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1. (WO2018221431) WIRELESS DEVICE AND WIRELESS COMMUNICATION METHOD

Pub. No.:    WO/2018/221431    International Application No.:    PCT/JP2018/020260
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Tue May 29 01:59:59 CEST 2018
IPC: H04B 7/0456
H04B 7/06
H04B 17/309
H04W 16/28
Applicants: NEC CORPORATION
日本電気株式会社
Inventors: SHIKIDA, Jun
式田 潤
ISHII, Naoto
石井 直人
Title: WIRELESS DEVICE AND WIRELESS COMMUNICATION METHOD
Abstract:
Provided is a wireless device for ensuring separation performance of spatially multiplexed signals while still improving channel estimation accuracy. A wireless device according to the present invention is provided with: a first weight multiplication unit; a channel estimation unit; a channel response conversion unit; and a second weight generation unit. The first weight multiplication unit has a first weight corresponding to each of a plurality of beams and multiplies, by the first weight, a signal corresponding to a reference signal transmitted from a wireless terminal. The channel estimation unit estimates a first channel response to each of the plurality of beams using the signal multiplied by the first weight. The channel response conversion unit converts the first channel response into a second channel response using the first weight. The second weight generation unit generates, using the second channel response, a second weight used for wireless communication with the wireless terminal.