Abstract
Disclose in the system for sending the control information of E PDCCH, the conflict of ACK/NACK can be avoided, and improve the utilization ratio of ACK/NACK resources, suppress the wireless communication terminal of the unhelpful reduction of the frequency band of PUSCH.The structure that wireless communication terminal uses includes：Receiving unit, by configuring the enhancing Physical Downlink Control Channel (E PDCCH) that have sent using any from one or more configure in candidate, receives the control signal for containing ACK/NACK marks；Control unit, the configuration information and ACK/NACK marks of the E PDCCH that the transmission based on the E PDCCH uses in receiving, the resource that selection uses the ack/nack signal of downlink data from preassigned specified resource；And transmitting element, send the ack/nack signal using the selected specified resource.
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