p. 121
9.3.1.73  Resource Coordination Transfer Information
9.3.1.74  E-UTRA PRACH Configuration
9.3.1.75  Resource Coordination E-UTRA Cell Information
9.3.1.76  Extended Available PLMN ListWord-p. 123
9.3.1.77  Associated SCell List
9.3.1.78  Cell Direction
9.3.1.79  Paging OriginUp
9.3.1.80  E-UTRA Transmission Bandwidth
9.3.1.81  Message IdentifierWord-p. 124
9.3.1.82  Serial Number
9.3.1.83  UAC Assistance InformationWord-p. 125
9.3.1.84  UAC Action
9.3.1.85  UAC reduction IndicationWord-p. 126
9.3.1.86  Additional SIB Message List
9.3.1.87  Cell Type
9.3.1.88  Trace Activation [R16]
9.3.1.89  Intended TDD DL-UL Configuration [R16]Word-p. 127
9.3.1.90  Additional RRM Policy Index [R16]Word-p. 128
9.3.1.91  DU-CU RIM Information [R16]
9.3.1.92  CU-DU RIM Information [R16]Word-p. 129
9.3.1.93  gNB Set ID [R16]
9.3.1.94  Lower Layer Presence Status Change [R16]
9.3.2  Transport Network Layer Related IEsWord-p. 130
9.4  Message and Information Element Abstract Syntax (with ASN.1)
9.5  Message Transfer SyntaxWord-p. 235
9.6  Timers
10  Handling of unknown, unforeseen and erroneous protocol data
A  Change HistoryWord-p. 236

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