Search International and National Patent Collections

1. (WO2017154996) BASE STATION

Pub. No.:    WO/2017/154996    International Application No.:    PCT/JP2017/009305
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Thu Mar 09 00:59:59 CET 2017
IPC: H04B 7/0452
H04W 16/28
H04W 28/18
H04W 88/08
Applicants: NTT DOCOMO, INC.
Inventors: OBARA, Tatsunori
小原 辰徳
SUYAMA, Satoshi
須山 聡
OKUYAMA, Tatsuki
奥山 達樹
OKUMURA, Yukihiko
奥村 幸彦
Provided is a base station for performing communication with a plurality of mobile stations in a wireless communication system that supports a multi-user MIMO and is provided with the base station and the plurality of mobile stations, wherein the base station has: a determination unit for determining, on the basis of an estimated channel value with each of the plurality of mobile stations, the number of a plurality of steams transmitted to each the plurality of mobile stations and a parameter applied to each of the plurality of streams transmitted to each of the plurality of mobile stations; and a transmission unit for generating a plurality of streams the number of which is determined in accordance with the parameter determined by the determination unit, and transmitting the streams to each of the plurality of mobile stations.