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    • 5. 发明申请
    • CHANNEL STATE INFORMATION FEEDBACK METHOD AND USER EQUIPMENT
    • 通道状态信息反馈方法和用户设备
    • WO2013001968A1
    • 2013-01-03
    • PCT/JP2012/063832
    • 2012-05-23
    • SHARP KABUSHIKI KAISHADING, MingHUANG, LeiYANG, ZengLUO, Yuan
    • DING, MingHUANG, LeiYANG, ZengLUO, Yuan
    • H04W24/10H04W28/16
    • H04W24/08H04B7/024H04B7/0626
    • A Channel State Information (CSI) feedback method and a User Equipment (UE) are provided for better support of Joint Transmission (JT) and Beamforming/Coordinated Scheduling (CB/CS). For JT, phase information for an adjacent Base Station (BS) is fed back. For CB/CS, enhanced CSI for an adjacent BS is fed back. The UE according to the present invention includes: a coordinated BS set determining unit configured for determining a set of coordinated BSs participating in multi-BS coordination, the set of coordinated BSs containing a serving BS and at least one non-serving BS; and a CSI feedback unit configured for feeding back CSI for JT or CB/CS for each non-serving BS in the set of coordinated BSs. The present invention has the advantages of simple implementation and low overhead and is applicable in LTE-A and 4G systems.
    • 提供信道状态信息(CSI)反馈方法和用户设备(UE),以更好地支持联合传输(JT)和波束形成/协调调度(CB / CS)。 对于JT,反馈相邻基站(BS)的相位信息。 对于CB / CS,相邻BS的增强型CSI被反馈。 根据本发明的UE包括:配置用于确定参与多BS协调的一组协调BS的协调BS组确定单元,包含服务BS和至少一个非服务BS的协调BS组; 以及CSI反馈单元,被配置为反馈所述协作BS集合中的每个非服务BS的用于JT或CB / CS的CSI。 本发明具有实现简单,开销低的优点,适用于LTE-A和4G系统。