The UE 600 includes a processor 610, a memory 620 and a transceiver 630. The processor 610 may be configured to implement functions, procedures and/or methods proposed in the present specification. Wireless interface protocol layers may be implemented in the processor 610.
More specifically, the processor 610 may be configured to perform data transmission/reception to/from a donor base station, a first IAB node or a second IAB node on an access link on the basis of the first timing case in an access time duration.
The memory 620 is operably connected to the processor 610 and stores various types of information for operating the processor 610. The transceiver 630 is operably connected to the processor 610 and transmits and/or receives RF signals.
The processor 610 may include an application-specific integrated circuit (ASIC), other chipsets, a logic circuit and/or a data processing device. The memory 620 may include a read-only memory (ROM), a random access memory (RAM), a flash memory, a memory card, a storage medium and/or other storage devices. The transceiver 630 may include a baseband circuit for processing RF signals. When an embodiment is implemented by software, technologies described in the present specification can be implemented by modules (e.g., procedures, functions, and the like) which perform functions described in the present specification. The modules may be stored in the memory 620 and executed by the processor 610. The memory 620 may be provided in the processor 610. Alternatively, the memory 620 may be provided outside the processor 610 and connected to the processor 610 through various known means such that it can communicate with the processor 610.