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1. (WO2018220772) WIRELESS BASE STATION AND WIRELESS COMMUNICATION METHOD

Pub. No.:    WO/2018/220772    International Application No.:    PCT/JP2017/020362
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Thu Jun 01 01:59:59 CEST 2017
IPC: H04W 72/04
Applicants: NTT DOCOMO, INC.
株式会社NTTドコモ
Inventors: MATSUMURA, Yuki
松村 祐輝
TAKEDA, Kazuki
武田 一樹
NAGATA, Satoshi
永田 聡
Title: WIRELESS BASE STATION AND WIRELESS COMMUNICATION METHOD
Abstract:
The purpose of the present invention is to appropriately communicate UL control information in future wireless communication systems. The wireless base station according to one embodiment of the present invention is characterized by having: a transmission unit that transmits candidate set information that indicates a plurality of phase rotation amounts that have been respectively associated with a plurality of candidate values for UCI; a reception unit that, on the basis of the candidate set information, receives a UL signal that is transmitted using a phase rotation amount that is associated with a value for UCI; and a control unit that controls determination of the value of the UCI on the basis of the UL signal. The wireless base station is also characterized in that the plurality of phase rotation amounts are evenly spaced.