3GPP Specification Compliance for PCF
Interfaces
• Feature Summary and Revision History, on page 1
• Feature Description, on page 2
• Configuring Interfaces and Endpoints, on page 3
Feature Summary and Revision History
Summary Data
Table 1: Summary Data
Applicable Products or Functional Area PCF
Applicable Platform(s) SMI
Feature Default Setting Not Applicable
Related Documentation Not Applicable
Revision History
Table 2: Revision History
Revision Details Release
Enhancement introduced. 2022.02.0
PCF supports N5 Interface.
First introduced. 2020.02.0
3GPP Specification Compliance for PCF Interfaces
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3GPP Specification Compliance for PCF Interfaces
Feature Description
Feature Description
The PCF is compliant with the December 2018 and June 2019 compliance version of 3GPP specification for
the PCF interfaces such as N7, N25, N28, and Nnrf. The PCF processes the messages from these interfaces
as per the compliance profile configured for the corresponding services.
Currently, IE encoding and decoding are supported. Only the existing features work with the June 2019
specification versions. No additional features in the June 2019 version are supported.
Note The PCF continues to support the older versions of 3GPP specifications and the compliance profile configuration
controls the same for the PCF interfaces.
Standards Compliance
The PCF is one of the control plane network functions (NFs) of the 5G core network. The PCF uses different
interfaces to communicate with the other NFs or nodes, for example, the N7 interface exists between the SMF
and PCF. Each of the PCF interfaces complies with a specific version of 3GPP specification.
Use the following table to determine the compliance mapping of each PCF interface and the 3GPP Standards
specification versions.
Table 3: Compliance Mapping
Interface Relationship 3GPP Specification Version
Rx Reference point for 29.214 Release 15 15.1.0
interworking with AF and
PCF.
N5 Reference point between 29.514 Release 16 16.7.0
AF and PCF.
N7 Reference point between 29.510 Release 15 15.4.0 and 15.2.0
SMF and PCF.
N15 Reference point between 29.507 Release 15 15.4.0
AMF and PCF.
N36 Reference point between 29.519 Release 15 15.4.0
UDR and PCF
N28 Reference point between 29.594 Release 15 15.4.0 and 15.2.0
PCF and CHF
Lightweight Directory Reference point between NA RFC 4511 Lightweight
Access Protocol (LDAP) PCF and external Directory Access Protocol
subscriber profile. (LDAP)
Nnrf Reference point between 29.510 Release 15 15.4.0 and 15.4.0
PCF and NRF.
3GPP Specification Compliance for PCF Interfaces
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3GPP Specification Compliance for PCF Interfaces
Configuring Interfaces and Endpoints
Configuring Interfaces and Endpoints
This section describes how to configure the interfaces/endpoints that interact with PCF.
• For configuring the N5, N7, N15, N25, and N28, see Configuring the REST Endpoints.
• For configuring the LDAP endpoint, see Configuring the LDAP Endpoint.
• Configuring the NRF interface involves the following steps:
• Configuring the NRF Endpoint for Management Services
• Configuring the NRF Endpoint for Discovery Service
3GPP Specification Compliance for PCF Interfaces
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3GPP Specification Compliance for PCF Interfaces
Configuring Interfaces and Endpoints
3GPP Specification Compliance for PCF Interfaces
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