Invention Grant
US09455801B2 Method and apparatus for efficiently transmitting control information to support uplink multiple antenna transmission 有权
用于有效发送控制信息以支持上行链路多天线传输的方法和装置

Method and apparatus for efficiently transmitting control information to support uplink multiple antenna transmission
Abstract:
The present invention relates to a method for transmitting control information regarding uplink multiple antenna transmission may comprise the steps of: transmitting DCI for scheduling the uplink transmission of a plurality of data blocks through a PDCCH; receiving the plurality of data blocks scheduled by the DCI; transmitting information which indicates positive acknowledgement or negative acknowledgement to each of the plurality of received data blocks through the PHICH; and receiving retransmission for the negative acknowledged data blocks. When the number of the negative-acknowledged data blocks is not equal to the number data blocks indicated in the PDCCH, a pre-coding matrix, which is for the number of transmission layers equivalent to that of layers corresponding to the negative-acknowledged data blocks, may be used for retransmission.
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