Patent ID: 9444571
Filing Date: 2016-09-13
CPC Classification: H04J,H04L,H04W

Claim Text:
1. A control information transmission apparatus comprising: an arrangement circuit that arranges control signals for a terminal in resources of a control region of a compatible part and in resources of a control region of an extension part, wherein the control signals are for the terminal in the extension part and the control signals are physical downlink control channels (PDCCH), and a component carrier comprises the compatible part and the extension part, the compatible part and the extension part each comprising a control region; and a transmitter that transmits the arranged control signals for the terminal, wherein the arrangement circuit arranges the control signals for the terminal in the extension part and the compatible part among the resources, the extension part is provided in a frequency band adjacent to the compatible part, the arrangement circuit forms predetermined units of the resources for the control signals and defines numbers which are consecutive from the compatible part to the extension part and are allocated to the predetermined units of the resources, the arrangement circuit makes a plurality of units of the predetermined units of the compatible part correspond to one unit or a plurality of units of the predetermined units of the extension part on the basis of the numbers, and when the control signals for the terminal are arranged in one unit or a plurality of units among the plurality of units of the predetermined units of the compatible part and one unit or a plurality of units of the predetermined units of the extension part, the control signals for the terminal are not arranged in the other units among the plurality of units of the predetermined units of the compatible part, the predetermined units of the resources for the control signal is a Control Channel Element (CCE), and the numbers which are consecutive from the compatible part to the extension part and are allocated to the predetermined units of the resources are CCE numbers.