Hybrid time and frequency domain csi feedback scheme
作者： Hemanth Sampath , Albert van Zelst , Didier Johannes Richard Van Nee , Sameer Vermani , Vincent Knowles Jones
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摘要: In a downlink multi-user multiple input output (DL MU-MIMO) system, channel state information (CSI) feedback duration may strongly affect media access control (MAC) efficiency. While time domain compression give significant reduction in duration, the have complexity issues at station (STA). particular, for compression, large complex matrix multiplication be required client to estimate cyclic prefix (CP) length impulse response, which best models frequency response of channel. Embodiments invention comprise hybrid scheme that reduce above while maintaining gains.
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