A wireless communication system including a wireless relay station
storing a priority table in which identifiers of the communications that
are relayed with higher priority are registered, a wireless relay device
relaying communications specified by the communication identifiers
registered in the priority table with higher priority than other
communications, a stream server receiving communication start requests
from any of the wireless terminals and sends to the wireless relay
station communication identifiers specifying the communications that are
about to be started, and requests registration in the priority table, and
a wireless relay station registering the communication identifiers whose
registration has been requested in the priority table, such that a
proportion S/U of a sum S of consumption bandwidths of the communications
specified by communication identifiers registered in the priority table
to the available bandwidth U of the wireless network does not exceed a
predetermined upper limit.