BROADCASTING RETRANSMITTING METHOD AND BROADCASTING RETRANSMITTING APPARATUS, BROADCASTING DISPLAY APPARATUS AND BROADCASTING RETRANSMITTING SYSTEM USING THE SAME

摘要

PURPOSE: A broadcasting retransmission method is provided to supply information about retransmitted frequency bandwidth without additional spectrum sensing. CONSTITUTION: A host TV performs spectrum sensing about an idle band among not authorized band(S510). The host TV allocates a band by broadcasting channel to one part or the whole part among the idle bandwidth if the host TV searches the idle bandwidth through the spectrum sensing(S515). The host TB retransmits broadcasting by allocated band to a mobile phone(S520). The shot TV transmits the allocated band information to the mobile phone through an interactive channel(S525).