Patent ID: 9673881
Date: 2017-06-06
CPC Classifications: H04B,H04W

Claim:
1. A terminal device that receives radio signals on which pre-coding is performed and which are space-multiplexed, from a base station device including multiple antennas, the terminal device comprising: circuitry; and a memory associated with the circuitry; wherein the circuitry estimates channel state information on a channel between the terminal device and the base station device; the circuitry acquires a linear filter that is calculated in the base station device; the circuitry performs channel equalization processing on the radio signals that are received at a first point in time, based on the channel state information at a second point in time that precedes the first point in time and on the linear filter; the circuitry generates feedback information which includes the channel state information at the second point in time; the circuitry notifies the base station device of the feedback information; the circuitry transmits a reference signal to the base station device; and the circuitry performs channel equalization processing on the radio signals received at the first point in time, based on a channel gain at the second point in time between the terminal device and the base station device and on a channel estimate that is obtained from the linear filter calculated in the base station device.