A reception terminal is provided in a communication system including a transmission terminal that transmits packets in a real-time stream and a transfer terminal that caches and transfers packets transmitted from the transmission terminal. The reception terminal includes a receiver which receives packets, and circuitry which obtains a first available band between the reception terminal and the transfer terminal and a second available band between the reception terminal and the transmission terminal. The reception terminal includes a transmitter which transmits requests to the transfer terminal at a frequency that is based on the first available band, wherein the frequency defines how often the requests are transmitted and the requests trigger transmission of packets from the transfer terminal to the reception terminal in the first available band. The transmitter notifies the transmission terminal of the second available band to trigger transmission of packets from the transmission terminal in the second available band.