发明授权
- 专利标题： Technology for CSI feedback in a MIMO communication system
- 专利标题（中）： MIMO通信系统中的CSI反馈技术
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申请号： US13994745申请日： 2011-12-19
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公开(公告)号： US09319118B2公开(公告)日： 2016-04-19
- 发明人: Yuan Zhu , Xiaogang Chen , Qinghua Li
- 申请人： Yuan Zhu , Xiaogang Chen , Qinghua Li
- 代理机构： Thorpe North & Western LLP
- 国际申请： PCT/US2011/065853 WO 20111219
- 国际公布： WO2012/148478 WO 20121101
- 主分类号： H04B7/04
- IPC分类号： H04B7/04 ; H04B7/06 ; H04L1/00
摘要：
Technology for channel state information (CSI) feedback in a multiple-input multiple-output (MIMO) communication system is disclosed. A method comprises receiving, at a mobile device, a dynamic channel state information (CSI) feedback switch signal from a transmission station that identifies a selected CSI feedback state for the mobile device. A process for selecting a precoding matrix indicator (PMI) and a rank indicator is identified based on the CSI feedback switch signal as either a process configured for MU-MIMO reception or single-user (SU) MIMO reception of a downlink signal at the mobile device.
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