In next-generation communication such as 5G and New Rat (NR), there emerges a need for enhanced mobile broadband communication compared to the existing radio access technology (RAT) because more communication devices require a greater communication capacity.
Furthermore, massive machine type communications (MTC) that provide various services anywhere and at any time by connecting multiple device and things is also one of major issues to be considered in the next-generation communication.
Furthermore, the design or structure of a communication system in which services and/or UEs sensitive to reliability and latency have been considered is being discussed.
As described above, the introduction of the next-generation radio access technology (RAT) in which enhanced mobile broadband (eMBB) communication, massive MTC (mMTC), ultra-reliable and low latency communication (URLLC) have been considered is being discussed. In the present disclosure, the corresponding technology is commonly referred to as a “New RAT(NR)”, for convenience sake.
The frame format of an NR system has a form of a self-contained structure in which all of a DL control channel, a DL data channel or an UL data channel, and an UL control channel may be included in one frame unit as in