CHANNEL ESTIMATION METHOD, APPARATUS AND COMMUNICATION SYSTEM

摘要

A channel estimation method, apparatus and communication system are provided in the embodiments of the present invention. The channel estimation method includes the following steps: obtaining received signals, and the received signals include the received pilot signal and the received data signal; obtaining an initial channel estimation value based on the received pilot signal and an initial channel estimation matrix, and the initial channel estimation matrix includes the interference information among sub-carriers; iterating the channel estimation in order to obtain the follow-up channel estimation value according to the initial channel estimation value and the obtained received signals. A corresponding channel estimation apparatus is also provided in the embodiments of the present invention. A communication system including the channel estimation apparatus is also provided in the present invention. The channel estimation method, apparatus and system provided in the embodiments of the present invention consider the impacts of the interference among sub-carriers, thus improving the accuracy of channel estimation.