| 摘要 |
Embodiments of the present invention provide a method, an apparatus and a system for controlling network congestion, so as to rapidly reduce the congestion level of the network and improve the efficiency of congestion control. The method includes: sending a control frame or a beacon frame to a station in a network when network congestion occurs, so as to instruct the station to enlarge a contention window when the station needs to send data. The method provided by embodiments of the present invention can achieve the congestion control for a network before collision occurs to a station, thereby avoiding more serious network congestion caused by each station still contending for a channel after the network congestion occurs; in another aspect, since an access point can send a control frame or a beacon frame to the station in the network when determining that congestion occurs to the current network, so as to instruct the station which needs to send data to re-determine a backoff time when receiving the control frame or the beacon frame, a rapidly congestion relief of the whole network is achieved from the overall situation, and also a fair channel contention of each station, after re-determining a backoff time, is guaranteed. |
