Efficient control information transmission method and apparatus for supporting multiple antenna transmission technique

摘要

The present invention relates to a wireless communication system and provides an efficient control information transmission method and apparatus for supporting a multiple antenna transmission technique. A method is provided for transmitting downlink hybrid automatic repeat request (HARQ) information related to an uplink multiple codeword transmission and includes receiving the uplink multiple codeword transmission, generating HARQ information related to each of the multiple codewords based on a result of decoding each of the multiple codewords, modulating the HARQ information, and transmitting the modulated HARQ information via one or more physical HARQ indicator channels (PHICHs).

主权项

1. A method of transmitting a physical uplink shared channel (PUSCH) by a user equipment (UE) in a wireless communication system, the method comprising:
transmitting a first codeword (CW) and a second CW to a base station (BS) via the PUSCH; receiving downlink control information (DCI) from the BS via a physical downlink control channel (PDCCH), the DCI including a first new data indicator (NDI) field corresponding to the first CW, a second NDI field corresponding to the second CW, a first redundancy version (RV) field for the first CW, a second RV field for the second CW, a PUSCH resource block allocation field, a transmit power control (TPC) command for the PUSCH, a cyclic shift field for a demodulation reference signal (DMRS), a channel state information (CSI) request field and a precoding information field; and retransmitting at least the first CW or the second CW when at least the first NDI field or second NDI field has not been toggled.