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 at a user equipment (UE) for performing uplink Multiple Input Multiple Output (MIMO) transmission, the method comprising:
transmitting, by the UE to a base station (BS), retransmission of one Negative-Acknowledged transport block (TB) among a first TB and a second TB; and receiving, by the UE from the BS, hybrid automatic repeat request (HARQ) information for the retransmission of the Negative-Acknowledged TB using a fixed physical HARQ indicator channel (PHICH) resource, regardless of which PHICH resource was used to receive HARQ information indicating Acknowledgement (ACK) or Negative-Acknowledgement (NACK) for each of the first TB and the second TB among first and second PHICH resources, wherein the fixed PHICH resource is the first PHICH resource which was used to receive HARQ information indicating the ACK or the NACK for the first TB, wherein the second PHICH resource was used to receive HARQ information indicating the ACK or the NACK for the second TB.