Method of transmitting control information and device for same

摘要

The present invention relates to a wireless communication system. In more detail, a method for performing HARQ (hybrid automatic repeat request) retransmission by a communication device in a wireless communication system, the method comprising: initially transmitting a data block to a Base Station (BS); attempting PDCCH (physical downlink control channel detection) in a predetermined time interval including a plurality of subframes after transmission of an uplink channel signal; and retransmitting the data block when a PDCCH signal indicating retransmission of the data block is detected in the predetermined time interval, wherein reception of a PHICH (physical hybrid ARQ indicator channel) corresponding to initial transmission of the data block is skipped.

主权项

1. A method for performing HARQ (hybrid automatic repeat request) retransmission by a communication device in a wireless communication system, the method comprising:
initially transmitting a data block to a Base Station (BS); attempting a detection of PDCCH (physical downlink control channel) in a predetermined time interval including a plurality of subframes after transmission of an uplink channel signal; and retransmitting the data block using a resource indicated by the PDCCH, wherein a retransmission is indicated by a physical hybrid ARQ indicator channel (PHICH) when the user equipment (UE) is a first type UE, and wherein, when the UE is a second type UE, the retransmission is indicated by a HARQ index included in the PDDCH and a reception of a PHICH corresponding to the retransmission is skipped.