| 摘要 |
A user equipment (UE) capable of communicating with a base station includes a plurality of antenna ports P, the UE includes a transceiver configured to receive downlink signals indicating precoder codebook parameters, the downlink signal including first and second quantities of antenna ports (N 1 , N 2 ) indicating respective quantities of antenna ports in first and second dimensions, first and second oversampling factors (O 1 , O 2 ) indicating respective oversampling factors for DFT beams in the first and second dimensions, and a codebook subset selection configuration among a plurality of codebook subset selection configurations, and a controller configured to determine first and second beam skip numbers (S 1 , S 2 ) indicating respective differences of leading beam indices of two adjacent beam groups in the first and second dimensions, determine a plurality of precoding matrix indicators (PMIs) including a first PMI (i 1,1 ,i 1,2 ) and a second PMI i 2 , based on the received downlink signals and the skip numbers(S 1 , S 2 ), and cause the transceiver to transmit uplink signals containing the plurality of PMIs to the base station. |
