| 摘要 |
Three dimensional beamforming in mobile networks, comprising, on a network side: configuring at least one channel state information reference signal (CSI-RS) resource (S21), transmitting at least one CSI-RS using said at least one CSI-RS resource (S22), receiving at least one matrix indicator indicative of a precoder selected from a precoder codebook and at least one channel quality indicator (CQI) indicative of a radio channel state, each respectively associated with said at least one CSI-RS (S23), and determining a final precoder for 3D beamforming based on said at least one matrix indicator (S24); and, on a terminal side: receiving the at least one CSI-RS (S31), selecting the at least one precoder from a precoder codebook (S32) and determining the at least one CQI (S33) based on measurements on receiving the CSI-RS, and transmitting the at least one matrix indicator (S34). |
