The method for reception of a signal by a terminal in a wireless communication system according to an embodiment of the present invention may comprise a step of monitoring control channel candidates on the basis of information on precoding granularity. Specifically, even if information on the precoding granularity instructs to the terminal to assume that the reference signal with respect to the control channel candidates is mapped to all resource element groups (REGs) included in consecutive resource blocks in the first control resource set, when some of the consecutive resource blocks overlap with a second control resource set set by a physical broadcasting channel (PBCH), the terminal may not assume that the reference signal with respect to the control channel candidates is mapped to the REGs included in some resource blocks which are overlapping.