Importance

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Abstract

A terminal device acquires a parameter indispensable in canceling or suppressing an interference signal, cancels or suppresses interference with high precision, and reduces a degradation in reception performance due to the interference. There is provided a first terminal device that communicates with a base station apparatus, including: a higher layer processing unit that determines NAICS information indicating whether or not NAICS has to be used; a reception unit that receives downlink control information which is transmitted from the base station apparatus; and a control unit that changes interpretation of the downlink control information based on a configuration that is determined by the higher layer processing unit, in which, in a case where a result of determining the NAICS information that is determined in the higher layer processing unit indicates that the NAICS has to be used, the control unit interprets the second MCS field as information indicating a modulation scheme of a second terminal device, among a first MCS field for a transport block 1 and a second MCS field for a transport block 2, which are included in the downlink control information.

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First Claim