One disclosure of the present specification provides a method for performing communication by a user equipment (UE). The method comprises the steps of: receiving a downlink signal from a base station, wherein the downlink signal is received via n263 operation band in FR2-2 (Frequency Range2-2), wherein the UE is a power class 2 UE, wherein the UE satisfies REFSENS (Reference Sensitivity) on a first channel bandwidth, wherein, based on the first channel bandwidth being 100 MHz, the REFSENS is −86.3 dBm, wherein, based on the first channel bandwidth being 400 MHz, the REFSENS is −80.3 dBm, wherein, based on the first channel bandwidth being 800 MHz, the REFSENS is −77.3 dBm, wherein, based on the first channel bandwidth being 1600 MHz, the REFSENS is −74.3 dBm, wherein, based on the first channel bandwidth being 2000 MHz, the REFSENS is −73.3 dBm.