Patent ID: 9313007
Filing Date: 2016-04-12
CPC Classification: H04B,H04J,H04L,H04W

Claim Text:
1. A wireless apparatus which estimates channel information between a plurality of transmission ports and receive antennas of a communication partner in communication based on an orthogonal frequency-division multiplexing scheme, the wireless apparatus comprising: an iterative coefficient setting unit which sets an iterative coefficient representing the number of transmission ports which share a plurality of frequency channels of training signals for estimating the channel information for the plurality of transmission ports; a training signal generating unit which allocates frequency channels to each transmission port so as to satisfy the iterative coefficient set by the iterative coefficient setting unit and generates L (L is a positive integer) training signals based on the allocated frequency channels; a wireless transmitting unit which outputs the training signals generated by the training signal generating unit to transmit antennas; a channel information acquiring unit which acquires channel information estimated from the training signals transmitted by the transmit antennas from the communication partner for the frequency channels allocated to each transmission port; and a channel information interpolating unit which interpolates channel information of a remaining frequency channel other than the frequency channels allocated to each transmission port among the plurality of frequency channels from the acquired channel information.