APPARATUS AND METHOD FOR RECEIVING SIGNAL IN A COMMUNICATION SYSTEM

摘要

An apparatus and a method for receiving signals in a communication system are provided to improve signal reception performance by selecting whether to use an interference cancellation scheme, correspondingly to a modulation scheme. An apparatus for receiving signals in a communication system comprises a demodulator(213), a controller(227), a channel estimator(215), and a selector(217). The demodulator(213) receives information about the first modulation scheme, which a serving BS(Base Station) will apply to a frequency domain, from the serving BS, demodulates it. Afterwards, the demodulator(213) receives a signal through the frequency domain and demodulates the received signal. The controller(227) estimates a modulation scheme, which a neighbor BS will apply to the frequency domain, by using the received signal and determines the estimated modulation scheme as the second modulation scheme. The channel estimator(215) estimates the received signal and creates channel state information. The selector(217), based on the channel state information and the information about the first and second modulation schemes, selects whether to use an interference cancellation scheme.