LTE; Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2 Application Protocol (X2AP) (3GPP TS 36.423 version 15.7.0 Release 15)

RTS/TSGR-0336423vf70

General Information

Status
Published
Publication Date
15-Oct-2019
Current Stage
12 - Completion
Completion Date
16-Oct-2019
Ref Project

Buy Standard

Standard
ETSI TS 136 423 V15.7.0 (2019-10) - LTE; Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2 Application Protocol (X2AP) (3GPP TS 36.423 version 15.7.0 Release 15)
English language
427 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (sample)

ETSI TS 136 423 V15.7.0 (2019-10)
TECHNICAL SPECIFICATION
LTE;
Evolved Universal Terrestrial
Radio Access Network (E-UTRAN);
X2 Application Protocol (X2AP)
(3GPP TS 36.423 version 15.7.0 Release 15)
---------------------- Page: 1 ----------------------
3GPP TS 36.423 version 15.7.0 Release 15 1 ETSI TS 136 423 V15.7.0 (2019-10)
Reference
RTS/TSGR-0336423vf70
Keywords
LTE
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88
Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search

The present document may be made available in electronic versions and/or in print. The content of any electronic and/or

print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any

existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI

deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.

Users of the present document should be aware that the document may be subject to revision or change of status.

Information on the current status of this and other ETSI documents is available at

https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx

If you find errors in the present document, please send your comment to one of the following services:

https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification

No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying

and microfilm except as authorized by written permission of ETSI.

The content of the PDF version shall not be modified without the written authorization of ETSI.

The copyright and the foregoing restriction extend to reproduction in all media.
© ETSI 2019.
All rights reserved.

DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.

3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and

of the 3GPP Organizational Partners.

oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and

of the oneM2M Partners.
GSM and the GSM logo are trademarks registered and owned by the GSM Association.
ETSI
---------------------- Page: 2 ----------------------
3GPP TS 36.423 version 15.7.0 Release 15 2 ETSI TS 136 423 V15.7.0 (2019-10)
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.
Trademarks

The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.

ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no

right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does

not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.

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
---------------------- Page: 3 ----------------------
3GPP TS 36.423 version 15.7.0 Release 15 3 ETSI TS 136 423 V15.7.0 (2019-10)
Contents

Intellectual Property Rights ................................................................................................................................ 2

Legal Notice ....................................................................................................................................................... 2

Modal verbs terminology .................................................................................................................................... 2

Foreword ........................................................................................................................................................... 12

1 Scope ...................................................................................................................................................... 13

2 References .............................................................................................................................................. 13

3 Definitions, symbols and abbreviations ................................................................................................. 15

3.1 Definitions ........................................................................................................................................................ 15

3.2 Symbols ............................................................................................................................................................ 15

3.3 Abbreviations ................................................................................................................................................... 15

4 General ................................................................................................................................................... 16

4.1 Procedure specification principles .................................................................................................................... 16

4.2 Forwards and backwards compatibility ............................................................................................................ 17

4.3 Specification notations ..................................................................................................................................... 17

5 X2AP services ........................................................................................................................................ 17

5.1 X2AP procedure modules ................................................................................................................................ 17

5.2 Parallel transactions .......................................................................................................................................... 17

6 Services expected from signalling transport ........................................................................................... 18

7 Functions of X2AP ................................................................................................................................. 18

8 X2AP procedures ................................................................................................................................... 19

8.1 Elementary procedures ..................................................................................................................................... 19

8.2 Basic mobility procedures ................................................................................................................................ 22

8.2.1 Handover Preparation ................................................................................................................................. 22

8.2.1.1 General .................................................................................................................................................. 22

8.2.1.2 Successful Operation ............................................................................................................................. 23

8.2.1.3 Unsuccessful Operation ........................................................................................................................ 25

8.2.1.4 Abnormal Conditions ............................................................................................................................ 26

8.2.2 SN Status Transfer ...................................................................................................................................... 26

8.2.2.1 General .................................................................................................................................................. 26

8.2.2.2 Successful Operation ............................................................................................................................. 27

8.2.2.3 Abnormal Conditions ............................................................................................................................ 28

8.2.3 UE Context Release .................................................................................................................................... 28

8.2.3.1 General .................................................................................................................................................. 28

8.2.3.2 Successful Operation ............................................................................................................................. 29

8.2.3.3 Unsuccessful Operation ........................................................................................................................ 30

8.2.3.4 Abnormal Conditions ............................................................................................................................ 30

8.2.4 Handover Cancel ........................................................................................................................................ 30

8.2.4.1 General .................................................................................................................................................. 30

8.2.4.2 Successful Operation ............................................................................................................................. 31

8.2.4.3 Unsuccessful Operation ........................................................................................................................ 31

8.2.4.4 Abnormal Conditions ............................................................................................................................ 31

8.3 Global Procedures ............................................................................................................................................ 31

8.3.1 Load Indication ........................................................................................................................................... 31

8.3.1.1 General .................................................................................................................................................. 31

8.3.1.2 Successful Operation ............................................................................................................................. 31

8.3.1.3 Unsuccessful Operation ........................................................................................................................ 33

8.3.1.4 Abnormal Conditions ............................................................................................................................ 33

8.3.2 Error Indication ........................................................................................................................................... 33

8.3.2.1 General .................................................................................................................................................. 33

8.3.2.2 Successful Operation ............................................................................................................................. 33

8.3.2.3 Unsuccessful Operation ........................................................................................................................ 34

ETSI
---------------------- Page: 4 ----------------------
3GPP TS 36.423 version 15.7.0 Release 15 4 ETSI TS 136 423 V15.7.0 (2019-10)

8.3.2.4 Abnormal Conditions ............................................................................................................................ 34

8.3.3 X2 Setup ..................................................................................................................................................... 34

8.3.3.1 General .................................................................................................................................................. 34

8.3.3.2 Successful Operation ............................................................................................................................. 35

8.3.3.3 Unsuccessful Operation ........................................................................................................................ 36

8.3.3.4 Abnormal Conditions ............................................................................................................................ 36

8.3.4 Reset ........................................................................................................................................................... 36

8.3.4.1 General .................................................................................................................................................. 36

8.3.4.2 Successful Operation ............................................................................................................................. 37

8.3.4.3 Unsuccessful Operation ........................................................................................................................ 37

8.3.4.4 Abnormal Conditions ............................................................................................................................ 37

8.3.5 eNB Configuration Update ......................................................................................................................... 38

8.3.5.1 General .................................................................................................................................................. 38

8.3.5.2 Successful Operation ............................................................................................................................. 38

8.3.5.3 Unsuccessful Operation ........................................................................................................................ 40

8.3.5.4 Abnormal Conditions ............................................................................................................................ 40

8.3.6 Resource Status Reporting Initiation .......................................................................................................... 40

8.3.6.1 General .................................................................................................................................................. 40

8.3.6.2 Successful Operation ............................................................................................................................. 40

8.3.6.3 Unsuccessful Operation ........................................................................................................................ 42

8.3.6.4 Abnormal Conditions ............................................................................................................................ 42

8.3.7 Resource Status Reporting .......................................................................................................................... 43

8.3.7.1 General .................................................................................................................................................. 43

8.3.7.2 Successful Operation ............................................................................................................................. 43

8.3.7.3 Unsuccessful Operation ........................................................................................................................ 43

8.3.7.4 Abnormal Conditions ............................................................................................................................ 43

8.3.8 Mobility Settings Change ........................................................................................................................... 43

8.3.8.1 General .................................................................................................................................................. 43

8.3.8.2 Successful Operation ............................................................................................................................. 44

8.3.8.3 Unsuccessful Operation ........................................................................................................................ 44

8.3.8.4 Abnormal Conditions ............................................................................................................................ 44

8.3.9 Radio Link Failure Indication ..................................................................................................................... 44

8.3.9.1 General .................................................................................................................................................. 44

8.3.9.2 Successful Operation ............................................................................................................................. 45

8.3.9.3 Unsuccessful Operation ........................................................................................................................ 45

8.3.9.4 Abnormal Conditions ............................................................................................................................ 45

8.3.10 Handover Report ......................................................................................................................................... 45

8.3.10.1 General .................................................................................................................................................. 45

8.3.10.2 Successful Operation ............................................................................................................................. 46

8.3.10.3 Unsuccessful Operation ........................................................................................................................ 46

8.3.10.4 Abnormal Conditions ............................................................................................................................ 46

8.3.11 Cell Activation ............................................................................................................................................ 46

8.3.11.1 General .................................................................................................................................................. 46

8.3.11.2 Successful Operation ............................................................................................................................. 47

8.3.11.3 Unsuccessful Operation ........................................................................................................................ 47

8.3.11.4 Abnormal Conditions ............................................................................................................................ 47

8.3.12 X2 Removal ................................................................................................................................................ 47

8.3.12.1 General .................................................................................................................................................. 47

8.3.12.2 Successful Operation ............................................................................................................................. 48

8.3.12.3 Unsuccessful Operation ........................................................................................................................ 48

8.3.12.4 Abnormal Conditions ............................................................................................................................ 48

8.3.13 Retrieve UE Context ................................................................................................................................... 48

8.3.13.1 General .................................................................................................................................................. 48

8.3.13.2 Successful Operation ............................................................................................................................. 49

8.3.13.3 Unsuccessful Operation ........................................................................................................................ 50

8.3.13.4 Abnormal Conditions ............................................................................................................................ 50

8.3.14 EN-DC X2 Removal ................................................................................................................................... 50

8.3.14.1 General .................................................................................................................................................. 50

8.3.14.2 Successful Operation ............................................................................................................................. 50

8.3.14.3 Unsuccessful Operation ........................................................................................................................ 51

8.3.14.4 Abnormal Conditions ............................................................................................................................ 52

8.3.15 Data Forwarding Address Indication .......................................................................................................... 52

ETSI
---------------------- Page: 5 ----------------------
3GPP TS 36.423 version 15.7.0 Release 15 5 ETSI TS 136 423 V15.7.0 (2019-10)

8.3.15.1 General .................................................................................................................................................. 52

8.3.15.2 Successful Operation ............................................................................................................................. 52

8.3.15.3 Unsuccessful Operation ........................................................................................................................ 52

8.3.15.4 Abnormal Conditions ............................................................................................................................ 53

8.4 X2 Release........................................................................................................................................................ 53

8.4.1 General ........................................................................................................................................................ 53

8.4.2 Successful Operation .................................................................................................................................. 53

8.4.3 Unsuccessful Operation .............................................................................................................................. 53

8.4.4 Abnormal Condition ................................................................................................................................... 53

8.5 X2AP Message Transfer .................................................................................................................................. 53

8.5.1 General ........................................................................................................................................................ 53

8.5.2 Successful Operation ........................................................................................................................................ 54

8.5.3 Unsuccessful Operation .............................................................................................................................. 54

8.5.4 Abnormal Condition ................................................................................................................................... 54

8.6 Procedures for Dual Connectivity .................................................................................................................... 54

8.6.1 SeNB Addition Preparation ........................................................................................................................ 54

8.6.1.1 General .................................................................................................................................................. 54

8.6.1.2 Successful Operation ............................................................................................................................. 55

8.6.1.3 Unsuccessful Operation ........................................................................................................................ 56

8.6.1.4 Abnormal Conditions ............................................................................................................................ 56

8.6.2 SeNB Reconfiguration Completion ............................................................................................................ 57

8.6.2.1 General .................................................................................................................................................. 57

8.6.2.2 Successful Operation ............................................................................................................................. 57

8.6.2.3 Abnormal Conditions ............................................................................................................................ 58

8.6.3 MeNB initiated SeNB Modification Preparation ........................................................................................ 58

8.6.3.1 General .................................................................................................................................................. 58

8.6.3.2 Successful Operation ............................................................................................................................. 58

8.6.3.3 Unsuccessful Operation ........................................................................................................................ 60

8.6.3.4 Abnormal Conditions ............................................................................................................................ 60

8.6.4 SeNB initiated SeNB Modification ............................................................................................................ 61

8.6.4.1 General .................................................................................................................................................. 61

8.6.4.2 Successful Operation ............................................................................................................................. 61

8.6.4.3 Unsuccessful Operation ........................................................................................................................ 62

8.6.4.4 Abnormal Conditions ............................................................................................................................ 62

8.6.5 MeNB initiated SeNB Release.................................................................................................................... 63

8.6.5.1 General .................................................................................................................................................. 63

8.6.5.2 Successful Operation ............................................................................................................................. 63

8.6.5.3 Unsuccessful Operation ........................................................................................................................ 63

8.6.5.4 Abnormal Conditions ............................................................................................................................ 64

8.6.6 SeNB initiated SeNB Release ..................................................................................................................... 64

8.6.6.1 General .................................................................................................................................................. 64

8.6.6.2 Successful Operation ..................................
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.