Communication method and apparatus

A communication apparatus, comprising:

• at least one processor;
• and one or more memories coupled to the at least one processor and storing instructions that, when executed by the at least one processor, cause the communication apparatus to perform operations comprising:
• determining that first transmission is suspended, wherein a suspension moment of the first transmission is earlier than a transmission end moment when the first transmission is not suspended;
• receiving a block acknowledgment request frame sent by a first device, wherein the block acknowledgment request frame requests the communication apparatus to send a block acknowledgment frame, and the block acknowledgment frame indicates a receiving status of an access control layer protocol data unit in the first transmission;
• and
• sending the block acknowledgment frame to the first device,
• wherein the receiving a block acknowledgement request frame sent by a first device comprises:
• receiving, by the communication apparatus before the first transmission is suspended, the block acknowledgement request frame carried in a physical layer protocol data unit in the first transmission.

A communication method performed by a first device, comprising:

• sending a block acknowledgment request frame to a second device, wherein the block acknowledgment request frame requests the second device to send a block acknowledgment frame, the block acknowledgment frame indicates a receiving status of an access control layer protocol data unit in first transmission, the first transmission is suspended at a first moment, and the first moment is earlier than a transmission end moment when the first transmission is not suspended;
• receiving the block acknowledgment frame sent by the second device;
• and
• starting, by the first device at a second moment, to perform second transmission, wherein a transmission priority of the second transmission is higher than a transmission priority of the first transmission, and the second moment is later than a transmission end moment of the block acknowledgment frame,
• wherein the sending a block acknowledgement request frame to a second device comprises:
• sending the block acknowledgement request frame to the second device at a third moment, wherein the third moment is later than the first moment, and the third moment is earlier than the transmission end moment when the first transmission is not suspended.