Transmission device, receiving device, transmission method and receiving method

A reception apparatus that receives reception signals including control signals transmitted from a transmission apparatus through a first resource region usable for a control channel or a data channel or a second resource region usable for a control channel and receives a series of data being transmitted from the transmission apparatus while being distributed to data resources in N transmission subframes (where Nis a natural number greater than or equal to two), the reception apparatus comprising:

• a detecting section that detects scheduling control signals for the data resources included in the reception signals;
• and
• an extracting section that extracts, from the reception signals, a signal component in a data-component extraction target region corresponding to the data resource in a resource block group (RBG) formed of M resource blocks (RBs) (where M is a natural number greater than or equal to two) including an RB in which the scheduling control signals are detected, the resource block group (RBG) being common between the transmission subframes, wherein
• the extracting section treats a resource region in which the scheduling control signals are detected in the first transmission subframe of the N transmission subframes as the data-component extraction target region in the transmission subframes except for the first transmission subframe.

A transmission method of mapping control signals for a reception apparatus in a first resource region usable for a control channel or a data channel or in a second resource region usable for a control channel, transmitting the mapped signals, and transmitting a series of data to the reception apparatus while distributing the series of data to data resources in N transmission subframes (where N is a natural number greater than or equal to two), the method comprising:

• generating scheduling control signals for the data resources;
• setting the data resources, and a control resource region to which the scheduling control signals are mapped in the first resource region in a resource block group (RBG) being formed of M resource blocks (RBs) (where M is a natural number greater than or equal to two) and being common between the transmission subframes;
• and
• mapping the series of data to the set data resources and mapping the scheduling control signals to the control resource region, wherein
• a resource region set as the control resource region in the first transmission subframe of the N transmission subframes is set as the data resources in the transmission subframes except for the first transmission subframe.

A reception method of receiving reception signals including control signals transmitted from a transmission apparatus through a first resource region usable for a control channel or a data channel or a second resource region usable for a control channel and receiving a series of data being transmitted from transmission apparatus while being distributed to data resources in N transmission subframes (where N is a natural number greater than or equal to two), the method comprising:

• detecting scheduling control signals for the data resources included in the reception signals;
• and
• extracting, from the reception signals, a signal component in a data-component extraction target region corresponding to the data resources in a resource block group (RBG) formed of M resource blocks (RBs) (where M is a natural number greater than or equal to two) including a RB in which the scheduling control signals are detected, the resource block group (RBG) being common between the transmission subframes, wherein
• a resource region in which the scheduling control signals are detected in the first transmission subframe of the N transmission subframes is to be the data-component extraction target region in the transmission subframes except for the first transmission subframe.