Messages on sidelink (pc5) are unicasted or broadcasted in v2x communication? If broadcasting then which mechanism is used for broadcasting?
Before sidelink communication (data transmission on PSSCH) happens between UE's, is it sidelink discovery needs to happen? Does the V2x sidelink communication needs discovery?
UE gets DCI format 5/5A for sidelink grant from Enb in PDCCH. Then UE constructs SCI0/SCI1 and transmits on PSCCH to indicate PSSCH resources and MCS etc., How receiving UE knows where to listen for PSCCH in sidelink communication ?
