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发明公开
CN102195698A 多用户多输入多输出MU-MIMO无线通信系统中的下行链路传输 失效 - 权利终止

多用户多输入多输出MU-MIMO无线通信系统中的下行链路传输
摘要：
本发明提供一种在多输入多输出(“MIMO”)无线通信系统中的信息传输。在一个实施例中，一种用于在MIMO无线通信系统中传输信息的方法，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值考虑到来自到那些与预分配的伴随码字集合相关联的无线设备的传输的干扰效应；至少使用所述CQI值、预编码矩阵索引(“PMI”)值和所述预分配的伴随码字集合来对所述多个无线设备进行配对，其中针对所述多个无线设备中的每一个，更新所述预分配的伴随码字集合、与所述预分配的伴随码字集合相关联的预分配的伴随码字、以及所述PMI值；使用所述PMI值，对所述多个无线设备中的每一个的信息进行预编码；以及向所述多个无线设备中的每一个传输所预编码的信息。
摘要（英）：

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.

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