Editing My 5G lawful interception notes (section)

== Identity functions ==

* ICF	Identifier Caching Function
* IEF	Identifier Event Function
* IQF	Identifier Query Function

For dedicated query, lookup and reporting, figure 5.7-1 shows the high-level architecture used to support identifier association query and response requirements. The Identifier Event Function (IEF) provides the Identifier Caching Function (ICF) with the events necessary to answer the identifier association queries from the IQF. LEAs are able to issue real-time queries to the Identifier Query Function (IQF), which in turn queries the ICF.