1、 ETSI TS 1Evolved Universal TerresS1 s(3GPP TS 36.4TECHNICAL SPECIFICATION136 412 V13.0.0 (2016LTE; restrial Radio Access Network (1 signalling transport 6.412 version 13.0.0 Release 1316-01) k (E-UTRAN); ) ETSI ETSI TS 136 412 V13.0.0 (2016-01)13GPP TS 36.412 version 13.0.0 Release 13Reference RTS/
2、TSGR-0336412vd00 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 but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present docum
3、ent 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 cas
4、e of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the docume
5、nt may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: https:/portal.etsi.o
6、rg/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 withou
7、t the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2016. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Memb
8、ers. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 136 412 V13.0.0 (2016-01)23GPP TS 36.412 version 13.0.0 Release 13Intellectual
9、 Property Rights IPRs essential or potentially essential to the present document 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 (IPR
10、s); 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
11、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. Foreword This Technical Specification (TS) has been produced by ETSI 3rd
12、Generation Partnership Project (3GPP). The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables. The cross reference between GSM, UMTS,
13、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 Dr
14、afting 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 ETSI TS 136 412 V13.0.0 (2016-01)33GPP TS 36.412 version 13.0.0 Release 13Contents Intellectual Property Rights 2g3Foreword . 2g3Modal ve
15、rbs terminology 2g3Foreword . 4g31 Scope 5g32 References 5g33 Definitions and abbreviations . 5g33.1 Definitions 5g33.2 Abbreviations . 5g34 S1 signalling bearer 6g34.1 Functions and protocol stack 6g35 Data link layer 6g36 IP layer . 6g37 Transport layer . 6g3Annex A (informative): Change History 8
16、g3History 9g3ETSI ETSI TS 136 412 V13.0.0 (2016-01)43GPP TS 36.412 version 13.0.0 Release 13Foreword This Technical Specification has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to continuing work within the TSG and may change follo
17、wing formal TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an identifying change of release date and an increase in version number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 2 presented to
18、TSG for approval; 3 or greater indicates TSG approved document under change control. y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the docu
19、ment. ETSI ETSI TS 136 412 V13.0.0 (2016-01)53GPP TS 36.412 version 13.0.0 Release 131 Scope The present document specifies the standards for signalling transport to be used across S1 interface. S1 interface is a logical interface between the eNB and the E-UTRAN core network. The present document de
20、scribes how the S1-AP signalling messages are transported over S1. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date of publication, edition number, version
21、number, etc.) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that doc
22、ument in the same Release as the present document. 1 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 2 IETF RFC 2460 (1998-12): “Internet Protocol, Version 6 (IPv6) Specification“. 3 IETF RFC 791(1981-09): “Internet Protocol“. 4 IETF RFC 2474 (1998-12): “Definition of the Differentiated Servic
23、es Field (DS Field) in the IPv4 and IPv6 Headers“. 5 IETF RFC 4960 (2007-09): “Stream Control Transmission Protocol“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in TR 21.905 1 and the following apply. A term defined in th
24、e present document takes precedence over the definition of the same term, if any, in TR 21.905 1. S1: interface between an eNB and an EPC, providing an interconnection point between the EUTRAN and the EPC. It is also considered as a reference point. S1-MME: Reference point for the control plane prot
25、ocol between E-UTRAN and MME. 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply. eNB E-UTRAN Node B EPC DiffServ Differentiated Service IP Internet Protocol MME Mobility Management Entity PPP Point to Point Protocol SCTP Stream Control Transmission Protoco
26、l ETSI ETSI TS 136 412 V13.0.0 (2016-01)63GPP TS 36.412 version 13.0.0 Release 134 S1 signalling bearer 4.1 Functions and protocol stack S1 signalling bearer provides the following functions: - Provision of reliable transfer of S1-AP message over S1-MME interface. - Provision of networking and route
27、ing function - Provision of redundancy in the signalling network - Support for flow control and congestion control The protocol stack for S1 signalling bearer is shown in figure 4.1 and details on each protocol are described in the following clauses. SCTP IP Data link layer S1-AP Physical layer Radi
28、o Network Layer TransportNetworkLayer Figure 4.1: S1-MME signalling bearer protocol stack The transport network layer is based on IP transport, comprising SCTP on top of IP. 5 Data link layer The support of any suitable data link layer protocol, e.g. PPP, Ethernet, etc. , shall not be prevented. 6 I
29、P layer The eNB and MME shall support IPv6 (IETF RFC 2460 2) and/or IPv4 (IETF RFC 791 3). The IP layer of S1-MME only supports point-to-point transmission for delivering S1-AP message. The eNB and MME shall support the Diffserv Code Point marking as described in IETF RFC 2474 4. 7 Transport layer S
30、CTP (IETF RFC 4960 5) shall be supported as the transport layer of S1-MME signalling bearer. The Payload Protocol Identifier assigned by IANA to be used by SCTP for the application layer protocol S1AP is 18. SCTP refers to the Stream Control Transmission Protocol developed by the Sigtran working gro
31、up of the IETF for the purpose of transporting various signalling protocols over IP network. ETSI ETSI TS 136 412 V13.0.0 (2016-01)73GPP TS 36.412 version 13.0.0 Release 13There shall be only one SCTP association established between one MME and eNB pair. The eNB shall establish the SCTP association.
32、 The SCTP Destination Port number value assigned by IANA to be used for S1AP is 36412. Within the SCTP association established between one MME and eNB pair: - a single pair of stream identifiers shall be reserved for the sole use of S1AP elementary procedures that utilize non UE-associated signallin
33、g. - At least one pair of stream identifiers shall be reserved for the sole use of S1AP elementary procedures that utilize UE-associated signallings. However a few pairs (i.e. more than one) should be reserved. - A single UE-associated signalling shall use one SCTP stream and the stream should not b
34、e changed during the communication of the UE-associated signalling. Transport network redundancy may be achieved by SCTP multi-homing between two end-points, of which one or both is assigned with multiple IP addresses. SCTP end-points shall support a multi-homed remote SCTP end-point. For SCTP endpo
35、int redundancy an INIT may be sent from MME or eNB, at any time for an already established SCTP association, which shall be handled as defined in IETF RFC 4960 5 in subclause 5.2. The SCTP congestion control may, using an implementation specific mechanism, initiate higher layer protocols to reduce t
36、he signalling traffic at the source and prioritise certain messages. ETSI ETSI TS 136 412 V13.0.0 (2016-01)83GPP TS 36.412 version 13.0.0 Release 13Annex A (informative): Change History TSG # TSG Doc. CR Rev Subject/Comment New 38 Specification approved at TSG-RAN and placed under change control 8.0
37、.0 39 RP-080077 0001 - Dedication of common streams over S1-MME 8.1.0 40 RP-080301 0004 - SCTP flow control and overload protection 8.2.0 40 RP-080301 0005 - Redundancy of the SCTP endpoint 8.2.0 41 RP-080583 0007 1 Correct the wording of common and dedicated procedures 8.3.0 41 RP-080583 0008 Enhan
38、cing the understandability of section 7 TS 36.412 8.3.0 41 RP-080583 0009 Clarification of SCTP Congestion Indication over S1 8.3.0 42 RP-080845 0010 Removal of chapter 8 8.4.0 43 RP-090090 0011 1 The use of the number of stream ID for a UE-associated signalling 8.5.0 43 RP-090085 0012 1 Clarificati
39、on of SCTP streams 8.5.0 43 RP-090083 0013 CR for FFS(es) on signalling bearer function 8.5.0 43 RP-090085 0015 1 Clarification the overload protection function support in SCTP 8.5.0 46 RP-091183 0016 1 Specification of SCTP destination port number 8.6.0 12/2009 Creation of Rel-9 version based on v8
40、.6.0 9.0.0 47 RP-100213 0018 Specification of Payload Identifier 9.1.0 12/2010 Creation of Rel-10 version based on v9.1.0 10.0.0 SP-49 SP-100629 Clarification on the use of References (TS 21.801 CR#0030) 10.0.1 52 RP-110685 0020 Correction to the References in 36.412 10.1.0 09/2012 Update to Rel-11 version (MCC) 11.0.0 09/2014 Update to Rel-12 version (MCC) 12.0.0 12/2015 Update to Rel-13 version (MCC) 13.0.0 ETSI ETSI TS 136 412 V13.0.0 (2016-01)93GPP TS 36.412 version 13.0.0 Release 13History Document history V13.0.0 January 2016 Publication
