name: MCG
full_form: Master Cell Group
context: failure by allowing the UE in MR-DC to send an MCG Failure Information message to the MN via the SCG upon the detection of a radio link failure on the MCG. Based on measurement information received in MCG Failure Information message the network can then determine the correct action to restore the MCG connection, e.g. change of PCell. o Fast MCG link recovery requires that both UE and network support the feature, and that the UE is configured with either split SRB or SCG SRB. o The UE initiates the RRC connection re-establishment procedure if it does not receive a reconfiguration message from the network within a certain time after fast MCG link recovery was initiated. â¢ Cross-carrier scheduling with different numerologies: Support for cross carrier scheduling in carrier aggregation, with different numerology on the scheduling and scheduled carriers. â¢ CA with unaligned frame boundary: Support for NR inter-band carrier aggregation with slot alignment, but with unaligned frame boundary
description: The Master Cell Group (MCG) is a network function responsible for managing the primary cell group in dual connectivity and carrier aggregation scenarios. It plays a crucial role in handling radio link failures, re-establishing connections, and scheduling resources across different carriers.
explanation: The context describes MCG's functions as managing UE connections, handling failures, and resource scheduling. These actions are characteristic of a network function that controls and manages specific aspects of the telecommunications network.
section_title: 19.2.6	LTE-NR & NR-NR Dual Connectivity and NR Carrier Aggregation enhancements
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