This application provides a communication method, a communication apparatus, and a communication system. The method includes: allocating an uplink transmission resource to an LLT STA in a transmit opportunity window available for transmitting a non-low latency traffic frame, to transmit an uplink low latency traffic frame or a low latency traffic report frame, so as to implement preemption transmission of low latency traffic, ensure timely sending of the low latency traffic, and help improve user experience.