Using sdap headers for handling of as/nas reflective qos and to ensure in-sequence packet delivery during remapping in 5g communication systems

An apparatus for a wireless communication comprising:

• a processor and a memory device coupled to the processor, the memory device containing a set of instructions that, when executed by the processor, cause the processor to:
• receive a downlink data packet and determine a service data flow associated with the downlink data packet;
• extract, from the downlink data packet, a Non-Access Stratum (NAS) Reflective QoS Indication (RQI) indicator that instructs the UE to map a service data flow to the QoS flow;
• extract, from the downlink data packet, a Quality of Service (QoS) flow identifier identifying a QoS flow;
• generate a first NAS mapping that maps the service data flow to the QoS flow, in response to a determination that the service data flow is not mapped to the QoS flow at the UE;
• and
• transmit, in accordance with the first NAS mapping, an uplink data packet associated with the service data flow through the QoS flow.

A method of wireless communication of a user equipment (UE) comprising:

• receiving a downlink data packet and determining a service data flow associated with the downlink data packet;
• extracting, from the downlink data packet, an Access Stratum (AS) Reflective QoS flow to Data Radio Bearer (DRB) mapping Indication (RDI) indicator that instructs the UE to map the QoS flow to the DRB;
• extracting, from the downlink data packet, a Quality of Service (QoS) flow identifier (QFI) identifying a QoS flow;
• determining a Data Radio Bearer (DRB) through which the downlink data packet is received;
• generating a first AS mapping that maps the QoS flow to the DRB, in response to a determination that the QoS flow is not mapped to the DRB at the UE;
• and
• transmitting, in accordance with the first AS mapping, the uplink data packet through the DRB.

An apparatus for a wireless communication comprising:

• a processor and a memory device coupled to the processor, the memory device containing a set of instructions that, when executed by the processor, cause the processor to:
• receive a downlink data packet and determine a service data flow associated with the downlink data packet;
• extract, from the downlink data packet, an Access Stratum (AS) Reflective QoS flow to Data Radio Bearer (DRB) mapping Indication (RDI) indicator that instructs the UE to map the QoS flow to the DRB;
• extract, from the downlink data packet, a Quality of Service (QoS) flow identifier (QFI) identifying a QoS flow;
• determine a Data Radio Bearer (DRB) through which the downlink data packet is received;
• generate a first AS mapping that maps the QoS flow to the DRB, in response to a determination that the QoS flow is not mapped to the DRB at the UE;
• and
• transmit, in accordance with the first AS mapping, the uplink data packet through the DRB.

A method of wireless communication of a user equipment (UE), the method comprising:

• determining whether a Quality of Service (QoS) flow is remapped from a first data radio bearer (DRB) to a second DRB;
• setting, in a last data packet of the one or more packets, an end marker indicating an end of packets associated with the QoS flow scheduled to be transmitted through the first DRB, in response to determining that one or more data packets remain to be transmitted through the first DRB;
• and
• transmitting the last data packet through the first DRB from the UE.

An apparatus for a wireless communication comprising:

• a processor and a memory device coupled to the processor, the memory device containing a set of instructions that, when executed by the processor, cause the processor to:
• determine whether a Quality of Service (QoS) flow is remapped from a first data radio bearer (DRB) to a second DRB;
• set, in a last data packet of the one or more packets, an end marker indicating an end of packets associated with the QoS flow scheduled to be transmitted through the first DRB, in response to determining that one or more data packets remain to be transmitted through the first DRB;
• and
• transmit the last data packet through the first DRB from the UE.

A method of wireless communication of a base station, comprising:

• determining whether in-order delivery is required for a QoS flow;
• receiving first one or more data packets associated with the QoS flow through a first DRB and receiving second one or more data packets associated with the QoS flow through a second DRB;
• determining whether at least one of the first one or more data packets includes a data packet having an end marker indicating an end of packets associated with the QoS flow scheduled to be transmitted through the first DRB;
• and
• sending the second one or more data packets to an upper layer subsequent to that the first one or more data packets are sent to the upper layer, in response to determining that at least one of the first one or more data packets includes the data packet having the end marker.

An apparatus for a wireless communication comprising:

• a processor and a memory device coupled to the processor, the memory device containing a set of instructions that, when executed by the processor, cause the processor to:
• receive first one or more data packets associated with a QoS flow through a first DRB and receive second one or more data packets associated with the QoS flow through a second DRB;
• determine whether at least one of the first one or more data packets includes a data packet having an end marker indicating an end of packets associated with the QoS flow scheduled to be transmitted through the first DRB;
• and
• send the second one or more data packets to an upper layer subsequent to that the first one or more data packets are sent to the upper layer, in response to determining that at least one of the first one or more data packets includes the data packet having the end marker.