name: MN
full_form: Master Node
context: { UE reconfigures the DRB and sends an RRCReconfigurationComplete message } } (4) with { UE in RRC_CONNECTED state with NR-DC and MN terminated Split DRB established with security key KgNB } ensure that { when { UE receives an RRCReconfiguration message to modify the MN terminated Split DRB to SN terminated MCG DRB with security key change to s-KgNB } then { UE reconfigures the DRB and sends an RRCReconfigurationComplete message } } (5) with { UE in RRC_CONNECTED state with NR-DC and SN terminated MCG DRB established with security key s-KgNB } ensure that { when { UE receives an RRCReconfiguration message to modify the SN terminated MCG DRB to MN terminated MCG DRB with security key change to KgNB } then { UE reconfigures the DRB and sends an RRCReconfigurationComplete message } } (6) with { UE in RRC_CONNECTED state with NR-DC and MN terminated MCG DRB established with security key KgNB } ensure that { when { UE receives an RRCReconfiguration message to modify the MN terminated MCG
description: The Master Node (MN) is a network function responsible for managing and controlling the bearer configuration and security key changes in the 5G core network, specifically in the context of NR-DC (New Radio-Dual Connectivity) and MCG (Mission Critical Communication) scenarios.
explanation: MN is classified as a Network Function based on its role in managing and controlling the bearer configuration and security key changes, as highlighted by the context from 3GPP TS 38.523.
section_title: 8.2.2.8.2Bearer Modification / Handling for bearer type change with security key change / NR-DC
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biotag_Description: O,B-Network Function,I-Network Function,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,O,B-Technology,O,O,O,O,B-Network,O,O,O,O