The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The present disclosure discloses a method, a terminal and a base station in a wireless communication system. A method performed by a terminal in a wireless communication system according to embodiments of the present disclosure may include: obtaining one or more first configuration information for transmitting and/or receiving a physical channel or physical signal; and transmitting and/or receiving the physical channel or physical signal based on the one or more first configuration information. According to the method provided by the present disclosure, reception performance of physical channels or physical signals under the condition of self-interference can be improved.