A method performed by a first user equipment includes identifying sidelink (SL) resource pool information, determining whether a hybrid automatic repeat request (HARQ) retransmission is configured based on the SL resource pool information, and selecting at least one resource for transmission of a physical sidelink shared channel (PSSCH) based on the determining that the HARQ retransmission is configured. The at least one resource is determined for ensuring a time gap, based on at least one of a period of resources configured for a physical sidelink feedback channel (PSFCH), an offset between a slot of a PSSCH transmission and a slot of a PSFCH reception, or a time required for reception and processing of the PSFCH plus a time required for SL retransmission preparation.