A method for transceiving a signal with a Base Station, BS, at a User Equipment, UE, in a wireless communication system, the method comprising: configuring a default configuration of a time resource; receiving, from the BS , first information for a dynamic configuration of the time resource , wherein the dynamic configuration is for informing whether the time resource is configured for an uplink signal transmission or a downlink signal reception; and performing the downlink signal reception from the BS in the time resource or performing the uplink signal transmission to the BS in the time resource, based on the dynamic configuration, wherein a first period for the downlink signal reception is positioned at the start of the time resource and a second period for the uplink signal transmission is positioned at the end of the time resource, wherein the default configuration defines both a size of the first period in the time resource and a size of the second period in the time resource, wherein when the time resource is configured for the downlink signal reception, the dynamic configuration defines only the size of the first period in the time resource, and wherein when the time resource is configured for the uplink signal transmission, the dynamic configuration defines only the size of the second period in the time resource and the first period has a minimum size in the time resource, wherein a legacy UE receives second information for the time resource via broadcast information, wherein the second information is for informing that a Guard Period, GP, length of the time resource is greater than a specific value, and wherein the legacy UE does not transmit the uplink signal and receive the downlink signal in the time resource. configuring a default configuration of a time resource; receiving, from the BS , first information for a dynamic configuration of the time resource , wherein the dynamic configuration is for informing whether the time resource is configured for an uplink signal transmission or a downlink signal reception; and performing the downlink signal reception from the BS in the time resource or performing the uplink signal transmission to the BS in the time resource, based on the dynamic configuration, wherein a first period for the downlink signal reception is positioned at the start of the time resource and a second period for the uplink signal transmission is positioned at the end of the time resource, wherein the default configuration defines both a size of the first period in the time resource and a size of the second period in the time resource, wherein when the time resource is configured for the downlink signal reception, the dynamic configuration defines only the size of the first period in the time resource, and wherein when the time resource is configured for the uplink signal transmission, the dynamic configuration defines only the size of the second period in the time resource and the first period has a minimum size in the time resource, wherein a legacy UE receives second information for the time resource via broadcast information, wherein the second information is for informing that a Guard Period, GP, length of the time resource is greater than a specific value, and wherein the legacy UE does not transmit the uplink signal and receive the downlink signal in the time resource. <EOS>