Broadcast station, base station control device, receiver, control method, receiving method, broadcast system, reception program, transmission program, distribution program, and storage medium

摘要

A portable terminal includes: a radio frequency receiving section for receiving main broadcast data and sub broadcast data; an electric field strength measuring section for measuring an electric field strength corresponding to a receiving condition of the radio frequency receiving section; a reception quality determining section for determining reception quality based on a comparison between the electric field strength measured by the electric field strength measuring section and a predetermined threshold of required quality; a decoder, a display section, and a speaker for reproducing the main broadcast data or sub broadcast data; and a switching section for reproducing main broadcast data corresponding to a designated channel acquired by a designated channel acquiring section, when the reception quality determining section determines the reception quality to be good, and sub broadcast data corresponding to a designated channel acquired by the designated channel acquiring section, when the reception quality determining section determines the reception quality to be no good. With this arrangement, an operation of transmitting or receiving a retransmission request will not be required, and the communication channels can be used efficiently. As a result, customer satisfaction is improved.