Question: In an RRC_CONNECTED state, what is the maximum allowed total RRC connection delay (Tre-establish_delay) for a UE to send an RRCReestablishmentRequest message after detecting a loss in RRC connection?
Option 1: Equal to TUL_grant time plus additional signaling overhead
Option 2: Less than the sum of TUE_re-establish_delay and TUL_grant
Option 3: Exactly twice the value of TUE_re-establish_delay
Option 4: Directly proportional to the number of active bearers
Explanation: The correct answer reflects the requirement that the total RRC connection delay (Tre-establish_delay) must account for both the UE's re-establishment processing time (TUE_re-establish_delay) and the time needed to acquire and process an uplink grant from the target PCell (TUL_grant), ensuring efficient and timely reconnection without exceeding specified thresholds, crucial for managing radio resource allocation and maintaining seamless connectivity in NR networks.