COMMUNICATION TERMINAL, COMMUNICATION METHOD, PROGRAM, AND INTEGRATED CIRCUIT

摘要

A communication terminal (100) is one of a plurality of communication terminals that constitute an ALM (Application Layer Multicast) delivery tree where each communication terminal has a respective one master terminal and no or one or more slave terminals allocated to that communication terminal and where retransmitted data of stream data is sequentially transmitted from the master terminal to the slave terminal. The communication terminal (100) comprises: a reproduction delay time determining unit (1010) that determines a reproduction delay time by use of the maximum one of round-trip delay times that are necessary to transmit and receive data along the sections between respective two adjacent terminals on the ALM delivery tree and that are related to the sections from a root terminal to the communication terminal (100); and a reproduction control unit (1020) that delays, by the reproduction delay time determined by the reproduction delay time determining unit (1010), and reproduces the stream data received from the root terminal.