RELAY UNIT, COMMUNICATION TERMINAL AND COMMUNICATION METHOD

摘要

A relay unit (110) is provided with a communication network I/F (113) for receiving IP packets from a communication terminal (120A) on a transmitting side through a communication network (101); a broadcast wave I/F (114) for transmitting the IP packets received through the communication network I/F (113) to a communication terminal (120B) on a receiving side through a digital broadcast wave; and a transmitting/receiving section (111) for broadcasting the IP packets, which are transmitted from the communication terminal (120A) on the transmitting side and received at the communication network I/F (113), to the communication terminal (120B) on the receiving side from the broadcast wave I/F (114).