Multicast broadcast service simultaneous transmission using downlink non-orthogonal multiple access (NOMA)

A method comprising:

• partitioning, by a base station, data packets for multiple multicast and broadcast service (MBS) sessions into multiple non-orthogonal multiple access (NOMA) layers in a wireless network, wherein an MBS session provides a MBS with a QoS for a UE;
• encoding data packets for each NOMA layer with corresponding NOMA encoder, wherein each NOMA encoder is configured with independent NOMA configuration parameters for the physical (PHY) layer;
• performing symbol alignment with one or more symbol alignment procedures for encoded data packets from the multiple NOMA encoders based on NOMA configuration and the MBS;
• superimposing aligned data packets for the multiple MBS sessions into one or more time-frequency resource elements (REs);
• and
• transmitting simultaneously the multiple MBS sessions to one or more user equipments (UEs).

A user equipment (UE), comprising:

• a transceiver that transmits and receives radio frequency (RF) signal in a wireless network;
• a memory, and
• a processor coupled to the memory, the processor configured to
• receive downlink (DL) data packets for an MBS from a network entity in the wireless network, wherein the DL data packets are encoded with multiple independently encoded non-orthogonal multiple access (NOMA) layers that are superimposed onto one or more time-frequency resource elements (REs);
• obtain NOMA configuration parameters for the DL data packets;
• decode and reconnect multiple packet data units (PDUs) of the encoded DL data packets received from a PHY layer of the UE based on the NOMA configuration parameters, wherein symbols of the DL data packets from multiple NOMA layers are aligned with one or more symbol alignment procedures based on NOMA configuration and the MBS;
• and
• deliver decoded PDUs to upper layers of the UE.