Content for TS 29.512 Word version: 18.6.1
1 Scope p. 12
The present document provides the stage 3 specification of the Session Management Policy Control Service of 5G system. The stage 2 definition and related procedures of the Session Management Policy Control Service are contained in TS 23.502 and TS 23.503. The 5G System Architecture is defined in TS 23.501.
Stage 3 call flows are provided in TS 29.513.
The Technical Realization of the Service Based Architecture and the Principles and Guidelines for Services Definition of the 5G System are specified in TS 29.500 and TS 29.501.
The Policy Control Function with session related policies provides the Session Management Policy Control Service to the NF server consumers (e.g. Session Management Function).
2 References p. 12
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]
TR 21.905: "Vocabulary for 3GPP Specifications".
[2]
TS 23.501: "System Architecture for the 5G System; Stage 2".
[3]
TS 23.502: "Procedures for the 5G System; Stage 2".
[4]
TS 29.500: "5G System; Technical Realization of Service Based Architecture; Stage 3".
[5]
TS 29.501: "5G System; Principles and Guidelines for Services Definition; Stage 3".
[6]
TS 23.503: "Policy and Charging Control Framework for the 5G System; Stage 2".
[7]
TS 29.513: "5G System; Policy and Charging Control signalling flows and QoS parameter mapping; Stage 3".
[8]
RFC 9113: "HTTP/2".
[9]
RFC 8259: "The JavaScript Object Notation (JSON) Data Interchange Format".
[10]
OpenAPI: "OpenAPI Specification Version 3.0.0", https://spec.openapis.org/oas/v3.0.0 .
[11]
TS 29.571: "5G System; Common Data Types for Service Based Interfaces; Stage 3".
[12]
TS 29.508: "5G System; Session Management Event Exposure Service; Stage 3".
[13]
TS 29.244: "Interface between the Control Plane and the User Plane of EPC Nodes".
[14] Void.
[15]
TS 29.519: "5G System; Usage of the Unified Data Repository service for Policy Control Data, Application Data and Structured Data for Exposure; Stage 3".
[16]
TS 23.228: "IP multimedia subsystem; Stage 2".
[17]
TS 29.514: "5G System; Policy Authorization Service; Stage 3".
[18]
TS 29.214: "Policy and Charging Control over Rx reference point 5".
[19]
TS 32.291: "5G System; Charging service; Stage 3".
[20]
TS 24.501: "Non-Access-Stratum (NAS) protocol for 5G System (5GS); Stage 3".
[21]
TS 23.380: "IMS Restoration Procedures".
[22]
TS 29.502: "5G System; Session Management Services; Stage 3".
[23]
TS 29.212: "Policy and Charging Control (PCC); Reference points".
[24]
TS 32.422: "Telecommunication management; Subscriber and equipment trace; Trace control and configuration management".
[25]
TS 29.507: "5G System; Access and Mobility Policy Control Service; Stage 3".
[26]
TS 23.060: "General Packet Radio Service (GPRS); Service description; Stage 2".
[27]
TS 33.501: "Security architecture and procedures for 5G system".
[28]
RFC 6749: "The OAuth 2.0 Authorization Framework".
[29]
TS 29.510: "Network Function Repository Services; Stage 3".
[30]
TS 32.290: "5G system; Services, operations and procedures of charging using Service Based Interface (SBI)".
[31]
RFC 9457: "Problem Details for HTTP APIs".
[32]
TS 29.122: "T8 reference point for Northbound APIs".
[33]
TS 23.527: "5G System; Restoration Procedures".
[34]
TS 29.503: "5G System; Unified Data Management Services; Stage 3".
[35]
TS 32.255: "Charging management; 5G data connectivity domain charging; stage 2".
[36]
TS 29.518: "5G System; Access and Mobility Management Services; Stage 3".
[37]
TS 29.274: "3GPP Evolved Packet System (EPS); Evolved General Packet Radio Service (GPRS) Tunnelling Protocol for Control plane (GTPv2-C); Stage 3".
[38]
TR 21.900: "Technical Specification Group working methods".
[39]
TS 29.521: "5G System; Binding Support Management Service; Stage 3".
[40]
TS 29.524: "Cause codes mapping between 5GC interfaces; Stage 3".
[41]
TS 24.008: "Mobile radio interface Layer 3 specification".
[42]
TS 23.316: "Wireless and wireline convergence access support for the 5G System (5GS)".
[43]
TS 24.193: "Access Traffic Steering, Switching and Splitting (ATSSS); Stage 3".
[44]
TS 24.519: "Time-Sensitive Networking (TSN) Application Function (AF) to Device-Side TSN Translator (DS-TT) and Network-Side TSN Translator (NW-TT) protocol aspects; Stage 3".
[45]
IEEE Std 802.1Q-2018: "IEEE Standard for Local and metropolitan area networks--Bridges and Bridged Networks".
[46]
TS 29.551: "5G System; Packet Flow Description Management Service; Stage 3".
[47]
BBF TR-456: "AGF Functional Requirements".
[48]
CableLabs WR-TR-5WWC-ARCH: "5G Wireless Wireline Converged Core Architecture".
[49]
TS 24.539: "5G System (5GS); Network to TSN translator (TT) protocol aspects; Stage 3".
[50]
TS 29.564: "5G System; User Plane Function Services; Stage 3".
[51]
TS 29.520: "5G System; Network Data Analytics Services; Stage 3".
[52]
TS 24.301: "Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS); Stage 3".
[53]
TS 29.565: "5G System; Time Sensitive Communication and Time Synchronization Function Services; Stage 3".
[54]
TS 38.413: "NG Radio Access Network (NG-RAN); NG Application Protocol (NGAP)".
[55]
RFC 8655: "Deterministic Networking Architecture".
[56]
RFC 8344: "A YANG Data Model for IP Management".
[57]
TS 29.525: "5G System; UE Policy Control Service; Stage 3".
[58]
TS 23.401: "General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access".
[59]
TS 29.522: "5G System; Network Exposure Function Northbound APIs; Stage 3".
[60]
TS 32.299: "Charging management; Diameter charging applications"
[61]
TS 29.523: "5G System; Policy Control Event Exposure Service; Stage 3".
[62]
TS 23.548: "5G System Enhancements for Edge Computing; Stage 2".
[63]
TS 29.594: "5G System; Spending Limit Control Service; Stage 3".
[64]
RFC 9298: "Proxying UDP in HTTP".
3 Definitions, symbols and abbreviations p. 14
3.1 Definitions p. 14
For the purposes of the present document, the terms and definitions given in TR 21.905 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.
5G QoS Flow:
The finest granularity for QoS forwarding treatment in the 5G System. All traffic mapped to the same 5G QoS Flow receive the same forwarding treatment (e.g. scheduling policy, queue management policy, rate shaping policy, RLC configuration, etc.). Providing different QoS forwarding treatment requires separate 5G QoS Flow.
5G QoS Identifier:
A scalar that is used as a reference to a specific QoS forwarding behaviour (e.g. packet loss rate, packet delay budget) to be provided to a 5G QoS Flow. This may be implemented in the access network by the 5QI referencing node specific parameters that control the QoS forwarding treatment (e.g. scheduling weights, admission thresholds, queue management thresholds, link layer protocol configuration, etc.).
Access Traffic Steering:
The procedure that selects an access network for a new data flow and transfers the traffic of this data flow over the selected access network. Access traffic steering is applicable between one 3GPP access and one non-3GPP access.
Access Traffic Switching:
The procedure that moves all traffic of an ongoing data flow from one access network to another access network in a way that maintains the continuity of the data flow. Access traffic switching is applicable between one 3GPP access and one non-3GPP access.
Access Traffic Splitting:
The procedure that splits the traffic of a data flow across multiple access networks. When traffic splitting is applied to a data flow, some traffic of the data flow is transferred via one access and some other traffic of the same data flow is transferred via another access. Access traffic splitting is applicable between one 3GPP access and one non-3GPP access.
Application detection filter:
A logic used to detect packets generated by an application based on extended inspection of these packets, e.g., header and/or payload information, as well as dynamics of packet flows. The logic is entirely internal to a UPF, and is out of scope of this specification.
Application identifier:
An identifier, referring to a specific application detection filter.
Application service provider:
A business entity responsible for the application that is being / will be used by a UE, which may be either an AF operator or has an association with the AF operator.
Binding:
The association between a service data flow and the QoS Flow transporting that service data flow.
Binding mechanism:
The method for creating, modifying and deleting bindings.
Charging control:
The process of associating packets, belonging to a service data flow, to a charging key and applying online charging or offline charging, as appropriate.
Charging key:
information used by the CHF for rating purposes.
Detected application traffic:
An aggregate set of packet flows that are generated by a given application and detected by an application detection filter.
Dynamic PCC Rule:
a PCC rule, for which the definition is provided to the SMF by the PCF.
Gating control:
The process of blocking or allowing packets, belonging to a service data flow / detected application's traffic, to pass through to the UPF.
MA PDU Session:
A PDU Session that provides a PDU connectivity service, which can use one access network at a time, or simultaneously one 3GPP access network and one non-3GPP access network.
Monitoring key:
information used by the SMF and PCF for usage monitoring control purposes as a reference to a given set of service data flows or application (s), that all share a common allowed usage on a per UE and DNN and S-NSSAI basis.
Operating System (OS):
Collection of UE software that provides common services for applications.
Operating System Identifier (OSId):
An identifier identifying the operating system.
PCC decision:
A PCF decision for policy and charging control provided to the SMF (consisting of PCC rules and PDU Session related attributes), a PCF decision for access and mobility related control provided to the AMF, a PCF decision for UE access selection and PDU Session selection related policy provided to the UE or a PCF decision for background data transfer policy provided to the AF.
PCC rule:
A set of information enabling the detection of a service data flow and providing parameters for policy control and/or charging control and/or other control or support information. The possible information is described in clause 6.3.1.
PDU Session:
Association between the UE and a Data Network that provides a PDU connectivity service.
Policy control:
The process whereby the PCF indicates to the SMF how to control the QoS Flow. Policy control includes QoS control and/or gating control.
Policy Control Request trigger report:
a notification, possibly containing additional information, of an event which occurs that corresponds with a Policy Control Request trigger.
Policy Control Request trigger:
defines a condition when the SMF shall interact again with the PCF.
Predefined PCC Rule:
a PCC rule that has been provisioned directly into the SMF by the operator.
Redirection:
Redirect the detected service traffic to an application server (e.g. redirect to a top-up / service provisioning page).
Service data flow:
An aggregate set of packet flows carried through the UPF that matches a service data flow template.
Service data flow filter:
A set of packet flow header parameter values/ranges used to identify one or more of the packet flows in the UPF. The possible service data flow filters are defined in clause 6.2.2.2.
Service data flow filter identifier:
A scalar that is unique for a specific service data flow (SDF) filter within a PDU session.
Service data flow template:
The set of service data flow filters in a PCC Rule or an application identifier in a PCC rule referring to an application detection filter in the SMF or in the UPF, required for defining a service data flow.
Service identifier:
An identifier for a service. The service identifier provides the most detailed identification, specified for flow based charging, of a service data flow. A concrete instance of a service may be identified if additional AF information is available (further details to be found in clause 6.3.1).
For the purposes of the present document, the following terms and definitions given in subclause 3.1 of TS 23.501 apply:
Onboarding Standalone Non-Public Network
Onboarding Network
3.2 Abbreviations p. 16
For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.
5G-RG
5G Residential Gateway
ADC
Application Detection and Control
AF
Application Function
AMF
Access and Mobility Management Function
API
Application Programming Interface
ATSSS
Access Traffic Steering, Switching, Splitting
ATSSS-LL
ATSSS Low-Layer
BAT
Burst Arrival Time
BBF
Broadband Forum
CHEM
Coverage and Handoff Enhancements using Multimedia error robustness feature
CHF
Charging Function
DCS
Default Credentials Server
DDD
Downlink Data Delivery
DDN
Downlink Data Notification
DetNet
Deterministic Networking
DN-AAA
Data Network Authentication, Authorization and Accounting
DNN
Data Network Name
DS-TT
Device-side TSN translator
DTS
Data Transport Service
EAS
Edge Application Server
ECN
Explicit Congestion Notification
ePDG
evolved Packet Data Gateway
FN-RG
Fixed Network Residential Gateway
GEO
Geosynchronous Orbit
GFBR
Guaranteed Flow Bit Rate
GUAMI
Globally Unique AMF Identifier
HFC
Hybrid Fiber Coax
HTTP
Hypertext Transfer Protocol
HR-SBO
Home Routed-Session BreakOut
I-SMF
Intermediate SMF
L4S
Low Latency Low Loss Scalable Throughput
LEO
Low Earth Orbit
MA
Multi-Access
MEO
Medium Earth Orbit
MPQUIC
Multi-Path QUIC
MPTCP
Multi-Path TCP Protocol
MTU
Maximum Transmission Unit
NAS
Non-Access-Stratum
NEF
Network Exposure Function
NF
Network Function
NID
Network Identifier
NRF
Network Repository Function
NWDAF
Network Data Analytics Function
NW-TT
Network-side TSN translator
ON-SNPN
Onboarding Standalone Non-Public Network
ONN
Onboarding Network
PCC
Policy and Charging Control
PCF
Policy Control Function
PFD
Packet Flow Description
PFDF
Packet Flow Description Function
PMIC
Port Management Information Container
PSA
PDU Session Anchor
PSAP
Public Safety Answering Point
QoS
Quality of Service
RSN
Redundancy Session Number
RTT
Round-Trip Time
SDF
Service Data Flow
SFC
Service Function Chain
SMF
Session Management Function
SNPN
Stand-alone Non-Public Network
S-NSSAI
Single Network Slice Selection Assistance Information
SSC
Service and Session Continuity
SUPL
Secure User Plane for Location
TNAN
Trusted Non-3GPP Access Network
TWAN
Trusted WLAN Access Network
TSC
Time Sensitive Communication
TSCAI
Time Sensitive Communication Assistance Information
TSCTSF
Time Sensitive Communication and Time Synchronization Function
TSN
Time Sensitive Networking
TSN GM
TSN Grand Master
UDM
Unified Data Management
UDR
Unified Data Repository
UE
User Equipment
UL CL
UpLink CLassifier
UMIC
User plane node Management Information Container
UPF
User Plane Function
URLLC
Ultra Reliable Low Latency Communication
URSP
UE Route Selection Policy
W-5GAN
Wireline 5G Access Network
W-5GBAN
Wireline BBF Access Network
W-5GCAN
Wireline 5G Cable Access Network
W-AGF
Wireline Access Gateway Function
