Indication method for large bandwidth system physical ascending control channel

The invention provides a PUCCH indication method for large bandwidth system. Physical uplink control channel PUCCH resource transmits uplink mixed automatic retransmission request confirmation and corresponds to dynamically dispatched physical downlink sharing channel; index number of uplink component carrier frequency of physical uplink control channel PUCCH resource is mapped by downlink component carrier frequency index of physical downlink control channel PDCCH for dispatching the PDSCH to acquire, or a fixed value, or notified by high level signaling or physical signaling. Index number of uplink component carrier frequency of PUCCH resource for uplinkly transmitting HARQ-ACK corresponding to semi-static scheduled PDSCH is mapped and acquired by downlink component carrier frequency index number of PDSCH or notified by high level signaling. The invention guarantees compatibility of LTE-Advanced system and LTE Release-8 system, facilitates to increase system capacity and schedulingagility of LTE-Advanced system.