Question: Upon detecting a Radio Link Failure (RLF) on the Master Cell Group (MCG) during fast MCG link recovery, what action does the UE take regarding MCG transmissions for all radio bearers, except as noted?
Option 1: Immediately resume MCG transmissions for all radio bearers.
Option 2: Suspend MCG transmissions for all radio bearers, except SRB0 and, if any, BH RLC channels.
Option 3: Release all MCG configurations and initiate a new connection setup.
Option 4: Continue MCG transmissions without interruption.
Explanation: When a UE detects an RLF on the MCG during fast MCG link recovery, it temporarily halts (suspends) MCG transmissions for all radio bearers to prevent further errors, with exceptions made for essential control channels like SRB0 (Signaling Radio Bearer 0) and any existing BH (Bearer Header) RLC (Radio Link Control) channels. This suspension allows for recovery actions without immediately releasing the connection or continuing potentially faulty transmissions.