Enhanced mobile broadband (eMBB), massive machine-type communication (mMTC), and ultra reliable and low latency communication (URLLC) are introduced as representative usage scenarios in the NR. It is necessary for flexible frame structures compared with the LTE/LTE-Advanced to be designed to meet the requirements of the respective usage scenarios.

In particular, there is necessity for designing resource allocation structures differently from one another for each usage scenario, and it is also necessary for effectively designing a frame structure and physical signals/channels thereof for efficiently supporting a NR user equipment operating under resource allocation structures differently designed from one another through one NR frequency band.

It is an objective of the present disclosure is to provide a frame structure capable of supporting various usage scenarios in the NR and a method of performing operations to transmit and/or receive a synchronization signal and system information, between a base station and a user equipment, in one NR frequency band.