name: NGC
full_form: NextGen Core
context: The NGC assigns a new short-term identifier to the UE in NGC-NAS messages like in LTE. Some examples of such message(s) in terms of a current LTE system are ATTACH ACCEPT, TRACKING AREA UPDATE ACCEPT, and GUTI REALLOCATION COMMAND. Apart from mandating the NGC to assign a new short-term identifier each time to the UE, it is crucial that the UE verifies the freshness of the newly assigned short-term identifier. Because, a poor implementation and/or policy configuration of the NGC could assign the same identifier repeatedly to the UE or the NGC could toggle between two fixed identifiers for the UE. Therefore, the UE verifies that the newly assigned short-term identifier is a fresh one, for example by at least comparing to the last one or the last two. Editor's Note: It is FFS to determine how many of last assigned temporary identifiers are sufficient for the UE to check for enhancing the privacy. If the verification fails, the UE disconnects from the network, refuses to establish a user
description: The NextGen Core (NGC) is a critical component of the 5G core network responsible for assigning short-term identifiers to User Equipment (UE), handling UE authentication, and managing session establishment. It plays a vital role in ensuring the security and privacy of user data by verifying the freshness of assigned identifiers.
explanation: The context explicitly mentions NGC's role in assigning new short-term identifiers to UEs, handling specific NAS messages, and the importance of verifying identifier freshness for enhancing user privacy. This clearly indicates that NGC is a Network Function within the 5G core network.
section_title: 5.7.4.13.2.3	Solution Variant-B
biotag_Context: O,B-Network,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Technology,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,B-Network,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network,O,O,O,O,O,O,O,O,B-Device,O,O,B-Network,O,O,O,O,O,O,O,O,O,O,O,B-Device,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,B-Item,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,O
biotag_Description: O,B-Network Function,I-Network Function,O,O,O,O,O,O,O,B-Technology,O,O,O,O,O,O,O,O,B-Device,I-Device,O,O,B-Device,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