BACKOFF METHOD AND DEVICE USED FOR WIRELESS COMMUNICATION SYSTEM Russian patent published in 2015 - IPC H04W74/08 

FIELD: radio engineering, communication.

SUBSTANCE: embodiments of the present invention provide a backoff method and device used for a lower priority access category AC. The method comprises the following steps: when the lower priority AC and another AC in the same station STA obtain a transmission opportunity TXOP at the same time and an internal collision occurs, detecting a TXOP sharing state of the lower priority AC; and executing backoff of the lower priority AC according to the detected TXOP sharing state.

EFFECT: performing backoff by detecting a transmission opportunity (TXOP) sharing state.

17 cl, 7 dwg, 2 tbl