US Patent 11190967 Downlink data packet configuration method and device

Provided is a downlink data packet configuration method comprising: determining a target data radio bearer (DRB) corresponding to a downlink data packet to be sent; determining, according to a configured correspondence between a DRB and a downlink processing attribute, a target downlink processing attribute corresponding to the target DRB; encapsulating the downlink data packet with adding a service data adaptation protocol (SDAP) header when the target downlink processing attribute is an attribute of supporting the NAS reflective QoS function or the AS reflective QoS function; and encapsulating the downlink data packet without adding an SDAP header when the target downlink processing attribute is an attribute of neither supporting the NAS reflective QoS function nor the AS reflective QoS function.