1、 ETSI TS 125 432 V15.0.0 (2018-07) Universal Mobile Telecommunications System (UMTS); UTRAN Iub interface: signalling transport (3GPP TS 25.432 version 15.0.0 Release 15) TECHNICAL SPECIFICATION ETSI ETSI TS 125 432 V15.0.0 (2018-07)13GPP TS 25.432 version 15.0.0 Release 15Reference RTS/TSGR-0325432
2、vf00 Keywords UMTS 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 document can be
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8、egistered for the benefit of its Members and of the 3GPP Organizational Partners. oneM2M logo is protected for the benefit of its Members. GSMand the GSM logo are trademarks registered and owned by the GSM Association. ETSI ETSI TS 125 432 V15.0.0 (2018-07)23GPP TS 25.432 version 15.0.0 Release 15In
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11、luding 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
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13、document does not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document may refer to technical specifications or r
14、eports 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, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.asp. Modal verbs termi
15、nology 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
16、 ETSI deliverables except when used in direct citation. ETSI ETSI TS 125 432 V15.0.0 (2018-07)33GPP TS 25.432 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g31 Scope 5g32 References 5g33 Definitions, symbols and abbreviations .
17、 6g33.1 Definitions 6g33.2 Symbols 6g33.3 Abbreviations . 6g34 Data Link Layer . 6g34.1 ATM Transport Option 6g34.1.1 Protection switching at ATM Layer . 6g34.2 Data Link Layer for IP Transport Option . 6g35 NBAP signalling bearer 7g35.1 Introduction 7g35.2 Signalling bearer in case of ATM Transport
18、 Option 7g35.3 Signalling bearer in case of IP Transport Option . 7g3Annex A (informative): Change history . 8g3History 9g3ETSI ETSI TS 125 432 V15.0.0 (2018-07)43GPP TS 25.432 version 15.0.0 Release 15Foreword This Technical Specification has been produced by the 3rdGeneration Partnership Project (
19、3GPP). The contents of the present document are subject to continuing work within the TSG and may change following 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
20、number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 2 presented to 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,
21、 updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 125 432 V15.0.0 (2018-07)53GPP TS 25.432 version 15.0.0 Release 151 Scope The present document specifies the signalling transport related to NBAP signalling to be used acr
22、oss the Iub Interface. The Iub interface is a logical interface for the interconnection of Node B and Radio Network Controller (RNC) components of the UMTS Terrestrial Radio Access Network (UTRAN) for the UMTS system. The radio network control signalling between these nodes is based on the Node B ap
23、plication part (NBAP). 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. g404 References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific. g404 For
24、 a specific reference, subsequent revisions do not apply. g404 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 document in the same Release as
25、the present document. 1 ITU-T Recommendation Q.2100 (1994-07): “B-ISDN signalling ATM adaptation layer (SAAL) overview description“. 2 ITU-T Recommendation Q.2130 (1994-07): “B-ISDN signalling ATM adaptation layer Service specific coordination function for support of signalling at the user network i
26、nterface (SSCFUNI)“. 3 ITU-T Recommendation Q.2110 (1994-07): “B-ISDN ATM adaptation layer Service specific connection oriented protocol (SSCOP)“. 4 ITU-T Recommendation I.363.5 (1996-08): “B-ISDN ATM Adaptation LayerSpecification : Type 5 AAL“. 5 ITU-T Recommendation I.361 (1995-11): “B-ISDN ATM la
27、yer specification“. 6 ITU-T Recommendation I.630 (1999-02): “ATM protection switching“. 7 IETF RFC 2960 (2000-10): “Stream Control Transmission Protocol“. 8 IETF RFC 2460 (1998-12): “Internet Protocol, Version 6 (IPv6) Specification“. 9 IETF RFC 791 (1981-09): “Internet Protocol“. 10 IETF RFC 2474 (
28、1998-12): “Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers“. 11 IETF RFC 1661 (1994-07): “The Point-to-Point Protocol (PPP)“. 12 IETF RFC 1662 (1994-07): “PPP in HDLC-like Framing“. 13 IETF RFC 2507 (1999-02): “IP header compression“. 14 IETF RFC 1990 (1996-08
29、): “The PPP Multilink Protocol (MP)“. 15 IETF RFC 2686 (1999-09): “The Multi-Class Extension to Multi-Link PPP“. 16 IETF RFC 2509 (1999-02): “IP Header Compression over PPP“. 17 IETF RFC 3153 (2001-08): “PPP Multiplexing“. 18 IETF RFC 2364 (1998-07): “PPP over AAL5“. 19 IETF RFC 3031 (2001-01): “Mul
30、tiprotocol Label Switching Architecture“. ETSI ETSI TS 125 432 V15.0.0 (2018-07)63GPP TS 25.432 version 15.0.0 Release 1520 IETF RFC 3309 (2002-09): “Stream Control Transmission Protocol (SCTP) Checksum Change“. 21 3GPP TS 25.433: “UTRAN Iub interface Node B Application Part (NBAP) signalling“. 3 De
31、finitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: IP UTRAN node: An UTRAN Node supporting the IP Transport Option 3.2 Symbols (void) 3.3 Abbreviations AAL ATM Adaptation Layer ATM Asynchronous Transfer Mode HDLC
32、High-level Data Link Control IP Internet Protocol NBAP Node B Application Part PPP Point-to-Point ProtocolRNC Radio Network Controller SAAL Signalling ATM Adaptation Layer SCTP Stream Control Transmission Protocol SSCF Service Specific Coordination Function SSCOP Service Specific Connection Oriented
33、 Protocol UNI User-Network Interface 4 Data Link Layer 4.1 ATM Transport Option ATM shall be used in the radio network control plane according to ITU-T Rec. I.361 5. 4.1.1 Protection switching at ATM Layer If redundancy of pathways at ATM layer between RNC and Node B is supported, it shall be implem
34、ented using ATM Protection Switching according to ITU-T Rec. I.630 6. 4.2 Data Link Layer for IP Transport Option A RNC or Node B supporting IP Transport Option shall support the PPP protocol with HDLC framing (IETF RFC 1661 11, IETF RFC 1662 12). NOTE: This does not preclude the single implementati
35、on and use of any other L2/L1 protocols (e.g. PPPMux/AAL5/ATM (IETF RFC 3153 17, IETF RFC 2364 18), PPP/AAL2/ATM, Ethernet, MPLS/ATM (IETF RFC 3031 19), etc.) fulfilling the UTRAN requirements towards the upper layers. A RNC or Node B supporting IP transport option and having interfaces connected vi
36、a slow bandwidth PPP links like E1/T1/J1 shall also support IP Header Compression (IETF RFC 2507 13) and the PPP extensions ML/MC-PPP (IETF RFC 1990 14, IETF RFC 2686 15). In this case, negotiation of header compression (IETF RFC 2507 13) over PPP shall be performed via (IETF RFC 2509 16). ETSI ETSI
37、 TS 125 432 V15.0.0 (2018-07)73GPP TS 25.432 version 15.0.0 Release 155 NBAP signalling bearer 5.1 Introduction The Signalling Bearer for NBAP (TS 25.433 21) is a point-to-point protocol. There may be multiple point-to-point links between an RNC and a Node B. As shown in figure 1, the standard allow
38、s operators to choose one out of two protocol suites for transporting the NBAP messages. NodeB Application Part (NBAP) AAL Type 5 SSCF-UNI SSCOP NodeB Application Part (NBAP) Data Link Layer Physical Layer IP SCTP Physical Layer ATM Protocol Suite for ATM Transport Option Protocol Suite for IP Trans
39、port Option Figure 1: Iub NBAP Signalling Transport 5.2 Signalling bearer in case of ATM Transport Option The signalling bearer in the Radio Network Control Plane is SAAL-UNI (ITU-T Rec. Q.2100 1) over ATM. The protocols to be used to support NBAP signalling are SSCF-UNI (ITU-T Rec. Q.2130 2) on top
40、 of SSCOP (ITU-T Rec. Q.2110 3) and AAL Type 5 (ITU-T Rec. I.363.5 4). 5.3 Signalling bearer in case of IP Transport Option SCTP (IETF RFC 2960 7) over IP shall be supported as the transport for NBAP signalling bearer on Iub Interface. A RNC equipped with the SCTP stack option shall initiate the INI
41、T procedure for establishing association. The data link layer is as specified in chapter 4.2. The checksum method specified in IETF RFC 3309 20 shall be used instead of the method specified in IETF RFC 2960 (7). An IP UTRAN node shall support IPv6 (IETF RFC 2460 8). The support of IPv4 (IETF RFC 791
42、 9) is optional. NOTE: This does not preclude single implementation and use of IPv4. IP dual stack is recommended for the potential transition period from IPv4 to IPv6 in the transport network. Each signalling bearer between the RNC and Node B shall correspond to one single SCTP stream in UL and one
43、 single SCTP stream in DL direction, both streams belonging to the same SCTP association. IP Differentiated Services code point marking (IETF RFC 2474 10) shall be supported. The Diffserv code point may be determined from the application parameters. ETSI ETSI TS 125 432 V15.0.0 (2018-07)83GPP TS 25.
44、432 version 15.0.0 Release 15Annex A (informative): Change history Date / TSG TSG Doc. CR Rev Subject/Comment New 12/2008 - - - Creation of Rel-8 version based on v7.1.0 8.0.0 12/2009 - - - Creation of Rel-9 version based on v8.0.0 9.0.0 SP-49 SP-100629 Clarification on the use of References (TS 21.
45、801 CR#0030) 9.0.1 03/2011 Creation of Rel-10 version based on v9.0.1 10.0.0 52 RP-110685 0008 1 Correction to the References 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 Change history Date Meeting T
46、Doc CR Rev Cat Subject/Comment New version 2017-03g3 SA#75g3 Promotion to Release 14 without technical changeg3 14.0.0g32018-07 SA#80 - - - - Promotion to Release 15 without technical change 15.0.0 ETSI ETSI TS 125 432 V15.0.0 (2018-07)93GPP TS 25.432 version 15.0.0 Release 15History Document history V15.0.0 July 2018 Publication
