Method and device for categorising data streams passing between a station and an access point serving the station

A device for categorizing data streams passing between a station and an access point serving the station to determine whether the station served by the access point can change access point serving it, the access point being included in a node forming part of a local area network comprising a plurality of nodes allowing an extension of wireless communication coverage in order to increase the range of the local area network by coordinating a plurality of access points incorporated in the nodes, wherein the device is included in the access point serving the station, and comprises:

• means for identifying, from an identifier of the source and/or from the destination of the data, each data stream passing between the station and the access point,
• means for measuring, for each data stream, the quantity of data passing between the station and the access point,
• means for calculating, for each data stream, a mean from the measurements for the stream,
• means for categorizing each data stream as an interruptible data stream if the mean of the data streams is lower than a first predetermined threshold,
• means for determining that the station served by the access point can be served by another access point if each stream passing between the station and the access point is categorized as an interruptible data stream.