name: ICF
full_form: Identity Caching Function
context: The ICF has an ID association for that SUPI with an active 5G-GUTI, however, the Association Start Time Tp of that ID association is after the Observed Time of T1. The ID association with a 5G-GUTI which was active at the Observed Time T1 is in de-caching phase within the ICF when the ICF receives the Identity Association Request. Accordingly, the Identity Association Response will have the Identity Association Record with the 5G-GUTI (including SUPI, SUCI, PEI) with an Association Start Time of Tg and Association End Time of Tp. Scenario 3: The Identity Association Request (with the SUPI in the Request Details) is received at the ICF with an Observed Time of T2. The ICF has an ID association for that SUPI with an active 5G-GUTI, however, the Association Start Time Ty of that ID association is after the Observed Time of T2. The ID association with a 5G-GUTI which was active at the Observed Time T2 is in the de-caching phase within the ICF when the ICF receives the Identity Association
description: The Identity Caching Function (ICF) is a network component responsible for managing identity associations between Subscriber Permanent Identifiers (SUPIs) and 5G-Globally Unique Temporary Identifiers (5G-GUTIs). It handles the caching and de-caching of these associations, ensuring that the most up-to-date information is available for authentication and session management purposes.
explanation: The ICF is classified as a Network Function based on its role in managing identity associations within the network, as highlighted by the context. The text from 3GPP TS 33.929 describes the ICF's behavior in handling Identity Association Requests and maintaining ID associations with active 5G-GUTIs.
section_title: 6.5.4.3	Illustration 2
biotag_Context: O,B-Network Function,O,O,B-Parameter,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,B-Network Function,O,O,B-Parameter,O,O,O,O,B-Parameter,O,O,O,O,O,B-Parameter,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,B-Network Function,O,O,B-Parameter,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,B-Parameter,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,B-Network Function,O,O,B-Network Function,O,O,B-Parameter,O
biotag_Description: O,B-Network Function,I-Network Function,I-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O