Patent ID: 8755332

Claim:
A radio communication apparatus comprising: a coding section configured to jointly code a carrier indicator of a basic frequency block assigned to a downlink shared channel signal and time resource data assigned to a downlink control channel signal corresponding to the downlink shared channel signal; a control channel signal generation section configured to generate a downlink control signal including the coded carrier indicator as the downlink control channel signal corresponding to the downlink shared channel signal; and a transmission section configured to transmit the generated downlink control channel signal by a basic frequency block assigned to the downlink control channel signal, wherein the coding section comprises a coding table in which the carrier indicator is defined by an amount of shift from the basic frequency block assigned to the downlink control channel signal to the basic frequency block assigned to the downlink shared channel signal, and the time resource data of the downlink control channel signal is defined by the number of symbols, (x, y), x being the amount of shift and Y being the number of symbols, is determined for each basic frequency block set aggregating basic frequency blocks, and a same code is assigned to (x, y) that is common between basic frequency block sets.