Systems, methods, apparatuses, and computer program products for reducing channel state information (CSI) reporting time for cell activation are provided. One method may include receiving, from a network node, one or more semi-persistent (SP) channel state information (CSI) configurations to be employed during secondary cell (SCell) activation, and receiving an activation command for a secondary cell (SCell) and information on a semi-persistent (SP) channel state information (CSI) configuration to be activated from among the one or more semi-persistent (SP) channel state information (CSI) configurations. The method may also include measuring a CSI-reference signal (RS) using the semi-persistent (SP) channel state information (CSI) configuration indicated with the activation command and transmitting a semi-persistent (SP) channel state information (CSI) report for a subset of secondary cells (SCells) available for activation.