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    • 10. 发明授权
    • Method and system for spatial CSI feedback for coordinated multi-point processing (CoMP)
    • 用于协调多点处理(CoMP)的空间CSI反馈方法和系统
    • US08798551B2
    • 2014-08-05
    • US13310348
    • 2011-12-02
    • Yifei YuanDavid Huo
    • Yifei YuanDavid Huo
    • H04B1/00H04B7/00
    • H04B7/0417H04B7/024H04B7/0626
    • Spatial discrimination information is fed back at both the multi-antenna transmitter and the multi-antenna receiver connecting a UE and cells within a CoMP measurement set. With the UE feeding back the transmitter and the receiver side spatial discrimination information of each cell-to-UE connection, the composite spatial CSI over multiple sites/nodes can be determined. The approach is applicable for UEs with single or multiple receiving antennas, and the spatial discrimination information can be wideband long-term or subband short-term. In some embodiments, the spatial discrimination information at the receiver side is derived from the actual spatial channel while receiver implementation is taken into account. The spatial discrimination information at the transmitter and at the receiver can be fed back using codebooks for MIMO precoding.
    • 在多天线发射机和连接UE和CoMP测量集合中的小区的多天线接收机之间反馈空间鉴别信息。 通过UE反馈每个小区到UE连接的发射机和接收机侧空间辨别信息,可以确定多个站点/节点上的复合空间CSI。 该方法适用于具有单个或多个接收天线的UE,空间辨别信息可以是宽带长期或子带短期。 在一些实施例中,接收机侧的空间辨别信息是从实际的空间信道导出的,而接收机实现被考虑在内。 可以使用用于MIMO预编码的码本来反馈发射机和接收机处的空间鉴别信息。