Method and device for txop sharing for multiple users in wireless lan system

A station (STA) comprising:

• a transceiver;
• a memory;
• and
• at least one processor operatively coupled to the transceiver and the memory,
• wherein the memory stores instructions that, based on being executed by the at least one processor, perform operations comprising:
• receiving a transmission opportunity (TXOP) sharing (TXS) trigger frame comprising a plurality of user information fields, wherein each of the plurality of user information fields indicates a corresponding allocation duration among a plurality of allocation durations within a TXOP duration related to the TXS trigger frame;
• identifying at least one allocation duration of the STA based on at least one user information field for the STA among the plurality of user information fields;
• determining a start time of a first allocation duration among the at least one allocation duration based on at least one of order information or a basic trigger frame;
• and
• transmitting data in the first allocation duration after the start time.

An access point (AP) comprising:

• a transceiver;
• a memory;
• and
• at least one processor operatively coupled to the transceiver and the memory,
• wherein the memory stores instructions that, based on being executed by the at least one processor, perform operations comprising:
• obtaining a transmission opportunity (TXOP);
• configuring a user information list field of a TXOP sharing (TXS) trigger frame related to the TXOP, wherein the user information list field comprises a plurality of user information list fields, and each of the plurality of user information fields indicates a corresponding allocation duration among a plurality of allocation durations within the TXOP;
• and
• transmitting the TXS trigger frame,
• wherein the plurality of user information fields comprise at least one user information field for a STA indicating at least one allocation duration of the STA, and
• wherein a start time of a first allocation duration among the at least one allocation duration is determined based on at least one of order information or a basic trigger frame.