A medium streaming distribution system reduces effects of packet loss in a
network before the packet reaches radio base station. A medium
distribution device for packet-transmits via the base station, a medium
stream to the network by a real time transmission protocol. A packet
analyzer monitors the packet arriving at the radio base station and
transmits feedback information associated with loss of a packet to the
medium distribution device. Based on the feedback from a relay device and
a terminal device of the medium stream, the transmission rates from the
medium distribution device to the relay device and from the relay device
to the terminal device are obtained to provide a greater transmission
rate in a surplus band for re-transmission or a forward error correction.