1、 ETSI TS 1Universal Mobile TelUTRAN Iu interface da(3GPP TS 25.4TECHNICAL SPECIFICATION125 414 V13.0.0 (2016elecommunications System (data transport and transport s.414 version 13.0.0 Release 1316-01) (UMTS); t signalling 13) ETSI ETSI TS 125 414 V13.0.0 (2016-01)13GPP TS 25.414 version 13.0.0 Relea
2、se 13Reference RTS/TSGR-0325414vd00 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 noti
3、ce 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 authoriza
4、tion of ETSI. In case 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 a
5、ware 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 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:
6、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 no
7、t be modified without 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
8、 benefit of its Members. 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 125 414 V13.0.0 (2016-01)23GPP TS 25.414 version 13.0.0 Re
9、lease 13Intellectual 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
10、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
11、 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. Foreword This Technical Specification (TS) has been p
12、roduced by ETSI 3rd 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
13、 between GSM, UMTS, 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 claus
14、e 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 ETSI TS 125 414 V13.0.0 (2016-01)33GPP TS 25.414 version 13.0.0 Release 13Contents Intellectual Property Rights 2g3Fo
15、reword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g32 References 6g33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 7g34 Data Link Layer . 8g34.1 ATM Transport Option 8g34.2 IP Transport Option 8g35 Circuit switched domain . 8g35.1 Transport network user plane
16、 . 8g35.1.1 General 8g35.1.2 ATM Transport Option . 9g35.1.2.1 ATM Adaptation Layer 2 9g35.1.2.1.1 AAL2-Segmentation and Reassembly Service Specific Convergence Sublayer (I.366.1) 9g35.1.2.1.2 AAL2-specification (I.363.2) 9g35.1.3 IP Transport Option 9g35.1.3.1 General 9g35.1.3.2 UDP/IP 9g35.1.3.3 R
17、TP . 10g35.1.3.3.1 RTP Header . 10g35.1.3.3.1.4 Contributing Source (CSRC) count . 10g35.1.3.3.1.5 Marker Bit 10g35.1.3.3.1.6 Payload Type . 10g35.1.3.3.1.7 Sequence Number 10g35.1.3.3.1.8 Timestamp . 10g35.1.3.3.1.9 Synchronisation Source (SSRC) 11g35.1.3.3.1.10 CSRC list . 11g35.1.3.3.2 RTP Payloa
18、d 11g35.1.3.4 RTCP . 11g35.1.3.5 Diffserv code point marking . 11g35.2 Transport network control plane 11g35.2.1 General 11g35.2.2 Transport Signalling for the ATM Transport Option 12g35.2.2.1 Signalling protocol (ALCAP) . 12g35.2.2.1.1 AAL2 Signalling Protocol (Q.2630.2) . 12g35.2.2.2 Signalling tr
19、ansport converter . 12g35.2.2.2.1 AAL2 MTP3B Signalling Transport Converter (Q.2150.1) 12g35.2.2.3 MTP3b (Q.2210) . 12g35.2.2.4 SSCF-NNI (Q.2140) . 12g35.2.2.5 SSCOP (Q.2110) . 12g35.2.2.6 ATM Adaptation Layer Type 5 (I.363.5) 13g35.3 Interworking between ATM and IP Transport Options 13g35.3.1 Intro
20、duction. 13g35.3.2 Interworking Alternatives . 13g36 Packet switched domain . 13g36.1 Transport network user plane . 13g36.1.1 General 13g3ETSI ETSI TS 125 414 V13.0.0 (2016-01)43GPP TS 25.414 version 13.0.0 Release 136.1.2 ATM Transport Option . 14g36.1.2.1 General 14g36.1.2.2 GTP-U . 14g36.1.2.3 U
21、DP /IP . 14g36.1.2.4 ATM Adaptation Layer Type 5 (I.363.5) 14g36.1.2.5 IP/ATM . 15g36.1.3 IP Transport Option 15g36.1.3.1 General 15g36.1.3.2 GTP-U . 15g36.1.3.3 UDP /IP . 15g36.1.3.4 Diffserv code point marking . 16g36.2 Transport network control plane 16g37 Broadcast Domain 16g37.1 Transport netwo
22、rk user plane . 16g37.1.1 General 16g37.1.2 ATM Transport Option . 16g37.1.2.1 General 16g37.1.2.2 TCP/IP. 16g37.1.2.3 ATM Adaptation Layer Type 5 (I.363.5) 17g37.1.2.4 IP/ATM . 17g37.1.3 IP Transport Option 17g37.1.3.1 General 17g37.1.3.3 TCP /IP 17g37.1.3.4 Diffserv code point marking . 17g37.2 Tr
23、ansport network control plane 17g3Annex A (informative): IP-ATM Interworking . 18g3A.1 Application of IP tunnelling in IP-ATM interworking alternative 1 in case of no direct ATM connectivity at the IP 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control.
24、 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 document. ETSI ETSI TS 125 414 V13.0.0 (2016-01)63GPP TS 25.414 version 13.0.0 Release 1
25、31 Scope The present document specifies the standards for user data transport protocols and related signalling protocols to establish user plane transport bearers over the UTRAN Iu interface. 2 References The following documents contain provisions which, through reference in this text, constitute pr
26、ovisions of the present document. References are either specific (identified by date of publication, edition number, version 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 referenc
27、e 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 the present document. 1 ITU-T Recommendation I.361 (1995-11): “B-ISDN ATM layer specification“. 2 ITU-T Recommendation I.363.2 (2000-11): “B-ISDN
28、ATM Adaptation layer specification: Type 2 AAL“. 3 ITU-T Recommendation I.363.5 (1996-08): “B-ISDN ATM Adaptation layer specification: Type 5 AAL“. 4 ITU-T Recommendation I.366.1 (1998-06): “Segmentation and Reassembly Service Specific Convergence Sublayer for the AAL type 2“. 5 ITU-T Recommendation
29、 E.164 (1997-05): “The international public telecommunication numbering plan“. 6 ITU-T Recommendation Q.2110 (1994-07): “B-ISDN ATM adaptation layer - Service Specific Connection Oriented Protocol (SSCOP)“. 7 ITU-T Recommendation Q.2140 (1995-02): “B-ISDN ATM adaptation layer - Service Specific Coor
30、dination Function for Support of Signalling at the Network Node Interface (SSCF-NNI)“. 8 ITU-T Recommendation Q.2150.1 (1999-12): “AAL type 2 signalling transport converter on broadband MTP“. 9 ITU-T Recommendation Q.2210 (1996-07): “Message transfer part level 3 functions and messages using the ser
31、vices of ITU-T Recommendation Q.2140“. 10 ITU-T Recommendation Q.2630.1 (1999-12): “AAL type 2 signalling protocol (Capability Set 1)“. 11 ITU-T Recommendation X.213 (1995-11): “Information technology - Open systems interconnection - Network Service Definitions“. 12 IETF RFC 768 (1980-08): “User Dat
32、agram Protocol“. 13 IETF RFC 791 (1981-09): “Internet Protocol“. 14 IETF RFC 2684 (1999-09): “Multiprotocol Encapsulation over ATM Adaptation Layer 5“. 15 IETF RFC 2225 (1998-04): “Classical IP and ARP over ATM“. 16 IETF RFC 2460 (1998-12): “Internet Protocol, Version 6 (IPv6) Specification“. 17 3GP
33、P TS 29.060: “General Packet Radio Service (GPRS); GPRS Tunnelling Protocol (GTP) across the Gn and Gp interface “. ETSI ETSI TS 125 414 V13.0.0 (2016-01)73GPP TS 25.414 version 13.0.0 Release 1318 IETF RFC 793 (1981-09): “Transmission Control Protocol“. 19 IETF RFC 2474 (1998-12): “Definition of th
34、e Differentiated Services Field (DS Field) in the Ipv4 and Ipv6 Headers“. 20 ITU-T Implementors guide (1999-12) for recommendation Q.2210 (1996-07). 21 ITU-T Recommendation Q.2630.2 (2000-12): “AAL type 2 signalling protocol (Capability Set 2)“. 22 IETF RFC 1889 (1996-01): “RTP: A Transport Protocol
35、 for Real Time Applications“. 23 IETF RFC 1890 (1996-01): “RTP Profile for Audio and Video Conferences with Minimal Control“. 24 3GPP TS 25.415: “UTRAN Iu Interface User Plane Protocols“ 25 IETF RFC 1661 (1994-07): “The Point-to-Point Protocol (PPP)“. 26 IETF RFC 1662 (1994-07): “PPP in HDLC-like Fr
36、aming“. 27 IETF RFC 2507 (1999-02): “IP header compression“. 28 IETF RFC 1990 (1996-08): “The PPP Multilink Protocol (MP)“. 29 IETF RFC 2686 (1996-09): “The Multi-Class Extension to Multi-Link PPP“. 30 IETF RFC 2509 (1999-02): “IP Header Compression over PPP“. 31 Void 32 IETF RFC 3153 (2001-08): “PP
37、P Multiplexing“. 33 IETF RFC 2364 (1998-07): “PPP over AAL5“. 34 IETF RFC 3031 (2001-01): “Multiprotocol Label Switching Architecture“. 35 ITU-T Recommendation E.191 (2000-03): “B-ISDN addressing“. 36 3GPP TS 25.401: “UTRAN overall description“. 3 Definitions and abbreviations 3.1 Definitions For th
38、e purposes of the present document, the following terms and definitions apply: Access Link Control Application Part (ALCAP): generic name for the transport signalling protocols used to set-up and teardown transport bearers 3.2 Abbreviations For the purposes of the present document, the following abb
39、reviations apply: AAL ATM Adaptation Layer AESA ATM End System Address ALCAP Access Link Control Application Part ARP Address Resolution Protocol ATM Asynchronous Transfer Mode CN Core Network GTP GPRS Tunnelling Protocol HDLC High-level Data Link Control IP Internet Protocol ETSI ETSI TS 125 414 V1
40、3.0.0 (2016-01)83GPP TS 25.414 version 13.0.0 Release 13LC Link Characteristics LIS Logical IP Subnet MTP3b Message Transfer Part level 3 for Q.2140 NSAP Network Service Access Point PDU Protocol Data Unit PPP Point-to-Point ProtocolRFC Request For Comment RNC Radio Network Controller RTCP Real-time
41、 Transport Control Protocol RTP Real-time Transport Protocol SA Service Area SABP Service Area Broadcast Protocol SABS Service Area Broadcast Service SAR Segmentation and Reassembly SCSF-NNI Service Specific Coordination Function-Network Node Interface SSCOP Service Specific Connection Oriented Prot
42、ocol SSCS Service Specific Convergence Sublayer SSRC Synchronisation Source TCP Transmission Control Protocol TEID Tunnel Endpoint Identifier UDP User Datagram Protocol VC Virtual Circuit 4 Data Link Layer 4.1 ATM Transport Option ATM shall be used in the transport network user plane and the transpo
43、rt network control plane according to ITU-T Recommendation I.361 1. The structure of the cell header used in the UTRAN Iu interface is the cell header format and encoding at NNI (see figure 3/I.361). 4.2 IP Transport Option An RNC/CN-node supporting IP transport option on the Iu interface shall supp
44、ort PPP protocol with HDLC framing (IETF RFC 1661 25, IETF RFC 1662 26). NOTE: This does not preclude the single implementation and use of any other protocols (e.g. PPPMux /AAL5/ ATM (IETF RFC 3153 32, IETF RFC 2364 33), PPP/AAL2/ATM, Ethernet, MPLS/ATM (IETF RFC 3031 34), etc.) fulfilling the UTRAN
45、 requirements toward the upper layers. An RNC/CN-node supporting IP transport option on the Iu interface and having interfaces connected via low bandwidth PPP links like E1/T1/J1 shall also support IP Header Compression (IETF RFC 2507 27) and the PPP extensions ML/MC-PPP (IETF RFC 1990 28, IETF RFC
46、2686 29). In this case the negotiation of header compression (IETF RFC 2507 27) over PPP shall be performed via IETF RFC 2509 30. 5 Circuit switched domain 5.1 Transport network user plane 5.1.1 General There are two options for the transport layer for data streams over Iu-CS: 1) ATM based Transport
47、 (ATM transport option) ETSI ETSI TS 125 414 V13.0.0 (2016-01)93GPP TS 25.414 version 13.0.0 Release 132) IP based Transport (IP transport option) The following figure shows the protocol stacks of the two options. AAL-2 SAR SSCS (I.366.1) AAL2 (I.363.2) Physical Layer ATM (I.361) Protocol Stack for
48、the ATM transport option UDP (RFC 768) Physical Layer Data Link Layer Protocol Stack for the IP transport option IPv6 (RFC 2460) IPv4 optional (RFC 791) RTP (RFC 1889) Figure 1. Transport network layer for data streams over Iu-CS. 5.1.2 ATM Transport Option 5.1.2.1 ATM Adaptation Layer 2 5.1.2.1.1 A
49、AL2-Segmentation and Reassembly Service Specific Convergence Sublayer (I.366.1) Service Specific Segmentation and Reassembly (SSSAR) sublayer of ITU-T Recommendation I.366.1 4 is used for the segmentation and reassembly of AAL2 SDUs (i.e., only SSSAR is used from ITU-T Recommendation I.366.1). 5.1.2.1.2 AAL2-specification (I.363.2) AAL2 shall be used according to ITU-T Recommendation I.363.2 2. 5.1.3 IP Transport Option 5.1.3.1 General In the IP transport option RTP over U
