The application relates to a preemption mechanism for wireless local area networks (WLANs), and in particular provides a method, including: broadcasting information about a Transmission Opportunity (TXOP) on a wireless channel, wherein the TXOP includes two or more transmission durations and a preemption period exists between any two neighboring transmission durations of the two or more transmission durations; and pausing communicating on the wireless channel during the preemption period to give opportunity for one or more stations (STAs) to preempt the wireless channel to transmit high priority traffic.
展开▼
