1、 ETSI TS 129 154 V15.1.0 (2018-06) Universal Mobile Telecommunications System (UMTS); LTE; Service capability exposure functionality over Nt reference point (3GPP TS 29.154 version 15.1.0 Release 15) TECHNICAL SPECIFICATION ETSI ETSI TS 129 154 V15.1.0 (2018-06)13GPP TS 29.154 version 15.1.0 Release
2、 15Reference RTS/TSGC-0329154vf10 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 Important no
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9、9.154 version 15.1.0 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
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13、 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 may refer
14、 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.etsi.org/key
15、/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). “must“
16、and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 129 154 V15.1.0 (2018-06)33GPP TS 29.154 version 15.1.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g3Modal verbs terminology 5g31 Scope 6
17、g32 References 6g33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 7g34 Nt application . 7g34.1 Overview 7g34.2 Nt Reference Model . 8g34.3 Functional elements 8g34.3.1 PCRF 8g34.3.2 SCEF. 8g34.4 Procedures over the Nt reference point 8g34.4.1 Negotiation for future backgr
18、ound data transfer . 8g34.5 PCRF selection . 9g35 Nt protocol 9g35.1 Protocol support . 9g35.2 Initialization, maintenance and termination of connection and session 9g35.3 Nt specific AVPs 10g35.3.1 General 10g35.3.2 Network-Area-Info-List AVP . 10g35.3.3 Reference-Id AVP. 10g35.3.4 Transfer-Request
19、-Type AVP 10g35.3.5 Time-Window AVP 10g35.3.6 Transfer-End-Time AVP 11g35.3.7 Transfer-Start-Time AVP . 11g35.3.8 Transfer-Policy AVP 11g35.3.9 Transfer-Policy-Id AVP 11g35.3.10 Number-Of-UEs AVP. 11g35.4 Nt re-used AVPs . 11g35.4.1 General 11g35.4.2 Use of the Supported-Features AVP for the Nt appl
20、ication 12g35.5 Nt specific Experimental-Result-Code AVP values . 13g35.5.1 General 13g35.5.2 Success 13g35.5.3 Permanent Failures . 13g35.5.4 Transient Failures . 13g35.6 Nt messages 13g35.6.1 Command-Code Values 13g35.6.2 Background-Data-Transfer-Request (BTR) command . 14g35.6.3 Background-Data-T
21、ransfer-Answer (BTA) command . 14g3Annex A (normative): Nta application . 16g3A.1 Overview 16g3A.2 Reference Model 16g3A.3 Functional elements 16g3A.3.1 PCRF 16g3ETSI ETSI TS 129 154 V15.1.0 (2018-06)43GPP TS 29.154 version 15.1.0 Release 15A.3.2 SCEF 16g3A.4 Procedures over the Nta application . 17
22、g3A.4.1 Event Monitoring Configuration 17g3A.4.2 Event Monitoring Reporting. 17g3A.5 PCRF selection . 17g3A.6 Nta protocol 18g3A.6.1 Protocol support . 18g3A.6.2 Initialization, maintenance and termination of connection and session 18g3A.6.3 Nta specific AVPs 18g3A.6.3.1 General 18g3A.6.3.2 Access-N
23、etwork-Reports AVP . 19g3A.6.3.3 Event-Configuration . 19g3A.6.3.4 Event-Configuration-State AVP . 19g3A.6.3.5 Event-Configuration-Status AVP . 19g3A.6.3.6 Event-Reporting-Results AVP 20g3A.6.3.7 Event-Reports AVP 20g3A.6.3.8 Extended-SCEF-Reference-ID . 20g3A.6.4 Nta re-used AVPs . 20g3A.6.4.1 Gene
24、ral 20g3A.6.4.2 Use of the Supported-Features AVP for the Nt application 22g3A.6.5 Nta specific Experimental-Result-Code AVP values . 22g3A.6.6 Nta messages 22g3A.6.6.1 Command-Code Values 22g3A.6.6.2 Event-Configuration-Request (ECR) command . 23g3A.6.6.3 Event-Configuration-Answer (ECA) command .
25、23g3A.6.6.4 Event-Reporting-Request (ERR) command 23g3A.6.6.5 Event-Reporting-Answer (ERA) command 24g3Annex B (informative): Change history . 25g3History 26g3ETSI ETSI TS 129 154 V15.1.0 (2018-06)53GPP TS 29.154 version 15.1.0 Release 15Foreword This Technical Specification has been produced by the
26、 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 the TSG with an identifying change of rele
27、ase 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 incremented for all changes of substance, i.e.
28、technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 129 154 V15.1.0 (2018-06)63GPP TS 29.154 version 15.1.0 Release 151 Scope This document defines the protocol for Nt reference point. Th
29、e Nt reference point includes Nt application and Nta application. The functional requirements and the stage 2 specifications of the Nt application are contained in 3GPP TS 23.203 2. The Nt application of Nt reference point lies between Service Capability Exposure Function (SCEF) and Policy and Charg
30、ing Rules Function (PCRF), it supports the negotiation of background data transfer policy and is documented in the main body of this document. The functional requirements and the stage 2 specifications of the Nta application are contained in subclause 5.6.4.1a of 3GPP TS 23.682 x5. The Nta applicati
31、on of Nt reference point lies between SCEF and PCRF, it supports the event monitoring configuration for a group of UEs and the corresponding event reporting. The Nta application is documented in Annex A. NOTE: Nta is a stage 3 name of Diameter Application due to extensibility rule mentioned in IETF
32、RFC 6733 15. 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 number, etc.) or non-specific. - For a specific refe
33、rence, 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 document in the same Release as the present documen
34、t. 1 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 2 3GPP TS 23.203: “Policy and charging control architecture“. 3 IETF RFC 3588: “Diameter Base Protocol“. 4 IETF RFC 4006: “Diameter Credit Control Application“. 5 3GPP TS 29.214: “Policy and Charging Control over Rx reference point“. 6 3GPP
35、TS 29.274: “3GPP Evolved Packet System. Evolved GPRS Tunnelling Protocol for EPS (GTPv2)“. 7 IETF RFC 5719: “Updated IANA Considerations for Diameter Command Code Allocations “. 8 IETF RFC 2234: “Augmented BNF for syntax specifications “. 9 3GPP TS 29.213: “Policy and charging control signalling flo
36、ws and Quality of Service (QoS) parameter mapping“. 10 IETF RFC 7683: “Diameter Overload Indication Conveyance“. 11 3GPP TS 29.229: “Cx and Dx interfaces based on Diameter protocol; Protocol details“. 12 IETF RFC 7944: “Diameter Routing Message Priority“. 13 3GPP TS 29.215: “Policy and Charging Cont
37、rol (PCC) over S9 reference point; Stage 3“. 14 IETF draft-ietf-dime-load-09: “Diameter Load Information Conveyance“. Editors note: The above document cannot be formally referenced until it is published as an RFC. ETSI ETSI TS 129 154 V15.1.0 (2018-06)73GPP TS 29.154 version 15.1.0 Release 1515 IETF
38、 RFC 6733: “Diameter Base Protocol“. 16 3GPP TS 29.329: “Sh Interface based on the Diameter protocol“. 17 3GPP TS 29.336: “Home Subscriber Server (HSS) diameter interfaces for interworking with packet data networks and applications“. 18 3GPP TS 29.061: “Interworking between the Public Land Mobile Ne
39、twork (PLMN) supporting packet based services and Packet Data Networks (PDN)“. 19 3GPP TS 29.212: “Policy and Charging Control (PCC); Reference points“. 20 3GPP TS 23.682: “Architecture enhancements to facilitate communications with packet data networks and applications“. 3 Definitions and abbreviat
40、ions 3.1 Definitions For the purposes of the present document, the terms and definitions given in 3GPP 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 3GPP TR 21.905 1. 3.2 Abbreviations For the purposes of
41、 the present document, the abbreviations given in TR 21.905 1 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in 3GPP TR 21.905 1. ASP Application Service Provider BBERF Bearer Binding and Event Reporting
42、 Function BTA Background Data Transfer Answer BTR Background Data Transfer Request ECA Event Configuration Answer ECR Event Configuration RequestERA Event Reporting Answer ERR Event Reporting RequestDRA Diameter Routing Agent DRMP Diameter Routing Message Priority PCEF Policy and Charging Enforcemen
43、t Function PCRF Policy and Charging Rules Function SCEF Service Capability Exposure Function SPR Subscription Profile Repository 4 Nt application 4.1 Overview The Nt application of Nt reference point is located between the PCRF and the SCEF. It is used for reporting the transfer policies from the PC
44、RF to the SCEF. The stage 2 requirements for Nt application are defined in TS 23.203 2. Refer to Annex G of 3GPP TS 29.213 9 for Diameter overload control procedures for the Nt application. Refer to Annex J of 3GPP TS 29.213 9 for Diameter message priority mechanism procedures for the Nt application
45、. Refer to Annex K of 3GPP TS 29.213 9 for Diameter load control procedures for the Nt application. ETSI ETSI TS 129 154 V15.1.0 (2018-06)83GPP TS 29.154 version 15.1.0 Release 154.2 Nt Reference Model The Nt application of Nt reference point resides between the SCEF and PCRF. The relationship betwe
46、en the two functional entities is depicted in figure 4.2-1. The overall PCC architecture is depicted in subclause 3a of 3GPP TS 29.213 9. SCEFg3Nt applicationg3PCRFg3Figure 4.2-1: Reference model for Nt application of Nt interface NOTE: For roaming case, the SCEF is always in the H-PLMN and always c
47、ontact the H-PCRF. 4.3 Functional elements 4.3.1 PCRF The PCRF is a functional element that encompasses policy control decision and flow based charging control functionalities. The PCRF uses the information received from SCEF and other available information to determine one or more transfer policies
48、 for background data to the application service provider. The PCRF provides the selected transfer policies with a reference ID to the SPR for storage. 4.3.2 SCEF The SCEF is a functional element which provides a means to securely expose the services and capabilities provided by 3GPP network interfac
49、es. The SCEF is triggered by an SCS/AS which requests for the negotiation with the PCRF for providing necessary policy to transfer background data. 4.4 Procedures over the Nt reference point 4.4.1 Negotiation for future background data transfer Based on the SCS/AS request, the SCEF shall send the Background-Data-Transfer-Request (BTR) command to the PCRF including the Transfer-Request-Type AVP with the value TRANSFER_POLICY_REQUEST(0), it shall also include the ASP identifier within the Application-Service-Provid
