CHANNEL STATE INFORMATION ACQUISITION IN A MULTI-USER MULTIPLE-INPUT MULTIPLE-OUTPUT TRANSMISSION SCHEME
    8.
    发明公开
    CHANNEL STATE INFORMATION ACQUISITION IN A MULTI-USER MULTIPLE-INPUT MULTIPLE-OUTPUT TRANSMISSION SCHEME 审中-公开
    多用户多输入多输出传输方案中的信道状态信息获取

    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

    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.