When a UE adopts SC-FDMA for UL transmission, a PUCCH and a PUSCH cannot be simultaneously transmitted on one carrier in 3GPP LTE release 8 or release 9 in order to maintain single carrier characteristic. In 3GPP LTE release 10, a higher layer can indicate whether the PUCCH and the PUSCH are simultaneously transmitted.
In the UL subframe, subcarriers far away from a direct current (DC) subframe are used as a control region. In other words, subcarriers positioned at both ends of a UL transmission bandwidth are allocated to uplink control information transmission. The DC subcarrier is a component that remains without being used for signal transmission and is mapped to a carrier frequency f0 in a frequency upconversion process. A PUCCH for a UE is allocated to an RB pair belonging to resources operating at a carrier frequency and RBs belonging to the RB pair occupy different subcarriers in two slots. Allocation of the PUCCH in this manner is represented as frequency hopping of an RB pair allocated to the PUCCH at a slot boundary. When frequency hopping is not applied, the RB pair occupies the same subcarrier.
Hereinafter, a new radio access technology (new RAT) will be described. The new RAT may be abbreviated as new radio (NR).