in contention based RACH procedure ENB will use CSI field RAR as reservd then How UE will get to know weather to send apriodic CSI to ENB or not?
Network can tell UE to send CSI Report by setting CSI Request field in DCI Format 0. Via PUSCH, CSI field is 1 or 2 bit. Based on that UE will trigger aperiodic CSI.
What is the possibility of cross carrier scheduling in dual connectivity?
gNB can intiate RACH procedure for PDCCH order. But If UE is configured with NUL and SUL , then How UE comes to know for which UL carrier it has to initiate PDCCH order.
