1 Introduction

Binding Support Function (BSF) provides a PDU session binding functionality, which ensures that an AF request for a certain PDU Session reaches the relevant PCF holding the PDU Session information. This service:

  • Allows Policy Control Function users to register, update, and remove the binding information
  • Allows NF consumers to retrieve the binding information

References

This section provides the details of the references for Binding Support Function.

  • Binding Support Function Cloud Native Installation and Upgrade Guide

Acronyms

This section provides the details of the acronyms used in the document.

Table 1-1 Acronyms

Field Description
AF Application Function
BSF Binding Support Function
FQDN Fully Qualified Domain Names
GPSI Generic Public Subscription Identifier
HTTP Hypertext Transfer Protocol
NEF Network Exposure Function
NF Network Function
NRF NF Repository Function
PCF Policy Control Function
OCPM Oracle Communications Policy Management
PDU Protocol Data Unit
RDBMS Relational Database Management System
S-NSSAI Single Network Slice Selection Assistance Information. An S-NSSAI is comprised of: - A Slice/Service type (SST), which refers to the expected Network Slice behaviour in terms of features and services; - A Slice Differentiator (SD), which is an optional information that complements the Slice/Service type(s) to differentiate amongst multiple Network Slices of the same Slice/Service type.
SMF Session Management Function
SUPI Subscription Permanent Identifier
UDSF Unstructured Data Storage network function
UE User Equipment