Method for performing MT operation and DU operation by IAB node in wireless communication system, and device therefor

An integrated access and backhaul (IAB) node comprising:

• a Radio Frequency (RF) transceiver;
• and
• a processor connected to the RF transceiver, the processor controlling the RF transceiver to receive a first resource configuration information for an IAB-mobile termination (MT) of the LAB, receive a second resource configuration information for an IAB-distributed unit (DU) of the LAB, perform an IAB-MT reception (Rx) to receive a first downlink signal an IAB-MT transmission (Tx) to transmit a first uplink signal using the IAB-MT of the IAB node based on the first resource configuration information, and perform an IAB-DU Rx to receive a second uplink signal and an IAB-DU Tx to transmit a second downlink signal using the IAB-DU of the IAB node based on the second resource configuration information,
• wherein the first resource configuration information including information for a first resource for the LAB-MT Tx and a second resource for the IAB-MT Rx,
• wherein the second resource configuration information including information for a third resource for the IAB-DU Tx and a fourth resource for the IAB-DU Rx,
• wherein the first resource is configured to be separated from the fourth resource in a time domain and the third resource in a frequency domain, and the second resource is configured to be separated from the third resource in the time domain and the fourth resource in the frequency domain,
• wherein a paired spectrum for a frequency division duplex (FDD) is supported for the IAB node,
• wherein, based on reporting of capability information for simultaneous operations of the IAB-MT and the IAB-DU, the IAB node is configured to perform at least one of (i) a simultaneous operation of the IAB-MT Tx and the IAB-DU Tx, ii) the simultaneous operation of the LAB-MT Rx and the IAB-DU Rx, (iii) the simultaneous operation of the IAB-MT Rx and the IAB-DU Tx, and the IAB-MT Tx or (iv) the simultaneous operation of the IAB-DU Rx, the IAB node is allowed to perform all of the simultaneous operations, and
• wherein, based on an absence of the reporting of the capability information, the IAB node is configured to perform at least one of (i) the simultaneous operation of the IAB-MT Tx and the IAB-DU Tx, or the simultaneous operation of the IAB-MT Rx and the IAB-DU Rx.

At least one non-transitory computer-readable storage medium storing instructions that, when executed by at least one processor, cause the processor to perform operations comprising:

• receiving a first resource configuration information for an integrated access and backhaul (IAB)-mobile termination (MT) of a IAB node;
• receiving a second resource configuration information for an IAB-distributed unit (DU) of the IAB node;
• and
• performing an IAB-MT reception (Rx) to receive a first downlink signal or an IAB-MT transmission (Tx) to transmit a first uplink signal using the IAB-MT of the IAB node based on the first resource configuration information;
• and
• performing an IAB-DU Rx to receive a second uplink signal or an IAB-DU Tx to transmit a second downlink signal using the IAB-DU of the IAB node based on the second resource configuration information,
• wherein the first resource configuration information including information for a first resource for the IAB-MT Tx and a second resource for the IAB-MT Rx,
• wherein the second resource configuration information including information for a third resource for the IAB-DU Tx and a fourth resource for the IAB-DU Rx,
• wherein the first resource is configured to be separated from the fourth resource in a time domain and the third resource in a frequency domain, and the second resource is configured to be separated from the third resource in the time domain and the fourth resource in the frequency domain,
• wherein a paired spectrum for a frequency division duplex (FDD) is supported for the IAB node,
• wherein, based on reporting of capability information for simultaneous operations of the IAB-MT and the IAB-DU, an IAB node including the IAB-MT and the IAB-DU is configured to perform at least one of (i) a simultaneous operation of the IAB-MT Tx and the IAB-DU Tx, (ii) the simultaneous operation of the IAB-MT Rx and the IAB-DU Rx, (iii) the simultaneous operation of the IAB-MT Rx and the IAB-DU Tx, or (iv) the simultaneous operation of the IAB-MT Tx and the IAB-DU Rx, and
• wherein, based on an absence of the reporting of the capability information, the IAB node is configured to perform at least one of (i) the simultaneous operation of the IAB-MT Tx and the IAB-DU Tx, or (ii) the simultaneous operation of the IAB-MT Rx and the IAB-DU Rx.