Abstract: The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long-term evolution (LTE). A method performed by a receiver in a wireless communication system according to embodiments of the disclosure may include: estimating a channel, based on a received signal; embedding the channel; performing spatial domain attention calculation for acquiring a cross-covariance value of a spatial domain, based on the embedded channel; performing resource element attention calculation for acquiring a cross-covariance value of a resource element domain, based on the embedded channel; and calculating a log likelihood ratio (LLR), based on results of the spatial domain attention calculation and the resource element attention calculation.

Abstract: The disclosure relates to a 6G communication system for achieving high data transmission rates and ultra-low latency after 4G and 5G communication systems. A method performed by a base station in a communication system according to an embodiment of the disclosure may include identifying a first pilot for channel estimation or a second pilot for non-linearity compensation of a PA, identifying pilot information related to at least one of the first pilot and the second pilot, and transmitting, to a terminal, control information including the pilot information.

Abstract: The disclosure relates to a 5th generation (5G) communication system or a 6th generation (6G) communication system for supporting higher data rates beyond a 4th generation (4G) communication system, such as long term evolution (LTE). A method performed by a receiving node in a wireless communication system is provided. The method includes receiving first signals from a transmitting node, identifying compensation values in which distortion of the first signals is compensated on a time domain by using an artificial neural network trained by a designated scheme, and obtaining second signals of which the distortion is compensated based on the identified compensation values. The designated scheme may be determined by a size of a first resource block (RB) assigned to receive the first signals from the transmitting node.

Abstract: The disclosure relates to a 5th generation (5G) communication system or a 6th generation (6G) communication system for supporting higher data rates beyond a 4th generation (4G) communication system, such as long term evolution (LTE). A method performed by a receiving node in a wireless communication system is provided. The method includes receiving first signals from a transmitting node, identifying compensation values in which distortion of the first signals is compensated on a time domain by using an artificial neural network trained by a designated scheme, and obtaining second signals of which the distortion is compensated based on the identified compensation values. The designated scheme may be determined by a size of a first resource block (RB) assigned to receive the first signals from the transmitting node.

Abstract: The disclosure relates to a 6G communication system for achieving high data transmission rates and ultra-low latency after 4G and 5G communication systems. A method performed by a base station in a communication system according to an embodiment of the disclosure may include identifying a first pilot for channel estimation or a second pilot for non-linearity compensation of a PA, identifying pilot information related to at least one of the first pilot and the second pilot, and transmitting, to a terminal, control information including the pilot information.