Invention Grant
US09231684B2 Finding channel state information with reduced codebook in a multi-antenna wireless communication system 有权
在多天线无线通信系统中用减少的码本查找信道状态信息

Finding channel state information with reduced codebook in a multi-antenna wireless communication system
Abstract:
According to certain embodiments, a method performed by a transmitter to provide a precoder subset to a receiver in a multi-antenna wireless communication system is disclosed. The method includes determining the precoder subset comprising one or more precoder elements, each precoder element being a precoder element of a codebook, and the precoder subset including less than all precoder elements of the codebook. The method further includes providing the precoder subset to the receiver, wherein the codebook is defined for a plurality of ranks. For each rank, the codebook comprises a plurality of precoder elements corresponding to that rank.
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