name: TP
full_form: Terminal Portability
context: Figure 6.3.5-3 illustrates one example of ID association caching aspects within the ICF. Figure 6.3.5-3: Caching and de-caching principles Figure 6.3.5-3 shows 5 scenarios of the ICF handling of the cached ID associations. Note that in scenario 4, the IEF Association Record has the SUCI but not the PEI. As a result, the subsequent ID associations (scenario 5) will not have the PEI. 1. A 5G-GUTI is assigned to the UE. The IEF sends an IEF Association Record message that contains the SUCI, 5G-GUTI, SUPI, PEI, TAI, N-CGI, Time-stamp of Tg and N-CGI-Time. The ICF caches the information as the ID association with Tg as the Association Start Time. 2. A new 5G-GUTI is assigned to the UE. The IEF sends an IEF Association Record message that contains the 5G-GUTI, SUPI, TAI, N-CGI, Time-stamp of Tp and N-CGI-Time. The ICF caches the information as the ID association with Tp as the Association Start Time. The ICF stores the Tp as the Association End Time in the previous ID association and begins
description: Terminal Portability (TP) is a concept related to the management of terminal identities and their associations with network elements. It involves handling and caching ID associations within the ICF.
explanation: Terminal Portability focuses on managing terminal identities and their connections to network elements, primarily through caching ID associations within the ICF. This function doesn't neatly fit into categories like Network Functions, Protocols, or Interfaces but deals with the broader management of terminal identity information.
section_title: 6.3.5.3.2	Illustration 1
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