Described herein is a receiving apparatus and method for receiving signals in a wireless communication system, the signals including a dedicated channel estimation sequence, including a gain control means that controls the gain of a received signal, a channel estimation means that performs a channel estimation on the basis of a dedicated channel estimation sequence included in a received signal, a gain error correction means that corrects a gain error in the result of said channel estimation caused by said gain control means on the basis of the dedicated channel estimation sequence comprised in the received signal, and an equalizing means that performs an equalization on the received signal on the basis of the gain corrected channel estimation result.