Downlink transmission in a multiple-user mimo wireless communication system
    1.
    发明公开
    Downlink transmission in a multiple-user mimo wireless communication system 审中-公开
    下联MU-MIMO-Funkkmunmunations系统中的下行链路

    公开(公告)号:EP2346189A1

    公开(公告)日:2011-07-20

    申请号:EP10172950.7

    申请日:2010-08-16

    IPC分类号: H04B7/06 H04B7/04

    摘要: Information transmission in a multiple-input multiple-output ("MIMO") wireless communication system is provided. In one embodiment, a method for transmitting information in a MIMO wireless communication system, comprising updating channel quality information ("CQI") values of a plurality of wireless devices, wherein updating said CQI values consider the effects of interference from transmissions to those wireless devices associated with a pre-assigned companion codeword set; pairing said plurality of wireless devices using at least said CQI values, a precoding matrix index ("PMI") value and said pre-assigned companion codeword set, wherein said pre-assigned companion codeword set, pre-assigned companion codewords associated with said pre-assigned companion codeword set and said PMI value are updated for each of said plurality of wireless devices; precoding the information for each of said plurality of wireless devices using said PMI value; and transmitting said precoded information to each of said plurality of wireless devices.

    摘要翻译: 提供了多输入多输出(“MIMO”)无线通信系统中的信息传输。 在一个实施例中,一种在MIMO无线通信系统中发送信息的方法,包括更新多个无线设备的信道质量信息(“CQI”)值,其中更新所述CQI值考虑来自传输到那些无线设备的干扰的影响 与预分配的伴随码字集相关联; 使用至少所述CQI值,预编码矩阵索引(“PMI”)值和所述预先分配的伴随码字集合对所述多个无线设备进行配对,其中所述预分配伴随码字集合,与所述预先分配的伴随码字组相关联的预分配伴随码字 所分配的伴随码字集合和所述PMI值针对所述多个无线设备中的每一个更新; 使用所述PMI值对所述多个无线设备中的每一个进行预编码; 以及将所述预编码信息发送到所述多个无线设备中的每一个。