公开(公告)号：EP3320625A1

公开(公告)日：2018-05-16

申请号：EP15751026.4

申请日：2015-08-20

申请人： Huawei Technologies Co., Ltd.

发明人： DESTOUNIS, Apostolos ,  MASO,Marco

IPC分类号： H04B7/04 ,  H04W72/12

CPC分类号： H04B7/0452

摘要： Provided is a multi-user multiple-input multiple-output (MU-MIMO), transmitter, adapted to acquire channel state information (CSI), from a plurality of receivers. The transmitter is configured to operate a radio antenna array to establish signal paths between antennas of the antenna array and a plurality of receivers. The transmitter comprises a mapper configured to dynamically group, for a given time interval, the plurality of receivers to MU-MIMO groups, wherein the grouping is based on information indicating correlations between signal paths from the antennas to the receivers and a transmission priority of each receiver. The transmitter further comprises a selector configured to select, for the given time interval, receivers from which CSI is to be received, and to identify one or more of the MU-MIMO groups based on the selected receivers.