Method and apparatus for transmitting uplink feedback information unit based on pdcp duplication state in wireless communication system

A user equipment (UE) in a wireless communication system, the UE comprising:

• at least one transceiver;
• at least one processor;
• and
• at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed, cause the at least one processor to perform operations comprising:
• receiving information about whether a Packet Data Convergence Protocol (PDCP) duplication for downlink is activated or not;
• receiving at least one data unit from a network;
• determining whether the status report related to the at least one data unit is triggered or not, based on whether the PDCP duplication for the downlink is activated or not;
• and
• transmitting the triggered status report related to the at least one data unit,
• wherein, based on the PDCP duplication for the downlink being activated, the status report related to the at least one data unit is not triggered.

An apparatus for a user equipment (UE), the apparatus comprising:

• at least one processor;
• and
• at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed, cause the at least one processor to perform operations comprising:
• receiving information about whether a Packet Data Convergence Protocol (PDCP) duplication for downlink is activated or not;
• receiving at least one data unit from a network;
• determining whether the status report related to the at least one data unit is triggered or not, based on whether the PDCP duplication for the downlink is activated or not;
• and
• transmitting the triggered status report related to the at least one data unit,
• wherein, based on the PDCP duplication for the downlink being activated, the status report related to the at least one data unit is not triggered.

A computer readable storage medium storing at least one computer program comprising instructions that, when executed by at least one processor, cause the at least one processor to perform operations for a user equipment (UE), the operations comprising:

• receiving information about whether a Packet Data Convergence Protocol (PDCP) duplication for downlink is activated or not;
• receiving at least one data unit from a network;
• determining whether the status report related to the at least one data unit is triggered or not, based on whether the PDCP duplication for the downlink is activated or not;
• and
• transmitting the triggered status report related to the at least one data unit,
• wherein, based on the PDCP duplication for the downlink being activated, the status report related to the at least one data unit is not triggered.