1、 ETSI TS 125 414 V15.0.0 (2018-07) Universal Mobile Telecommunications System (UMTS); UTRAN Iu interface data transport and transport signalling (3GPP TS 25.414 version 15.0.0 Release 15) TECHNICAL SPECIFICATION ETSI ETSI TS 125 414 V15.0.0 (2018-07)13GPP TS 25.414 version 15.0.0 Release 15Reference
2、 RTS/TSGR-0325414vf00 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
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9、.0.0 Release 15Intellectual 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
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13、s in the present 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 sp
14、ecifications 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, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.asp.
15、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“ a
16、re NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 125 414 V15.0.0 (2018-07)33GPP TS 25.414 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g32 References 6g33 Definitions and abbrevi
17、ations . 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 . 8g35.1.1 General 8g35.1.2 ATM Transport Option . 9g35.1.2.1 ATM Adaptation Layer 2 9g35.1.2.1.1 AAL2-S
18、egmentation 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 RTP . 10g35.1.3.3.1 RTP Header . 10g35.1.3.3.1.4 Contributing Source (CSRC) count . 10g35.1.3.3.1.5 Marker
19、 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) 10g35.1.3.3.1.10 CSRC list . 10g35.1.3.3.2 RTP Payload 10g35.1.3.4 RTCP . 11g35.1.3.5 Diffserv code point marking . 11g35.2 Transport network control plane 11
20、g35.2.1 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 transport converter . 12g35.2.2.2.1 AAL2 MTP3B Signalling Transport Converter (Q.2150.1) 12g35.2.2.3 MTP3b
21、(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) 12g35.3 Interworking between ATM and IP Transport Options 12g35.3.1 Introduction. 12g35.3.2 Interworking Alternatives . 12g36 Packet switched domain . 13g36.1 Transport network u
22、ser plane . 13g36.1.1 General 13g36.1.2 ATM Transport Option . 13g36.1.2.1 General 13g3ETSI ETSI TS 125 414 V15.0.0 (2018-07)43GPP TS 25.414 version 15.0.0 Release 156.1.2.2 GTP-U . 13g36.1.2.3 UDP /IP . 13g36.1.2.4 ATM Adaptation Layer Type 5 (I.363.5) 14g36.1.2.5 IP/ATM . 14g36.1.3 IP Transport Op
23、tion 14g36.1.3.1 General 14g36.1.3.2 GTP-U . 14g36.1.3.3 UDP /IP . 14g36.1.3.4 Diffserv code point marking . 15g36.2 Transport network control plane 15g37 Broadcast Domain 15g37.1 Transport network user plane . 15g37.1.1 General 15g37.1.2 ATM Transport Option . 15g37.1.2.1 General 15g37.1.2.2 TCP/IP
24、. 15g37.1.2.3 ATM Adaptation Layer Type 5 (I.363.5) 16g37.1.2.4 IP/ATM . 16g37.1.3 IP Transport Option 16g37.1.3.1 General 16g37.1.3.3 TCP /IP 16g37.1.3.4 Diffserv code point marking . 16g37.2 Transport network control plane 16g3Annex A (informative): IP-ATM Interworking 17g3A.1 Application of IP tu
25、nnelling 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. y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections,
26、updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 125 414 V15.0.0 (2018-07)63GPP TS 25.414 version 15.0.0 Release 151 Scope The present document specifies the standards for user data transport protocols and related signall
27、ing 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 provisions of the present document. g404 References are either specific (identified by date of publication, e
28、dition number, version number, etc.) or non-specific. g404 For 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
29、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 ATM Adaptation layer specification: Type 2 AAL“. 3 ITU-T Recommendation I.363.5 (1996-08): “
30、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 E.164 (1997-05): “The international public telecommunication numbering plan“. 6 ITU-T Recom
31、mendation 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 Coordination Function for Support of Signalling at the Network Node Interface (SSCF-NNI)“. 8 ITU
32、-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 services of ITU-T Recommendation Q.2140“. 10 ITU-T Recommendation Q.2630.1 (1999-12): “AAL type
33、 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 Datagram Protocol“. 13 IETF RFC 791 (1981-09): “Internet Protocol“. 14 IETF RFC 2684 (1999-09):
34、 “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 3GPP TS 29.060: “General Packet Radio Service (GPRS); GPRS Tunnelling Protocol (GTP) across the
35、 Gn and Gp interface “. 18 IETF RFC 793 (1981-09): “Transmission Control Protocol“. ETSI ETSI TS 125 414 V15.0.0 (2018-07)73GPP TS 25.414 version 15.0.0 Release 1519 IETF RFC 2474 (1998-12): “Definition of the Differentiated Services Field (DS Field) in the Ipv4 and Ipv6 Headers“. 20 ITU-T Implement
36、ors 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 for Real Time Applications“. 23 IETF RFC 1890 (1996-01): “RTP Profile for Audio and Video C
37、onferences 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 Framing“. 27 IETF RFC 2507 (1999-02): “IP header compression“. 28 IETF RFC 1990 (1996-08): “Th
38、e 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): “PPP Multiplexing“. 33 IETF RFC 2364 (1998-07): “PPP over AAL5“. 34 IETF RFC 3031 (2001-01): “M
39、ultiprotocol 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 the purposes of the present document, the following terms and definitions apply: Access Link C
40、ontrol 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 abbreviations apply: AAL ATM Adaptation Layer AESA ATM End System Address ALCAP Access Link Con
41、trol 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 LC Link CharacteristicsLIS Logical IP Subnet MTP3b Message Transfer Part level 3 for Q.2140 NSAP Network Service Ac
42、cess Point ETSI ETSI TS 125 414 V15.0.0 (2018-07)83GPP TS 25.414 version 15.0.0 Release 15PDU Protocol Data Unit PPP Point-to-Point ProtocolRFC Request For Comment RNC Radio Network Controller RTCP Real-time Transport Control Protocol RTP Real-time Transport Protocol SA Service Area SABP Service Are
43、a 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 Protocol SSCS Service Specific Convergence Sublayer SSRC Synchronisation Source TCP Transmission
44、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 transport network control plane according to ITU-T Recommendation I.361 1. The structure of the cell
45、 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 support PPP protocol with HDLC framing (IETF RFC 1661 25, IETF RFC 1662 26). NOTE: This does not
46、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 requirements toward the upper layers. An RNC/CN-node supporting IP transport option on the I
47、u 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 2686 29). In this case the negotiation of header compression (IETF RFC 2507 27) over PPP shal
48、l 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 (ATM transport option) 2) IP based Transport (IP transport option) The following figure show
49、s the protocol stacks of the two options. ETSI ETSI TS 125 414 V15.0.0 (2018-07)93GPP TS 25.414 version 15.0.0 Release 15AAL-2 SAR SSCS (I.366.1) AAL2 (I.363.2) Physical Layer ATM (I.361) Protocol Stack for 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
