1、 ETSI TS 1Universal Mobile TelPolicy andCongestion rep(3GPP TS 29.2TECHNICAL SPECIFICATION129 217 V13.3.0 (2016elecommunications System (LTE; nd Charging Control (PCC); eporting over Np reference po.217 version 13.3.0 Release 1316-05) (UMTS); point 13) ETSI ETSI TS 129 217 V13.3.0 (2016-05)13GPP TS
2、29.217 version 13.3.0 Release 13Reference RTS/TSGC-0329217vd30 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 Grass
3、e (06) N 7803/88 Important notice 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 with
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6、one of the following services: 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 cont
7、ent of the PDF version shall not 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 M
8、arks of ETSI registered for the 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 129 217 V13.3.0 (2016-05)23
9、GPP TS 29.217 version 13.3.0 Release 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
10、ETSI SR 000 314: “Intellectual 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,
11、no investigation, including 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. Foreword This Technica
12、l Specification (TS) has been produced 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 de
13、liverables. The cross reference 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 in
14、terpreted 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 ETSI deliverables except when used in direct citation. ETSI ETSI TS 129 217 V13.3.0 (2016-05)33GPP TS 29.217 version 13.3.0 Release 13Contents Int
15、ellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g32 References 6g33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 7g34 Np reference point 7g34.1 Overview 7g34.2 Np reference model 8g34.3 Functional elements 8g34.3.1 RCAF 8g34.3
16、.2 PCRF 9g34.3.3 H-PCRF 9g34.3.4 V-PCRF 9g34.4 Procedures over Np reference point . 9g34.4.1 RUCI Report . 9g34.4.1.1 General 9g34.4.1.2 Non-aggregated RUCI report 10g34.4.1.3 Aggregated RUCI report . 10g34.4.2 Reporting Restriction Provisioning . 10g34.4.3 UE mobility between RCAFs . 11g34.4.4 Remo
17、val of UE context . 11g34.4.5 Race condition handling . 12g35 Np protocol . 12g35.1 Protocol support . 12g35.2 Initialization, maintenance and termination of connection and session 12g35.3 Np specific AVPs . 12g35.3.1 General 12g35.3.2 Aggregated-Congestion-Info AVP . 13g35.3.3 Aggregated-RUCI-Repor
18、t AVP 13g35.3.4 Congestion-Level-Definition AVP . 13g35.3.5 Congestion-Level-Range AVP . 14g35.3.6 Congestion-Level-Set-Id AVP 14g35.3.7 Congestion-Level-Value AVP 14g35.3.8 Congestion-Location-Id AVP . 14g35.3.9 Conditional-Restriction AVP 15g35.3.10 eNodeB-ID AVP . 15g35.3.11 IMSI-List AVP . 15g35
19、.3.12 RCAF-Id AVP 16g35.3.13 Reporting-Restriction AVP . 16g35.3.14 RUCI-Action AVP 16g35.4 Np re-used AVPs 16g35.4.1 General 16g35.4.2 Use of the Supported-Features AVP on the Np reference point . 17g35.5 Np specific Experimental-Result-Code AVP values 18g35.5.1 General 18g35.5.2 Success 18g35.5.3
20、Permanent Failures . 18g35.5.4 Transient Failures . 18g3ETSI ETSI TS 129 217 V13.3.0 (2016-05)43GPP TS 29.217 version 13.3.0 Release 135.6 Np messages . 18g35.6.1 Non-Aggregated-RUCI-Report-Request (NRR) command 18g35.6.2 Non-Aggregated-RUCI-Report-Answer (NRA) command 19g35.6.3 Aggregated-RUCI-Repo
21、rt-Request (ARR) command 19g35.6.4 Aggregated-RUCI-Report-Answer (ARA) command 19g35.6.5 Modify-Uecontext-Request (MUR) command . 20g35.6.6 Modify-Uecontext-Answer (MUA) command . 20g3Annex A (informative): Change history . 22g3History 23g3ETSI ETSI TS 129 217 V13.3.0 (2016-05)53GPP TS 29.217 versio
22、n 13.3.0 Release 13Foreword This Technical 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 prese
23、nt document, it will be re-released by 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 chan
24、ge control. 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 129 217 V13.3.0 (2016-05)63GPP TS 29.217 version 13.3.
25、0 Release 131 Scope The present document provides the stage 3 specification of the Np reference point. The functional requirements and the stage 2 specifications of the Np reference point are contained in 3GPP TS 23.203 2. The Np reference point lies between the RAN Congestion Awareness Function (RC
26、AF) and the Policy and Charging Rules Function (PCRF) for the non-roaming case, between the RCAF and the H-PCRF for the home-routed scenario and between the RCAF and the V-PCRF for the visited access scenario. NOTE: If not specified explicitly, the PCRF also means H-PCRF for the home-routed scenario
27、 or V-PCRF in the visited access scenario in the specification. 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 n
28、umber, 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 version of that
29、document in the same Release as the present document. 1 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 2 3GPP TS 23.203: “Policy and charging control architecture“. 3 3GPP TS 29.213: “Policy and Charging Control signalling flows and QoS parameter mapping“. 4 IETF RFC 4005: “Diameter Network A
30、ccess Server Application“. 5 IETF RFC 4006: “Diameter Credit Control Application“. 6 3GPP TS 29.229: “Cx and Dx interfaces based on Diameter protocol; Protocol details“. 7 IETF RFC 3588: “Diameter Base Protocol“. 8 3GPP TS 23.401: “GPRS enhancements for E-UTRAN access“. 9 3GPP TS 23.060: “General Pa
31、cket Radio Service (GPRS); Service description; Stage 2“. 10 3GPP TS 29.215: “Policy and Charging Control (PCC) over S9 reference point; Stage 3“. 11 3GPP TS 29.061: “Interworking between the Public Land Mobile Network (PLMN) supporting packet based services and Packet Data Networks (PDN)“. 12 3GPP
32、TS 29.274: “3GPP Evolved Packet System. Evolved GPRS Tunnelling Protocol for EPS (GTPv2)“. 13 ITU-T Recommendation E.212: “The international identification plan for mobile terminals and mobile users“. 14 3GPP TS 29.212: “Policy and Charging Control (PCC); Reference points“. 15 IETF RFC 7683:“Diamete
33、r Overload Indication Conveyance“. 16 IETF draft-ietf-dime-drmp-02: “Diameter Routing Message Priority“. Editors note: The above document cannot be formally referenced until it is published as an RFC. ETSI ETSI TS 129 217 V13.3.0 (2016-05)73GPP TS 29.217 version 13.3.0 Release 133 Definitions and ab
34、breviations 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. Home Routed Access: Roaming sc
35、enario where the PCEF is located in the HPLMN. In a Home Routed roaming scenario, the UE obtains access to the packet data network from the HPLMN. RAN user plane congestion: RAN user plane congestion occurs when the demand for RAN resources exceeds the available RAN capacity to deliver the user data
36、 for a prolonged period of time. NOTE: Short-duration traffic bursts is a normal condition at any traffic load level, and is not considered to be RAN user plane congestion. Likewise, a high-level of utilization of RAN resources (based on operator configuration) is considered a normal mode of operati
37、on and might not be RAN user plane congestion. Visited Access (also known as local breakout): Roaming scenario where the PCEF is located in the VPLMN. In a Visited Access Roaming scenario, the UE obtains access to the packet data network from the VPLMN. 3.2 Abbreviations For the purposes of the pres
38、ent document, the abbreviations given in 3GPP 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. AF Application Function ARR Aggregated RUCI Report Request ARA Aggregated RUC
39、I Report Answer DRMP Diameter Routing Message Priority H-PCRF Home PCRF MUR Modify Uecontext Request MUA Modify Uecontext Answer NRR Non-Aggregated RUCI Report Request NRA Non-Aggregated RUCI Report Answer PCC Policy and Charging Control PCRF Policy and Charging Rule Function RCAF RAN Congestion Awa
40、reness Function RUCI RAN User Plane Congestion Information V-PCRF Visited PCRF 4 Np reference point 4.1 Overview The Np reference point is located between the RCAF and the PCRF for the non-roaming scenario, between the RCAF and the H-PCRF for the home-routed scenario and between the RCAF and the V-P
41、CRF for the visited access scenario. The Np reference point is used for: - Reporting the RUCI from the RCAF to the PCRF; - Provisioning the Reporting Restriction from the PCRF to the RCAF; - The User Equipment (UE) mobility between RCAFs; - The removal of the UE context in the RCAF. ETSI ETSI TS 129
42、 217 V13.3.0 (2016-05)83GPP TS 29.217 version 13.3.0 Release 13The stage 2 level requirements for the Np reference point are defined in 3GPP TS 23.203 2. Signalling flows related to Np interface are specified in 3GPP TS 29.213 3. Refer to Annex G of 3GPP TS 29.213 3 for Diameter overload control pro
43、cedures over the Np interface. Refer to Annex J of 3GPP TS 29.213 3 for Diameter message priority mechanism procedures over the Np interface. 4.2 Np reference model The relationships between the involved functional entities are depicted in figure 4.2.1. The overall PCC architecture is depicted in cl
44、ause 3a of 3GPP TS 29.213 3 . PCRFg3Npg3RCAFg3Figure 4.2.1: Np reference model NOTE: For the home-routed access scenario, the RCAF interacts with the H-PCRF. For the visited access scenario, the RCAF interacts with the V-PCRF. Figure 4.2.2: Void Figure 4.2.3: Void 4.3 Functional elements 4.3.1 RCAF
45、The RCAF is a functional element which reports RAN User Plane Congestion Information (RUCI) via the Np interface to the PCRF to enable the PCRF to take the RAN user plane congestion status into account for policy decisions. RUCI includes the following information: - The user id (e.g. IMSI) identifyi
46、ng the UE impacted by congestion; - PDN ID for which congestion information is reported; - Congestion level information (either congestion level value or congestion level set id) of the UE impacted by congestion; - eNodeB identifier, ECGI or SAI identifying the eNodeB, E-UTRAN cell or Service Area r
47、espectively, serving the UE if a conditional restriction to restrict location reporting is not enabled. NOTE 1: In case of E-UTRAN, whether the eNodeB identifier or the ECGI are included in the RUCI is up to operator configuration in the RCAF. The RCAF sends the RUCI to the PCRFs serving the UEs PDN
48、 connections as follows: - For a PDN connection in a non-roaming scenario the RCAF reports the RUCI to the PCRF; - For a PDN connection in a local breakout scenario, based on operator configuration, the RCAF reports the RUCI to the V-PCRF; - For a PDN connection in a home routed scenario, based on t
49、he roaming agreement with the HPLMN and operator configuration, the RCAF reports the RUCI to the H-PCRF NOTE 2: Reporting of congestion information to the HPLMN may be used e.g. in case of a group of PLMNs which belong to a single business entity. ETSI ETSI TS 129 217 V13.3.0 (2016-05)93GPP TS 29.217 version 13.3.0 Release 13The RCAF determines whether a given PDN connection is served in a local breakout or a home routed roaming scenario based on the APN operator identifier received as part of the APN information from the
