Patent ID: 8750325
Filing Date: 2014-06-10
Classification: H04B,H04L

Abstract:
1. A reception apparatus comprising: a receiver configured to receive, via a plurality of antennas, a plurality of streams multiplied with a plurality of weights by a transmission apparatus; an acknowledgment/negative acknowledgment (ACK/NACK) generator configured to generate ACK/NACK information based on an error detected in the plurality of streams; a channel quality information (CQI) generator configured to generate CQI indicative of propagation path quality of the plurality of streams; and a transmitter configured to transmit the ACK/NACK information and the CQI to the transmission apparatus, wherein, in case the NACK information is generated to require retransmission from the transmission apparatus, the plurality of weights to be multiplied with the plurality of streams, respectively, by the transmission apparatus are rearranged between an initial transmission and the retransmission by the transmission apparatus based on the CQI received from the reception apparatus.