公开(公告)号：US20160065282A1

公开(公告)日：2016-03-03

申请号：US14786854

申请日：2014-05-28

申请人： Yu ZHANG ,  Wei CHAO ,  Peng CHENG ,  Neng WANG ,  Jilei HOU ,  QUALCOMM INCORPORATED

发明人： Yu ZHANG ,  Wei CHAO ,  Peng CHENG ,  Neng WANG ,  Jilei HOU

IPC分类号： H04B7/04 ,  H04W16/10 ,  H04L1/00

摘要： Certain aspects of the present disclosure provide methods and apparatus for linear precoding in full-dimensional MIMO (FD-MIMO) systems. According to aspects, an eNB may compress a larger number of antenna elements to a smaller number of antenna ports. The eNB may use a port precoding matrix to transmit reference signals to a UE, receive feedback regarding CSI based on the reference signals, and transmit data to the UE, based on a mapping of multiple data layers and mapping of antenna ports to the physical antenna elements. Further, aspects include performing elevation beamforming by dynamically forming one or more vertical sectors based on UE feedback in the elevation domain.

摘要翻译： 本公开的某些方面提供了在全维MIMO（FD-MIMO）系统中用于线性预编码的方法和装置。 根据方面，eNB可以将较大数量的天线元件压缩到较少数量的天线端口。 eNB可以使用端口预编码矩阵来向UE发送参考信号，基于参考信号接收关于CSI的反馈，并且基于多个数据层的映射以及将天线端口映射到物理天线来向UE发送数据 元素。 此外，方面包括通过基于仰角域中的UE反馈动态地形成一个或多个垂直扇区来执行提升波束成形。

公开(公告)号：US20200052759A1

公开(公告)日：2020-02-13

申请号：US16336986

申请日：2016-09-30

申请人： Yu ZHANG ,  Wanshi CHEN ,  Chao WEI ,  Hao XU ,  QUALCOMM INCORPORATED

发明人： Yu ZHANG ,  Wanshi CHEN ,  Wei CHAO ,  Hao XU

IPC分类号： H04B7/06 ,  H04L5/00 ,  H04W24/10 ,  H04W80/08 ,  H04W76/30

摘要： Certain aspects of the present disclosure provide techniques for dynamic switching of reference transmission schemes used by a UE for CSI measurement and reporting.

公开(公告)号：US20200014437A1

公开(公告)日：2020-01-09

申请号：US16573304

申请日：2019-09-17

申请人： QUALCOMM Incorporated

发明人： Yu ZHANG ,  Wei CHAO ,  Peng CHENG ,  Neng WANG ,  Jilei HOU

IPC分类号： H04B7/0456 ,  H04L1/00 ,  H04W16/10 ,  H04B7/0426

摘要： Certain aspects of the present disclosure provide methods and apparatus for linear precoding in full-dimensional MIMO (FD-MIMO) systems. According to aspects, an eNB may compress a larger number of antenna elements to a smaller number of antenna ports. The eNB may use a port precoding matrix to transmit reference signals to a UE, receive feedback regarding CSI based on the reference signals, and transmit data to the UE, based on a mapping of multiple data layers and mapping of antenna ports to the physical antenna elements. Further, aspects include performing elevation beamforming by dynamically forming one or more vertical sectors based on UE feedback in the elevation domain.