name: AF
full_form: Application Function
context: The message contains the UE SUPI, serving PLMN ID, and ASNF address. The UE registration information is updated and stored in the UDM. 3. The UDM optionally sends the UE roaming information Update to the AAnF. The message contains the UE SUPI, PLMN ID(s) of visited network(s) and ASNF address(s). 4a. The UE initiates communication with the AF via the Application Session Establishment Request message. 4b. The AF requests the AF key (KAF) from the AAnF, possibly via NEF. 4c. The AAnF generates AF key (KAF) and returns the key to the AF as specified in TS 33.535 [2]. The AAnF now have AKMA related key material and parameters KAF and the information used for key derivation thereof. 4d. In the AF key response message, the AAnF may include possibly with an indication to request the AF to report any AF key material and parameters. NOTE 3: If the AF is in the Data Network (Internet), whether the AF can process this request for key material or whether the AF will provide the key material to
description: The Application Function (AF) interacts with User Equipment (UE) and other network functions like the Authentication and Authorization Network Function (AAnF). It establishes application sessions, manages key materials, and enables secure communication between the UE and applications in the data network.
explanation: The text describes the AF performing tasks typical of a Network Function: interacting with UEs and other network elements, managing sessions, and handling security aspects like key material. This clearly places it within the category of Network Functions.
section_title: 6.16.2	Solution details
biotag_Context: O,O,O,O,B-Device,O,O,B-Network,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,B-Device,O,B-Network,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,B-Specification,O,O,O,O,O,O,B-Protocol,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,B-Network,I-Network,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O
biotag_Description: O,B-Network Function,I-Network Function,O,O,O,B-Device,I-Device,O,O,O,O,O,O,O,B-Network Function,I-Network Function,I-Network Function,B-Network Function,I-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O