name: DF
full_form: Dedicated File
context: it wants to discover and receives from the 5GC a Discovery Filter (DF) which is to match the Discovery Code broadcast by Announcing UEs; the DF originates in the 5G DDNMF in the 5GC and is carried in the Discovery Request message over the PC3 interface; NOTE 2: The Discovery Filter is constructed in the same way as has been described for LTE based ProSe (e.g. in clause 4.6.4.2a of TS 23.303 [5]). NOTE 3: The DF is carried in the response to the Discovery Request message, which is protected according to the solutions for Key Issue #10. 2. The Monitoring UE uses the DF in order to try to match it against any received DCs; in case of a match, it has discovered the Announcing UE providing the ProSe application that it looked for.
description: A Discovery Filter (DF) is a message component used in the discovery process of Proximity-based Services (ProSe) in the 5G network. It is constructed by the 5G DDNMF and carried in the Discovery Request message over the PC3 interface to help Monitoring UEs match against received Discovery Codes (DCs).
explanation: The context explicitly mentions that the DF is 'carried in the Discovery Request message', indicating it's a part of the signaling data exchanged between network components, thus classifying it as a Message.
section_title: 6.22.2.1	Solution for Model A
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biotag_Description: O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Technology,O,O,O,O,O,O,B-Technology,B-Network Function,O,O,O,O,O,O,O,O,O,B-Technology,O,O,O,O,B-Device,O,O,O,O,O,O