- 专利标题: Hybrid class B FD-MIMO
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申请号: US16088285申请日: 2017-05-10
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公开(公告)号: US11177862B2公开(公告)日: 2021-11-16
- 发明人: Chao Wei , Yu Zhang , Bo Chen , Jilei Hou
- 申请人: QUALCOMM Incorporated , Chao Wei , Yu Zhang , Bo Chen , Jilei Hou
- 申请人地址: US CA San Diego; CN Beijing; CN Beijing; CN Beijing; US CA San Diego
- 专利权人: QUALCOMM Incorporated,Chao Wei,Yu Zhang,Bo Chen,Jilei Hou
- 当前专利权人: QUALCOMM Incorporated,Chao Wei,Yu Zhang,Bo Chen,Jilei Hou
- 当前专利权人地址: US CA San Diego; CN Beijing; CN Beijing; CN Beijing; US CA San Diego
- 代理商 Liem T. Do
- 优先权: WOPCT/CN2016/081854 20160512
- 国际申请: PCT/CN2017/083767 WO 20170510
- 国际公布: WO2017/193934 WO 20171116
- 主分类号: H04W4/00
- IPC分类号: H04W4/00 ; H04B7/0452 ; H04B7/0417 ; H04B7/0456 ; H04B7/06 ; H04L5/00
摘要:
A hybrid class B channel state information (CSI) reference signal (CSI-RS) scheme is discussed which configures one cell-common beamformed CSI-RS resource for beam tracking and another UE-specific beamformed CSI-RS resource for CSI feedback. The cell-common beamformed CSI-RS resource may be transmitted at a longer periodicity and shared by user equipments (UEs) in the cell. The beamforming may be cycled over a set of predefined weights transparent to UE. The UE-specific beamformed CSI-RS may be transmitted at a shorter periodicity and can be activated dynamically to allow resource sharing among multiple UEs. The UEs will report a CSI for the cell-common beamformed CSI-RS resource which provides a quality indicator for the associated cell-common beam and is utilized by the base station to determine the precoding weight for the UE-specific beamformed CSI-RS resource. Both resources can be configured with different parameter sets, such as number of ports, codebook type, and CSI reporting parameters.
公开/授权文献
- US20200304178A1 HYBRID CLASS B FD-MIMO 公开/授权日:2020-09-24
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