Provided are a data sending and receiving method and apparatus and a storage medium. The methods include sending a wireless signal that includes a trigger frame to one or more second communication nodes. The trigger frame is configured to trigger one or more second communication nodes to start transmission. The wireless signal carries at least one of first identifier information, second identifier information or third identifier information. The first identifier information is used to identify the sender of the trigger frame. The second identifier information is used to identify the receiver of the trigger frame. The third identifier information is used to identify that the trigger frame is configured to trigger the second communication node to start transmission.