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TS 38.463 (RAN3)
NG-RAN — E1 interface
E1 Application Protocol (E1AP)

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V15.5.0 (PDF)2019/09  179 p.

Rapporteur:  Dr. Fiorani, Matteo

The present document specifies the 5G radio network layer signalling protocol for the E1 interface. The E1 interface provides means for interconnecting a CU‑CP and a CU‑UP of a gNB within an NG‑RAN, or for interconnecting a CU‑CP and a CU‑UP of an en‑gNB within an E‑UTRAN. The E1 Application Protocol (E1AP) supports the functions of E1 interface by signalling procedures defined in the present document.

full Table of Contents for  TS 38.463  Word version:   15.5.0

 

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1  ScopeWord-p. 9
2  References
3  Definitions and abbreviationsWord-p. 10
4  General
5  E1AP services
6  Services expected from signalling transportUp
7  Functions of E1AP
8  E1AP proceduresWord-p. 13
8.1  List of E1AP Elementary Procedures
8.2  Interface Management proceduresWord-p. 14
8.3  Bearer Context Management procedures
8.3.1  Bearer Context Setup
8.3.2  Bearer Context Modification (gNB-CU-CP initiated)
8.3.3  Bearer Context Modification Required (gNB-CU-UP initiated)Word-p. 33
8.3.4  Bearer Context Release (gNB-CU-CP initiated)Up
8.3.5  Bearer Context Release Request (gNB-CU-UP initiated)
8.3.6  Bearer Context Inactivity Notification
8.3.7  DL Data NotificationWord-p. 36
8.3.8  Data Usage Report
8.3.9  gNB-CU-UP Counter CheckUp
8.3.10  UL Data Notification
8.3.11  MR-DC Data Usage Report
9  Elements for E1AP communicationWord-p. 39
9.1  General
9.2  Message Functional Definition and Content
9.2.1  Interface Management messages
9.2.2  Bearer Context Management messages
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. 61
9.3.1.4  gNB-CU-CP UE E1AP IDWord-p. 62
9.3.1.5  gNB-CU-UP UE E1AP ID
9.3.1.6  Time To waitWord-p. 63
9.3.1.7  PLMN Identity
9.3.1.8  Slice Support List
9.3.1.9  S-NSSAI
9.3.1.10  Security Information
9.3.1.11  Cell Group InformationWord-p. 64
9.3.1.12  QoS Flow List
9.3.1.13  UP Parameters
9.3.1.14  NR CGIWord-p. 65
9.3.1.15  gNB-CU-UP ID
9.3.1.16  DRB IDUp
9.3.1.17  E-UTRAN QoS
9.3.1.18  E-UTRAN Allocation and Retention PriorityWord-p. 66
9.3.1.19  GBR QoS Information
9.3.1.20  Bit RateWord-p. 67
9.3.1.21  PDU Session ID
9.3.1.22  PDU Session Type
9.3.1.23  Security IndicationWord-p. 68
9.3.1.24  QoS Flow Identifier
9.3.1.25  QoS Flow QoS Parameters List
9.3.1.26  QoS Flow Level QoS ParametersUp
9.3.1.27  Non Dynamic 5QI DescriptorWord-p. 69
9.3.1.28  Dynamic 5QI Descriptor
9.3.1.29  NG-RAN Allocation and Retention PriorityWord-p. 70
9.3.1.30  GBR QoS Flow InformationWord-p. 71
9.3.1.31  Security AlgorithmWord-p. 72
9.3.1.32  User Plane Security Keys
9.3.1.33  UL Configuration
9.3.1.34  gNB-CU-UP Cell Group Related ConfigurationWord-p. 73
9.3.1.35  PDCP Count
9.3.1.36  NR CGI Support ListWord-p. 74
9.3.1.37  QoS Parameters Support List
9.3.1.38  PDCP Configuration
9.3.1.39  SDAP ConfigurationWord-p. 75
9.3.1.40  ROHC ParametersWord-p. 76
9.3.1.41  T-Reordering Timer
9.3.1.42  Discard Timer
9.3.1.43  UL Data Split ThresholdWord-p. 77
9.3.1.44  Data Usage Report List
9.3.1.45  Flow Failed ListWord-p. 78
9.3.1.46  Packet Loss RateWord-p. 79
9.3.1.47  Packet Delay Budget
9.3.1.48  Packet Error Rate
9.3.1.49  Averaging Window
9.3.1.50  Maximum Data Burst Volume
9.3.1.51  Priority Level
9.3.1.52  Security ResultWord-p. 80
9.3.1.53  Transaction ID
9.3.1.54  Inactivity timer
9.3.1.55  Paging Priority Indicator (PPI)
9.3.1.56  gNB-CU-UP CapacityUp
9.3.1.58  PDCP SN Status InformationWord-p. 81
9.3.1.59  QoS Flow Mapping List
9.3.1.60  QoS Flow Mapping IndicationWord-p. 82
9.3.1.61  PDCP SN Size
9.3.1.62  Network Instance
9.3.1.63  MR-DC Usage Information
9.3.1.64  MR-DC Data Usage Report ListWord-p. 83
9.3.1.65  gNB-DU IDWord-p. 84
9.3.1.66  Common Network Instance
9.3.1.67  Activity Notification LevelWord-p. 85
9.3.2  Transport Network Layer Related IEs
9.3.3  Container and List IE definitions
9.4  Message and Information Element Abstract Syntax (with ASN.1)Word-p. 103
10  Handling of unknown, unforeseen and erroneous protocol dataWord-p. 177
A  Change HistoryWord-p. 178

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