System and method of determining channel access priority for sidelink communication on unlicensed carrier

Abstract

A method performed by a user equipment (UE) in a wireless communication system is provided. The method includes identifying a channel access priority class (CAPC) for sidelink, and performing a channel access procedure for transmitting a sidelink transport block (TB), based on the CAPC for the sidelink, wherein the CAPC for the sidelink is determined as one of: a highest priority CAPC based on a sidelink medium access control control element (MAC CE) included in the sidelink TB, the highest priority CAPC based on a sidelink control channel (SCCH) service data unit (SDU) included in the sidelink TB, or a lowest priority CAPC of at least one sidelink logical channel with MAC SDU multiplexed in the sidelink TB.

Dependencies are inferred from the claim text.