name: GPSI
full_form: Generic Public Subscription Identifier
context: NOTE 2: Analysis can be done in user consent study. Also, the same principle with the IP address to GPSI translation API, where GPSI is sent to the servers, can be applied here. 5. The EES/ECS checks whether the GPSI sent by the EEC and the GPSI received from the AAnF /NEF are same or not. If the check is successful, the KAF (KECUEID) is used for authentication as mentioned above. Another solution option to authenticate the GPSI is the usage of IP address to GPSI translation API (UE identifier API). 1. The EEC sends GPSI to the EES/ECS if the GPSI is available to the EEC. 2. The EES/ECS invokes the UE identifier API inputting the UE IP address and the application information associated with the expected GPSI. Note that, the EES/ECS can retrieve the application information from the EEC or from local configuration and policy. 3. The NEF authorizes that the EES/ECS is entitled to use the UE identifier API and the application information to get the application specific GPSI, based on
description: The Generic Public Subscription Identifier (GPSI) is a critical network attribute used for authentication and identification purposes in EEC-EES/ECS communication. It is utilized in various procedures, including the IP address to GPSI translation API, to verify user consent and authenticate sessions.
explanation: The context explicitly mentions GPSI as an identifier sent by the EEC and verified by the EES/ECS for authentication purposes. This usage aligns with the definition of a Parameter, which includes critical network attributes such as identifiers and timers.
section_title: 6.17.2.2	Authentication of the GPSI in EEC-EES/ECS communication
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