Methods for transmission configuration and transmission of periodic channel state information, and apparatuses
A technology of channel state information and configuration method, applied in the field of communication, can solve the problems of reducing the accuracy of CSI reporting and affecting the performance of the communication system, and achieve the effects of improving the reporting accuracy, improving the receiving performance, and reducing the adjacent channel leakage ratio
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[0071] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0072] In the existing system, the periodic CSI reported by the user equipment may feed back the following information: RI, wideband PMI, wideband CQI and subband CQI. Among them, RI needs feedback only in the multi-antenna transmission mode that supports Rank (Rank) adaptation, wideband PMI needs feedback only in the transmission mode that supports multi-antenna transmission, and wideband CQI needs feedback in any transmission mode. With CQI, feedback is only requ...
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