Wireless communication method and device

A second station (STA), comprising:

• a processor and a memory,
• wherein the memory is configured to store a computer program, and the processor is configured to call and execute the computer program stored in the memory, to enable the second STA to:
• receive a first Physical Layer Protocol Data Unit (PPDU) sent by a first STA with to-be-transmitted uplink (UL) data,
• wherein the first PPDU comprises a first Media Access Control (MAC) frame and a first identification (ID) field, the first MAC frame is used for channel contention, and the first ID field is used for indicating an Association Identifier (AID) of the first STA;
• or
• the first PPDU comprises a second MAC frame, the second MAC frame is used for channel contention, and the second MAC frame is further used for triggering all STAs receiving the second MAC frame to feed back whether the STAs need to acquire media to transmit UL data respectively.

An Access Point (AP), comprising:

• a processor and a memory,
• wherein the memory is configured to store a computer program, and the processor is configured to call and execute the computer program stored in the memory, to enable the AP to:
• receive a first Physical Layer Protocol Data Unit (PPDU) sent by a first station (STA) with to-be-transmitted uplink (UL) data,
• wherein the first PPDU comprises a first Media Access Control (MAC) frame and a first identification (ID) field, the first MAC frame is used for channel contention, and the first ID field is used for indicating an Association Identifier (AID) of the first STA;
• or
• the first PPDU comprises a second MAC frame, the second MAC frame is used for channel contention, and the second MAC frame is further used for triggering all STAs receiving the second MAC frame to feed back whether the STAs need to acquire media to transmit UL data respectively.