ETSI TS 138 463 V15.6.0 (2020-01)

ETSI TS 138 463 V15.6.0 (2020-01)






TECHNICAL SPECIFICATION
5G;
NG-RAN;
E1 Application Protocol (E1AP)
(3GPP TS 38.463 version 15.6.0 Release 15)

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3GPP TS 38.463 version 15.6.0 Release 15 1 ETSI TS 138 463 V15.6.0 (2020-01)



Reference
RTS/TSGR-0338463vf60
Keywords
5G
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3GPP TS 38.463 version 15.6.0 Release 15 2 ETSI TS 138 463 V15.6.0 (2020-01)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
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Legal Notice
This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
The present document may refer to technical specifications or reports using their 3GPP identities. These shall be
interpreted as being references to the corresponding ETSI deliverables.
The cross reference between 3GPP and ETSI identities can be found under http://webapp.etsi.org/key/queryform.asp.
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI

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3GPP TS 38.463 version 15.6.0 Release 15 3 ETSI TS 138 463 V15.6.0 (2020-01)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 8
1 Scope . 9
2 References . 9
3 Definitions and abbreviations . 10
3.1 Definitions . 10
3.2 Abbreviations . 11
4 General . 11
4.1 Procedure specification principles . 11
4.2 Forwards and backwards compatibility . 12
4.3 Specification notations . 12
5 E1AP services . 12
6 Services expected from signalling transport . 12
7 Functions of E1AP . 12
8 E1AP procedures . 13
8.1 List of E1AP Elementary Procedures . 13
8.2 Interface Management procedures . 14
8.2.1 Reset . 14
8.2.1.1 General . 14
8.2.1.2 Successful Operation . 14
8.2.1.2.1 Reset Procedure Initiated from the gNB-CU-CP . 14
8.2.1.2.2 Reset Procedure Initiated from the gNB-CU-UP . 15
8.2.1.3 Abnormal Conditions . 16
8.2.2 Error Indication . 16
8.2.2.1 General . 16
8.2.2.2 Successful Operation . 16
8.2.2.3 Abnormal Conditions . 16
8.2.3 gNB-CU-UP E1 Setup . 17
8.2.3.1 General . 17
8.2.3.2 Successful Operation . 17
8.2.3.3 Unsuccessful Operation . 18
8.2.3.4 Abnormal Conditions . 18
8.2.4 gNB-CU-CP E1 Setup . 18
8.2.4.1 General . 18
8.2.4.2 Successful Operation . 19
8.2.4.3 Unsuccessful Operation . 19
8.2.4.4 Abnormal Conditions . 20
8.2.5 gNB-CU-UP Configuration Update . 20
8.2.5.1 General . 20
8.2.5.2 Successful Operation . 20
8.2.5.3 Unsuccessful Operation . 21
8.2.5.4 Abnormal Conditions . 21
8.2.6 gNB-CU-CP Configuration Update . 21
8.2.6.1 General . 21
8.2.6.2 Successful Operation . 22
8.2.6.3 Unsuccessful Operation . 23
8.2.6.4 Abnormal Conditions . 23
8.2.7 E1 Release . 23
8.2.7.1 General . 23
ETSI

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3GPP TS 38.463 version 15.6.0 Release 15 4 ETSI TS 138 463 V15.6.0 (2020-01)
8.2.7.2 Successful Operation . 23
8.2.7.2.1 E1 Release Procedure Initiated from the gNB-CU-CP . 23
8.2.7.2.2 E1 Release Procedure Initiated from the gNB-CU-UP . 24
8.2.7.3 Abnormal Conditions . 24
8.2.8 gNB-CU-UP Status Indication . 24
8.2.8.1 General . 24
8.2.8.2 Successful Operation . 24
8.2.8.3 Abnormal Conditions . 25
8.3 Bearer Context Management procedures . 25
8.3.1 Bearer Context Setup . 25
8.3.1.1 General . 25
8.3.1.2 Successful Operation . 25
8.3.1.3 Unsuccessful Operation . 28
8.3.1.4 Abnormal Conditions . 28
8.3.2 Bearer Context Modification (gNB-CU-CP initiated) . 28
8.3.2.1 General . 28
8.3.2.2 Successful Operation . 29
8.3.2.3 Unsuccessful Operation . 32
8.3.2.4 Abnormal Conditions . 32
8.3.3 Bearer Context Modification Required (gNB-CU-UP initiated) . 33
8.3.3.1 General . 33
8.3.3.2 Successful Operation . 33
8.3.3.3 Abnormal Conditions . 33
8.3.4 Bearer Context Release (gNB-CU-CP initiated). 33
8.3.4.1 General . 33
8.3.4.2 Successful Operation . 34
8.3.4.3 Abnormal Conditions . 34
8.3.5 Bearer Context Release Request (gNB-CU-UP initiated). 34
8.3.5.1 General . 34
8.3.5.2 Successful Operation . 34
8.3.5.3 Abnormal Conditions . 35
8.3.6 Bearer Context Inactivity Noti ficatio n . 35
8.3.6.1 General . 35
8.3.6.2 Successful Operation . 35
8.3.6.3 Abnormal Conditions . 35
8.3.7 DL Data Notification . 36
8.3.7.1 General . 36
8.3.7.2 Successful Operation . 36
8.3.7.3 Abnormal Conditions . 36
8.3.8 Data Usage Report . 36
8.3.8.1 General . 36
8.3.8.2 Successful Operation . 36
8.3.8.3 Abnormal Conditions . 37
8.3.9 gNB-CU-UP Counter Check. 37
8.3.9.1 General . 37
8.3.9.2 Successful Operation . 37
8.3.9.3 Unsuccessful Operation . 37
8.3.9.4 Abnormal Conditions . 37
8.3.10 UL Data Notification . 37
8.3.10.1 General . 37
8.3.10.2 Successful Operation . 38
8.3.10.3 Abnormal Conditions . 38
8.3.11 MR-DC Data Usage Report . 38
8.3.11.1 General . 38
8.3.11.2 Successful Operation . 38
8.3.11.3 Abnormal Conditions . 38
9 Elements for E1AP communication . 39
9.1 General . 39
9.2 Message Functional Definition and Content . 39
9.2.1 Interface Management messages . 39
9.2.1.1 RESET . 39
ETSI

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3GPP TS 38.463 version 15.6.0 Release 15 5 ETSI TS 138 463 V15.6.0 (2020-01)
9.2.1.2 RESET ACKNOWLEDGE . 40
9.2.1.3 ERROR INDICATION . 40
9.2.1.4 GNB-CU-UP E1 SETUP REQUEST . 40
9.2.1.5 GNB-CU-UP E1 SETUP RESPONSE. 41
9.2.1.6 GNB-CU-UP E1 SETUP FAILURE . 41
9.2.1.7 GNB-CU-CP E1 SETUP REQUEST . 42
9.2.1.8 GNB-CU-CP E1 SETUP RESPONSE . 42
9.2.1.9 GNB-CU-CP E1 SETUP FAILURE . 42
9.2.1.10 GNB-CU-UP CONFIGURATION UPDATE . 43
9.2.1.11 GNB-CU-UP CONFIGURATION UPDATE ACKNOWLEDGE . 43
9.2.1.12 GNB-CU-UP CONFIGURATION UPDATE FAILURE . 44
9.2.1.13 GNB-CU-CP CONFIGURATION UPDATE . 44
9.2.1.14 GNB-CU-CP CONFIGURATION UPDATE ACKNOWLEDGE . 46
9.2.1.15 GNB-CU-CP CONFIGURATION UPDATE FAILURE . 46
9.2.1.16 E1 RELEASE REQUEST . 46
9.2.1.17 E1 RELEASE RESPONSE . 47
9.2.1.18 GNB-CU-UP STATUS INDICATION. 47
9.2.2 Bearer Context Management messages . 47
9.2.2.1 BEARER CONTEXT SETUP REQUEST . 47
9.2.2.2 BEARER CONTEXT SETUP RESPONSE . 48
9.2.2.3 BEARER CONTEXT SETUP FAILURE . 49
9.2.2.4 BEARER CONTEXT MODIFICATION REQUEST . 49
9.2.2.5 BEARER CONTEXT MODIFICATION RESPONSE . 51
9.2.2.6 BEARER CONTEXT MODIFICATION FAILURE . 51
9.2.2.7 BEARER CONTEXT MODIFICATION REQUIRED . 52
9.2.2.8 BEARER CONTEXT MODIFICATION CONFIRM . 52
9.2.2.9 BEARER CONTEXT RELEASE COMMAND . 53
9.2.2.10 BEARER CONTEXT RELEASE COMPLETE . 53
9.2.2.11 BEARER CONTEXT RELEASE REQUEST . 53
9.2.2.12 BEARER CONTEXT INACTIVITY NOTIFICATION . 54
9.2.2.13 DL DATA NOTIFICATION . 55
9.2.2.14 DATA USAGE REPORT . 56
9.2.2.15 GNB-CU-UP COUNTER CHECK REQUEST . 56
9.2.2.16 UL DATA NOTIFICATION . 57
9.2.2.17 MR-DC DATA USAGE REPORT . 58
9.3 Information Element Definitions . 58
9.3.1 Radio Network Layer Related IEs . 58
9.3.1.1 Message Type . 58
9.3.1.2 Cause . 58
9.3.1.3 Criticality Diagnostics . 61
9.3.1.4 gNB-CU-CP UE E1AP ID . 62
9.3.1.5 gNB-CU-UP UE E1AP ID . 62
9.3.1.6 Time To wait . 63
9.3.1.7 PLMN Identity . 63
9.3.1.8 Slice Support List . 63
9.3.1.9 S-NSSAI . 63
9.3.1.10 Security Information . 63
9.3.1.11 Cell Group Information . 64
9.3.1.12 QoS Flow List . 64
9.3.1.13 UP Parameters . 65
9.3.1.14 NR CGI .
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