Pdcp packet-based ddds frame transmission

A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors of a node, the one or more processors to configure the node to, when the instructions are executed:

• receive a Downlink (DL) User Data Frame from another node hosting a New Radio (NR) Packet Data Convergence Control (PDCP) entity, an indication to trigger feedback to the other node indicating successful delivery of the specific NR PDCP PDU to a user equipment (UE),
• receive a NR PDCP PDU from the other node;
• transmit the NR PDCP PDU toward the UE;
• determine that the NR PDCP PDU was successfully delivered to the UE based on feedback from the UE;
• determine that the NR PDCP PDU is the specific NR PDCP PDU;
• and
• in response to determining that the specific NR PDCP PDU has been successfully delivered, transmit to the other node, a DL Data Delivery Status (DDDS) frame that indicates successful delivery of the NR PDCP PDU to the UE.

An apparatus of a central unit of a 5th generation NodeB (gNB), the apparatus comprising:

• processing circuitry arranged to:
• generate, for transmission to a distributed unit of the gNB, a Downlink (DL) User Data Frame that comprises:
• a report delivered parameter that indicates a presence of a DL report New Radio (NR) Packet Data Convergence Control (PDCP) packet data unit (PDU) sequence number (SN) parameter in the DL User Data Frame, and
• the DL report NR PDCP PDU SN parameter, which indicates a DL report NR PDCP PDU SN, and
• decode a DL Data Delivery Status (DDDS) frame from the distributed unit that indicates in-sequence successful delivery of PDCP PDUs having SN up to the DL report NR PDCP PDU SN to a user equipment (UE);
• and
• a memory configured to store the DL report NR PDCP PDU SN.