Method for transmitting and receiving signal by iab node, and apparatus therefor

An Integrated Access and Backhaul (IAB) node for receiving an uplink signal in a wireless communication system, the IAB node comprising:

• at least one transceiver;
• at least one processor;
• and
• at least one computer memory operatively connected to the at least one processor and configured to store instructions for causing the at least one processor to perform an operation when being executed, the operation including:
• acquiring timing information related to an uplink reception timing reference for a distributed unit (DU) of the IAB node;
• receiving a first uplink signal by the DU of the IAB node based on the timing information through the at least one transceiver;
• and
• receiving a downlink signal or transmitting a second uplink signal by a mobile-termination (MT) of the IAB node based on the timing information through the at least one transceiver,
• wherein the receiving of the first uplink signal by the DU of the IAB node and the receiving of the downlink signal or the transmitting of the second uplink signal by the MT of the IAB node are performed through the at least one transceiver in the same time resource.

An apparatus for receiving an uplink signal in a wireless communication system, the apparatus comprising:

• at least one processor;
• and
• at least one computer memory operatively connected to the at least one processor and configured to store instructions for causing the at least one processor to perform an operation when being executed, the operation including:
• acquiring timing information related to an uplink reception timing reference for a distributed unit (DU) of the apparatus;
• receiving a first uplink signal by the DU of the apparatus based on the timing information;
• and
• receiving a downlink signal or transmitting a second uplink signal by a mobile-termination (MT) of the apparatus based on the timing information,
• wherein the receiving of the first uplink signal by the DU of the apparatus and the receiving of the downlink signal or the transmitting of the second uplink signal by the MT of the apparatus are performed in the same time resource.