1、 ETSI TS 129 281 V15.3.0 (2018-07) Universal Mobile Telecommunications System (UMTS); LTE; General Packet Radio System (GPRS) Tunnelling Protocol User Plane (GTPv1-U) (3GPP TS 29.281 version 15.3.0 Release 15) TECHNICAL SPECIFICATION ETSI ETSI TS 129 281 V15.3.0 (2018-07)13GPP TS 29.281 version 15.3
2、.0 Release 15Reference RTS/TSGC-0429281vf30 Keywords LTE,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 Im
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9、23GPP TS 29.281 version 15.3.0 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
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13、Mention of those trademarks 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
14、 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, 3GPP and ETSI identities can be found under http:/webapp.et
15、si.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
16、). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 129 281 V15.3.0 (2018-07)33GPP TS 29.281 version 15.3.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g32 References 6g
17、33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 7g34 General . 9g34.1 GTP Path 9g34.2 GTP-U Tunnels 9g34.2.1 GTP-U Tunnel description 9g34.2.2 IP transport 9g34.2.3 GTP-U Tunnel IP transport . 9g34.2.4 Ingress GTP tunnel (GTPv1-U sending endpoint) 10g34.2.5 Egress GTP tu
18、nnel (GTPv1-U receiving endpoint) 10g34.2.6 MBMS IP Multicast Distribution of the User Plane Data . 10g34.3 GTP-U Protocol Entity . 10g34.3.0 General 10g34.3.1 Handling of Sequence Numbers . 11g34.4 Protocol stack . 11g34.4.0 GTP-PDU Stacks 11g34.4.1 UDP/IP 12g34.4.2 UDP header and port numbers 12g3
19、4.4.2.0 General 12g34.4.2.1 Echo Request Message 12g34.4.2.2 Echo Response Message . 12g34.4.2.3 Encapsulated T-PDUs . 12g34.4.2.4 Error Indication . 12g34.4.2.5 Supported Extension Headers Notification . 12g34.4.2.6 End Marker . 12g34.4.3 IP header and IP addresses 13g34.4.3.1 Echo Request Message
20、13g34.4.3.2 Echo Response Message . 13g34.4.3.3 Encapsulated T-PDUs . 13g34.4.3.4 Error Indication . 13g34.4.3.5 Supported Extension Headers Notification . 13g34.4.3.6 End Marker . 13g34.5 Transmission Order and Bit Definitions . 13g34.6 New Functionality 13g35 GTP-U header 14g35.1 General format 14
21、g35.2 GTP-U Extension Header . 15g35.2.1 General format of the GTP-U Extension Header 15g35.2.2 Extension Header types 17g35.2.2.1 UDP Port . 17g35.2.2.2 PDCP PDU Number 17g35.2.2.2A Long PDCP PDU Number 18g35.2.2.3 Service Class Indicator 18g35.2.2.4 RAN Container . 19g35.2.2.5 Xw RAN Container . 2
22、0g35.2.2.6 NR RAN Container . 20g35.2.2.7 PDU Session Container . 20g3ETSI ETSI TS 129 281 V15.3.0 (2018-07)43GPP TS 29.281 version 15.3.0 Release 156 GTP-U Message Formats . 21g36.1 General . 21g36.2 Presence requirements of Information Elements 21g37 GTP-U Messages 22g37.1 General . 22g37.2 Path M
23、anagement Messages. 22g37.2.1 Echo Request 22g37.2.2 Echo Response 22g37.2.3 Supported Extension Headers Notification . 23g37.3 Tunnel Management Messages 23g37.3.1 Error Indication . 23g37.3.2 End Marker . 23g38 Information Elements . 24g38.1 Information Element Types 24g38.2 Recovery. 25g38.3 Tunn
24、el Endpoint Identifier Data I 25g38.4 GTP-U Peer Address 25g38.5 Extension Header Type List . 26g38.6 Private Extension 26g39 Error Handling 26g39.1 Protocol Errors . 26g39.2 Path Failure 26g310 Security. 27g311 Reliable Delivery of Signalling Messages . 27g312 GTP Parameters 27g312.1 General . 27g3
25、12.2 Timers 27g312.3 Others . 27g313 Tunnelling Scenarios 27g313.1 General . 27g313.2 Tunnelling between SGWs . 27g313.3 Transfer of the user plane data between PDN GWs . 28g313.4 Tunnelling between SGSNs . 28g313.5 Tunnelling between Source RNC and Target RNC 28g313.6 Transfer of the user plane dat
26、a between GGSNs 28g313.7 Tunnelling between RNC and eNodeB 28g313.8 Tunnelling between SGSN and eNodeB 28g313.9 Tunnelling between Source eNodeB and Target eNodeB 28g313.10 Tunnelling between SGSN and RNC . 28g313.11 Tunnelling between SGSN and SGW 29g313.12 Tunnelling between SGW and eNodeB 29g313.
27、13 Tunnelling between SGW and RNC 29g313.14 Tunnelling between SGW and SGSN 29g3Annex A (Normative): PDU session user plane protocol over N9 30g3Annex B (informative): Change history . 31g3History 33g3ETSI ETSI TS 129 281 V15.3.0 (2018-07)53GPP TS 29.281 version 15.3.0 Release 15Foreword This Techni
28、cal 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 following formal TSG approval. Should the TSG modify the contents of the present document, it will be re-released by
29、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 TSG for approval; 3 or greater indicates TSG approved document under change control. y the second digit is incre
30、mented 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 129 281 V15.3.0 (2018-07)63GPP TS 29.281 version 15.3.0 Release 151 Scope The present documen
31、t defines the user plane of GTP used on: - the Gn and Gp interfaces of the General Packet Radio Service (GPRS); - the Iu, Gn and Gp interfaces of the UMTS system; - the S1-U, S11-U, S2a, S2b, X2, S4, S5, S8, S12, M1 and Sn interfaces of the Evolved Packet System (EPS); - the Xn, N3 and N9 interfaces
32、 of the 5G System (5GS); This definition ensures full backwards compatibility with RNC, SGSN and GGSN implementations according to release 7 of 3GPP TS 29.060 6. NOTE: Releases previous to Release-8 have used 3GPP TS 29.060 6 as normative definition of the user plane of GTP. This shall be considered
33、 when essential corrections are included in the present document or in pre-release-8 version of 3GPP TS 29.060 6. Fallback from GTPv1-U to GTPv0-U shall not be supported. Therefore, 3GPP Rel-8 and onwards GTPv1-U entity should not listen to the well-known GTPv0 port 3386. If GTPv1 entity listens to
34、the GTPv0 port, the entity shall silently discard any received GTPv0-U message. 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 n
35、umber, 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 reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest
36、version of that document in the same Release as the present document. 1 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 2 3GPP TS 23.003: “Numbering, addressing and identification“. 3 3GPP TS 23.007: “Restoration procedures“. 4 3GPP TS 23.060: “General Packet Radio Service (GPRS); Service desc
37、ription; Stage 2“. 5 3GPP TS 23.401: “General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access“. 6 3GPP TS 29.060: “General Packet Radio Service (GPRS); GPRS Tunnelling Protocol (GTP) across the Gn and Gp interface“. 7 3GPP TS 29.274: “
38、3GPP Evolved Packet System; Evolved GPRS Tunnelling Protocol for EPS (GTPv2)“. 8 3GPP TS 32.295: “Telecommunication management; Charging management; Charging Data Record (CDR) transfer“. 9 IETF RFC 768 (STD 0006): “User Datagram Protocol“, J. Postel. 10 IETF RFC 791 (STD 0005): “Internet Protocol“,
39、J. Postel. 11 IETF RFC 4291: “IP Version 6 Addressing Architecture“. 12 3GPP TS 33.210: “3G security; Network Domain Security (NDS); IP network layer security“. ETSI ETSI TS 129 281 V15.3.0 (2018-07)73GPP TS 29.281 version 15.3.0 Release 1513 3GPP TS 23.121: “Architectural requirements for Release 1
40、999“. 14 3GPP TS 43.129: “Packet-switched handover for GERAN A/Gb mode; Stage 2“. 15 IETF RFC 2460: “Internet Protocol, Version 6 (IPv6) Specification“, Standards Track 16 3GPP TS 25.413: “UTRAN Iu interface RANAP signalling“. 17 3GPP TS 36.300: “Evolved Universal Terrestrial Radio Access (E-UTRA) a
41、nd Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2“. 18 3GPP TS 23.246: “Multimedia Broadcast/Multicast Service (MBMS); Architecture and functional description; Stage 2“. 19 IETF RFC 4604 (2006): “Using Internet Group Management Protocol Version 3 (IGMPv3)
42、and Multicast Listener Discovery Protocol Version 2 (MLDv2) for Source-Specific Multicast“. 20 IETF RFC 4607 (2006): “Source-Specific Multicast for IP“. 21 3GPP TS 33.102: “3G Security; Security architecture“. 22 3GPP TS 33.401: “3GPP System Architecture Evolution (SAE): Security architecture “. 23
43、3GPP TS 23.402: “Architecture enhancements for non-3GPP accesses“. 24 3GPP TS 36.323: “Evolved Universal Terrestrial Radio Access (E-UTRA); Packet Data Convergence Protocol (PDCP) specification“. 25 3GPP TS 36.425: “E-UTRAN X2 interface user plane protocol“. 26 IETF RFC 2474, “Definition of the Diff
44、erentiated Services Field (DS Field) in the IPv4 and IPv6 Headers“. 27 3GPP TS 36.465: “Evolved Universal Terrestrial Radio Access (E-UTRAN) and Wireless LAN (WLAN) Xw interface user plane protocol“. 28 3GPP TS 23.501: “System Architecture for the 5G System; Stage 2“. 29 3GPP TS 23.502: “Procedures
45、for the 5G System; Stage 2“. 30 3GPP TS 38.425: “NG-RAN; NR user plane protocol“. 31 3GPP TS 38.415: “NG-RAN; PDU Session User Plane Protocol“. 32 3GPP TS 33.250: “Security assurance specification for the PGW network product class“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of
46、 the present document, the terms and definitions given in TR 21.905 1 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905 1. GTP-U peer: node implementing at least one side of any of the GTP user plane based prot
47、ocols. RNC, SGSN, GGSN, eNodeB, SGW, ePDG, gNB, N3IWF, UPF, PGW or TWAN or MME. Trusted WLAN Access Network: see 3GPP TS 23.402 23. 3.2 Abbreviations For the purposes of the present document, the abbreviations given in TR 21.905 1 and the following apply. An abbreviation defined in the present docum
48、ent takes precedence over the definition of the same abbreviation, if any, in TR 21.905 1. ETSI ETSI TS 129 281 V15.3.0 (2018-07)83GPP TS 29.281 version 15.3.0 Release 15Common Tunnel Endpoint Identifier (C-TEID): Unambiguously identifies a tunnel endpoint in the receiving GTP-U protocol entity for
49、a given UDP/IP endpoint. The sending end side of a GTP tunnel locally assigns the C-TEID value used in the TEID field and signals it to the destination Tunnel Endpoint using a control plane message. GTP-U Message: GTP-U (user plane) messages are either user plane messages or signalling messages. User plane messages are used to carry user data packets between GTP-U entities. Signalling messages are sent between network nodes for path management and tunnel management. GTP-U Tunnel: A GTP-U tunnel is
