| CPC H04W 72/0446 (2013.01) | 12 Claims |

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1. A method, comprising:
receiving, by an integrated access and backhaul (IAB) node including a mobile termination (MT) and a distributed unit (DU), resource configuration information, wherein the resource configuration information includes link directions of a MT resources for the IAB node, wherein the MT resources comprises MT uplink resources and MT downlink resources,
receiving, by the IAB node, guard symbol information through at least one of a cell-specific configuration and a MT-specific configuration; and
determining, by the IAB node, a guard resource for the MT resources based on the resource configuration information and the guard symbol information,
wherein based on the MT of the IAB node performing a switching from an uplink to a downlink, guard symbol information received through the cell-specific configuration is used and based on the MT of the IAB node performing a switching from a downlink to an uplink, guard symbol information received through the MT-specific configuration is used.
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