公开(公告)号：US09635583B2

公开(公告)日：2017-04-25

申请号：US14467874

申请日：2014-08-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tianyu Wu ,  Chen Chen ,  Shuai Hao

IPC: H04W28/02 ,  H04W74/08 ,  H04W84/12

CPC classification number: H04W28/0289 ,  H04W74/085 ,  H04W84/12

Abstract: The invention provides a method, an apparatus and a system for controlling network congestion. 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 can achieve the congestion control for a network before collision occurs to a station, avoiding more serious network congestion caused by each station still contending for a channel after the network congestion occurs; since an access point can send a control frame or a beacon frame to the station when determining that congestion occurs to the current network, to instruct the station which needs to send data to re-determine a backoff time, a rapidly congestion relief of the whole network is achieved, and also a fair channel contention of each station is guaranteed.