| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To construct a retransmission system as social infrastructure equipment inexpensively by superposing a mobile communication system onto a retransmission system in a broadcast system. <P>SOLUTION: In an extended radio base station system comprising a master base station for mobile communications and an extended radio base station that is connected to the master base station via a communication line and that has a radio transmitting/receiving function for the mobile communications, by receiving a broadcast wave, superposing a broadcast signal obtained from the received broadcast wave onto a mobile communication signal sent from the master base station to the extended radio base station, transmitting the resultant signal to the extended radio base station, and separating the broadcast signal from the superposed and transmitted signal and retransmitting the resultant signal as a broadcast wave in the extended radio base station. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
