| CPC H04L 1/0067 (2013.01) [H04L 5/0051 (2013.01); H04W 24/08 (2013.01); H04W 72/23 (2023.01)] | 15 Claims |

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1. A method by which a terminal performs communication in a wireless communication system, the method comprising:
receiving physical downlink control channel (PDCCH) configuration information and rate matching configuration information from a base station;
based on the PDCCH configuration information and the rate matching configuration information, identifying resource elements (REs) overlapping a rate matching resource from among REs included in PDCCH candidates; and
based on whether a number of ports of signals transmitted via the rate matching resource exceeds a preset value, monitoring a PDCCH candidate comprising the identified REs from among the PDCCH candidates.
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