| CPC H04L 1/0047 (2013.01) [H04L 5/001 (2013.01); H04L 5/0053 (2013.01); H04L 5/0096 (2013.01); H04L 27/2634 (2013.01); H04W 72/0453 (2013.01); H04W 72/20 (2023.01); H04W 72/23 (2023.01); H04L 1/1829 (2013.01)] | 3 Claims |

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1. An integrated circuit, comprising:
addition circuitry, which, in operation, controls adding a first component carrier (CC); and
transmitting circuitry, which, in operation, controls transmitting configuration information relating to the first CC;
wherein
the first CC is identified based on the configuration information,
the first CC is related to a second CC based on the configuration information, the second CC used for a transmission of physical downlink control information (PDCCH) indicating a resource allocation information for data transmitted in the first CC,
the first CC is related to a carrier indicator field (CIF) value used for a cross carrier scheduling based on the configuration information, and
when the first CC related to the CIF value is added, a relation between other CCs and other CIF values is maintained.
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