A user equipment (UE) that performs sidelink (SL) communications is described. The UE includes receiving circuitry configured to: receive a first radio resource control (RRC) message comprising first information used for configuring an SL bandwidth part (SL BWP). The receiving circuitry is also configured to receive a second RRC message comprising second information used for configuring one or more resource pools for SL transmission within the SL BWP. The receiving circuitry is further configured to receive a third RRC message comprising third information used for configuring a sidelink channel state information-reference signal (SCSI-RS). The UE also includes transmitting circuitry configured to perform SL channel state information (CSI) reporting based on the third information. The third information is associated with at least one of the SL BWP and one resource pool of the one or more resource pools for the SL transmission.