Patent ID: 9553646
Date: 2017-01-24
CPC Classifications: H04B,H04L

Claim:
1. A wireless communication device comprising: an estimating unit that receives a known signal transmitted from a transmission device, and that estimates a channel between the transmission device and the wireless communication device and a reception signal quality; an identifying unit that identifies a rank of a propagation path based on the channel estimated by the estimating unit; a first determining unit that determines number of data streams based on the reception signal quality estimated by the estimating unit and the rank identified by the identifying unit; a second determining unit that determines a precoding matrix based on the reception signal quality estimated by the estimating unit and the number of data streams determined by the first determining unit; and a transmitting unit that transmits information about the number of data streams determined by the first determining unit and the precoding matrix determined by the second determining unit to the transmission device.