name: RR
full_form: Radio Resource
context: The cause of registration failure issue lies in the fact that after NAS reroute via RAN to the target AMF, the UE and the target AMF may have inconsistent security contexts: - If the UE registers with a SUCI, then the UE and the initial AMF will establish and activate new security context before RR rerouting. After RR rerouting via RAN, the target AMF cannot obtain the new security context. Target AMF will send unprotected authentication request to the UE. UE with security activated will discard it. To solve this, the solution requires the UE to process the unprotected authentication request. - If the UE registers with a 5G-GUTI and protects the RR with the old security context, the UE and the initial AMF may also establish and activate new security context before RR rerouting. After RR is rerouted via RAN to the target AMF, the target AMF cannot obtain the new security context. The target AMF may or may not be able to obtain the old security context. If the target AMF cannot obtain
description: Radio Resource (RR) is a network function responsible for managing and controlling radio resources in the RAN (Radio Access Network). It plays a crucial role in handling UE registration, security context establishment, and authentication processes.
explanation: The text describes RR as a function that manages radio resources and handles key processes like UE registration, security, and authentication within the RAN. These responsibilities align with the definition of a Network Function.
section_title: 6.3.1	Solution Overview
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biotag_Description: B-Network Function,I-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O