Question: Under what condition does the network initiate the Downlink (DL) Dedicated Message Segment transfer procedure in a 5G New Radio (NR) environment?
Option 1: When the User Equipment (UE) requests a dedicated channel for signaling.
Option 2: When the total number of connected UEs exceeds the cell's capacity.
Option 3: When the encoded Radio Resource Control (RRC) message Protocol Data Unit (PDU) size surpasses the maximum Packet Data Convergence Protocol (PDCP) Service Data Unit (SDU) size.
Option 4: During handover from one base station to another.
Explanation: This is correct because, according to RRC protocol specifications for 5G NR, the network initiates the DL Dedicated Message Segment transfer procedure when the encoded RRC message PDU exceeds the maximum allowed PDCP SDU size, ensuring large messages are properly segmented for transmission.