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TECHNICAL SPECIFICATION
5G;
5G System;
Policy and Charging Control signalling flows and QoS
parameter mapping;
Stage 3
(3GPP TS 29.513 version 15.1.0 Release 15)
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3GPP TS 29.513 version 15.1.0 Release 15 1 ETSI TS 129 513 V15.1.0 (2018-10)
Reference
RTS/TSGC-0329513vf10
Keywords
5G
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3GPP TS 29.513 version 15.1.0 Release 15 2 ETSI TS 129 513 V15.1.0 (2018-10)
Intellectual Property Rights
Essential patents
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Foreword
This Technical 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 deliverables.
The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under
.
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" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI
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3GPP TS 29.513 version 15.1.0 Release 15 3 ETSI TS 129 513 V15.1.0 (2018-10)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 5
1 Scope . 6
2 References . 6
3 Definitions, symbols and abbreviations . 7
3.1 Definitions . 7
3.2 Abbreviations . 7
4 Reference architecture . 8
5 Signalling Flows for the Policy Framework . 12
5.1 AM Policy Association Management . 12
5.1.1 AM Policy Association Establishment . 12
5.1.2 AM Policy Association Modification . 14
5.1.2.1 AM Policy Association Modification initiated by the AMF . 14
5.1.2.2 AM Policy Association Modification initiated by the PCF . 15
5.1.3 AM Policy Association Termination . 17
5.1.3.1 AM Policy Association Termination initiated by the AMF . 17
5.1.3.2 AM Policy Association Termination initiated by the PCF . 18
5.2 SM Policy Association Management . 19
5.2.1 SM Policy Association Establishment . 19
5.2.2 SM Policy Association Modification . 21
5.2.2.1 General . 21
5.2.2.2 SM Policy Association Modification initiated by the PCF . 21
5.2.2.2.1 Interactions between SMF, PCF and CHF. 21
5.2.2.2.2 Interactions between PCF, AF and UDR . 22
5.2.2.2.2.1 AF Session Establishment . 22
5.2.2.2.2.2 AF Session Modification . 23
5.2.2.2.2.3 AF Session Termination . 25
5.2.2.3 SM Policy Association Modification initiated by the SMF . 26
5.2.3 SM Policy Association Termination . 28
5.2.3.1 SM Policy Association Termination initiated by the SMF. 28
5.2.3.2 SM Policy Association Termination initiated by the PCF . 30
5.3 Spending Limit Procedures . 31
5.3.1 General . 31
5.3.2 Initial Spending Limit Report Request . 31
5.3.3 Intermediate Spending Limit Report Request . 32
5.3.4 Final Spending Limit Report Request . 33
5.3.5 Spending Limit Report. 33
5.4 Network Data Analytics Procedures . 34
5.4.1 General . 34
5.4.2 Network data analytics Subscribe/Unsubscribe . 34
5.4.3 Network data analytics info request . 35
5.5 Service Capability Exposure Procedures . 36
5.5.1 General . 36
5.5.2 Management of Packet Flow Descriptions . 36
5.5.2.1 AF-initiated PFD management procedure . 36
5.5.2.2 PFDF management towards SMF . 38
5.5.2.2.1 PFD retrieval . 38
5.5.2.2.2 PFD management . 38
5.5.3 Traffic influence procedures . 39
5.5.3.1 General . 39
5.5.3.2 AF requests targeting an individual UE address . 40
5.5.3.3 AF requests targeting PDU Sessions not identified by an UE address . 42
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3GPP TS 29.513 version 15.1.0 Release 15 4 ETSI TS 129 513 V15.1.0 (2018-10)
5.5.4 Negotiation for future background data transfer procedure . 44
6 Binding Mechanism . 45
6.1 Overview . 45
6.2 Session Binding . 45
6.3 PCC rule Authorization . 46
6.4 QoS flow binding . 47
7 QoS Parameters Mapping . . 47
7.1 Overview . 47
7.2 QoS parameter mapping Functions at AF . 49
7.2.1 Introduction. 49
7.2.2 AF supporting Rx interface . 50
7.2.3 AF supporting N5 interface . 50
7.3 QoS parameter mapping Functions at PCF . 50
7.3.1 Introduction. 50
7.3.2 PCF Interworking with an AF supporting Rx interface . 50
7.3.3 PCF Interworking with an AF supporting N5 interface . 57
7.4 QoS parameter mapping Functions at SMF . 63
8 PCF addressing . 63
8.1 General . 63
8.2 PCF discovery and selection by the AMF . 63
8.3 PCF discovery and selection by the SMF . 64
8.4 PCF discovery and selection by the AF. 64
8.4.1 General . 64
8.4.2 Binding Support Function (BSF) . 64
8.5 BSF procedures . 65
8.5.1 General . 65
8.5.2 Binding information Creation . 65
8.5.3 Binding information Deletion . 66
8.5.4 Binding information Retrieval . 66
8.5.5 Proxy BSF . 67
8.5.5.1 General . 67
8.5.5.2 Rx Session Establishment . 67
8.5.5.3 Rx Session Modification . 67
8.5.5.3.1 AF-initiated . 67
8.5.5.3.2 PCF-initiated . 68
8.5.5.4 Rx Session Termination . 68
8.5.5.4.1 AF-initiated . 68
8.5.5.4.2 PCF-initiated . 69
8.5.6 Redirect BSF . 69
8.5.6.1 General . 69
8.5.6.2 Rx Session Establishment . 70
Annex A (informative): DRA and BSF coexistence . 71
Annex B (informative): Change history . 72
History . 73
ETSI
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3GPP TS 29.513 version 15.1.0 Release 15 5 ETSI TS 129 513 V15.1.0 (2018-10)
Foreword
This Technical Specification has been produced by the 3rd Generation 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 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 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
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3GPP TS 29.513 version 15.1.0 Release 15 6 ETSI TS 129 513 V15.1.0 (2018-10)
1 Scope
The present document specifies detailed call flows of Policy and Charging Control (PCC) over the Npcf, Nsmf, Namf,
Nudr, Nnef and Nnwdaf service-based interfaces and their relationship with the flow level signalling in 5G system.
NOTE: The call flows depicted in this Technical Specification do not cover all traffic cases.
The stage 2 definition and procedures of PCC are contained in 3GPP TS 23.502 [3] and 3GPP TS 23.503 [4]. The 5G
System Architecture is defined in 3GPP TS 23.501 [2].
Detailed stage 3 procedures are provided in 3GPP TS 29.507 [7], 3GPP TS 29.508 [8], 3GPP TS 29.512 [9],
3GPP TS 29.514 [10], 3GPP TS 29.520 [11], 3GPP TS 29.519 [12] 3GPP TS 29.521 [22], 3GPP TS 29.594 [23],
3GPP TS 29.522 [24], 3GPP TS 29.551 [25] and 3GPP TS 29.554 [26].
The Technical Realization of the Service Based Architecture and the Principles and Guidelines for Services Definition
of the 5G System are specified in 3GPP TS 29.500 [5] and 3GPP TS 29.501 [6].
The present specification also describes the PCC reference architectures for non-roaming and roaming scenarios in 5G
system.
The present specification also describes the mapping of QoS parameters at AF, PCF and SMF.
The present specification also describes the session binding at PCF, and the QoS flow binding at SMF.
The present specification also describes the PCF addressing.
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 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 document in the same
Release as the present document.
[1] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications".
[2] 3GPP TS 23.501: "System Architecture for the 5G System; Stage 2".
[3] 3GPP TS 23.502: "Procedures for the 5G System; Stage 2".
[4] 3GPP TS 23.503: "Policy and Charging Control Framework for the 5G System; Stage 2".
[5] 3GPP TS 29.500: "5G System; Technical Realization of Service Based Architecture; Stage 3".
[6] 3GPP TS 29.501: "5G System; Principles and Guidelines for Services Definition; Stage 3".
[7] 3GPP TS 29.507: "5G System; Access and Mobility Policy Control Service; Stage 3".
[8] 3GPP TS 29.508: "5G System; Session Management Event Exposure Service; Stage 3".
[9] 3GPP TS 29.512: "5G System; Session Management Policy Control Service; Stage 3".
[10] 3GPP TS 29.514: "5G System; Policy Authorization Service; Stage 3".
[11] 3GPP TS 29.520: "5G System; Network Data Analytics Services; Stage 3".
[12] 3GPP TS 29.519: "5G System; Usage of the Unified Data Repository Service for Policy Data,
Application Data and Structured Data for Exposure; Stage 3".
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3GPP TS 29.513 version 15.1.0 Release 15 7 ETSI TS 129 513 V15.1.0 (2018-10)
[13] 3GPP TS 23.203: "Policies and Charging control architecture; Stage 2".
[14] 3GPP TS 26.114: "IP Multimedia Subsystem (IMS); Multimedia Telephony; Media handling and
interaction".
[15] 3GPP TS 29.201: "Representational State Transfer (REST) reference point between Application
Function (AF) and Protocol Converter (PC)".
[16] IETF RFC 4566: "SDP: Session Description Protocol".
[17] 3GPP TS 26.247: "Transparent end-to-end Packet-switched Streaming Service (PSS) Progressive
Download and Dynamic Adaptive Streaming over HTTP (3GP-DASH)".
[18] 3GPP TS 29.214: "Policy and Charging Control over Rx reference point".
[19] 3GPP TS 26.234: "End-to-end transparent streaming service; Protocols and codecs".
[20] 3GPP2 C.S0046-0 v1.0: "3G Multimedia Streaming Services".
[21] 3GPP2 C.S0055-A v1.0: "Packet Switched Video Telephony Services (PSVT/MCS)".
[22] 3GPP TS 29.521: "5G System; Binding Support Management Service; Stage 3".
[23] 3GPP TS 29.594: "5G System; Spending Limit Control Service; Stage 3".
[24] 3GPP TS 29.522: "5G System; Network Exposure Function Northbound APIs; Stage 3".
[25] 3GPP TS 29.551: "5G System; Packet Flow Description Management Service; Stage 3".
[26] 3GPP TS 29.554: "5G System; Background Data Transfer Policy Control Service; Stage 3".
[27] 3GPP TS 29.504: "5G System; Unified Data Repository Services; Stage 3".
[28] 3GPP TS 32.240: "Charging management; Charging architecture and principles".
[29] IETF RFC 6733: "Diameter Base Protocol".
[30] 3GPP TS 29.213: "Policy and charging control signalling flows and Quality of Service (QoS)
parameter mapping".
3 Definitions, symbols and abbreviations
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].
NSI ID: An identifier for a Network Slice instance.
3.2 Abbreviations
For the purposes of the present 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].
5GC 5G Core Network
5QI 5G QoS Identifier
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3GPP TS 29.513 version 15.1.0 Release 15 8 ETSI TS 129 513 V15.1.0 (2018-10)
AF Application Function
AMBR Aggregate Maximum Bit Rate
AMF Access and Mobility Management Function
ARP Allocation and Retention Priority
AW Average Window
BSF Binding Support Function
CHF Charging Function
LBO Local Breakout
MBR Maximum Bitrate
MPD Media Presentation Description
MPS Multimedia Priority Service
NEF Network Exposure Function
NRF Network Repository Function
NSI Network Slice Instance
NWDAF Network Data Analytics Function
PCC Policy and Charging Control
PCF Policy Control Function
PDB Packet Delay Budget
PER Packet Error Rate
PL Priority Level
QNC QoS Notification Control
QoS Quality of Service
SDP Session Description Protocol
SMF Session Management Function
S-NSSAI Single Network Slice Selection Assistance Information
UDR Unified Data Repository
UPF User Plane Function
4 Reference architecture
The policy framework functionality in 5G is comprised by the functions of the Policy Control Function (PCF), the
policy and charging enforcement functionality supported by SMF and UPF, the access and mobility policy enforcement
functionality supported by the AMF, the Network Data Analytics Function (NWDAF), the Network Exposure Function
(NEF), the Charing Function (CHF), the Unified Data Repository (UDR) and the Application Function (AF).
3GPP TS 23.503 [4] specifies the 5G policy framework stage 2 functionality.
NEF UDR PCF AF NWDAF CHF
Nchf
Naf Nnwdaf
Nnef Nudr Npcf
Namf Nsmf
AMF
SMF
N4
UPF
Figure 4.1-1a: Overall non-roaming 5G Policy framework architecture (service based representation)
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3GPP TS 29.513 version 15.1.0 Release 15 9 ETSI TS 129 513 V15.1.0 (2018-10)
NWDAF NEF CHF
AF
UDR
N25 N5 N23 N30 N29 N28 N40
PCF
N15 N7
AMF
SMF
N4
UPF
Figure 4.1-1b: Overall non-roaming 5G Policy framework architecture (reference point representation)
NOTE 1: The N4 interface is not part of the Policy Framework architecture but shown in the figures for
completeness.
NOTE 2: The interactions between the PCF and the AF need to provide the Rx functionalities as defined in
3GPP TS 23.203 [13] to allow the 5GC to interwork with the AFs related to the existing services e.g. IMS
based services and Mission critical services.
The Nchf service for online and offline charging consumed by the SMF is defined in 3GPP TS 32.240 [28].
The Nchf service for Spending Limit Control consumed by the PCF is defined in 3GPP TS 29.594 [23].
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3GPP TS 29.513 version 15.1.0 Release 15 10 ETSI TS 129 513 V15.1.0 (2018-10)
VPLMN HPLMN
UDR
NEF NWDAF AF V-PCF H-PCF
Naf Npcf Nudr
Nnef Nnwdaf Npcf
Namf Nsmf
AMF
SMF
N4
UPF
Figure 4.1-2a: Overall roaming policy framework architecture - LBO (service based representation)
VPLMN HPLMN
NEF AF NWDAF UDR
N30
N5 N23 N25
N24
V-PCF H-PCF
N7
N15
AMF SMF
N4
UPF
Figure 4.1-2b: Overall roaming policy framework architecture - LBO (reference point representation)
NOTE 3: In the LBO sc
...