Distributed clustering method, device, node, and system

Provided in embodiments of the present invention are a distributed clustering method, a device thereof, a node, and a network system. The method comprises: a network control node determines a working channel on the basis of a working bandwidth, the network control node joins, on the basis of the determined working channel, a cluster that is either on the working channel or on a channel overlapping the working channel and having a channel bandwidth that is less than the channel bandwidth of the working channel, or establishes a cluster either on the working channel or on a channel overlapping the working channel and having a channel bandwidth that is less than the channel bandwidth of the working channel. By means of the method in embodiments of the present invention, transmission of beacon frames is coordinated, thus reducing interference to signal beacon transmission. At the same time, multiple working channel bandwidth selections are flexibly supported, thus increasing system throughput and channel utilization rate.