Question: In a split gNB architecture with common PDCP, how does the gNB-DU handle MBS data from the gNB-CU via a shared F1-U tunnel for UEs in RRC_CONNECTED?
Option 1: Always uses Point-to-Multipoint (PTM) for broadcast efficiency
Option 2: Only utilizes Point-to-Point (PTP) for guaranteed individual delivery
Option 3: Selects between PTM or PTP based on UE's QoS profile
Option 4: Makes a dynamic decision to use either PTP, PTM, or both
Explanation: In a split gNB (Next-Generation NodeB) architecture for UEs in RRC_CONNECTED state, the gNB-DU (Distributed Unit) has the flexibility to dynamically switch between Point-to-Point (PTP) and Point-to-Multipoint (PTM) transmission modes for Multimedia Broadcast Services (MBS). This dynamic decision allows for efficient resource utilization, catering to various service requirements. For PTP, it ensures dedicated resources for each UE, while PTM enables broadcast to multiple UEs simultaneously, optimizing bandwidth for common content. The ability to use "both" might imply scenarios where some parts of the MBS are transmitted via PTP (e.g., personalized content) and others via PTM (common content), further enhancing service delivery efficiency.