EFFECTIVE METHOD AND DEVICE FOR TRANSMITTING CONTROL INFORMATION FOR SUPPORTING UPLINK MULTI-ANTENNA TRANSMISSION

摘要

Disclosed is a method for transmitting control information on uplink multi-antenna transmission from a base station and the method includes: transmitting DCI that schedules uplink transmission of a first data block and a second data block through a PDCCH; receiving the first and second data blocks scheduled by the DCI; transmitting information indicating ACK or NACK for the received first and second data blocks, respectively, by using a first PHICH for the first data block and a second PHICH resource for the second data block; receiving a retransmission for a negative-acknowledged data block; and transmitting information indicating ACK or NACK of the retransmission of the negative-acknowledged data block by using the first PHICH resource when the number of negative-acknowledged data blocks is not identical to the number of data blocks that the PDCCH indicates.

主权项

1. A method by a base station (BS) for transmitting hybrid automatic repeat request (HARQ) information in response to uplink Multiple Input Multiple Output (MIMO) transmission, the method comprising:
transmitting, by the BS to a user equipment (UE), HARQ information indicating Acknowledgement (ACK) or Negative-Acknowledgement (NACK) for each of two transport blocks (TBs) including a first TB and a second TB, using a first physical HARQ indicator channel (PHICH) resource for the first TB and using a second PHICH resource for the second TB, wherein the HARQ information for one of the two TBs indicates NACK and the HARQ information for the other of the two TBs indicates ACK; receiving, by the BS from the UE, retransmission of the Negative-Acknowledged TB; and transmitting, by the BS to the UE, HARQ information for the retransmission of the Negative-Acknowledged TB using the first PHICH resource.