Communication relay method and device

A communication managing device connected by a wired network to a relay device that is connected by a wireless network to a plurality of wireless terminals, the communication managing device comprising:

• requesting means for receiving communication start requests from any of the wireless terminals and sending to the relay device an identifier of the communications that are about to be started and requests for prioritized relay of these communications;
• receiving means for receiving from the relay device responses to these requests, the responses including an indication of whether the communications are prioritized communications or non-prioritized communications, the receiving means receiving the communication identifiers and registering the received communication identifiers in a priority table such that a proportion S/U of a sum S of consumption bandwidths of the communications specified by the communication identifiers registered in the priority table to the available bandwidth U of the wireless network does not exceed a predetermined upper limit;
• and
• notification means for sending notifications to the wireless terminals depending on the content of the response.