Abstract: The method of performing local routing comprises configuring a next hop and a destination IAB address in a first IAB node based on an IAB donor, receiving a V2X message from a first terminal accessing the first IAB node, and transmitting the V2X message to a second terminal accessing a second IAB node through the second IAB node based on the local routing. When the first IAB node receives the V2X message from the first terminal through a V2X radio bearer, a backhaul adaptation protocol (BAP) packet data unit (PDU) comprising a BAP header with a V2X local routing bit set to enable and the V2X message may be generated, and the V2X message may be transmitted to the second terminal through the second IAB node based on a BAP layer.

Abstract: a method of operating a reception terminal based on a beam in a wireless communication system may be provided. The method may include the reception terminal receiving at least one sidelink synchronization signal/broadcast block (S-SSB) from a transmission terminal, selecting a best beam based on the at least one S-SSB, transmitting a best beam indication signal indicating the selected best beam to the transmission terminal, and performing a link connection with the transmission terminal based on the best beam. Each of the at least one S-SSB may be associated with each beam index based on a beam direction, each beam index may be associated with each sequence offset, and the best beam indication signal may be generated based on a sequence offset corresponding to the best beam.

Abstract: A method of operating a reception terminal based on a beam in a wireless communication system may be provided. The method may comprise the reception terminal receiving at least one sidelink synchronization signal/broadcast block (S-SSB) from a transmission terminal, selecting a best beam based on the at least one S-SSB, transmitting a best beam indication signal indicating the selected best beam to the transmission terminal, and performing a link connection with the transmission terminal based on the best beam. Each of the at least one S-SSB may be associated with each beam index based on a beam direction, each beam index may be associated with each sequence offset, and the best beam indication signal may be generated based on a sequence offset corresponding to the best beam.

Abstract: The method of performing local routing comprises configuring a next hop and a destination IAB address in a first IAB node based on an IAB donor, receiving a V2X message from a first terminal accessing the first IAB node, and transmitting the V2X message to a second terminal accessing a second IAB node through the second IAB node based on the local routing. When the first IAB node receives the V2X message from the first terminal through a V2X radio bearer, a backhaul adaptation protocol (BAP) packet data unit (PDU) comprising a BAP header with a V2X local routing bit set to enable and the V2X message may be generated, and the V2X message may be transmitted to the second terminal through the second IAB node based on a BAP layer.

Abstract: The purpose of the present disclosure is to deliver a vehicle-to-vehicle (V2V) message in a wireless communication system. An operation method of an integrated access and backhaul (IAB) node may comprise the steps of: establishing a directlink connection with a terminal; receiving data including an event message from the terminal through the directlink connection; and transmitting system information including the event message to at least one terminal.